Perfluoroelastomer curing

Details Perfluoroelastomer curing Perfluoroelastomer curing

1994-04-19

1995-09-05

Lipman, Bernard

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

Synthetic resins

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

525248, 525276, 5253263, 525370, C08F 800

Patent

active

054479932

ABSTRACT:
Nitrile containing perfluoroelastomers are cured by a combination of a peroxide, a coagent, and a catalyst which causes crosslinks to form using the nitrile groups. The method is relatively fast and economical, and gives vulcanizates which have excellent high temperature properties. Triphenyltin hydroxide is an exceptionally good catalyst for the formation of crosslinks from nitrile groups in perfluoroelastomers.

REFERENCES:
patent: 4281092 (1981-07-01), Breazeale
patent: 4394489 (1983-07-01), Aufdermarsh
patent: 4413094 (1983-11-01), Aufdermarsh, Jr.
patent: 4525539 (1985-06-01), Feiring
patent: 4713418 (1987-12-01), Logothetis
patent: 4912166 (1990-03-01), Stewart
patent: 4983680 (1991-01-01), Ojakaar
patent: 5268405 (1993-12-01), Ojakaar

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