Low molecular weight copolymers and covulcanizates produced ther

Details Low molecular weight copolymers and covulcanizates produced ther Low molecular weight copolymers and covulcanizates produced ther

1986-10-24

1989-05-09

Ziegler, Jacob

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

Synthetic resins

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

525338, 525339, C08F 804

Patent

active

048291285

ABSTRACT:
Statistical copolymers of from 85 to 52% by weight of a conjugated diene, from 15 to 48% by weight of at least one unsaturated nitrile and from 0 to 10% by weight of further monomers, copolymerizable with diene and nitrile, which have a molecular weight M.sub.n of from 0.5 to 30 kg/mol and a degree of hydrogenation of the double bonds of greater than 80%, give nitrile rubbers, which are mixed and colvulcanized with these copolymers, an increased ozone resistance.

REFERENCES:
patent: 3629172 (1971-12-01), Jones
patent: 3700637 (1972-10-01), Finch
patent: 4581417 (1986-04-01), Buding

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