Co-vulcanizable compositions of fluoroelastomers having improved

Details Co-vulcanizable compositions of fluoroelastomers having improved Co-vulcanizable compositions of fluoroelastomers having improved

1987-05-15

1989-05-16

Pertilla, Theodore E.

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

Synthetic resins

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

525193, 525194, C08L 2712

Patent

active

048310832

ABSTRACT:
Co-vulcanizable compositions comprising (A) 55-85% by weight of a fluoroelastomeric copolymer of vinylidene fluoride with perfluoropropene and possibly tetrafluoroethylene; (B) 45-15% by weight of a copolymer of tetrafluoroethylene and propylene; (C) 0.7-2.5 parts, per 100 parts of the (A)+(B) blend, of a bisphenolic compound; (D) 0.3-1.5 parts, per 100 parts of the (A)+(B) blend, of a quaternary ammonium, phosphonium or aminophosphonium organic compound; (E) 0.4-5 parts, per 100 parts of the (A)+(B) blend, of an organic peroxide; (F) 1-5% by weight, as referred to (A)+(B), of a peroxidic cross-linking coagent.

REFERENCES:
patent: 4028431 (1977-06-01), Futami et al.
patent: 4200568 (1980-04-01), Trautvetter et al.
patent: 4251399 (1981-02-01), Tomoda et al.
patent: 4530970 (1985-07-01), Morozumi et al.
patent: 4530971 (1985-07-01), Geri et al.

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