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Exxonmobil Chemical Patents Inc patents


Recent patent applications related to Exxonmobil Chemical Patents Inc. Exxonmobil Chemical Patents Inc is listed as an Agent/Assignee. Note: Exxonmobil Chemical Patents Inc may have other listings under different names/spellings. We're not affiliated with Exxonmobil Chemical Patents Inc, we're just tracking patents.

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Articles comprising broad molecular weight distribution polypropylene resins

Disclosed herein are embodiments of films which comprise a polypropylene resin comprising at least 50 mol % propylene, an mwd (mw/mn) of greater than 5, and a branching index (g′) of at least 0.95.. . ... Exxonmobil Chemical Patents Inc

Aluminum alkyls with pendant olefins for polyolefin reactions

This invention relates to organoaluminum compounds, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising a support, an organoaluminum compound and a metallocene.. ... Exxonmobil Chemical Patents Inc

Process for making cyclohexanone

Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. ... Exxonmobil Chemical Patents Inc

Ethylene-propylene copolymers with amorphous and semi-crystalline components

This invention relates to a polyolefin composition with (a) 80 to 90 wt % of an amorphous ethylene-propylene copolymer having either no crystallinity or crystallinity derived from ethylene, having about 30 wt % or more units derived from ethylene; (b) 5 to 15 wt % of a semi-crystalline ethylene-propylene copolymer having substantial crystallinity derived from ethylene and having 70 wt % or more units derived from ethylene; and (c) 1 to 5 wt % of a propylene-based elastomer having within the range from 5 to 25 wt % ethylene derived units and having a melting point temperature of less than 110° c. And a mw/mn within the range from 2.0 to 4.0.. ... Exxonmobil Chemical Patents Inc

Thermoplastic polyolefin compositions with ethylene-propylene copolymers

This invention relates to a thermoplastic polyolefin composition with (a) 45 wt % to 70 wt % of a polypropylene having 70 wt % or more units derived from propylene, having a melting point temperature of greater than 130° c. And a melt flow rate from 2 to 80 g/10 min; (b) 20 wt % to 30 wt % of a bimodal ethylene-propylene copolymer comprising: (i) 80 wt % to 90 wt % of an amorphous ethylene-propylene copolymer having about 30 wt % or more units derived from ethylene; (ii) 5 wt % to 15 wt % of a semi-crystalline ethylene-propylene copolymer having 70 wt % or more units derived from ethylene; and (iii) 1 wt % to 5 wt % of a propylene-based elastomer having within the range from 5 wt % to 25 wt % ethylene derived units and having a melting point temperature of less than 110° c. ... Exxonmobil Chemical Patents Inc

Foaming agent masterbatches for foaming thermoplastic vulcanizates

The present disclosure relates to thermoplastic vulcanizate (tpv) compositions and foaming agent masterbatches suitable for foaming, as well as foamed tpv compositions, methods of making the foregoing, and applications of various foamed tpv compositions. In particular, the present disclosure provides foaming agent masterbatches having unconventionally lower loading of foaming agent in carrier polymer. ... Exxonmobil Chemical Patents Inc

Cyclohexanone compositions and processes for making such compositions

Disclosed are novel cyclohexanone compositions, and processes for making such cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. Such cyclohexanone compositions comprise at least 99 wt % cyclohexanone, at most 0.15 wt % water, and at most 500 wppm combined of certain cyclohexanone impurities selected from the group consisting of: benzene, cyclohexene, pentanal, cyclopentanol, cyclohexanol, and phenol.. ... Exxonmobil Chemical Patents Inc

Long chain alcohol

The invention relates to long chain alcohol, to processes for catalytically producing long chain alcohol from carbon monoxide and molecular hydrogen, to equipment useful in such processes, and to the use of long chain alcohol, e.g., for producing fuel, lubricating oil, detergent, and plasticizer. The catalyst is mesoporous and comprises iron and copper.. ... Exxonmobil Chemical Patents Inc

Hydrogenation catalyst, its method of preparation and use

A method of preparing a hydrogenation catalyst, for example, a phthalate hydrogenation catalyst, comprising contacting a silica support having a median pore size of at least about 10 nm with a silylating agent to form an at least partially coated silica support, calcining said coated silica support to form a treated silica support, and depositing a noble metal, preferably ruthenium, on the treated silica support, and optionally contacting the treated silica support with an optional chelating agent to form the hydrogenation catalyst; a hydrogenation catalyst prepared by that method; and a method of hydrogenating unsaturated hydrocarbons, such as phthalates, in which an unsaturated hydrocarbon is contacted with hydrogen gas in the presence of the hydrogenation catalyst of the invention.. . ... Exxonmobil Chemical Patents Inc

Friction-reducing compositions for use in drilling operations

. . Friction-reducing compositions useful for reducing operating torque in a drilling operation are described. Methods of conducting drilling operations using such friction-reducing compositions and lubricant compositions formed from blends of the friction-reducing composition with an oil-based mud composition are also described.. ... Exxonmobil Chemical Patents Inc

Friction-reducing compositions for use in drilling operations

Friction-reducing compositions useful for reducing operating torque in a drilling operation are described. Methods of conducting drilling operations using such friction-reducing compositions and lubricant compositions formed from blends of the friction-reducing composition with an oil-based mud composition are also described.. ... Exxonmobil Chemical Patents Inc

Elastomeric compositions and their use in articles

A dynamically vulcanized alloy contains at least one isobutylene-based elastomer, at least one thermoplastic resin, a cure system, and a lubricant system. The lubricant system is comprised of a metal organic salt and a fatty acid having a phr ratio range of metal organic salt to fatty acid of 0.75:1 to 10:1. ... Exxonmobil Chemical Patents Inc

Aliphatic/aromatic olefin block copolymers

Disclosed herein are copolymers comprising at least one block comprising c8-c12 olefin-derived units, at least one block comprising c4-c6 olefin-derived units, and at least one block comprising c5/c10 olefin-derived units, wherein each block has a number average molecular weight of at least 300 g/mole and two glass transition temperatures (tg). The olefin block copolymers are formed by combining a first olefin with a catalyst at least a first stage to form a first olefin block, and combining a second olefin with the same or different catalyst in at least a separate stage to form a second block. ... Exxonmobil Chemical Patents Inc

Spray-dried olefin polymerization catalyst compositions and polymerization processes for using the same

Disclosed herein are spray-dried catalyst compositions including one or more olefin polymerization catalysts and at least one support of an organosilica material, optionally, with at least one activator. The spray-dried catalyst compositions may be used in polymerization processes for the production of polyolefin polymers.. ... Exxonmobil Chemical Patents Inc

06/28/18 / #20180179309

Single reactor production of polymers in gas or slurry phase

Disclosed are methods for the production of polymers, including random copolymers (rcps), in single reactor gas or slurry phase polymerization processes, and polymer compositions produced therefrom. The methods enable polymers having low melting temperatures to be made in gas and slurry phase polymerization processes, where they conventionally could not be made in these processes due to stickiness and fouling problems in the reactor.. ... Exxonmobil Chemical Patents Inc

06/28/18 / #20180178199

Templated active material

The invention relates to templated active material, including those deriving order from organic and/or inorganic templating agents. The invention also relates to methods for producing templated active material, and to active material produced by such methods, and the use of such templated active material for producing oxygenate.. ... Exxonmobil Chemical Patents Inc

06/21/18 / #20180171239

Pyrolysis tar conversion

A process is provided for determining the suitability of pyrolysis tar, such as steam cracker tar, for upgrading using hydroprocessing without long term fouling of the hydroprocessing reactor. The process includes heating a sample of the tar, quenching the sample, and measuring the total free radical content of the quenched sample. ... Exxonmobil Chemical Patents Inc

06/21/18 / #20180171129

Carpet compositions and methods of making the same

This invention relates to carpet backing layer compositions including a blend of polyolefins (e.g., propylene-based elastomers) which have enhanced flexibility and good processability. Carpets including such backing layer compositions and methods of making such carpets are also provided.. ... Exxonmobil Chemical Patents Inc

