Accession Number : ADD000376

Title :   Thermally Stable Perfluoroalkylene Ether Bibenzoxazole Polymers.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Evers,Robert C

Report Date : 05 Nov 1974

Pagination or Media Count : 6

Abstract : The patent descirbes perfluoroalkylene ether bibenzoxazole polymers, thermally stable at elevated temperatures which are prepared by the condensation of a perfluoroalkylene ether bisaminophenol and a perfluoroalkylene ether 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 :   *Patents, *Heat resistant plastics, *Elastomers, Polymerization, Polymers, Synthesis(Chemistry), Heterocyclic compounds, Ethers, Polycyclic compounds, Thermal stability, Seals

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE