Real Time Touch



new TOP 200 Companies filing patents this week

new Companies with the Most Patent Filings (2010+)




Real Time Touch

Univation Technologies Llc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "U" | Univation Technologies Llc-related inventors


Polyethylene copolymers having a particular comonomer distribution

Novel polyethylene copolymers having a relatively high comonomer partitioning tendency are disclosed as are methods for their preparation. The comonomer partitioning tendency is the tendency for a copolymer to have comonomer in the higher molecular weight chains. ... Univation Technologies Llc

Bridged bi-aromatic ligands and olefin polymerization catalysts prepared therefrom

Disclosed are novel bridged bi-aromatic phenol ligands and transition metal catalyst compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds, and polymerization processes utilizing the transition metal compounds for the production of olefin polymers.. ... Univation Technologies Llc

Methods for preparing bridged bi-aromatic ligands

New methods for preparing bridged bi-aromatic ligands are disclosed. The methods employ aryl coupling of unprotected phenols. ... Univation Technologies Llc

Supported catalyst compositions having improved flow properties and preparation thereof

Supported catalyst compositions, useful in olefin polymerization, and having improved flow properties are disclosed. The catalyst compositions may be characterized by low macro pore volume and high bulk density. ... Univation Technologies Llc

Methods for operating a polymerization reactor

Methods for olefin polymerization are described. The methods include a) forming a first polyolefin under a first set of polymerization conditions in the presence of a first catalyst composition and a first concentration of at least a first continuity additive composition, the first polyolefin composition having a target density, 1, and a target flow index, fi1; and b) forming a second polyolefin composition under a second set of polymerization conditions in the presence of a second catalyst composition and a second concentration of a second continuity additive composition, the second polyolefin composition having a target density, 2, and a target flow index, fi2; wherein the process is essentially free of providing a polymerization neutralizing composition between steps a) and b).. ... Univation Technologies Llc

Producing polyolefin products

Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bpdi) map. ... Univation Technologies Llc

Methods and systems for olefin polymerization

Methods and systems for olefin polymerization are provided. The method for olefin polymerization can include flowing a catalyst through an injection nozzle and into a fluidized bed disposed within a reactor. ... Univation Technologies Llc

Bridged bi-aromatic ligands and transition metal compounds prepared therefrom

Disclosed are novel bridged bi-aromatic phenol ligands and transition metal compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds.. ... Univation Technologies Llc

Catalysts for control of long chain branching

Catalyst systems and methods for making and using the same are disclosed. A catalyst composition is provided that includes a catalyst compound supported to form a supported catalyst system, the catalyst compound including: where each of r1, r2, r3, r4, r5, r6, r7 and x are as discussed herein.. ... Univation Technologies Llc

Closed reactor transitions between metallocene catalysts

A method for transitioning a gas phase polymerization reactor between metallocene catalysts is provided. The method comprises first reducing the superficial gas velocity and increasing the height of the fluidized bed within the reactor prior to stopping a feed comprising a first metallocene catalyst. ... Univation Technologies Llc

Methods for preparing bridged bi-aromatic ligands

New methods of preparing bridged bi-aromatic ligands are disclosed. The methods employ direct di-ortho-lithiation of aromatic rings of bridged protected bi-aromatic diphenols. ... Univation Technologies Llc

Univation Technologies, Llc

. . ... Univation Technologies Llc

Spray dried catalyst compositions, methods for preparation and use in olefin polymerization processes

Methods of preparing supported catalyst compositions using spray drying are disclosed. The supported catalyst compositions find use in the polymerization of olefins.. ... Univation Technologies Llc

Methods for controlling polymer chain scission

Methods for extrusion of polyolefins (110) that utilize melt temperature to control molecular weight and also reduce gels. Disclosed herein is an example method for controlling polymer chain scission in an extrusion system (100), comprising: melting a polyolefin resin (110) in extruder (102) at a first melt temperature to form a first melt (112); passing the first melt (112) through a screen pack (106); forming the first melt 112) into a first polyolefin product (116, 118); melting additional polyolefin resin (110) of the same grade in the extruder (102) at a second melt temperature to form a second melt (112), wherein the second melt temperature differs from the first melt temperature by 5° c. ... Univation Technologies Llc

01/04/18 / #20180001533

Methods for gel reduction in polyolefins

Methods for extrusion of polyolefins (112 ) that control specific energy input to the extruder (102 ) for gel reduction. Disclosed herein is an example method for forming plastic products (120, 208 ) with reduced gels, comprising: melting a polyolefin resin (112 ) in extruder (102 ) to form a melt; adjusting specific energy input in the extruder (102 ) to reduce gels in the melt; and forming the melt into a polyolefin product (120, 208 ). ... Univation Technologies Llc

12/21/17 / #20170362353

Methods of controlling polyolefin melt index while increasing catalyst productivity

The catalyst productivity of a polyolefin catalyst in the methods disclosed herein may be increased by increasing the concentration of an induced condensing agent (ica) in the reactor system. The effect the increased ica concentration may have on a melt index may be counteracted, if necessary, in various ways.. ... Univation Technologies Llc

12/14/17 / #20170355791

Methods of changing polyolefin production rate with the composition of the induced condensing agents

Polyolefin polymerization performed by contacting in a reactor an olefin monomer and optionally a comonomer with a catalyst system in the presence of induced condensing agents (ica) and optionally hydrogen. The ica may include two or more ica components where the composition of the ica (i.e., the concentration of each ica component) may affect the polyolefin production rate. ... Univation Technologies Llc

