Elastomeric composition for tire treads

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524496, 524296, C08K 304

Patent

active

053627938

ABSTRACT:
An elasomeric mix for pneumatic tire treads to enhance driving behavior including road holding ability on wet surfaces, abrasion resistance and low rolling resistance. The inventive elastomeric mix on E"/E' ratio dynamic moduli value equal to or greater than 0.3 at 0.degree. C. and equal to or less than 0.16 at 70.degree. C. The mix is based upon natural rubber and lampblack comprising, for 100 parts of elastomer, from 5 to 20 parts by weight of a synthetic polymer selected from the group consisting polychloroprene, chlorinated butyl rubber and brominated butyl rubber.

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