Accession Number : ADD004325

Title :   Thermally Stable, Highly Fused Imide Compositions.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Arnold,Fred E ; Hedberg,Frederick L

Report Date : 30 Aug 1977

Pagination or Media Count : 6

Abstract : Thermally stable, highly fused imide polymers are prepared by reacting 2,2'-bis(phenylethynyl)-4,4'-diaminobiphenyl or 2,2'-bis-(phenylethynyl)-5,5'-diaminobiphenyl with an aromatic dianhydride. The polyimides are particularly suitable for use in high temperature applications, such as in the fabrication of fiber reinforced structural composites, fibrous materials and protective coatings. (Author)

Descriptors :   *Heat resistant plastics, *Polyimide resins, *Synthesis(Chemistry), *Patents, Polymers, High temperature, Fiber reinforced composites, Protective coatings, Synthetic fibers, Phenyl radicals, Alkynes, Biphenyl, Amines, Chemical reactions, Aromatic compounds, Heterocyclic compounds

Subject Categories : Polymer Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE