Accession Number : ADD005823
Title : Readily Curable Fluorocarbon Ether Bibenzoxazole Polymers.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Evers,Robert C ; Abraham,Tonson
Report Date : 27 Feb 1979
Pagination or Media Count : 10
Abstract : Thermooxidatively and hydrolytically stable perfluoroalkylene ether bibenzoxazole polymers containing hydrocarbon cure sites are synthesized by the polocondensation of a fluorocarbon bis(o-aminophenol) containing a hydrocarbon moiety and a perfluoroalkylene ether diimidate or dithioimidate ester. The polymers are readily curable to elastomers that are resistant to hydrolysis over a wide use-temperature range. Thus, the polymers are especially suitable for use in aerospace applications where extreme environments are encountered. In particular, the polymers are useful as seals, sealants, and the like.
Descriptors : *Patents, *Heat resistant plastics, *Fluoropolymers, *Benzoxazoles, *Synthesis(Chemistry), *Sealing compounds, Aerospace environment, Elastomers, Stability, Hydrolysis, Oxidation resistance
Subject Categories : Polymer Chemistry
Adhesives, Seals and Binders
Distribution Statement : APPROVED FOR PUBLIC RELEASE