Patent ID: 6548578
Filing Date: 2003-04-15
Classification: C08K,C08L

Abstract:
A vulcanizable elastomer composition comprising:100 parts by weight of an elastomer; about 5 to about 80 parts by weight of reinforcing filler, per 100 parts of said elastomer, said filler including a starch/emulsion styrene butadiene copolymer; about 1 to about 6 parts by weight of an alkylalkoxysilane coupling agent, per 100 parts of said elastomer, said coupling agent having a moiety reactive with the hydroxyl groups of the starch/styrene butadiene copolymer and a second moiety reactive with said elastomer; about 40 to about 115 parts of an additional reinforcing filler, per 100 parts of said elastomer, wherein said additional filler is selected from the group consisting of carbon black, silica and mixtures thereof; and about 0.2 to about 5 parts of a curing agent, per 100 parts of said elastomer.