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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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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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

Sterically hindered metallocenes, synthesis and use

where M is a group 4 metal. Each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 is independently hydrogen, or a linear or branched C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl or silylcarbyl. At least one of R1 and R3 is not hydrogen.... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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. The catalyst system may be used for preparing ultrahigh molecular weight polyolefins.... Exxonmobil Chemical Patents Inc

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

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

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

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

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... Exxonmobil Chemical Patents Inc

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

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

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

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

Transition metal complexes, production and use thereof

wherein M is a Group 4 metal; each of X1 and X2 is a univalent group, such as halogen or benzyl; each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, hydrogen, a substituted or unsubstituted C1-C40 hydrocarbyl radical, etc.; and R13 is... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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. The transalkylated cyclohexylbenzyl may be... Exxonmobil Chemical Patents Inc

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.;... Exxonmobil Chemical Patents Inc

Multilayer films and methods thereof

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

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

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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. The unsaturated PAO material can be used as intermediate material for making PAO materials having... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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... Exxonmobil Chemical Patents Inc

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

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

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,... Exxonmobil Chemical Patents Inc

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... 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... 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. The invention also relates to equipment and materials useful in such upgrading, to processes for carrying out such upgrading, and to... 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... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022689

Alkyl aromatic hydroalkylation for the production of plasticizers

wherein R1 is a saturated or unsaturated cyclic hydrocarbon optionally substituted with an alkyl and/or an OXO-ester, and R2 is a C4 to C14 hydrocarbyl, preferably the residue of a C4 to C14 OXO-alcohol. Also provided are processes for making the compounds and plasticized polymer compositions containing said compounds.... 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... Exxonmobil Chemical Patents Inc

01/25/18 / #20180022907

Bimodal polypropylene compositions and 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... 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. The aromatic product is... 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... 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... 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

01/18/18 / #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.;... 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... Exxonmobil Chemical Patents Inc

01/11/18 / #20180009729

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. The location of the feed to the apparatus is moved at set intervals. The rate of flow of feed to the apparatus... 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... 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

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... 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... 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 / #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... 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. of less than 5; and phase... 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. This invention further relates to a method of improving the processability of a propylene... 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... 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

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 / #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... Exxonmobil Chemical Patents Inc

12/14/17 / #20170355841

Multi-modal polymer blend, hot melt adhesive comprising same and use thereof

A multi-modal polymer blend of at least three fractions as determined by TREF is provided. The blend comprises a first propylene-based polymer, a second propylene-based polymer; and a third propylene-based polymer; wherein when subjected to TREF, the polymer blend exhibits: a first fraction that is soluble at −15° C. in... 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. The invention generally relates to minimizing residence time of... 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 / #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 / #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

Patent Packs
11/23/17 / #20170333873

Guard bed material, its making and use

The present disclosure relates to a material preferably used in a guard bed, and having an increased capacity to adsorb catalyst poisons, as measured by collidine update at 200° C. The material is made by a method in which it is treated by being dried with a drying gas, preferably,... 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... 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... Exxonmobil Chemical Patents Inc

11/02/17 / #20170313132

Expansible barrier film assemblies

A barrier layer assembly is useful as a barrier component in articles subjected to repeated deformations. The barrier layer assembly has a support layer and a film layer. The barrier layer assembly has a bi-directionally corrugated surface. The surface may be an external or internal surface and is defined by... Exxonmobil Chemical Patents Inc

11/02/17 / #20170313799

Organoaluminum activators on clays

This invention relates to organoaluminum activators, 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 an ion-exchange layered silicate, an organoaluminum activator, and a metallocene.... Exxonmobil Chemical Patents Inc

11/02/17 / #20170313825

Polycarbonate-polyolefin block copolymers and methods of making them

A polycarbonate-polyolefin block copolymer and a process to form a polycarbonate-polyolefin block copolymer by combining mono- or di-hydroxyaryl with vinyl/vinylidene terminated polyolefin to form a polyolefin hydroxyaryl moiety, and combining the polyolefin hydroxyaryl moiety with di-hydroxyaryl and di-substituted carbonyl monomers to form a polycarbonate-polyolefin block copolymer.... Exxonmobil Chemical Patents Inc

11/02/17 / #20170314171

Spunbond fabrics comprising propylene-based elastomer compositions and methods for making the same

A polymer composition for forming spunbond fabrics offers a unique combination of simplicity and processability, while allowing fabrics formed therefrom to exhibit suitable elasticity and/or tensile strength. The polymer composition includes an propylene-based elastomer component exhibiting a particular combination of MFR and comonomer content, so as to allow for improved... 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

10/26/17 / #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 / #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... 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 / #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. Each sieve chamber may be operated individually using the... 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... 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),... Exxonmobil Chemical Patents Inc

10/19/17 / #20170297976

Paraxylene separation process

The invention relates to a p-xylene separation process wherein at least a portion of ethylbenzene present in an aromatics-containing feed is removed prior to isomerization. Aspects of the invention provide a process for producing p-xylene. The process includes providing a first mixture comprising ≧5.0 wt. % of aromatic C8 isomers,... Exxonmobil Chemical Patents Inc

Patent Packs
10/19/17 / #20170298154

Polymerization using a stripping agent for devolatilization

This disclosure describes processes for producing polymer using non-polar and condensable stripping agents to remove volatile components, such as solvent and unreacted monomer, from the produced polymer. Systems for performing these processes are also disclosed.... 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... 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... 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... 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... 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... 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 / #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... 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... 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... 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 / #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

09/07/17 / #20170253701

Comb-star viscosity modifier and its compositions

Described herein is a comb-star poly(siloxane-polyolefin) comprising the reaction product of at least vinyl-terminated macromer and functional-poly(dialkylsiloxanes) comprising 2 or more functional groups, wherein the comb-star poly(siloxane-polyolefin) has the following features: a g′(vis avg) of less than 0.80; a comb number of 2 or 3 or 4 to 30 or... 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... 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. The disclosure further relates to... 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

08/31/17 / #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 / #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... 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

08/24/17 / #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. The concentration distribution could... Exxonmobil Chemical Patents Inc

08/24/17 / #20170240487

Process for making para-xylene

Disclosed is a process for making para-xylene from toluene and/or benzene comprising (i) converting toluene and/or benzene to a first product mixture comprising mixed xylenes, (ii) obtaining a xylene mixture from the first product mixture, (iii) separating para-xylene from the xylene mixture, and (iv) transalkylating meta-xylene and/or ortho-xylene with toluene... 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... Exxonmobil Chemical Patents Inc








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