06/21/18 / #20180171049

Methods for making high density polyethylene compositions

Methods for making a high density polyethylene composition are provided. The methods can include contacting ethylene and at least one non-ethylene comonomer with a catalyst system in a gas phase reactor in the presence of hydrogen at an ethylene partial pressure of 100 psi or more to produce a polyethylene copolymer. ... Exxonmobil Chemical Patents Inc

06/21/18 / #20180171040

Catalyst composition comprising fluorided support and processes for use thereof

This invention relates to a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds, where the first metallocene is a bridged monocyclopentadienyl group 4 transition metal compound and the second metallocene is a biscyclopentadientyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° c. Or more, and is preferably produced using a west mixing method, such as an aqueous method.. ... Exxonmobil Chemical Patents Inc

06/21/18 / #20180170832

Process for steam cracking hydrocarbons

A steam cracking process for converting hydrocarbons into smaller hydrocarbons, particularly olefins, in a tube reactor comprising a convection section, a cross-over section, and a radiant section. The process includes heating the fluid mixture inside the tube to a temperature at the end of the convection section where significant cracking occurs in the cross-over section. ... Exxonmobil Chemical Patents Inc

06/14/18 / #20180162973

Production of polyolefins with internal unsaturation structures using a metallocene catalyst system

This invention relates to a process to polymerize olefins, particularly to produce ethylene polymers with internal unsaturation structures.. . ... Exxonmobil Chemical Patents Inc

06/14/18 / #20180162964

Supported metallocene catalyst systems for polymerization

This invention relates to supported metallocene catalyst systems for polymerization, the catalyst systems comprising asymmetrically substituted indenyl groups, high surface area supports, and aluminoxane activators. This invention also relates to methods for polymerizing olefins, including methods for producing isotactic polypropylene.. ... Exxonmobil Chemical Patents Inc

06/14/18 / #20180162962

Recovery of unreacted monomers from olefin polymerization processes

A process, for recovery of unreacted olefin monomer(s) from a particulate product of an olefin polymerization reactor, the particulate polymer product is supplied to a degassing vessel, where the particulate product is countercurrently contacted with at least a first gaseous stripping stream, which includes at least 5% by weight unreacted olefin monomer, and then with an inert gas stream under conditions effective to strip hydrocarbon impurities from the polymer product and produce a stripped polymer product, is provided.. . ... Exxonmobil Chemical Patents Inc

06/07/18 / #20180155538

Heat sealable propylene-based films

. . Disclosed herein are multilayer films including at least one layer that comprises and/or is formed from a composition comprising a propylene polymer and a hydrocarbon resin. The films generally further include at least one layer that comprises and/or is made from a composition comprising a propylene-based elastomer and/or a propylene polymer. ... Exxonmobil Chemical Patents Inc

06/07/18 / #20180155474

Broad orthogonal distribution metallocene polyethylenes for films

A polyethylene useful for a film including ethylene derived units and within a range from 0.5 to 20 wt % of c3 to c12 α-olefin derived units, an i2 value within a range from 0.5 to 20 g/10 min, an i21 value within a range from 5 to 100 g/10 min, the polyethylene formed from a process comprising combining a bridged bis-cyclopentadienyl group 4 metal catalyst, an unbridged bis-cyclopentadienyl group 4 metal catalyst, and an activator with ethylene and within a range from 0.1 to 5 wt %, relative to the weight of all monomers, of a c3 to c12 α-olefin at a temperature within a range from 60 to 100° c.. . ... Exxonmobil Chemical Patents Inc

06/07/18 / #20180155471

Poly(vinylbiphenyl) and poly(vinylcyclohexylstyrene) polymers and articles therefrom

Disclosed is an article comprising polymers and copolymers selected from the group consisting of poly(vinylbiphenyl), poly(vinylcyclohexylstyrene), substituted versions thereof, and blends thereof, the polymer or copolymer having a weight average molecular weight (mw) of at least 100 kg/mole and a glass transition temperature (tg) of at least 100° c. The polymers are desirably processed in the melted state at a temperature of at least 150° c. ... Exxonmobil Chemical Patents Inc

06/07/18 / #20180155459

Olefin polymerization catalyst systems and methods for making the same

Borate activated catalyst systems and methods for making the same for gas phase or slurry phase olefin polymerization are provided. The catalyst system can include a first catalyst comprising a borate activated mono cyclopentadienyl metallocene compound and a second catalyst comprising a supported bis cyclopentadienyl metallocene complex. ... Exxonmobil Chemical Patents Inc

06/07/18 / #20180155255

Process of producing paraxylene by the methylation of toluene and/or benzene

A process for producing paraxylene by the catalytic alkylation of benzene and/or toluene with methanol. In prior art processes, water is typically co-injected with the methanol to improve the utilization of methanol, increase the amount of methanol that reacts with the benzene and/or toluene, and decrease the amount of methanol that decomposes to undesirable carbon monoxide, carbon dioxide, or water or reacts with itself to produce unwanted light olefinic gases. ... Exxonmobil Chemical Patents Inc

05/31/18 / #20180148406

Process and reactor system for oxidizing cycloalkylbenzene

Disclosed are processes and systems for oxidizing cycloalkylbenzene such as cyclohexylbenzene to make an oxygenate such as a hydroperoxide thereof. A liquid distributor having multiple liquid ingress ports is used for supplying a cycloalkylbenzene-containing liquid into an oxidation reactor in the form of liquid streams forming part of the reaction medium. ... Exxonmobil Chemical Patents Inc

05/24/18 / #20180142179

Lubricant containing high-viscosity metallocene polyalpha-olefins

A lubricant composition comprising a high-viscosity pao lubricant base stock having a kv100 of at least 200 cst and comprising multiple pao molecules comprising at least 200 carbon atoms per molecule, wherein (i) each of the pao molecules comprises multiple pendant groups; (i) the average pendant group length of all the pendant groups excluding one methyl on each of the pao molecules among at least 90 mol % of all of the pao molecules, if one or more methyl is present, is at least 6.0, and (iii) the concentration of the high-viscosity pao base stock is no more than 75 wt % of the total weight of the lubricant composition. The lubricant composition exhibits provides a high degree of protection of gear surfaces as measured by astm d5182.. ... Exxonmobil Chemical Patents Inc

05/24/18 / #20180142046

Catalyst system comprising supported alumoxane and unsupported alumoxane particles

The invention is directed to a supported olefin polymerization catalyst system comprising catalyst compound, silica support and alumoxane activator, where part of the alumoxane is present on the support and part of the alumoxane is not associated with the support, wherein the silica comprises silica particles having an average surface area of greater than about 400 m2/g, an average pore diameter of less than about 70 angstroms, and wherein alumoxane is present on the support in an amount of less than 7 mmol al/g silica and at least 1 wt % of alumoxane particles not associated with the support are present in the catalyst system, based upon the weight of the catalyst system.. . ... Exxonmobil Chemical Patents Inc

05/24/18 / #20180142045

Catalyst system containing high surface area supports and sequential polymerization to produce heterophasic polymers

This invention relates to propylene polymers having multimodal molecular weight distribution and propylene polymerization processes using single site catalyst systems with supports having multimodal particle size distribution comprising one mode peaked at particle size of 3-70 μm, and another mode peaked at particle size of 70-200 μm, the support also having an average particle size of more than 30 μm up to 200 μm and a specific surface area of 400-800 m2/g.. . ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134828

Polyethylene composition

This invention relates to ethylene polymers obtained using a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds (a bridged monocyclopentadienyl group 4 transition metal compound and a biscyclopentadientyl group 4 transition metal compound), where the fluorided support has not been calcined at a temperature of 400° c. Or more, and is preferably produced using a wet mixing method, such as an aqueous method. ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134827

Branched propylene polymers produced via use of vinyl transfer agents and processes for production thereof

This invention relates to the use of pyridyldiamido and/or quinolinyldiamido transition metal complexes and catalyst systems with an activator and a metal hydrocarbenyl chain transfer agent, such as an aluminum vinyl-transfer agent (avta), to produce branched propylene polymers, preferably propylene-ethylene copolymers or propylene-ethylene-diene monomer copolymers.. . ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134817

