The Goodyear & Tire Rubber Company

Claude Charles Jacoby

Paul Harry Sandstrom

Nihat Ali Isitman

Georges Marcel Victor Thielen

Jean Joseph Victor Collette

Luisa Fernanda Munoz Mejia

Sebastien Willy Fontaine

Marc Weydert

Frank Schmitz

Manuela Pompei

Frida Nzulu

Armand Rene Gabriel Leconte

Pascale De Briey-Terlinden

Filomeno Gennaro Corvasce

Anne-France Gabrielle Jeanne-Marie Cambron

Alexander Ossipov

Pascal Patrick Steiner

Stephane Houchard

Olivier Francis Bindner

Aaron Patrick Murray

Carlo Kanz

Thomas Charles Pierre Roland

Thomas Franklin Spilker

Christian Kaes

Malik Djelloul-Mazouz

Laurent Rene Nicolas Haas

Raymond Marie Joseph Ghislain Houba

Xavier Jean-Francois Beot

Jérôme Joel Daniel Delville

Patrick Paul Deblaize

Stephan Franz Westermann

Sebastien Morin

Sébastien Morin

Vincent Van Goor

Virginie Schwinn

Sabine Chantal Gabriel

Fabien Ocampo

Jean-Paul Piret

Olivier Françis Bindner

This invention discloses a tire tread comprising: (a) a first tread cap layer comprising a first rubber composition; and (b) a second tread cap layer arranged radially inside of the first tread cap layer comprising a second rubber composition; wherein at 0&#xb0; C. the rebound resilience of the first rubber composition is within a range of 10% to 25%, the rebound resilience of the second rubber composition is within a range of 15% to 35% and is at least 5% lower than that of the second rubber composition; and wherein at 100&#xb0; C. the rebound resilience of the first rubber composition is within a range of 45% to 65%, the rebound resilience of the second rubber composition is within a range of 60% to 75% and is at least 3% higher than that of the first rubber composition.

Tire having a multilayer tread cap

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr),

Pneumatic tire

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), 100 phr of a diene based elastomer having a glass transition temperature less than &#x2212;50&#xb0; C.; from 30 to 65 phr of a fatty acid monoester of formula 1 where Ris selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups; Ris C11 to C21 alkyl or C11 to C21 alkenyl; less than 10 phr of a petroleum-derived oil; and from 50 to 130 phr of silica.

The present invention is directed to a pneumatic tire having a tread comprising a radially outer cap layer and radially inner cap layer underlying the outer cap layer; the outer cap layer comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), from about 50 to about 90 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from &#x2212;65&#xb0; C. to &#x2212;55&#xb0; C. and functionalized with an alkoxysilane group and at least one functional group selected from the group consisting of primary amines and thiols; from about 50 to about 10 phr of polybutadiene having a cis 1,4 content greater than 95 percent and a Tg ranging from &#x2212;80 to &#x2212;110&#xb0; C.; from 30 to 80 phr of a combination of a resin having a Tg of at least 30&#xb0; C. and an oil, wherein the weight ratio of resin to oil is greater than 1; and the inner cap layer comprising a vulcanizable rubber composition comprising: from about 50 to about 90 phr of a solution polymerized styrene-butadiene rubber functionalized with an alkoxysilane group and at least one functional group selected from the group consisting of primary amines and thiols; from about 50 to about 10 phr of polybutadiene having a cis 1,4 content greater than 95 percent and a Tg ranging from &#x2212;80 to &#x2212;110&#xb0; C.; and from 30 to 50 phr of an oil, and essentially free of a resin.

Tire

A tread cap composition, in accordance with the principles of the invention, may be a composition resulting from a combination of components including: a conjugated diene-based elastomer; a reinforcing filler; an oil softener; a silane coupling agent; and an ultra high molecular weight polyethylene ('UHMWPE').

Tread cap composition

The plasticity of a tread composition may advantageously be increased by incorporating, for example, a relatively small amount of an ultra high molecular weight polyethylene ('UHMWPE'). A tread cap composition, in accordance with the principles of the invention, may be a composition resulting from the combination of components including: a sulfur-vulcanizable elastomer containing olefinic unsaturation; a reinforcing filler; a mineral oil softener; a silane coupling agent; and an ultra high molecular weight polyethylene ('UHMWPE').

Method of increasing plasticity of tread composition

Tire tread

Tire with a component made of a rubber composition comprised of a rubber having pendant hydroxyl groups and a rubber containing a nitrile moiety

Growing community of inventors

Wasserbillig, Luxembourg

Claude Charles Jacoby