containing heterocyclic rings having at least one nitrogen atom in the ring

Patents Grantslast 30 patents

  • Information Patent Grant

    Polyurethanes containing triazine or both triazine and oxazoline, t...

    • Patent number 4,699,933
    • Issue date Oct 13, 1987
    • The Dow Chemical Company
    • Robert E. Hefner
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    3766204

    • Patent number 3,766,204
    • Issue date Oct 16, 1973
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    3134777

    • Patent number 3,134,777
    • Issue date May 26, 1964
    • C07 - ORGANIC CHEMISTRY