The Goodyear & Tire Rubber Company

Teresa Diane Martter

Paul Harry Sandstrom

David Ray Hubbell

Aaron Patrick Murray

Lisa Marie Missik-Gaffney

Arthur Allen Goldstein

Adel Farhan Halasa

Wen-Liang Hsu

Bruce Raymond Hahn

Marc Weydert

Aaron Scott Puhala

George Frank Balogh

Martin Paul Cohen

Michael Stefan Skurich

George Jim Papakonstantopoulos

Warren James Busch

Michael Julian Crawford

Leonard James Reiter

Kenneth Allen Bates

Jennifer Lyn Ryba

Leandro Forciniti

Jin-Ping Zhou

Nihat Ali Isitman

Eric Engeldinger

Maurice Peter Catharina Jozef Klinkenberg

Karmena Izabela Anyfantaki

Anthony Joseph Ramic

Becky Gerette Rickman

David Ray Hubell

Yingying Jiang

The invention is directed to a pneumatic tire comprising a vulcanization rubber composition, the vulcanizable rubber composition comprising: from 30 to 90 phr of a first functionalized styrene-butadiene rubber having a glass transition temperature Tg1 ranging from −70 to −50° C.; from 10 to 50 phr of a second functionalized styrene-butadiene rubber having a glass transition temperature Tg2 ranging from −110 to −70° C.; wherein Tg2−Tg1 is at least 10° C.; from 0 to 40 phr of at least one additional elastomer; from 50 to 150 phr of silica; from 0 to 50 phr of a hydrocarbon resin; and from 10 to 50 phr of an oil.

Pneumatic tire

This invention relates to a rubber composition containing filler reinforcement comprised of precipitated silica with silica coupling agent therefore and conjugated diene-based elastomer which contains end-chain functionalization with multi-functional groups. The groups functionalizing the elastomer are multi-functional in the sense of containing one group reactive with at least one of said precipitated silica and silica coupling agent and another different group reactive with diene-based elastomers through sulfur cure of the rubber composition. A sulfur cured rubber composition containing said end-chain functionalization is provided. A tire is provided having a component comprised of said rubber composition. Representative of said tire component is a tire tread.

Silica reinforced rubber composition containing a multi-functional group functionalized elastomer and tire with tread

This invention discloses a process for the synthesis of a rubbery polymer by emulsion polymerization that comprised polymerizing (1) a conjugated diolefin monomer and (2) a functionalized monomer having the structural formula: wherein the Rgroups can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 8 carbon atoms, wherein Rrepresents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, wherein Rrepresents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, and wherein Rrepresents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, with the proviso that if Rrepresent an alkyl group then Rrepresents a hydrogen atom, and with the proviso that Rrepresents an alkyl group then Rrepresents a hydrogen atom, wherein said polymerization is conducted in an aqueous medium, and wherein said polymerization is initiated with a free radical initiator.

Functionalized rubbery polymers

A pneumatic radial tire has a chipper in place of a traditional apex, the chipper located between a carcass main portion and turnup portion. The chipper layer may be composed of a chopped carbon fiber and aramid composite reinforced elastomeric layer. The tire sidewalls have a radial height SH and a section width SW located within a range of 0.4 to 0.44 of the sidewall radial height SH measured from the bead core. The section width SW may further be located within a range of 0.1&#x2033; to 0.3&#x2033; inches from a radially outward end of the chipper layer in a radial direction. The tread may of a dual layer construction, having a radially inward first layer formed of a relatively low rolling resistance compound and a radially outward second layer formed of a compound containing silica.

A pneumatic radial tire having a circumferentially extending equatorial plane of the tire, the tire comprising a carcass, a tread radially outward of the carcass, the carcass comprising at least one carcass reinforcing ply, opposing bead portions, and opposing sidewalls, the carcass reinforcing ply having a main portion extending between the opposing bead portions and a pair of turnup portions, each turnup portion extending from one end of the main portion, each bead portion having a bead core, and a reinforcement cavity outward of each bead core, the cavity located between the main portion and one turnup portion of the at least one reinforcing ply, the tire characterized by:

Growing community of inventors

Akron, OH, United States of America

Teresa Diane Martter