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
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE