Accession Number : AD0164829

Title :   Thermally Stable Perfluoroalkylene Ether Bibenzoxazole Polymers.

Descriptive Note : Patent application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Evers,Robert C.

Report Date : 27 JUN 1974

Pagination or Media Count : 15

Abstract : The patent application concerns perfluoroalkylene ether bibenzoxazole polymers, thermally stable at elevated temperatures, which are prepared by the condensation of a perfluoroalkylene ether bisaminophenol and a perfluoroalkylene either diimidate. Because of the high thermal stability and low glass transition temperatures of the polymers, they are eminently suitable for use in aerospace applications where a wide range of temperature conditions is encountered. In particular, the polymers are useful as sealants and seals.

Descriptors :   *Heat resistant plastics, *Elastomers, Thermal stability, Seals, Viscoelasticity, Patents, Fluorine compounds, Synthesis(Chemistry), Polymerization, Ethers, Oxygen heterocyclic compounds, Nitrogen heterocyclic compounds, Monomers, Condensation reactions, Phenols, Imides

Subject Categories : Organic Chemistry
      Adhesives, Seals and Binders
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE