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