Purification and adhesion of fluoropolymers

Details Purification and adhesion of fluoropolymers Purification and adhesion of fluoropolymers

1992-08-28

1993-08-17

Teskin, Fred

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

Synthetic resins

Treating polymer containing material or treating a solid...

528481, 524462, 524545, 524546, 156 83, 156285, 156326, 156333, 4272071, C08F 600, C09J 1106, C09J12712

Patent

active

052370496

ABSTRACT:
A process for purifying fluoropolymers by contacting them at temperatures above 140.degree. C. with a liquid perfluorinated cycloalkane. The resulting polymers are particularly useful where polymers with reduced impurities are desirable, such as in medical devices and in parts for the semiconductor manufacturing industry. The liquid perfluorinated cycloalkanes improve the adhesion of fluoropolymer to themselves and other materials.

REFERENCES:
Hackh's Chemical Dictionary, J. Grant (ed.), McGraw-Hill, Inc., N.Y., 1969, p. 199.

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