Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Exxonmobil Engineering & Technology Company

Other

Michelin Recherche Et Technique S.a.

Advanced Elastomer Systems, L.p.

Exxonmobil Chemicals Patents, Inc.

Exxonmobile Chemical Patents Inc.

The Yokohama Rubber Co., Ltd.

Societe Detechnologie Michelin

Anthony Jay Dias

Edward John Blok

Weiqing Weng

Caiguo Gong

Beverly Jean Poole

Andy Haishung Tsou

Hsien-Chang Wang

Ranjan Tripathy

Patrick Brant

Gabor Kiss

Kenneth W Powers

John F Walzer, Jr

Alan Anthony Galuska

Ian C Stewart

Michael Brendan Rodgers

Eugene Ronald Uhl

Sudhin Datta

John Robert Hagadorn

Mun Fu Tse

Stephen B Roscoe

David Y Chung

Yong Yang

Prasadarao Meka

David Yen-Lung Chung

James Peter Stokes

Jingwen Zhang

Natalie Ann Merrill

Jo Ann M Canich

Periagaram Srinivasan Ravishankar

Liehpao O Farng

Sunny Jacob

David John Lohse

Jean M Frechet

Maria Dolores Ellul

Jay L Reimers

George Rodriguez

Jean-Roch H Schauder

Yuichi Hara

Bruce Alan Harrington

Timothy Daniel Shaffer

Robert Norman Webb

Jean M J Frechet

Sabet Abdou-Sabet

Shun Sato

Kriss Randall Karp

Jason A Mann

Molly Westermann Johnston

Joseph A Olkusz

Carmen Neagu

Paul T Q Nguyen

Robert J Claassen, Ii

Yuan-Ju Chen

Kenneth O McElrath

Thomas R Barbee

James Richard Ayers

T-c Chung

Paul Tu Quang Nguyen

Rick M Davis

Bruce Allan Harrington

Ramanan Krishnamoorti

Mun-Fu Tse

Abdul M Jangda

Walter Harvey Waddell

Jean M Tancrede

Sarah J Mattler

Donald Sheley Tracey

Carlos R Lopez-Barron

Yifeng Hong

Ilan Duvdevani

Michael Charles Bulawa

Shawn W Mowry

Rui Zhao

Brian Bergman

Myron Bernard Kurtzman

Glenn Edward Jones

Rodney May

Thomas C Hodge

Yuan-Ju (Ray) Chen

Fred T Morrar

Ira David Finkelstein

Man-Fu Tse

Hsian-Chang Wang

Erick E Wurzinger

Martin E Levine

Tu N Pham

David J Freas

Anna A Michels

Rick Dowell Davis

Beverly J Poole

Paul T Qu Nguyen

Paul TQ Nguyen

Howard Kerstetter Iii Randal

Ramanan University Of Houston Krishnamoorti

Caiguo c/o Em Chem Services Gong

Robert J Claassen Ii

Eugene R Uhi

Kris Randall Karp

Robert J Ii Claassen

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 5 to about 40 phr of styrene/butadiene copolymer; about 60 to about 100 phr of natural rubber or polyisoprene; a curative agent; an antioxidant; about 1 to about 20 phr carbon black; about 5 to about 40 phr plasticizing agent; about 40 to about 80 phr silica; about 1 to about 20 phr silane coupling agent and about 5 to about 30 phr of a polymer selected from the group consisting of ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly(isobutylene-co-para-methylstyrene-co-isoprene) terpolymer. The polymer based on ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly(isobutylene-co-para-methylstyrene-co-isoprene) terpolymer may be functionalized.

Functionalized polymers tread additive to improve tire performance for immiscible all-season tread

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 70 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 30 to 70 phr of natural rubber or polyisoprene; about 20 to 50 phr of a processing oil; a curative agent; an antioxidant; about 50 to about 80 phr filler; a silane coupling agent; and about 5 to about 30 phr of a polymer selected from the group consisting of ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly(isobutylene-co-para-methylstyrene-co-isoprene) terpolymer. The polymer based on ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly(isobutylene-co-para-methylstyrene-co-isoprene) terpolymer may be functionalized.

Functionalized polymers tread additive for improved winter tire performance

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 20 to about 40 phr of a polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 70 phr styrene/butadiene copolymer; about 5 to about 30 phr natural rubber or polyisoprene; a curative agent; an antioxidant; about 1 to about 20 phr carbon black; about 1 to about 30 phr plasticizing oil; about 40 to about 80 phr silica; about 1 to about 15 phr silane coupling agent and about 5 to about 30 phr of a polymer selected from the group consisting of an ethylene-propylene-diene terpolymer, butyl rubber, poly(isobutylene-co-para-methylstyrene) and poly(isobutylene-co-para-methylstyrene-co-isoprene) terpolymer.

Functionalized polymers tread additive to improve all-season tire performance

Elastomeric compositions comprising propylene-ethylene-diene terpolymer based polyolefin additives useful in tire tread compositions. The elastomeric compositions comprise 100 phr (parts by weight per hundred parts of total elastomer) diene elastomers; about 0 to about 80 phr of processing oil; 0 to about 80 phr of a hydrocarbon resin; about 60 to about 140 phr of filler; a curative agent; and about 5 to about 30 phr of a silane functionalized propylene-ethylene-diene terpolymer. The silane functionalized propylene-ethylene-diene terpolymer comprises from about 2 wt. % to about 40 wt. % of ethylene and/or C-Cα-olefins derived units, from 0.5 to 10 wt % of diene derived units, and a silane coupling agent. The present elastomeric compositions are useful as tire tread compositions for improved tire performance.

