Colorable elastomeric composition

Details Colorable elastomeric composition Colorable elastomeric composition

2005-09-06

2005-09-06

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S232000, C525S236000, C525S237000, C525S331900, C525S474000

Reexamination Certificate

active

06939921

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 C4to C7isoolefin and a p-methylstyrene, silica and a high cis-polybutadiene rubber.

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