3658641

Information

• Patent Grant
• 3658641

• References
• Source

• Patent Number

  3,658,641

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • C08G73/022 - from polyamines and epihalohydrins
  • C08G59/10 - of polyamines with epihalohydrins or precursors thereof
  • C08G65/2618 - the other compounds containing nitrogen
  • 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
  • 528 - Synthetic resins or natural rubbers
  • 548 - Organic compounds