Catalyst compositions and use thereof

This invention relates to novel transition metal catalyst compounds comprising four oxygen atoms bonded to a transition metal where two of the oxygen groups are bonded to the metal by dative bonds and a silyl or germyl bridge, catalyst systems comprising such, and polymerization processes using such.. . ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134816

Polymers produced via use of quinolinyldiamido transition metal complexes and vinyl transfer agents

Catalyst systems with single site transition metal complexes (such as quinolinyldiamide transition metal complexes), an activator, and a metal hydrocarbenyl transfer agent (preferably an aluminum vinyl-transfer agent) are disclosed for use in alkene polymerization.. . ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134637

Catalyst compositions and their use in transalkylation of heavy aromatics to xylenes

Disclosed are catalyst compositions and their use in a process for the conversion of a feedstock containing c8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a zeolite which comprises a mor framework structure and a mfi and/or mel framework structure, (b) at least one first metal of group 10 of the iupac periodic table, and (c) optionally at least one second metal of group 11 to 15 of the iupac periodic table. ... Exxonmobil Chemical Patents Inc

05/17/18 / #20180134636

Production of monoalkyl aromatic compounds

The present disclosure relates to a process for production of a monoalkyl aromatic compound by alkylation of alkylatable aromatic compounds with an alkylating agent in a reactor comprising at least a first and a second series-connected alkylation reaction zones and a cooler disposed between the first and the second series-connected alkylation reaction zones. The process comprising a step of cooling at least a portion of an effluent withdrawn from the first alkylation reaction zone before being introduced into the second alkylation reaction zone.. ... Exxonmobil Chemical Patents Inc

05/10/18 / #20180127527

High softening point hydrocarbon resins

A hydrocarbon polymer modifier (hpm) is an interpolymer of (i) a vinyl cyclohexene component (ii) a piperylene component; and (iii) a c8-c12 vinyl aromatic component; and wherein the interpolymer comprises (a) a softening point from 40° c. To 160° c., (b) mn greater than 400, (c) mz less than 15,000, and (d) at least 8 mole percent aromatic hydrogen, based on the total moles of hydrogen in the interpolymer.. ... Exxonmobil Chemical Patents Inc

05/10/18 / #20180127519

Process for drying polymers

A method for controlling the temperature of the inner surface of a transfer line dryer, and thus controlling the temperature of a polymer product flowing through the transfer line dryer, is explained. Also provided is a transfer line dryer apparatus that is useful for implementing the disclosed method.. ... Exxonmobil Chemical Patents Inc

05/10/18 / #20180126707

Multilayer films and methods of making the same

Disclosed are multilayer films which can provide balanced improvement in film mechanical performance, where the film comprises a propylene-based polymer and an elastic ethylene copolymer.. . ... Exxonmobil Chemical Patents Inc

05/10/18 / #20180126697

Multi-layered sheets comprising a high melt strength polypropylene

A multi-layered sheet or profile comprising at least one layer of a high melt strength polypropylene and one layer of another polyolefin, the high melt strength polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (mwdri/mndri) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 20 cn determined using an extensional rheometer at 190° c. The sheets can be incorporated into thermoformed articles such as pallets, blow molded into hollow containers and drums, and the high melt strength polypropylene can be a layer making up a profile such articles as pipes, all of which are further described herein.. ... Exxonmobil Chemical Patents Inc

05/03/18 / #20180118861

Polymerization process

A process including contacting one or more monomers, at least one catalyst system, and a condensing agent including a majority of 2,2-dimethylpropane under polymerizable conditions to produce a polyolefin polymer is provided.. . ... Exxonmobil Chemical Patents Inc

05/03/18 / #20180118860

Supported catalyst systems and processes for use thereof

This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes a pyridyldiamido transition metal complex, a metallocene compound, a support material and, optionally, an activator. ... Exxonmobil Chemical Patents Inc

04/19/18 / #20180105631

Silane-functionalized hydrocarbon polymer modifiers for elastomeric compositions

An elastomeric composition and method incorporating a hydrocarbon polymer modifier with improved permanence. The composition comprises elastomer, filler and silane-functionalized hydrocarbon polymer modifier (si-hpm) made in a pre-reaction adapted to couple the si-hpm to the elastomer, filler or both, wherein the si-hpm comprises an interpolymer of monomers chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof.. ... Exxonmobil Chemical Patents Inc

04/19/18 / #20180105624

High filler loaded compositions with high melt flow polyolefins

This disclosure relates to a composition comprising (a) a blend; (b) one or more fillers comprising at least one of carbon black, ferrite magnet powder, calcium carbonate, alumina trihydrate, magnesium hydroxide, talc, titanium dioxide, fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, calcium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, clay, nanoclay, organo-modified clay or nanoclay, glass microspheres, chalk, or any combination thereof. The cross-linking agents comprise organic peroxide, and the coagents comprise at least one of di- and tri-allyl cyanurates and isocyanurates, liquid and metallic multifunctional acrylates and methacrylates, zinc-based dimethacrylates and diacrylates, and functionalized polybutadiene resins and optionally (c) a cross-linking pack including cross-linking agents and coagents.. ... Exxonmobil Chemical Patents Inc

04/19/18 / #20180104942

Multilayer films and methods of making the same

Disclosed are multilayer films which can provide desired film performance suited for packaging applications favoring cost-effectiveness.. . ... Exxonmobil Chemical Patents Inc

04/12/18 / #20180100061

Thermoplastic elastomer compositiions comprising ultrahigh molecular weight polyethylene and methods for making the same

Described herein are thermoplastic elastomer compositions that comprise 30-60 wt % of a thermoplastic vulcanizate, 5 to 25 wt % of a thermoplastic resin, 5 to 25 wt % of a high density polyethylene, and 5 to 40 wt % of a ultrahigh molecular weight polyethylene. The thermoplastic elastomer compositions may be particularly useful in forming laminates, such as slip coat laminates for glass run channels.. ... Exxonmobil Chemical Patents Inc

04/12/18 / #20180099915

Process for selectivating catalyst for producing paraxylene by methylation of benzene and/or toluene

A process is described for producing paraxylene, in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a constraint index ≤5, and the alkylation conditions comprise a temperature less than 500° c. ... Exxonmobil Chemical Patents Inc

04/12/18 / #20180099913

Process for producing paraxylene by methylation of benzene and/or toluene

A process is described for producing paraxylene, in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a constraint index≤5, and the alkylation conditions comprise a temperature less than 500° c. ... Exxonmobil Chemical Patents Inc

04/05/18 / #20180094089

Propylene-based impact copolymers

. . An impact copolymer comprising a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (mwmalls/mn) greater than 10, a branching index (g′) of less than 0.97, and a melt strength greater than 40 cn, and an elastomer. Also disclosed is a method of making an impact copolymer composition comprising melt-blending the components, sequentially or simultaneously a polypropylene resin comprising at least 50 mol % propylene, and having a molecular weight distribution (mw/mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cn determined using an extensional rheometer at 190° c.; and within the range from 0.01 to 3 wt % of at least one organic peroxide; and an elastomer.. ... Exxonmobil Chemical Patents Inc

03/29/18 / #20180086859

Supported catalyst systems and processes for use thereof

This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes a pyridyldiamido transition metal complex, an activator and a support material. ... Exxonmobil Chemical Patents Inc

03/29/18 / #20180085989

System and process for halogenating olefinic-derived elastomers in the bulk phase

A system for halogenating olefinic-based elastomer, the system comprising a first extruder, a first kneader vessel downstream of said first extruder and in fluid communication with said first extruder, a second extruder downstream of said first kneader vessel and in fluid communication with said first kneader vessel, a second kneader vessel downstream of said second extruder and in fluid communication with said second extruder; and a third extruder downstream of said second kneader vessel and in fluid communication with said second kneader vessel.. . ... Exxonmobil Chemical Patents Inc

