Exxonmobil Chemical Patents Inc.

Univation Technologies, LLC

Exxonmobil Research and Engineering Company

Exxon Chemical Patents, Inc.

Toray Battery Separator Film Co., Ltd.

Toray Industries, Inc.

University of Iowa Research Foundation

Donna Jean Crowther

Patrick Brant

Hong Cheng

Man Kit Ng

Jacqueline A Lovell

Matthew William Holtcamp

Glen Barry Brons

John Robert Hagadorn

Clarence E Chase

Ching-Tai Lue

Andrew G Narvaez, Jr

Bernard J Folie

Peijun Jiang

John F Walzer, Jr

Andy Haishung Tsou

Rainer Kolb

George Rodriguez

David T Ferrughelli

George Alan Vaughan

David Michael Fiscus

Emmanuel Ulysse

Koichi Kono

Phillip Thomas Matsunaga

Rinaldo Soria Schiffino

Charles James Ruff

Takeshi Ishihara

Satoshi Miyaoka

Timothy Andrew Barckholtz

Mohsen Shahmirzadi Yeganeh

Moses Olukayode Jejelowo

Joseph C Floyd

Edward A Lemon

Richard Allen Fisher

Ching Tai Lue

ManKit Ng

Sudhin Datta

Pradeep P Shirodkar

Laughlin G McCullough

Richard B Pannell

C Jeff Harlan

Wen Li

Timothy Marlow Boller

Bruce Alan Harrington

Shuji Luo

Haiqing Peng

Renuka N Ganesh

Hua Zhou

Jeanette M Diop

Rahul Ravindra Kulkarni

Geoffrey Marshall Keiser

Jackie Lovell

Abhimanyu Onkar Patil

John Francis Szul

Charles C Cozewith

Liehpao O Farng

Howard W Turner

Jo Ann Canich

Yong Yang

Victor DeFlorio

Gregory G Hlatky

Charles Stanley Speed

Carlos R Lopez-Barron

Kazuhiro Yamada

Howard William Turner

Bernard Jean Folie

Kevin Mallory

Gabor Kiss

Matthew S Bedoya

Gregory S Day

Satish Bodige

Jianya Cheng

Antonios K Doufas

Zerong Lin

Kevin Bruce Stavens

Subramaniam Kuppuswamy

Arnold Lustiger

Catalina L Coker

Natalie Ann Merrill

Patrick C Chen

Alistair Duncan Westwood

John W Chu

Thomas T Sun

Suzzy C H Ho

Stanley J Katzen

Johannes Matthieu Soulages

Richard F Jordan

Tabassumul Haque

Steven Webster Levine

Peter W Jacobs

Jeanne Marie MacDonald

Wei Tang

Geoff Keiser

Elizabeth L Walker

Celestino M Perez, Jr

Caol P Huff

Kuangyao Brian Peng

Carlos U De Gracia

Md Safatul Islam

Hillary L Bradshaw

Kathryn L Peretti

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 R, R, R, R, R, R, Rand X are as discussed herein.

Catalysts for control of long chain branching

Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).

Polymerization processes

This invention relates to a process to polymerize olefins comprising contacting, in solution phase at a temperature of 60&#xb0; C. to 200&#xb0; C., ethylene, and at least one olefin comonomer with a catalyst system comprising a non-coordinating anion activator and a metallocene catalyst compound, preferably represented by the formula: and2) obtaining ethylene polymer having an Mw greater than 100,000 g/mol, preferably greater tha 400,000 g/mol.

Solution process to make ethylene copolymers

Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction: 

Metallocene-catalyzed polyalpha-olefins

A catalyst system including two or more metallocene catalysts and processes for using the same to produce polyolefin polymer compositions are provided. The polyolefin polymer compositions have a good balance of a melt index ratio and normalized melt strength.

Catalyst systems and processes for using the same

In at least one embodiment, a catalyst compound is represented by Formula (I): 

Sterically hindered metallocenes, synthesis and use

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 bond to the metal by dative bonds, catalyst systems comprising such and polymerization processes using such.

Catalyst compositions and use thereof

This invention relates to a supported catalyst system and process for use thereof. In particular, the catalyst system includes bridged hafnium metallocene compound, an unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.

Supported catalyst systems and processes for 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.

An atactic polypropylene comb-block polyolefin comprising two blocks including a polyolefin backbone and atactic polypropylene combs pendant to the backbone having a weight average molecular weight of at least 8000 g/mole and a crystallinity of less than 20%, where the atactic polypropylene comb-block polyolefin has comb number of at least 2. The atactic polypropylene comb-block polyolefin is made by contacting at a temperature within a range from 20 to 70&#xb0; C. propylene with a first metallocene precursor to form vinyl-terminated atactic polypropylene to form vinyl-terminated atactic polypropylene, then contacting at a temperature within a range from 40 to 150&#xb0; C. the vinyl-terminated atactic polypropylene with ethylene, propylene, or both and a second metallocene precursor to form the backbone.

Atactic polypropylene comb block polyolefins useful as modifiers in polyolefins and hydrocarbons

This disclosure relates to a composition for use as an additive for fuels and lubricants including a reductive amination product of a vinyl terminated macromonomer (VTM) based aldehyde. Optionally aldehyde is reacted with the amino compound under condensation conditions sufficient to give an imine intermediate, and the imine intermediate is reacted under hydrogenation conditions sufficient to give the composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde. A reductive amination method for making a composition for use as an additive for fuels and lubricants. The method includes reacting a VTM based aldehyde with an amino compound containing at least one &#x2014;NH&#x2014; group under condensation conditions sufficient to give an imine intermediate, and reacting the imine intermediate under hydrogenation conditions sufficient to give said composition. The aldehyde is formed by reacting a VTM under hydroformylation conditions sufficient to form the aldehyde.

Lubricant and fuel dispersants and methods of preparation thereof

Growing community of inventors

Seabrook, TX, United States of America

Donna Jean Crowther