Firestone Polymers, LLC

Bridgestone Corporation

The Firestone Tire & Rubber Company

Heritage Research Group

Bridgestone/firestone, Inc.

Firestone Polymers, LLC & Heritage Research Group

Daniel F Graves

William L Hergenrother

Christine M Rademacher

Peter W Boerner

Timothy P Reece

John W Fieldhouse

Herbert L Wissel

Mark H Wollum

James E Hall

James Herman Pawlow

Herb Wissel

William M Cole

Mark L Stayer

Hideo Takeichi

David M Roggeman

Mark N DeDecker

Hans-Wilhelm Engels

Mitch Barry

David F Lawson

Thomas A Antkowiak

Georg G Bohm

Christopher G Robertson

James Oziomek

Arthur E Oberster

Tai C Cheng

David J Dougherty

Sunil B Sarkar

Steven L Fenske

David P Tate

Steven Luo

Jason T Poulton

Chenchy Jeffrey Lin

Yasuo Horikawa

John R Schreffler

Georg G A Böhm

James D Ulmer

Walter R Hausch

Dennis L Snyder

William J Shuttleworth

Brent Iceman

William J Kern

Peter Boerner

Herbert Wissel

James Hall

David Roggeman

A method for the preparation of block copolymers including at least one high vinyl segment, the method comprising (i) charging into a reactor a diene monomer in a hydrocarbon solvent, a catalytically effective amount of anionic initiator, and an oligomeric oxolanyl propane, whereby the reactor is optionally cooled; (ii) allowing the diene monomer to polymerize at a peak polymerization temperature of at least about 18&#xb0; C. and less than about 60&#xb0; C. to form a first block where the vinyl content is at least about 50 percent by weight; (iii) after step (ii), charging into the reactor a vinyl aromatic monomer, whereby the reactor is optionally heated to a temperature up to about 60&#xb0; C.; (iv) allowing the vinyl aromatic monomer to polymerize to form a second block; and (v) optionally charging into the reactor a quenching agent.

Block copolymers including high vinyl segments

A process for producing a styrene-butadiene diblock copolymer-containing blend that is not an agglomeration, that involves mixing a styrene-butadiene multiblock thermoplastic elastomer solution with a styrene-butadiene diblock copolymer solution. Blends comprising a styrene-butadiene diblock copolymer and a styrene-butadiene multiblock thermoplastic elastomer, which blends are not an agglomeration.

Styrene/butadiene diblock copolymer-containing blends that are not an agglomeration and a process for preparation

A modified-asphalt composition prepared by introducing a diene end-capped block copolymer with a molten asphalt composition, where the block copolymer is defined by the formula&#x3b1;-(D-V-d)where each D is independently a polydiene block, each V is independently a vinyl aromatic block, each d is a polydiene end cap, &#x3b1; is a coupling moiety, and x is an integer from 2 to 10.

Polymer-modified asphalt compositions

A method for forming a rubber-modified polymeric composition includes polymerizing vinyl aromatic monomer within a mixture including the vinyl aromatic monomer and an interpolymer having at least one block of polyisoprene, at lest one block of polystyrene, and at lest one block of polybutadiene to thereby form the rubber-modified polymeric composition, where the interpolymer includes an internal block of polyisoprene.

Method of preparing rubber comprising polymeric compositions and isoprene comprising interpolymers

A modified-asphalt composition prepared by introducing a diene end-capped block copolymer with a molten asphalt composition.

Elastomeric interpolymers comprising at least two, or more, cyclic olefin monomers that are prepared by ring opening metathesis polymerization, and that are characterized by having no crystallinity, a glass transition temperature (T) of less than &#x2212;80&#xb0; C., and a number average molecular weight (M) of at least 40 kg/mole, and functionalized products thereof. A ring opening metathesis polymerization process for producing the elastomeric interpolymers having no crystallinity. Uses of the elastomeric interpolymers in applications such as rubber compounds, tires, and the like. Cores of golf balls that are prepared by using metathesis polymerization produced elastomeric interpolymers having 0 to about 30% crystallinity.

Elastomers, process for preparation, and uses thereof

Adducts of an unsaturated metathesis polymer or interpolymer and an unsaturated diacid anhydride. A process for producing adducts of an unsaturated metathesis polymer or interpolymer and unsaturated diacid anhydride.

Adducts of metathesis polymers and preparation thereof

A modified asphalt binder composition prepared by combining asphalt binder, phosphorus pentasulfide, and less than 2.5 parts by weight unsaturated polymer, per 100 parts by weight asphalt binder, to thereby produce a modified asphalt binder composition characterized by an elongation recovery at 25&#xb0; C., as determined according to AASHTO T301, of greater than 75%.

Modified asphalt binders and asphalt paving compositions

A modified asphalt binder composition prepared by combining asphalt binder, phosphorus pentasulfide, and less than 2.5 parts by weight unsaturated polymer, per 100 parts by weight asphalt binder, to thereby produce a modified asphalt binder composition characterized by an elongation recovery at 25&#xb0; C., as determined according to AASHTO T301, of greater than 75%, where the phosphorus pentasulfide includes a blend of PSand PS.

A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and an organothionating agent to form a modified asphalt composition.

Compositions and polydiene production processes involving catalyst systems comprising at least one lanthanide-containing compound, at least one alkylating agent, at least one halogen source, and at least one N,N-dihydrocarbylhydroxylamine.

Process and catalyst system for polydiene production

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Canal Fulton, OH, United States of America

Daniel F Graves