Colorable elastomeric composition
AssigneeExxonMobil Chemical Patents Inc.
InventorsWalter H. Waddell, Robert R. Poulter
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Abstract
Transparent and colorable elastomeric compositions are provided. The transparent elastomeric compositions can be covulcanized with rubbers such as polybutadiene, polyisoprene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, isoprene-butadiene rubber, or natural rubber and polybutene processing oil. The colorable rubber compositions have sufficient properties to function as a reinforcing member in a shoe sole or automobile tire. Preferably, both the transparent and colorable elastomeric compositions include at least one copolymer of a C4 to C7 isoolefin and a p-methylstyrene, silica and a high cis-polybutadiene rubber.
Claims27
A reinforced, colorable elastomeric composition having utility as a tire sidewall or shoe sole, consisting essentially of at least one random copolymer of a C4 to C7 isoolefin and p-methylstyrene derived units, reinforced with from 30 to 80 phr of at least one non-black filler;
- a cure system, and polybutene processing oil having a number average molecular weight of at least 400.
A reinforced, colorable elastomeric composition having utility as a tire sidewall or shoe sole, consisting essentially of at least one random copolymer of a C4 to C7 isoolefin and p-methylstyrene derived units reinforced with from 30 to 80 phr of at least one non-black filler;
- a cure system, and polybutene processing oil having a viscosity of from 10 to 6000 cSt at 100° C.
Dependencies are inferred from the claim text.