Patent ID: 11945952
Assignee: TOTAL MARKETING SERVICES
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 15:
16. Rubber composition for tire applications comprising:
rubber polymers comprising at least optionally functionalized styrene-butadiene rubber (SBR) and at least one rubber selected from polybutadiene rubber (BR), natural rubber (NR), polyisoprene rubber (IR) and mixtures thereof, and
at least one ester derived from renewable sources resulting from the esterification of trimer and/or dimer acids having the formula A-(COOH)q, with q being 2 or 3 and A being identical or different, acyclic, cyclic or polycyclic, saturated or unsaturated, linear or branched hydrocarbon groups having from 3 to 69 carbon atoms, with acyclic or cyclic, saturated or unsaturated, linear or branched alcohols,
said rubber polymers comprising:
from 20 to 90% by weight of styrene-butadiene rubber(s) optionally functionalized and
from 10 to 80% by weight of at least one rubber selected from polybutadiene rubber (BR), natural rubber (NR), polyisoprene rubber (IR) and mixtures thereof,
based on the total weight of the rubber polymers,
wherein the at least one ester derived from renewable sources comprise from 50 to 100 wt %, based on the total weight of the at least one ester, of at least one trimer ester resulting from the esterification of trimer acids having the formula A-(COOH)3, with A being identical or different, acyclic, cyclic or polycyclic, saturated or unsaturated, linear or branched hydrocarbon group having from 3 to 69 carbon atoms, with acyclic or cyclic, saturated or unsaturated, linear or branched alcohols.