FUNCTIONALIZED-ESBR WITH ACRYLATE FUNCTIONAL BASE GROUP

摘要

Various compounds with improved compound properties are disclosed. In one embodiment functionalized emulsion styrene butadiene rubbers (FE-SBR) are disclosed with the functional group of the FE-SBR utilizing a broad range of esters or acrylates. This FE-SBR is then combined effectively with silica based formulations to yield improved properties in rubber articles such as tires.

主权项

1. A rubber composition, based upon parts by weight per 100 parts by weight of elastomer (phr), comprising:
(A) an elastomer comprised of
(1) 60 to 90 PHR of a copolymer rubber that is the reaction product of:
(a) 10 to 99 weight percent of a conjugated diene monomer which contains from 4 to 8 carbon atoms;(b) 0 to 70 weight percent of a vinyl substituted aromatic monomer; and(c) 1 to 30 weight percent of the monomer of the following general formula I: wherein R1 represents an alkyl group containing from 2 to 12 carbon atoms; and(2) 10 to 40 PHR of at least one conjugated diene-based elastomer; and (B) particulate reinforcement comprised of:
(1) 0 to 70 PHR of carbon black; and(2) 20 to 100 PHR of silica; and (C) 1 to 10 PHR of silane based coupling agent.