Accession Number : AD0164479
Title : Benzofuroisoquinoline Polymers and Method for Synthesizing Same.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Report Date : 06 OCT 1972
Pagination or Media Count : 12
Abstract : In the patent application, benzofuroisoquinoline ladder polymers are prepared by the condensation of 2,3,7,8-tetraaminobenzofuran with an aromatic tetracarboxylic acid or a dianhydride thereof. The polymers possess a high degree of thermal stability, a property which renders them particularly suitable for use in high temperature applications such as in the fabrication of plastic composites, fibrous materials and protective coatings.
Descriptors : *Carboxylic acids, *Polymerization, *Nitrogen heterocyclic compounds, Patents, Amines, Quinolines
Subject Categories : Plastics
Distribution Statement : APPROVED FOR PUBLIC RELEASE