Bridgestone Corporation

Bridgestone Americas Tire Operations, LLC

Firestone Polymers, LLC

Jsr Corporation

Firestone Fibers & Textiles Company, LLC

Bridgestone Corpotation

Terrence Eugene Hogan

William L Hergenrother

David F Lawson

Christine M Rademacher

James Herman Pawlow

Ashley S Hilton

Xiaorong Wang

David M Roggeman

Chenchy Jeffrey Lin

Christopher G Robertson

Victor J Foltz

Fuminori Ota

Steven Luo

Yuan-Yong Yan

Kevin Michael McCauley

Walter Tomaszewski

Michael W Hayes

James E Hall

Amy M Randall

Waruna C B Kiridena

Yoichi Ozawa

Ken Tanaka

Eiju Suzuki

Chen-Chy Lin

Toshihiro Uchiyama

Jessica C Kurasch

Kentaro Kayashima

Maria Tallman

Zengquan Qin

Joshua P Abell

Junko Matsushita

Yaohong Chen

Georg G A Böhm

H James Harwood

Shunji Araki

Ryuji Nakagawa

Laura S Kocsis

Kenji Nakatani

Alberto Scurati

Atsushi Fukushima

William J Corsaut

James J Kuhel, Jr

Chenchy J Lin

Jeffrey A Cicerchi

Gabrielle L McIntyre

Maria E Uhall

William M Cole

Takuo Sone

Benjamin C Galizio

Naruhiko Mashita

Xiao-Dong Pan

Hiroyuki Fudemoto

Wei Zhao

Mindaugas Rackaitis

Dennis R Brumbaugh

James A Krom

Mark N DeDecker

Tadashi Utsunomiya

James D Ulmer

Zhong-Ren Chen

Takaomi Matsumoto

Pat Sadhukhan

Peyman Pakdel

Arif Omer Gozen

Kouji Masaki

Mario DeTrano

Zbyslaw R Owczarczyk

Christine L Morehart

Ryan J Hue

Yuichiro Wakana

Steven R Reynolds

Eiji Suzuki

Takayoki Yako

J P Kennedy

Victor F Foltz

Karen Maglione

Kevin Mccauley

Paul N Hamilton

Waruna Kiridena

Kevin J Bishop

Ryota Tamate

Waruna Chethiya Bandara Kiridena

Kevin M McCAULEY

Gabrielle L Nuzzi

Iii James J Kuhel

Kevin M Mccauley

Zbyslaw Owczarczyk

Embodiments are directed to anionic rubber polymerization processes conducted in a non-aqueous dispersion utilizing conjugated diene and vinyl aromatic monomers and a dispersing agent formed in-situ during the polymerization process.

Anionic dispersion polymerization process to make random copolymer rubber

Disclosed herein are a process for preparing a modified high-cis polybutadiene polymer, a modified high-cis polybutadiene polymer, and tire components made using the modified high-cis polybutadiene polymer. The processes make use of a functionalizing compound of formula (I) to prepare the modified high-cis polybutadiene from a quantity of 1,3-butadiene monomer using a specified catalyst system.

Modified high-Cis polybutadiene polymer, related methods and rubber compositions

Disclosed herein area process for preparing a modified high-cis polybutadiene polymer, a modified high-cis polybutadiene polymer, and tires having a component made using the modified high-cis polybutadiene polymer. The processes make use of a functionalizing compound of formula (I) to prepare the modified high-cis polybutadiene from a quantity of 1,3-butadiene monomer using a specified catalyst system.

Modified high-cis polybutadiene polymer, related methods and tire components

Embodiments of the present disclosure are directed to polyolefin grafted polydiene polymers, wherein the polyolefin grafted polydiene polymers comprises a polydiene having a polydiene polymer backbone, a polyolefin, and at least one sulfur containing functionalizing agent which grafts the polyolefin onto at least one non-terminal position on the polydiene polymer backbone.

Polyolefin grafted polydiene polymers, and methods of making and using same

Embodiments of the present disclosure are directed to methods of preparing an alkoxysilane functionalized polymer, the method comprising: introducing an anionic polymerization initiator to a reactor comprising a reactive mixture including conjugated diolefin monomer and solvent to form a living polymer via anionic polymerization; introducing alkoxysilane to the reactor to mix with the living polymer to form an alkoxysilane functionalized polymer; adding at least one aliphatic carboxylic acid having at least 10 carbons to the alkoxysilane functionalized polymer; and removing solvent from the alkoxysilane functionalized polymer.