Propylene ethylene diene terpolymer polyolefin additives for improved tire tread performance

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 70 to about 90 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 5 to 20 phr of a processing oil; about 5 to about 20 of sunflower oil; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer containing from about 0.2 wt % to about 20 wt % ethylidene norbornene and/or vinyl norbornene and about 10 wt % to about 30 wt % of ethylene and/or C-Cα-olefins derived units.

Propylene-based polymer additives for improved tire tread performance

Provided herein are isobutylene-based polymer compositions comprising functionalized isobutylene-based polymer with olefinic side chain substituents, and a sulfur donor and/or accelerator cure system. The functionalized polymer is produced via nucleophilic substitution reaction in solution. The present functionalized isobutylene-based polymer compositions together with various accelerators and sulfur donors can form thermosets useful for pharmaceutical and tire applications without the use of zinc or a zinc oxide activator.

Isobutylene-based polymers with olefinic side chain substituents and curable compositions containing the same

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 0 to about 25 phr of poly butadiene having a cis-1,4 linkage content of at least 95%; about 75 to 100 phr of a styrene/butadiene copolymer; about 10 to about 30 phr of a processing oil; about 50 to about 70 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer.

Provided herein are thioacetate isobutylene-based polymer compositions comprising thioalkylated functionalized polymer, and a sulfur donor and/or accelerator cure system. The thioalkylated functionalized polymer is produced via nucleophilic substitution reaction in solution. The present thioacetate functionalized isobutylene-based polymer compositions together with various accelerators and sulfur donors can form thermosets useful for pharmaceutical and tire applications without the use of zinc or a zinc oxide activator.

Thioacetate functionalized isobutylene-based polymers and curable compositions containing the same

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 30 to about 50 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 40 to about 70 phr of styrene/butadiene copolymer; about 0 to about 20 phr of natural rubber or polyisoprene; about 0 to about 30 phr of a processing oil; about 10 to about 30 phr of a hydrocarbon resin; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a butyl copolymer rubber containing about 85 to about 99.5 mol % C-Cisoolefin(s) and from about 0.5 to about 15 mol % C-Cconjugated dienes.

Butyl rubber additives for improved tire tread performance

Methods of post-polymerization modification of a polymer are provided herein. The present methods comprise the step of reacting a polymer with at least one nucleophile in a nucleophilic substitution reaction performed without a solvent to produce a functionalized polymer. The nucleophile can be selected from the group consisting of thioacetate, phenoxide, alkoxide, carboxylate, thiolate, thiocarboxylate, dithiocarboxylate, thiourea, thiocarbamate, dithiocarbamate, xanthate, thiocyanate. Nucleophilic substitution reaction can be performed in the presence of a phase transfer catalyst. Nucleophilic substitution reaction can also be performed via a two-step in-situ reactive mixing process with the initial formation of the polymer-amine ionomer (polymer-NRBr) which catalyzes the subsequent nucleophilic substitution with a second nucleophile to form a bi-functional polymer.

Solvent-free process for functionalizing isobutylene-based polymers

A process for the synthesis of a granular polymer, the process comprising (a) providing an active polymerization mixture that includes polymer, monomer, catalyst and optional solvent; (b) introducing a hydroxy-containing diaryl acetyl compound to the active polymerization mixture to thereby provide an inactive polymer mixture; (c) separating the polymer solution into a first stream and a second stream, where the first stream includes the polymer and the hydroxy-containing diaryl acetyl compound, and the second stream includes the monomer and the optional solvent; and (d) fabricating granules from the first stream.

Process for producing polymers

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.

Silane-functionalized hydrocarbon polymer modifiers for elastomeric compositions

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 C-C&#x3b1;-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.

This disclosure relates to syndiotactic polymers containing units derived from propylene and units derived from Cto Calpha olefins. The polymers can be prepared is slurry or solution polymerization processes using a zirconium-containing metallocene catalyst system. The polymers have a melt flow rate as determined by ASTM D-1238 (230&#xb0; C., 2.16 kg) of from about 0.1 to about 20 g/10 min. The syndiotactic polymers are useful as viscosity index improvers.

Syndiotactic propylene polymers and lubricating oils comprising the same

This invention relates to a dicyclopentadiene (DCPD)-based resin functionalized with groups capable of reacting with silica or carbon black for use in high performance tires and a preferred method of preparing the functionalized resin comprising ruthenium-catalyzed ring-opening cross metathesis. The functionalized resin may comprise the reaction product obtained by contacting a polymer comprising units derived from (DCPD) and a vinyl monomer or vinylene monomer in the presence of a metathesis catalyst, wherein the vinyl monomer or vinylene monomer comprises at least one of the following functional groups: a silyl group, a siloxy group, or an alkoxysilyl group. This invention further relates to a tire tread composition comprising the functionalized resin and which exhibits enhanced durability, traction, handling, and extractability properties.

Functionalized resins for high performance tires

Growing community of inventors

Houston, TX, United States of America

Anthony Jay Dias