Accession Number : ADD005017

Title :   Bis-Ethynyl Heterocyclic Compositions and Method of Synthesis.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Kovar,Robert F ; Arnold,Fred E

Report Date : 25 Apr 1978

Pagination or Media Count : 7

Abstract : Bis-ethynyl quinoxaline compositions are prepared by the condensation reaction of an aromatic diglyoxyl or dibenzil with an ethynyl-substituted aromatic ortho-diamine. The compositions are useful as polymerizable plasticizers for heterocyclic thermoplastic resins in the fabrication of composites. Polymerizable plasticizers are materials that remain fluid and act as a plasticizer during early stages of fabrication and then polymerize to a rigid resin. (Author)

Descriptors :   *Patents, *Quinoxalines, *Plasticizers, *Composite materials, *Synthesis(Chemistry), Matrix materials, Thermoplastic resins

Subject Categories : Organic Chemistry
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE