US 11,945,952 B2
Rubber composition comprising esters from renewable sources as plasticizers
Franco Cataldo, Rome (IT); Louis Plancq, Levallois-Perret (FR); Francine Genin, Houilles (FR); and Zubin Arora, Paris (FR)
Assigned to TOTAL MARKETING SERVICES, Puteaux (FR)
Appl. No. 17/414,120
Filed by TOTAL MARKETING SERVICES, Puteaux (FR)
PCT Filed Dec. 20, 2019, PCT No. PCT/EP2019/086741
§ 371(c)(1), (2) Date Jun. 15, 2021,
PCT Pub. No. WO2020/128007, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18306771 (EP), filed on Dec. 20, 2018.
Prior Publication US 2022/0033624 A1, Feb. 3, 2022
Int. Cl. C08L 19/00 (2006.01); B60C 1/00 (2006.01); C08F 136/08 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C08K 5/05 (2006.01); C08K 5/092 (2006.01); C08K 5/11 (2006.01); C08K 5/12 (2006.01); C08L 7/00 (2006.01); C08L 9/06 (2006.01)
CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08F 136/08 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 5/05 (2013.01); C08K 5/092 (2013.01); C08K 5/11 (2013.01); C08K 5/12 (2013.01); C08L 7/00 (2013.01); C08L 2205/025 (2013.01)] 19 Claims
 
1. 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 rubber composition comprises from 5 to 80 PHR of the ester derived from renewable sources.