Low bromine isobutylene-co-4-bromomethylstyrene compositions for

Details Low bromine isobutylene-co-4-bromomethylstyrene compositions for Low bromine isobutylene-co-4-bromomethylstyrene compositions for

1996-08-01

1997-12-16

Teskin, Fred

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

Synthetic resins

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

525353, 525356, 524394, 524432, 524576, 524578, 428398, 138118, 215355, C08F 820, C08K 541

Patent

active

056986408

ABSTRACT:
Tire curing bladders are made from poly(isobutylene-co-4-bromomethylstyrene) with a benzylic bromine content of from 0.15 to 0.45 mole percent, vulcanized with a cure system of 1,6-hexamethylene-bis(sodium thiosulfate) and zinc oxide. The vulcanizate has low residual benzylic bromine content which leads to enhanced stability under severe duty applications, reduced hot tension set, and reduced adhesion or co-cure to halobutyl tire innerliners.

REFERENCES:
patent: 5013793 (1991-05-01), Wang et al.
patent: 5063268 (1991-11-01), Young
patent: 5162445 (1992-11-01), Powers et al.
patent: 5246778 (1993-09-01), Costemalle et al.
patent: 5512638 (1996-04-01), O'Donnell

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