Rubber mixtures which contain SBR rubber gels
AssigneeBayer Aktiengesellschaft
InventorsWerner Obrecht, Thomas Scholl, Ulrich Eisele, Winfried Jeske, Peter Wendling, Adolf Schmidt
Life of this patent
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Abstract
Rubber mixtures prepared from at least one styrene/butadiene rubber gel and at least one rubber which contains double bonds and optionally further fillers and rubber auxiliary substances are in particular suitable for the preparation of vulcanizates having unusually high damping at temperatures of from -20 to +20.degree. C. as well as unusually low damping at temperatures of from 40 to 80.degree. C. The rubber mixtures may therefore be used, for example, to manufacture vehicle tires which grip in the wet and have low rolling resistance.
Claims9
Rubber mixtures prepared from at least one styrene/butadiene rubber gel (A) having a swelling index in toluene of from 1 to 15 and a particle size of from 5 to 1000 nm, and at least one rubber which contains double bonds (B), wherein the content of rubber gel (A) is from 1 to 100 parts by weight, related to 100 parts of rubber (B), and optionally fillers and rubber auxiliary substances.
A tire tread having improved wet rolling grip, prepared from a rubber mixture comprising at least one styrene/butadiene rubber gel (A) having a swelling index in toluene of from 1 to 15 and a particle size of from 5 to 1000 nm, and at least one rubber which contains double bonds (B), wherein the content of rubber gel (A) is from 1 to 100 parts by weight, related to 100 parts of rubber (B), and optionally fillers and rubber auxiliary substances.
Dependencies are inferred from the claim text.