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