Compounds Having The -s-scn Group Bonded Directly To Carbon, Which Carbon May Be Single Bonded To Any Atom But May Be Multiple Bonded Only To Carbon Patents (Class 562/885)
  • Heterocycle oligomers
    Patent number: 5126410
    Abstract: Linear or multidimensional, crosslinking, solvent resistant oxazole, thiazole, or imidazole (i.e., heterocycle) oligomers and blends of the crosslinking oligomers and noncrosslinking comparable polymers are described. The oligomers are prepared by reacting tetraamines, diaminodiols, or diaminothiols (i.e. four-functional compounds) with poly-carboxylic acid halides, and crosslinking phenylimide end cap monomers in a suitable solvent under an inert atmosphere.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: June 30, 1992
    Assignee: The Boeing Company
    Inventors: Hyman R. Lubowitz, Clyde H. Sheppard