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

Claim 16:
17. Process to plasticize a rubber composition comprising from 20 to 90% wt of optionally functionalized styrene-butadiene rubber(s) (SBR) and from 10 to 80% 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 composition, the process comprising adding into the rubber composition:
an ester derived from renewable sources comprising from 50 to 100 wt % of at least one trimer ester resulting from the esterification of trimer acids having the formula A-(COOH)3, with A being an 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,
wherein the rubber composition comprises from 5 to 80 PHR of the ester derived from renewable sources.