12/14/17 / #20170355790

Methods of changing polyolefin production conditions to mitigate small gels in a polyolefin article

The number of small gels that form in polyolefin thin films may be reduced by altering certain production parameters of the polyolefin. In some instances, the number of small gels may be influenced by the melt index of the polyolefin. ... Univation Technologies Llc

11/16/17 / #20170327609

Chromium-based catalyst compositions for olefin polymerization

Modified chromium-based catalyst compositions for olefin polymerization are disclosed. The modifiers prevent or reduce catalyst particle aggregation providing improved catalyst particle dispersion and consistent flow index response of the compositions in olefin polymerization.. ... Univation Technologies Llc

11/09/17 / #20170320034

Systems and methods for measuring particle accumulation on reactor surfaces

Systems and methods for monitoring a particle/fluid mixture are provided. The method can include flowing a mixture comprising charged particles and a fluid past a particle accumulation probe. ... Univation Technologies Llc

10/12/17 / #20170291973

Catalyst activators, methods of preparation and use in polymerization processes

Catalyst activators and methods for their preparation and their use in processes for polymerizing olefms are described. In particular, catalyst activators derived from aluminum alkyls and their use with metallocene type catalyst systems and/or conventional-type transition metal catalyst systems are described.. ... Univation Technologies Llc

09/28/17 / #20170274356

Polyolefin production with chromium-based catalysts

A method including contacting a chromium-based catalyst with a reducing agent in a solvent to lower an oxidation state of at least some chromium in the chromium-based catalyst to give a reduced chromium-based catalyst, drying the reduced chromium-based catalyst at a temperature, and adjusting the temperature to affect the flow index response of the reduced chromium-based catalyst.. . ... Univation Technologies Llc

09/14/17 / #20170260306

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. ... Univation Technologies Llc

09/14/17 / #20170259236

Methods of controlling polyolefin melt index

The use of induced condensing agent (ica) in fluidized bed gas phase reactor systems enables higher production rates but can affect the resulting polyolefins melt index. The effect the increased ica concentration may have on a melt index may be counteracted, if necessary, by altering the concentration of olefin monomer within the reactor system.. ... Univation Technologies Llc

09/14/17 / #20170259235

Systems and methods using an insert assembly with stacked gas flow gaps

Disclosed are insert assemblies with stacked gas flow gaps to add and/or remove gases from a solid/gas mixture travelling through a barrier. An example system may comprise a barrier and an insert assembly in the barrier defining an annulus between the insert assembly and the barrier, wherein the insert assembly comprises stacked flow gaps configured for addition and/or removal of gas from a solid/gas mixture flowing in the annulus.. ... Univation Technologies Llc

08/31/17 / #20170247482

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. ... Univation Technologies Llc

08/24/17 / #20170240674

Continuity compositions and methods of making and using the same

Continuity compositions are provided as are methods of their preparation. The compositions comprise metal carboxylate salts and fatty amines and find advantageous use in olefin polymerization processes.. ... Univation Technologies Llc

08/17/17 / #20170233506

Fluorinated catalyst supports and catalyst systems

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. ... Univation Technologies Llc

07/20/17 / #20170204208

Producing polyolefin products

Catalyst systems and methods for making and using the same are described herein. A catalyst system can include at least three catalysts. ... Univation Technologies Llc

06/29/17 / #20170183434

Catalyst composition, methods of preparation and use in a polymerization process

Polymerization catalyst compositions are provided as are methods of their preparation. The compositions comprise fatty amines and find advantageous use in olefin polymerization processes. ... Univation Technologies Llc

06/29/17 / #20170183433

Producing polyolefin products

Catalyst systems and methods for making and using the same. A method of methylating a catalyst composition while substantially normalizing the entiomeric distribution is provided. ... Univation Technologies Llc

05/18/17 / #20170137551

Methods of modifying the melt flow ratio and/or swell of polyethylene resins

Methods of making polyethylene resins are provided. More particularly methods of modifying the melt flow ratio and swell characteristics of polyethylene resins are provided.. ... Univation Technologies Llc

05/11/17 / #20170129977

Polyethylene resins

Polyethylene resins having variable swell and excellent physical properties are provided. The polyethylene resins may be advantageously prepared using a single catalyst system.. ... Univation Technologies Llc

03/23/17 / #20170081432

Preparation of polyolefin

Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. ... Univation Technologies Llc

02/02/17 / #20170029542

Methods for making catalyst compositions and polymer products produced therefrom

Methods for making olefin polymerization catalysts and methods for making polymers using the catalysts are provided. The method for making the catalyst can include combining one or more supports with one or more magnesium-containing compounds under reaction conditions to form a first reacted product. ... Univation Technologies Llc

01/26/17 / #20170022310

Continuity compositions and methods of making and using the same

Continuity compositions are provided as are methods of their preparation. The compositions comprise at least one metal carboxylate salt which is modified with at least one molten fatty amine. ... Univation Technologies Llc

01/26/17 / #20170022309

Producing polyolefin products

A method of polymerizing olefins is disclosed. The method comprises contacting ethylene and at least one co-monomer with a catalyst system to produce a polyolefin polymer that is multimodal. ... Univation Technologies Llc

01/19/17 / #20170015768

Process control for long chain branching control in polyethylene production

Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free ziegler-natta catalyst and an alkyl aluminum co-catalyst. ... Univation Technologies Llc

01/12/17 / #20170008983

Producing polyolefin products

Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bpdi) map. ... Univation Technologies Llc








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



###

This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Univation Technologies Llc in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Univation Technologies Llc with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

###