3756909

Information

• Patent Grant
• 3756909

• References
• Source

• Patent Number

  3,756,909

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1973
  51 years ago

• CPC

  • D21H17/02 - Material of vegetable origin
  • D21H13/34 - Protein fibres
  • D21H17/50 - Acyclic compounds
  • D21H17/51 - Triazines
  • D21H17/54 - obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
  • D21H17/57 - Polyureas Polyurethanes

• US Classifications

  • 162 - Paper making and fiber liberation