03/22/18 / #20180079900

Compositions of olefin block copolymers and propylene-based elastomers

Polymer blends comprising at least one olefin block copolymer such as poly(ethylene-b-ethylene/propylene-b-ethylene), and at least one propylene-based elastomer such as a propylene-ethylene random copolymer, such blends useful in elastic hygiene articles. The blends have improved permanent set compared to the propylene-based elastomer alone.. ... Exxonmobil Chemical Patents Inc

03/22/18 / #20180078928

Synthesis of zsm-5

A molecular sieve having the framework structure of zsm-5 is produced using one or more of 1,4-bis(n-pentylpyrrolidinium)butane dications, 1,5-bis(n-pentylpyrrolidinium)pentane dications, and 1,6-bis(n-pentylpyrrolidinium)hexane dications as a structure directing agent.. . ... Exxonmobil Chemical Patents Inc

03/15/18 / #20180072823

Catalyst composition comprising fluorided support and processes for use thereof

This invention relates to a catalyst system including fluorided silica, alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° c. Or more, and is preferably, produced using a wet mix method, particularly an aqueous method.. ... Exxonmobil Chemical Patents Inc

03/15/18 / #20180072766

Group 3 metal catalyst system and process to produce ethylene polymers therewith

This invention relates to a process to using dimers of a group 3 metal (typically scandium) catalyst compound to produce ethylene polymers, such as ethylene-alpha-olefin copolymers and ethylene-conjugated diene copolymers.. . ... Exxonmobil Chemical Patents Inc

03/08/18 / #20180066083

Cyclopropyl substituted metallocene catalysts

This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having at least one arenyl ligand substituted with: 1) a cyclopropyl group and, optionally, 2) at at least one other group, such as a hydrocarbyl, a heteroatom or a heteroatom containing group.. . ... Exxonmobil Chemical Patents Inc

03/08/18 / #20180065903

Process for making cyclohexanone and/or phenol

In a process for separating a mixture comprising cyclohexanone and phenol, a solid-phase basic material, such as basic ion-exchange resin, is used to remove acid and/or sulfur from the mixture prior to separation. The process results in reduced amount of contamination such as cyclic ethers in the cyclohexanone and/or phenol products.. ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180059076

Integrated high-throughput methods to characterize multi-component polymers

. . A method of analyzing a multi-component polymer comprising: (a) dissolving an multi-component polymer having a primary monomer and primary comonomer to form a first volume (soluble portion of multi-component polymer); (b) injecting a portion of the first volume into a chromatographic column to get elution first slices, leaving a second volume behind; (c) filtering the second volume to isolate multi-component polymer solids; (d) dissolving solids to form solution third solution (insoluble portion of multi-component polymer); (e) injecting a portion of third solution into the chromatographic column to get elution second slices; (f) obtain infra-red spectra at wavelengths suitable for the primary monomer and the primary comonomer of first and second elution slices, separately; and (g) for each elution slice, separately calculate: (i) the different polymer components (soluble and insoluble); and (ii) the comonomer content of each component (soluble and insoluble).. . ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180058764

Spiral heat exchanger as preheater in polymer devolatilization processes

This invention relates to a process for forming polymer including: polymerizing a monomer dissolved in a solvent in the presence of a catalyst system under conditions to obtain a first effluent stream including a solution of the polymer and the solvent; heating the first effluent stream in at least one spiral heat exchanger to produce a second effluent stream, where the first effluent stream flows through the spiral heat exchanger in a cross-flow direction relative to spirals of the spiral heat exchanger and performing a separation on the second effluent stream to produce: a third effluent stream including polymer substantially free of the solvent; and a recycle stream including the solvent and unreacted monomer. Processes for devolatilizing a polymer stream are also provided herein.. ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180057759

Upgrading hydrocarbon pyrolysis tar

A process is described for upgrading pyrolysis tar, such as steam cracker tar, by hydroprocessing in the presence of a utility fluid. The hydroprocessing conditions comprise a pressure >8 mpa and a weight hourly space velocity of combined pyrolysis tar and utility fluid >0.3 hr−1 and are selected so that the hydrogen consumption rate is in the range of 270 to 445 standard cubic meters/cubic meter (s m3/m3) of pyrolysis tar.. ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180057453

Alkylaromatic sulfonate compositions from mixed hydrocarbons

Provided herein are various methods for forming alkylaromatic sulfonate compositions and blended alkylaromatic sulfonate compositions, and such compositions themselves. The methods of various embodiments include obtaining a c8-c30 hydrocarbon mixture, optionally treating the mixture to concentrate the mixture in sulfonatable aromatics, and sulfonating the mixture to form the alkylaromatic sulfonates. ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180057452

Alkylaromatic sulfonate compositions from mixed hydrocarbons

Provided herein are various methods for forming alkylaromatic sulfonate compositions and blended alkylaromatic sulfonate compositions, and such compositions themselves. The methods of various embodiments include obtaining a c8-c30 hydrocarbon mixture, optionally treating the mixture to concentrate the mixture in sulfonatable aromatics, and sulfonating the mixture to form the alkylaromatic sulfonates. ... Exxonmobil Chemical Patents Inc

03/01/18 / #20180057451

Alkylaromatic sulfonate compositions from mixed hydrocarbons

Provided herein are various methods for forming alkylaromatic sulfonate compositions and blended alkylaromatic sulfonate compositions, and such compositions themselves. The methods of various embodiments include obtaining a c8-c30 hydrocarbon mixture, optionally treating the mixture to concentrate the mixture in sulfonatable aromatics, and sulfonating the mixture to form the alkylaromatic sulfonates. ... Exxonmobil Chemical Patents Inc

02/22/18 / #20180051160

Stabilized balanced melt strength and strain hardened polypropylene

A composition comprising the reaction product of a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (mw/mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cn determined using an extensional rheometer at 190° c.; within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the composition; and within the range from 5 to 4000 ppm of at least one alkyl-radical scavenger such as a tocopherol, by weight of the composition, all melt blended at a temperature of at least the melting point temperature of the polypropylene.. . ... Exxonmobil Chemical Patents Inc

02/22/18 / #20180050971

Transalkylated cyclohexylbenzyl and biphenyl compounds

Processes for selectively alkylating and/or dealkylating one ring of cyclohexylbenzyl and/or biphenyl compounds are provided. Such selective alkylation and/or dealkylation takes place through a transalkylation reaction between the cyclohexylbenzyl compound and a substituted or unsubstituted benzene, which replaces the phenyl moiety of the cyclohexylbenzyl compound. ... Exxonmobil Chemical Patents Inc

02/15/18 / #20180044514

Propylene-olefin copolymers and methods for making the same

Provided is a composition having 70 wt % to 90 wt % of a first propylene-olefin copolymer component having an ethylene content of 15 to 21 wt %; and 10 wt % to 30 wt % of a second propylene-olefin copolymer component having an ethylene content of 6 to 10 wt %; wherein the weight average molecular weight of the first component is 250,000 to 1,780,000 g/mol higher than the weight average molecular weight of the second component; wherein the reactivity ratio product of the first component is less than 0.75; wherein the reactivity ratio product of the second component is greater than or equal to 0.75.. . ... Exxonmobil Chemical Patents Inc

02/15/18 / #20180044513

Propylene-alpha olefin copolymers and methods for making the same

Provided is a composition having 60 wt % to 95 wt % of a first propylene alpha-olefin copolymer component having a reactivity ratio product of less than 0.75 and a weight average molecular weight of greater than about 450,000 g/mol; and 5 wt % to 40 wt % of a second propylene alpha-olefin copolymer component having a reactivity ratio of greater than 1.5 and a weight average molecular weight of less than about 215,000 g/mol.. . ... Exxonmobil Chemical Patents Inc

02/15/18 / #20180044453

Methods for supplying solid catalysts to a solution polymerization reactor

Disclosed is a solution polymerization process, or, alternatively, a method of delivering powder catalysts to a solution polymerization reactor, comprising combining a homogeneous single-site catalyst precursor with α-olefin monomers to form a polyolefin, wherein the homogeneous single-site catalyst precursor is in the form of (i) a dry powder, (ii) suspended in a aliphatic hydrocarbon solvent, or (iii) suspended in an oil or wax, wherein the homogeneous single-site catalyst precursor is at a concentration greater than 0.8 mmole/liter when suspended in the aliphatic hydrocarbon solvent prior to entering the solution polymerization reactor.. . ... Exxonmobil Chemical Patents Inc