Methods of making polymers with reduced tack, and rubber compositions incorporating these polymers

Metallated aminosilane compounds for use as functional initiators in anionic polymerizations and processes for producing an aminosilane-functionalized polymer using the metallated aminosilane compounds to initiate anionic polymerization of at least one type of anionically polymerizable monomer. Preferred use of the metallated aminosilane compounds results in rubber compositions for use in tires comprising an aminosilane functionalized polymer.

Processes for preparing aminosilane functionalized polymers

Methods are described for the preparation of polymers using a lanthanide-based coordination catalyst and arresting polymerization using a reduced amount of a Lewis base while retaining the reactivity of the polymer chain ends toward functionalization agents. The Lewis base is a meso-enriched oxolanyl Lewis base. The resulting functionalized polymer has a higher level of purity and can be used in products such as tires.

Methods for producing polydienes

A vulcanizable composition for preparing bead filler, the composition comprising a vulcanized rubber; and a vinyl aromatic-containing block copolymer compound, where the vinyl aromatic-containing copolymer is defined by the formula IId-Vo-D-V'-&#x3c9;&#x2003;&#x2003;IIwhere each V is independently a polyvinyl aromatic block, D is a polydiene block, w is a hydrogen atom, a functional group, or a polymeric segment or block, and where d is a polydiene block, and where the overall vinyl content of the block copolymer is greater than 65%.

Pneumatic tire with improved bead filler

A functionalized polyamide is prepared by reacting a thio acid with an amide monomer or a mixture of a diamine and a dicarboxylic acid. In the reaction, the amide monomer is preferably a lactam compound, the thio acid has a formula of HOOC-A-SH wherein A represents an alkylene group containing from 1 to 10 carbon atoms, the diamine is an aliphatic diamine and the dicarboxylic acid is a aliphatic dicarboxylic acid. The functionalized polyamide can be vulcanized directly with rubber, which results in the use of less dip for adhering the tire cord to the rubber.

Functionalized polyamides and methods of preparing the same

Aminosilane initiators and functionalized polymers prepared therefrom

An oxolanyl compound-containing composition comprising specified amounts of the meso-isomer of one or more of the oxolanyl compounds of specified structure is provided. Also provided are methods for the use of such compositions as vinyl content modifiers in polymerization processes.

Vinyl modifier composition and processes for utilizing such composition

A vulcanizate prepared by a method including introducing an elastomer, a filler, and a mercapto-functional siloxane to form a masterbatch, where the mercapto-functional siloxane is selected from the group consisting of poly(dimethylsiloxane-co-mercaptopropylmethylsiloxane) and dimethoxy mercapto propyl terminated siloxanes, introducing a curative to the masterbatch to form a vulcanizable composition, and subjecting the vulcanizable composition to curing conditions.

Vulcanizates and tire components prepared from compositions including mercapto-functional siloxanes

A process for preparing a copolymer including one or more mer units deriving from the polymerization of 1,1-bis(hydrocarbylthio)hydrocarbyl-1-ene monomer, the process comprising anionically polymerizing conjugated diene monomer, 1,1-bis(hydrocarbylthio)hydrocarbyl-1-ene monomer, and optionally monomer copolymerizable therewith.

Polydienes and diene copolymers using 1,1-bis(hydrocarbylthio)hydrocarbyl-1-ene compounds

A method for producing a functionalized polymer, the method comprising the steps of polymerizing conjugated diene monomer, optionally together with a copolymerizable monomer, within a solvent to produce a polymerization mixture including a polymer having a reactive terminus, coupling a portion of the polymer having a reactive terminus with a hydrocarbyloxysiloxane to produce a polymerization mixture including polymer coupled with the hydrocarbyloxysiloxane and residual polymer having a reactive terminues, reacting the residual polymer having a reactive terminus with a functionalizing agent having at least one hydrocarbyloxy functionality to produce a polymerization mixture including a functionalized polymer and the polymer coupled with the hydrocarbyloxysiloxane, and desolventizing the polymerization mixture including the functionalized polymer and the polymer coupled with the hydrocarbyloxysiloxane.

Method for producing polymeric compositions including functionalized polymers

Growing community of inventors

Akron, OH, United States of America

Terrence Eugene Hogan