Apollo Tyres Global R&d B.v.

Tharik Mohamed

Louis Reuvekamp

Anup Mondal

Vikram Singh

Hendrik Stevens

The present invention relates to a cross-linkable rubber composition, a cross-linked rubber composition obtained by cross-linking such a rubber composition, a method of preparing a tyre and a tyre. In a cross-linkable rubber composition the cross-linkable rubber composition comprises, per hundred parts by weight of rubber (phr): ≤50 phr of a first rubber, the first rubber being a solution polymerized styrene-butadiene rubber (SSBR) comprising an alkoxysilane group and a primary amino group; ≥20 phr of a second rubber; and a coupling agent, a filler, and a resin, wherein the rubber composition comprises ≥15 phr of a third rubber; and ≥10 phr of a fourth rubber; and wherein the composition comprises ≥1 phr to ≤20 phr of at least two coupling agents wherein one of the coupling agents is or comprises a mercapto based silane and wherein the ratio of the mercapto based silane to the second coupling agent is in a range of ≥2:1 to ≤10:1.

Rubber composition for tyres with low rolling resistance and good winter properties

The present invention relates to a cross-linkable rubber composition, the cross-linkable rubber composition comprising, based upon parts by weight per 100 parts by weight rubber (phr): ≥60 phr to ≤80 phr of a butadiene rubber, a syndiotactic 1,2-polybutadiene, coupling agent, a filler, and a resin, wherein the composition co?prises ≥10 phr to ≤20 phr of the sy?diotactic 1,2-polybutadiene, and wherein the composition comprises ≥1 phr to ≤20 phr of at least two coupling agents wherein one of the coupling agents is or comprises a mercapto based silane and wherein the ratio of the mercapto based silane to the second coupling agent is in the range of ≥2:1 to ≤:10:1.

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Enschede, Netherlands

Tharik Mohamed