Nitrile containing perfluoropolyether-perfluoroelastomer blends

Details Nitrile containing perfluoropolyether-perfluoroelastomer blends Nitrile containing perfluoropolyether-perfluoroelastomer blends

1995-03-10

1996-08-13

Buttner, David

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

Synthetic resins

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

525186, 524208, 528402, C08L 2718, C08L 2712

Patent

active

055456936

ABSTRACT:
Blends of a perfluoroelastomer with a nitrile containing polyperfluoroether are described. The addition of the polyperfluoroether often improves the properties, processability and/or low temperature properties of the perfluoroelastomer. It is preferred if the perfluoroelastomer contains nitrile groups so that the two polymers can cocure, thereby retarding separation of the polyperfluoroether from the perfluoroelastomer.

REFERENCES:
patent: 3317484 (1967-05-01), Fritz et al.
patent: 4356291 (1982-10-01), Darling
patent: 4413094 (1983-11-01), Aufdermarsh, Jr.
Soloski, E. J. et al, "Synthesis of Perfluoro(Polyether) Difunctional Compounds", Journal of Flourine Chemistry, 11, 601-612 (1978).
Evers, R. C. et al, "Hydrolytically Stable Fluorocarbon Ether Bibenzoxazole Polymers", J. of Polymer Sci.: Poly. Chem. Edition, 19, 427-442 (1981).

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