CROSSLINK STABILIZATION PROCESS FOR AZO-CROSSLINKED FLUOROPOLYMER WITH PERFLUOROETHER PENDANT GROUPS

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United States of America Patent

APP PUB NO 20150225516A1
SERIAL NO

14430414

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Abstract

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This invention pertains to a thermal treatment process for converting azo crosslinks in an azo-crosslinked fluoropolymer having perfluoroether pendant groups to perfluoroalkyl crosslinks. The perfluoroalkyl crosslinks exhibit greater thermal and chemical stability than to the azo crosslinks. According to the treatment, an azo-crosslinked fluoropolymer having perfluoroether pendant groups is subject to heating in the temperature range of 300 to 350° C. in order to effect a high degree of conversion to the perfluoroalkyl-crosslinked fluoropolymer.

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Patent Owner(s)

Patent OwnerAddress
E I DU PONT DE NEMOURS AND COMPANYWILMINGTON STATE OF DELAWARE UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wheland, Robert Clayton Wilmington, US 71 593

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