RUBBER COMPOSITION AND PNEUMATIC TIRE
A vulcanizable rubber composition for use in a tread of a pneumatic tire is disclosed. The rubber composition comprises, based on 100 parts by weight of elastomer (phr), (A) from 80 to 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from -...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A vulcanizable rubber composition for use in a tread of a pneumatic tire is disclosed. The rubber composition comprises, based on 100 parts by weight of elastomer (phr),
(A) from 80 to 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from -85 °C to -50 °C;
(B) from 20 to 80 phr of a natural rubber;
(C) from 30 to 70 phr of a process oil; and
(E) from 70 to 150 phr of silica;
wherein the weight ratio of silica to the oil is less than 2. |
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