02/15/18 / #20180044260

Oxygenated hydrocarbon conversion zoned method

Processes are provided for conversion of oxygenated hydrocarbon, such as methanol and/or dimethyl ether, to aromatics, such as a para-xylene, and olefins, such as ethylene and propylene. The processes entail using a reactor having multiple reaction zones where each zone is prepared to promote desired reactions.. ... Exxonmobil Chemical Patents Inc

02/15/18 / #20180043670

Multilayer films and methods thereof

Disclosed are multilayer films which can provide desired mechanical performance suited for flexible packaging applications.. . ... Exxonmobil Chemical Patents Inc

02/08/18 / #20180037780

Adhesive compositions made from propylene-based polymers and crystalline c2/c3 homopolymer

The present invention is related to adhesive composition, having a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the polymer blend has a melt viscosity, measured at 190° c. And determined according to astm d-3236, of about 1,000 cp to about 5,000 cp; a propylene polymer; and wherein the adhesive composition is substantially free of a functionalized polyolefin, wherein the functionalized polyolefin is selected from at least one of a maleic anhydride-modified polypropylene and a maleic anhydride-modified polypropylene wax.. ... Exxonmobil Chemical Patents Inc

02/08/18 / #20180037521

Unsaturated polyalpha-olefin materials

Unsaturated polyalpha-olefin (upao) materials comprising a mixture of vinylidene olefins, 1,2-di-substituted vinylene olefins, and tri-substituted vinylene olefins. The unsaturated pao material can be made from alpha-olefin monomer(s) in the presence of a metallocene-compound-based catalyst system. ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030258

Propylene-based polymer compositions for injection molding

The present invention is related to a propylene-based injection molded composition made from a polymer blend comprising from 45 to 85 wt % of a polymer blend modifier having a weight average molecular weight of 10,000 to 100,000 g/mole and from 15 to 55 wt % of a propylene-based elastomer having a weight average molecular weight of from 100,000 to 300,000 g/mole, where the weight percent of the polymer blend modifier and the propylene-based elastomer are based on the total weight of the polymer blend. The polymer blend modifier comprises a first propylene-based polymer and a second propylene-based polymer, where the first and second propylene-based polymers are different and are individually selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin.. ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030257

Propylene-based polymer compositions for grip applications

The present invention is related to a grip composition comprising 5 to 10 wt % of a polymer blend modifier, having a weight average molecular weight of 10,000 to 100,000 g/mole, 65 to 75 wt % of a propylene-based elastomer, having a weight average molecular weight of 100,000 to 300,000 g/mole, and a mineral powder. The polymer blend modifier comprises a first propylene-based polymer and a second propylene-based polymer, where the first and second propylene-based polymers are different and are individually selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin. ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030219

Method of making thermoplastic vulcanizates and thermoplastic vulcanizates made therefrom

The present disclosure relates to a method for making thermoplastic vulcanizates comprising dynamically vulcanizing an elastomer in an extrusion reactor with a curative in the presence of a thermoplastic resin to form a thermoplastic vulcanizate. Process oil is added to the extrusion reactor at a first, second, and third location, where the amount of process oil introduced at the first oil injection location is less than that introduced at the second oil injection location, where the third oil injection location is downstream of where the curative is introduced to the extrusion reactor, and where the thermoplastic vulcanizate comprises at least 25 wt % of oil based on the weight of the thermoplastic vulcanizate.. ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030177

Polymerization processes using high molecular weight polyhydric quenching agents

This disclosure describes polymerization processes and processes for quenching polymerization reactions using high molecular weight polyhydric quenching agents.. . ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030167

Phenolate transition metal complexes, production and use thereof

Phenolate ligands and transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.. . ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180030162

Heterocyclic amido transition metal complexes, production and use thereof

Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3, 4, or 5 transition metal, where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring.. ... Exxonmobil Chemical Patents Inc

02/01/18 / #20180029025

Catalyst system and use in heavy aromatics conversion processes

Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing c8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst system comprises (a) a first catalyst bed comprising a first catalyst composition, said first catalyst composition comprising a zeolite having a constraint index of 3 to 12 combined (i) optionally with at least one first metal of group 10 of the iupac periodic table, and (ii) optionally with at least one second metal of group 11 to 15 of the iupac periodic table; and (b) a second catalyst bed comprising a second catalyst composition, said second catalyst composition comprising (i) a meso-mordenite zeolite, combined (ii) optionally with at least one first metal of group 10 of the iupac periodic table, and (iii) optionally with at least one second metal of group 11 to 15 of the iupac periodic table, wherein said meso-mordenite zeolite is synthesized from tea or mtea and having a mesopore surface area of greater than 30 m2/g and said meso-mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by tem of less than 80 nm and an aspect ratio of less than 2.. ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180023018

Shear-stable oil compositions and processes for making the same

. . An oil composition comprising a first component having pendant groups, a second component having two or more terminal carbon chains, and optionally a third component, where a single molecule of the second component can form shearable stable structure with two molecules of the first component via van der waals force between pendant groups and the terminal carbon chains. Shear stability of the oil can be improved if the total concentration of the heavy fraction of the shearable stable structure is controlled at a low concentration.. ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180023017

Shear-stable oil compositions and processes for making the same

An oil composition comprising a first component having pendant groups and a second component but free of a third component and process for making such oil composition, where a single molecule of the third component can form large shearable stable complex structure with two molecules of the first component via van der waals force between pendant groups and the terminal carbon chains, and a single molecule of the second component is capable of adjoining no more than one molecule of the first type. The oil composition has high shear stability making it suitable for use in lubricants subject to repeated high shear stress events.. ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180023008

Production of xylenes from syngas

This disclosure relates to the production of xylenes from syngas, in which the syngas is converted to an aromatic product by reaction with a fischer-tropsch catalyst and an aromatization catalyst. The fischer-tropsch catalyst and aromatization catalyst may be different catalysts or combined into a single catalyst. ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022907

Bimodal polypropylene compositions and method of making same

The present invention relates to a bimodal polypropylene composition comprising a blend of a hmw polypropylene component and a lmw polypropylene component, where the high molecular weight (hmw) component of the bimodal composition has a z-average molecular weight mz of more than 400,000 g/mole, and a process to make such composition. The composition is suitable for thermoformed articles and injection molded articles.. ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022843

Bimodal propylene polymers and sequential polymerization

This invention relates to high porosity (≧15%) and/or low pore diameter (pd<165 μm) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (sa≧400 m2/g), low pore volume (pv≦2 ml/g), a specific mean pore diameter range (pd=1-20 nm), and high average particle size (ps≧30 μm).. . ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022669

Process for xylenes isomerization

A process for the isomerization of a para-xylene depleted, meta-xylene rich stream under at least partially liquid phase conditions using zsm-23 with an external surface area of at least 75 m2/g (indicating a small crystallite size), and a sio2/al2o3 ratio between 15 and 75 that produces a higher than equilibrium amount of para-xylene, i.e., more than about 24 wt % of para-xylene, based on the total amount of xylenes.. . ... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022667

Hydrocarbon dehydrocyclization in the presence of carbon dioxide

The invention relates to converting non-aromatic hydrocarbon in the presence of co2 to produce aromatic hydrocarbon. Co2 methanation using molecular hydrogen produced during the aromatization increases aromatic hydrocarbon yield. ... Exxonmobil Chemical Patents Inc

01/18/18 / #20180016414

Polypropylenes having balanced strain hardening, melt strength, and shear thinning

A composition comprising the reaction product of a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (mw/mn) greater than 6, a branching index (g′vis) of at least 0.97, and a melt strength greater than 10 cn determined using an extensional rheometer at 190° c.; and within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the polypropylene and organic peroxide. Such hyperbranched polypropylenes are useful in films, foamed articles, and thermoformed articles.. ... Exxonmobil Chemical Patents Inc

