Patent ID: 6710116
Filing Date: 2004-03-23
Classification: B60C,C08K,C08L

Abstract:
A colorable or transparent elastomeric composition comprising:a) from 10 to 100 parts, per hundred parts rubber, of a halogenated copolymer of a C4 to C7 isoolefin and a para-alkylstyrene; b) from 10 to 90 parts, per hundred parts rubber, of a compound selected from the group consisting of polybutadiene, high cis-polybutadiene, natural rubber, polyisoprene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, isoprene-butadiene rubber, ethylene-propylene diene rubber, and blends thereof, c) from 30 to 80 parts of a non-black filler; and d) a polybutene processing aid; wherein the colorable or transparent elastomeric composition has a ChromaMeter L value of greater than 55.