Patent ID: 8481649
Filing Date: 2013-07-09
Classification: C08C,C08F,C08L

Abstract:
1. A coupled copolymer coupled by reacting a silane coupling agent with a copolymer, wherein the copolymer is polymerized by a conjugated diene monomer and a vinyl aromatics monomer, and the silane coupling agent has an alkenyl group and a alkoxy group, and has a chemical Formula (I) as follows: wherein: R R R q is one of “1” and “0”; when q=0, then k=j=0, 1≦n≦3, 0≦m≦2, m+n=3, and R when q=1, then k+j=3, R the coupled copolymer comprises a four-arm coupled copolymer in a range of 10-30 weight percent of the coupled copolymer.