01/18/18 / #20180016207

Treatment of aromatic alkylation feedstock

In a process and system for treatment of feed stocks comprising alkylating agent and metal salts, the metal salts are removed from the feedstock by an efficient combination of separations processes. The processes may take place in one or more stages, each stage taking place in one or more vessels. ... Exxonmobil Chemical Patents Inc

01/11/18 / #20180009976

Vulcanized polymer blends

A heterogeneous vulcanized polymer blend comprising a continuous phase comprising a thermoplastic polypropylene having a crystallinity of at least 30% and a dispersed phase comprising particles of an elastomeric copolymer dispersed in the continuous phase and having an average particle size of less than 5 micron. The elastomeric copolymer has a crystallinity of less than 20% and is at least partially cross-linked such that no more than about 80 wt % of the elastomeric copolymer is extractable in cyclohexane at 23° c.. ... Exxonmobil Chemical Patents Inc

01/11/18 / #20180009135

Process for forming thermoplastic vulcanizates and thermoplastic vulcanizates made therefrom

Provided are methods for producing a thermoplastic vulcanizate and thermoplastic vulcanizates provided therein. The method includes introducing vulcanizable rubber, thermoplastic resin, a masterbatch of a propylene-based elastomer and a cure accelerator for a phenolic resin curative to the reactor, and phenolic resin curative to a reactor and dynamically vulcanizing the rubber with the phenolic resin curative in the presence of the cure accelerator and the thermoplastic resin.. ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180002517

Polymer compositions with improved rheological properties

Provided herein are metallocene-catalyzed polymer compositions that exhibit advantageous rheological properties, at least some of which are consistent with long-chain branching, as well as polymerization processes suitable for forming such polymer compositions. The polymer compositions may have both lcb index measured at 125° c. ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180002516

Polymer compositions and processes for their production

Provided herein are polymerization processes and polymer compositions including reactor blends formed by such polymerization processes. The polymerization processes include copolymerization using two metallocene catalyst systems: the first catalyst system capable of producing polymers having 60% or more vinyl terminations, the second catalyst system capable of producing high molecular weight polymers, preferably incorporating at least some of the polymers produced by the first catalyst system into the high molecular weight polymers. ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180002352

Quinolinyldiamido transition metal complexes, production and use thereof

Quinolinyldiamido transition metal complexes are disclosed for use in alkene polymerization to produce multimodal polyolefins.. . ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180002253

Process for the recovering of paraxylene

Disclosed herein are processes for recovering paraxylene in which a first simulated moving bed adsorption unit is used to produce a paraxylene-rich extract stream that also contains a significant amount of the ethylbenzene and a paraxylene-depleted raffinate stream. Because a significant amount of the ethylbenzene is removed in the paraxylene-rich extract stream (at least enough to limit buildup in the isomerization loop), the paraxylene-depleted raffinate stream may be isomerized in the liquid phase. ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180002252

Processes for recovering paraxylene

Disclosed is a process for recovering paraxylene in which a first simulated moving bed adsorption unit is used to produce two extract streams—one rich in paraxylene and a paraxylene-rich extract stream that is lean in ethylbenzene and an ethylbenzene-rich extract stream that is lean in paraxylene- and a paraxylene-depleted raffinate stream. A significant amount of the ethylbenzene is removed in the ethylbenzene-rich extract stream (at least enough to limit buildup in the isomerization loop), so the paraxylene-depleted raffinate stream may be isomerized in the liquid phase. ... Exxonmobil Chemical Patents Inc

01/04/18 / #20180001604

Multilayer films and methods of making the same

Disclosed are multilayer films with high toughness performance, where the films have an elastic ethylene copolymer in the core layer.. . ... Exxonmobil Chemical Patents Inc

12/28/17 / #20170369688

Thermoformable propylene polymer blends

This invention relates to thermoformable blends of propylene polymer and a tackifying resin and thermoformed articles produced from said blends. The thermoformed articles typically have an advantageous combination of good optical properties, stiffness, and barrier properties. ... Exxonmobil Chemical Patents Inc

12/21/17 / #20170363605

Methods for characterizing branching distribution in polymers

New metrics are disclosed for characterizing polyethylene copolymers which can be computed from the cross-fractionation chromatography data of these polymers. These metrics are able to quantify the broad orthogonal composition distribution (bocd) character of the polymers, and they can be used to discriminate polymers with an enhanced bocd character from polymers that have the bocd character to a lesser extent or from polymers that have the conventional molecular weight distribution and/or branching distribution.. ... Exxonmobil Chemical Patents Inc

12/21/17 / #20170362421

Compositions comprising propylene-based elastomers and polyalphaolefins

Provided are compositions comprising a propylene-based elastomer and a polyalphaolefin. The compositions may be particularly useful in elastic film compositions, and especially useful as elastic film layers in nonwoven laminates.. ... Exxonmobil Chemical Patents Inc

12/21/17 / #20170362420

Heat-activated fabrics made from blends containing propylene-based polymers

The invention relates to an heat-activated fabric comprising a polymer blend of 70 to 100 wt % of a polymer blend component and 0 to 30 wt % of a propylene polymer, wherein the polymer blend component comprises a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin, wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend component has a mfr of greater than or equal to 20 g/10 min to less than 10,000 g/10 min; and wherein the propylene polymer has a mfr of greater than or equal to 20 g/10 min to less than 5,000 g/10 min.. . ... Exxonmobil Chemical Patents Inc

12/21/17 / #20170362350

Process for producing polymer compositions

Processes are provided which include copolymerization using one or both of a metallocene catalyst capable of producing high molecular weight polymers and a metallocene catalyst capable of producing polymers having 60% or more vinyl terminations. Polymerization processes include dual catalyst polymerization in a single polymerization zone comprising both metallocene catalysts. ... Exxonmobil Chemical Patents Inc

11/30/17 / #20170342249

Multilayer films and methods of making the same

Disclosed are multilayer films which can provide desired performance suited to stretch hood applications.. . ... Exxonmobil Chemical Patents Inc

11/30/17 / #20170342175

Metallocene catalyst compositions and polymerization process therewith

This invention relates homogeneous (solution) polymerization of propylene at higher temperatures (80° c. Or more) using bisindenyl metallocene catalyst compounds having long (at least 4 carbon atoms) linear alkyl groups substituted at the 2-position and substituted or unsubstituted aryl groups at the 4-position.. ... Exxonmobil Chemical Patents Inc

11/30/17 / #20170342005

Oxygenate synthesis and homologation

The invention relates to processes for oxygenate synthesis and homologation, to equipment and materials useful in such processes, and to the use of such oxygenate for producing olefin and polyolefin.. . ... Exxonmobil Chemical Patents Inc

11/30/17 / #20170341015

Reducing fouling in amine systems

The invention generally relates to processes for reducing fouling in amine systems and to equipment useful in such processes. Such amine systems are useful for removing one or more acidic gases such as co2 or h2s from olefin containing hydrocarbon streams. ... Exxonmobil Chemical Patents Inc

11/16/17 / #20170328873

Methods of determining molecular weight and comonomer characteristics of a copolymer in polymer blends

A method for deconvoluting the molecular weight characteristics of the copolymer or rubber in an impact copolymer (icp) comprising at least one copolymer or rubber and at least one homopolymer such as polypropylene, as well as a method of determining the comonomer characteristics of the rubber in an icp, the methods comprising in part eluting a solubilized icp through a gel permeation chromatographic (gpc) column to form an eluate comprising the rubber and/or polypropylene, measuring the infrared (ir) absorption of at least the primary monomer-derived unit stretch frequency and the comonomer-derived unit in elution volume slices to determine the amount of comonomer, measuring the concentration of icp using any detector, and determining the mass concentration, comonomer composition, and the total comonomer content of the icp through the appropriate mathematical transformations.. . ... Exxonmobil Chemical Patents Inc

11/09/17 / #20170320976

Tetrahydro-as-indacenyl catalyst composition, catalyst system, and processes for use thereof

