Accession Number : ADD001522

Title :   1,11-BIS(3-Amino-4-Hydroxyphenyl) Perfluoro-3,9-Dioxaundecane.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Evers,Robert C

Report Date : 02 Sep 1975

Pagination or Media Count : 5

Abstract : This patent discusses perfluoroalkylene ether bibenzoxazole polymers which are thermally stable at elevated temperatures and 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, *Halocarbon plastics, *Heat resistant plastics, Thermal stability, Sealing compounds, Synthesis(Chemistry), Monomers, Temperature, Condensation reactions, Heterocyclic compounds, Fluorinated hydrocarbons, Transition temperature, Nitrogen heterocyclic compounds, Elastic properties

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE