Curing systems for compositions containing halogenated copolymer

Details Curing systems for compositions containing halogenated copolymer Curing systems for compositions containing halogenated copolymer

1995-04-04

1996-04-30

Henderson, Christopher

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

Synthetic resins

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

525236, 5253333, 5253335, C08F21206, C08C 1920

Patent

active

055126383

ABSTRACT:
The present invention provides for sulfur curable compositions containing a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin, e.g., isobutylene and a para-alkylstyrene, e.g., para-methylstyrene, and further containing a polyunsaturated fatty acid glyceride having an iodine value in excess of 100, e.g. tung oil. The composition may comprise a mixture of the halogenated copolymer and at least one other unsaturated elastomer. In-situ reaction between the halogenated copolymer and the fatty acid glyceride during rubber compounding imparts unsaturation to the halogenated copolymer which permits facile vulcanization and covulcanization using conventional sulfur curatives.

REFERENCES:
patent: 5063268 (1991-11-01), Young
patent: 5162445 (1992-11-01), Powers
patent: 5252649 (1993-10-01), Hausmann
Chem Abst, 112, 141054p.

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