This invention relates to a compound represented by the formula: tylamxn−2 wherein: a is a substituted or unsubstituted tetrahydro-as-indacenyl group bonded to m; l is substituted or unsubstituted monocyclic or polycyclic arenyl ligand or monocyclic or polycyclic heteroarenyl ligand bonded to m; m is a group 3, 4, 5, or 6 transition metal (preferably group 4); t is a bridging group bonded to l and a; y is 0 or 1, indicating the absence or presence of t; x is a leaving group, typically a univalent anionic ligand, or two xs are joined and bound to the metal atom to form a metallocycle ring, or two xs are joined to form a chelating ligand, a diene ligand, or an alkylidene; n is the oxidation state of m and is 3, 4, 5, or 6.. . ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170306136

Heterophasic copolymers and sequential polymerization

This invention relates to heterophasic copolymers of propylene and an alpha olefin comonomer having a high fill phase content (≧15%), and heterophasic polymerization processes using a single site catalyst system with a support having high average particle size (ps≧30 μm), high surface area (sa≧400 m2/g), low pore volume (pv≦2 ml/g), and a mean pore diameter range of 1≦pd≦20 nm.. . ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170306135

Improved thermoplastic polyolefin design for enhanced stiffness, toughness, and viscosity balance

Disclosed is a method of forming a thermoplastic polyolefin composition, and the tpo itself, comprising discrete α-olefin copolymer domains within a continuous phase of polypropylene comprising combining within the range from 8 wt % to 60 wt % of the α-olefin copolymer, by weight of the thermoplastic polyolefin, and within the range from 92 wt % to 40 wt % of the polypropylene by weight of the thermoplastic polyolefin, wherein the complex viscosity of the α-olefin copolymer (cvα-olefin) and polypropylene (cvpp) satisfy the formula 0.2≦cvα-olefin/cvpp≦5 when the cvs are measured at the same frequency and temperature.. . ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170305818

Xylene separation process

A process is described for separating paraxylene from a multicomponent fluid mixture of c8 aromatics. A mixture of c8 aromatics is fed to a simulated moving bed adsorptive apparatus having at least two sieve chambers and at least two rotary valves. ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170305812

Catalytic aromatization

The invention relates to catalytic aromatization, e.g., for the conversion of non-aromatic hydrocarbon to higher-value aromatic hydrocarbon, to catalysts useful for such aromatization, to methods for making such catalysts, and to systems and apparatus for carrying out aromatization in the presence of the catalyst.. . ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170305810

Production of aromatics from methanol and co-feeds

Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170305124

Polyolefin films

This disclosure relates to films particularly suitable for stretch hood applications. More particularly, this disclosure relates to multi-layer films particularly suitable for stretch hood applications comprising an inner layer that includes a blend of a propylene-based elastomer and a polyethylene having long-chain branching.. ... Exxonmobil Chemical Patents Inc

10/26/17 / #20170305058

Devices, systems, and processes for processing polymers

Embodiments of an invention disclosed herein relate to devices, processes, and systems for processing polymers.. . ... Exxonmobil Chemical Patents Inc

10/12/17 / #20170292013

Propylene-based polymer additives for improved tire tread performance

A tire tread composition is disclosed. The tire tread composition includes components, by weight of the composition, within the range from: 5 to 75 wt % of a diene elastomer; 0 to 40 wt % of processing oil; 20 to 80 wt % of filler; a curative agent; and 5 to 30 wt % of a propylene-ethylene-diene terpolymer containing from 2 wt % to 40 wt % of ethylene and/or c4-c20 α-olefins derived units, from 0.5 to 10 wt % of diene derived units, and having a heat of fusion, as determined by dsc, of from 0 j/g to 80 j/g.. ... Exxonmobil Chemical Patents Inc

10/05/17 / #20170283713

Burner, furnace, and steam cracking processes using the same

A burner sub-system, a furnace comprising the same, a fuel combustion process and steam cracking process carried out in the furnace. The burner sub-system comprises a barrier wall segment between the burner tip and the flue-gas recirculation (“fgr”) duct, effectively blocking direct gas flow between the burner tip and the fgr duct opening, but without encircling the whole burner tip. ... Exxonmobil Chemical Patents Inc

10/05/17 / #20170283603

Polyolefin adhesive compositions for elastic applications

The present invention is related to an article comprising a substrate, having at least one propylene terpolymer comprising propylene derived units, one or more dienes, and an alpha-olefin content of less than about 35 wt % of the propylene terpolymer; and an adhesive composition, having about 20 to about 80 wt % of a polymer blend comprising a first propylene-based polymer, that is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin, and a second propylene-based polymer, that is a homopolymer of propylene or a copolymer of propylene and ethylene or a c4 to c10 alpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; and wherein the adhesive composition is applied to the substrate at temperature of less than about 150° c.. . ... Exxonmobil Chemical Patents Inc

10/05/17 / #20170283600

Low crystalline polymer compositions prepared in a dual reactor

Provided herein is a polymer comprising from about 65 wt % to about 90 wt % based on the total weight of the blend of an ethylene α-olefin elastomer having either no crystallinity or crystallinity derived from ethylene, having greater than about 75 wt % units derived from ethylene; and from about 10 wt % to about 35 wt % based on the total weight of the blend of a propylene polymer having about 40 wt % or more units derived from propylene, including isotactically arranged propylene derived sequences; wherein the ethylene α-olefin elastomer and the propylene polymer are prepared in separate reactors arranged in parallel configuration.. . ... Exxonmobil Chemical Patents Inc

09/28/17 / #20170275443

Thermoplastic polyolefin containing amorphous ethylene elastomer

Disclosed is a thermoplastic polyolefin composition useful in automotive components comprising at least a polypropylene having a melting point temperature (tm) of greater than 130° c. And a melt flow rate (230° c./2.16 kg) within the range from 10 g/10 min to 80 g/10 min; an amorphous ethylene-propylene copolymer comprising within the range from 40 wt % to 80 wt % ethylene derived units and having a melt flow rate (230° c./2.16 kg) within the range from 0.1 g/10 min to 20 g/10 min; and a propylene-based elastomer having within the range from 5 to 25 wt % ethylene derived units and having a tm of less than 110° c. ... Exxonmobil Chemical Patents Inc

09/28/17 / #20170275409

Comb-block high density polyethylenes and methods of making them

A process for preparing a polyethylene composition comprising contacting ethylene with a first salan catalyst precursor and an activator to form branched vinyl/vinylidene-terminated high density polyethylene having a number average molecular weight (mn) of at least 5,000 g/mole; and contacting the branched vinyl/vinylidene-terminated high density polyethylene with ethylene and a second metallocene catalyst precursor and an activator to form a comb-block hdpe. The polyethylene composition comprises a polyethylene backbone, and one or more branched high density polyethylene combs pendant to the backbone, the combs having an mn of at least 5,000 g/mole, where the polyethylene has a branching index (g′) of less than 0.9.. ... Exxonmobil Chemical Patents Inc

09/28/17 / #20170275226

Process for making cyclohexanone

Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and an s-containing component, comprising a step of removing at least a portion of the s-containing component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

09/28/17 / #20170275218

Aromatics production process

In a process for producing para-xylene, at least one feed comprising c6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a c7− aromatic hydrocarbon-containing stream, a c8 aromatic hydrocarbon-containing stream and a c9+ aromatic hydrocarbon-containing stream. At least part of the c8 aromatic hydrocarbon-containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the c8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. ... Exxonmobil Chemical Patents Inc

09/21/17 / #20170267794

Low comonomer propylene-based impact copolymers

A propylene-based impact copolymer having a high gloss and suitable for appliance components comprising a polypropylene homopolymer and within a range of from 6 wt % to 20 wt % of propylene copolymer based on the weight of the impact copolymer, wherein the copolymer comprises from 20 wt % to 44 wt % ethylene, and/or c4 to c10 α-olefin derived units and the remainder propylene-derived units based on the weight of the propylene copolymer, the impact copolymer having a melt flow rate (230° c./2.16 kg) within a range of from 10 g/10 min to 50 g/10 min.. . ... Exxonmobil Chemical Patents Inc

