Accession Number : ADD015395

Title :   Certain Di-Phthalonitriles.

Descriptive Note : Patent Application, Filed 12 Mar 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Keller, Teddy M

Report Date : 12 Mar 1992

Pagination or Media Count : 19

Abstract : An object of this invention is the di-phthalonitrile monomers, prepolymers and polymers which are devoid of ether and/or phenoxy groups. Another object of this invention is the high temperature polymers which can withstand temperatures in excess of 300 deg C without deterioration of thermal and oxidative stability. Another object of this invention is the polymeric phthalonitriles which are devoid of voids. Another object of this invention is the polymeric phthalonitriles which have at least one aromatic imide linkage in the bridging groups. Another object of this invention is the polymeric phthalonitriles which are more resistant to oxidative attack than epoxies, bismaleimides and conventional thermosetting polyimides.

Descriptors :   *PATENT APPLICATIONS, *POLYMERS, *NITRILES, ETHERS, MONOMERS, VOIDS, IMIDES, OXIDATION, RESISTANCE, THERMOPLASTIC RESINS, ANHYDRIDES

Subject Categories : Polymer Chemistry
      Plastics
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE