3630834

Information

• Patent Grant
• 3630834

• References
• Source

• Patent Number

  3,630,834

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  52 years ago

• CPC

  • D21H17/58 - obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur
  • C08G59/4021 - Ureas; Thioureas; Guanidines; Dicyandiamides
  • C08L63/00 - Compositions of epoxy resins Compositions of derivatives of epoxy resins

• US Classifications

  • 162 - Paper making and fiber liberation