09/14/17 / #20170260378

Propylene-based elastomers for roofing compositions and methods for preparing the same

Provided herein are elastomer blends and membranes including a blend of a propylene-based elastomer a thermoplastic resin, a flame retardant, and an ultraviolet stabilizer.. . ... Exxonmobil Chemical Patents Inc

09/07/17 / #20170253724

Plasticizers production and use

This disclosure relates to blends of aromatic ester plasticizers. The plasticizer blends include a first group of one or more methyl biphenyl carboxylic acid esters of c7 to c13 alcohol and a second group of methyl biphenyl carboxylic acid esters of c4 to c6 alcohol. ... Exxonmobil Chemical Patents Inc

09/07/17 / #20170253723

Plasticizers production and use

This disclosure relates to aromatic ester plasticizers, including methyl biphenyl carboxylic acid esters of alcohols having an average carbon number ranging from 9.0 to 9.4 and a degree of branching of 3.0 or less, preferably 2.2 or less, to mixtures of such plasticizers, to compositions comprising the plasticizers and to thermoplastic polymer, such as polyvinylchloride, that contains the plasticizers.. . ... Exxonmobil Chemical Patents Inc

09/07/17 / #20170253676

Catalyst systems and methods of making and using the same

Olefin polymerization catalyst systems and methods for making and using the same are provided.. . ... Exxonmobil Chemical Patents Inc

08/31/17 / #20170247522

Propylene-based elastomers and propylene polymers useful for foam applications

Provided herein are compositions including a blend of a propylene-based elastomer, a propylene polymer, and a foaming agent.. . ... Exxonmobil Chemical Patents Inc

08/31/17 / #20170247301

Paraxylene separation process

A process for producing paraxylene is provided. The process includes separating a first mixture of c8 aromatic hydrocarbons in a simulated moving bed apparatus using a desorbent to produce (i) an extract comprising ≧50.0 wt % of the paraxylene in the first mixture; (ii) a desorbent-rich raffinate comprising ≧75 wt % of the desorbent withdrawn, and (iii) an desorbent-lean raffinate comprising ≦25 wt % of the desorbent withdrawn in the desorbent-rich and desorbent-lean raffinates. ... Exxonmobil Chemical Patents Inc

08/31/17 / #20170247300

Hydrocarbon conversion

This disclosure relates to the conversion of methane to higher molecular weight (c5+) hydrocarbon, including aromatic hydrocarbon, to materials and equipment useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading.. . ... Exxonmobil Chemical Patents Inc

08/31/17 / #20170247299

Hydrocarbon conversion

This invention relates to the conversion of substantially-saturated hydrocarbon to higher-value hydrocarbon products such as aromatics and/or oligomers, to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading.. . ... Exxonmobil Chemical Patents Inc

08/24/17 / #20170240725

Self-assembled propylene-based compositions and methods of production thereof

Disclosed are self-assembled propylene-based bi-layer compositions having a skin layer comprising a propylene-based elastomer-toughened composition and a core layer comprising a propylene-based fiber-reinforced composition, wherein the propylene-based elastomer-toughened composition and propylene-based fiber-reinforced composition self-assemble upon mixing into the skin layer and the core layer. Processes for producing these self-assembled propylene-based compositions are also disclosed.. ... Exxonmobil Chemical Patents Inc

08/24/17 / #20170239591

Adsorptive separation of multi-component fluid mixtures

An adsorptive separation process and system are used for separation of multi-component fluid mixtures. The separation process and system may include establishing, in a fluid flow within the system, a concentration distribution of the fluid mixture components based upon the components' relative affinities to the adsorbent. ... Exxonmobil Chemical Patents Inc

08/17/17 / #20170233566

Bimodal polypropylene compositions

A bimodal polypropylene composition of at least a high molecular weight, predominantly isotactic, narrow molecular weight distribution polypropylene having a heat of fusion of 70 to 100 j/g, and a low molecular weight, predominantly isotactic, narrow molecular weight distribution polypropylene having a heat of fusion of 70 to 100 j/g, wherein the high molecular weight polymer and low molecular weight polymer are sufficiently miscible to impart a single glass transition temperature and a single melting point to the polymer blend, has improved processibility and stiffness compared to a single narrow molecular weight distribution isotactic polypropylene of the average of the components.. . ... Exxonmobil Chemical Patents Inc

08/17/17 / #20170233516

Cyclic olefin copolymers and methods of making them

A process for making a branched cyclic olefin copolymer (bcoc), and the bcoc therefrom, comprising combining at a temperature within a range from 60° c. To 140° c. ... Exxonmobil Chemical Patents Inc

08/17/17 / #20170233513

Low ethylene amorphous propylene-ethylene-diene terpolymer compositions

A propylene-ethylene-diene terpolymer and method of making such comprising from 2% to 25% wt % by weight of ethylene, from 98% to 75% wt % by weight propylene and from 1% to 21% wt % by weight of a diene, wherein the terpolymer has a crystallinity of less than 3%, a melt flow rate (mfr) of less than 10 and a tg by dsc of from −2° c. To −25° c. ... Exxonmobil Chemical Patents Inc

08/17/17 / #20170233507

Polyethylene polymers, films made therefrom, and methods of making the same

Disclosed are polyethylene polymers with good melt strength that can provide enhanced properties for compositions including such polyethylene polymers and films made therefrom.. . ... Exxonmobil Chemical Patents Inc

08/17/17 / #20170233323

Process for making cyclohexanone

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

08/10/17 / #20170226238

Process for preparing a halogenated elastomer with improved mooney viscosity stability

This invention relates to a method of preparing a brominated elastomer having a stabilized mooney viscosity. The method includes polymerizing isomonoolefins and at least one polymerizable unit to obtain an elastomer/polymer; brominating the elastomer/polymer to form a brominated elastomer effluent; neutralizing the brominated elastomer effluent to form a neutralized effluent; volatizing off the hydrocarbon solvent; and recovering a brominated elastomer. ... Exxonmobil Chemical Patents Inc

08/03/17 / #20170218190

Dynamically vulcanized alloys

This invention relates to the preparation of a dynamically vulcanized alloy comprising at least one elastomer, at least one thermoplastic resin, a nanofiller, and an ethylene copolymer resin.. . ... Exxonmobil Chemical Patents Inc

08/03/17 / #20170218102

Ethylene-propylene copolymeric compositions with long methylene sequence lengths

This invention relates to methods to prepare and compositions pertaining to branched ethylene-propylene copolymers that include at least 50% ethylene content by weight as determined by ftir; a g′vis of less than 0.95; a mw of 125,000 to 300,000; a methylene sequence length of 6 or greater as determined by 13c nmr, wherein the percentage of sequences of the length of 6 or greater is more than 32%; and can have greater than 50% vinyl chain end functionality.. . ... Exxonmobil Chemical Patents Inc

07/20/17 / #20170204207

Separation vessels for use in polymerization processes and methods for cleaning same

Both a system and method for cleaning a low pressure separation vessel of a high pressure polyethylene polymerization plant are provided. The system includes a polytetrafluoroethylene lining that covers the interior surfaces of the vessel, and a cover mounting assembly including an annular clamp for detachably mounting a cover over the vessel. ... Exxonmobil Chemical Patents Inc

07/20/17 / #20170204037

Process for making cyclohexanone

Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and a catalyst poison component, comprising a step of removing at least a portion of the catalyst poison component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

07/20/17 / #20170204035

Process and system for making cyclohexanone

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

07/20/17 / #20170204034

Process and system for making cyclohexanone

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

07/20/17 / #20170204033

Process and system for making cyclohexanone

Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.. . ... Exxonmobil Chemical Patents Inc

07/13/17 / #20170198124

Polyethylene compositions

A polyethylene composition including the product of the combination of at least one copolymer made from units derived from at least 85 wt % ethylene and a c3 to c10 α-olefin and from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer is provided.. . ... Exxonmobil Chemical Patents Inc








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