The Goodyear & Tire Rubber Company

Marc-André Robert Paulus

Claude Schweitzer

Carolin Anna Welter

Jean-Claude Knepper

Serge Guillaume Feltes

Philippe Schmit

Betul Buehler

Vaibhav Nawale

Cecilia Aguiar Da Silva

Marc Antoine Norbert Hédo

Stefano Picchiotti

Dawn Michelle Johnson

In a first aspect, the present invention is directed to a rubber composition comprising, based on 100 parts by weight of elastomer (phr), 70 phr to 95 phr of diene based elastomer, wherein said diene based elastomer comprises 25 phr to 60 phr of a first diene based elastomer having a glass transition temperature within a range of &#x2212;49&#xb0; C. to &#x2212;15&#xb0; C., and 10 phr to 45 phr of a second diene based elastomer having a glass transition temperature within a range of &#x2212;50&#xb0; C. to &#x2212;110&#xb0; C., 5 phr to 30 phr of one or more of natural rubber and synthetic polyisoprene rubber, 40 phr to 70 phr of silica, and 10 phr to 40 phr of at least one terpene resin having a weight average molecular weight (Mw) of at least 900 g/mol. In another aspect, the present invention is directed to tire comprising a tire tread with aforementioned rubber composition.

Rubber composition and a tire

In accordance with the invention, a ply coat rubber composition for a tire ply comprises from 60 phr to 90 phr of natural rubber, from 10 phr to 40 phr of synthetic polyisoprene, from 30 phr to 80 phr of pre-silanized and precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr of carbon black, up to 5 phr of resin, and up to 8 phr of oil. Moreover, the invention is directed to a tire comprising such a rubber composition.

Ply coat rubber composition and a tire comprising a ply coat rubber composition

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Wemperhardt, Luxembourg

Marc-André Robert Paulus