3719639

Information

• Patent Grant
• 3719639

• References
• Source

• Patent Number

  3,719,639

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1973
  51 years ago

• CPC

  • C08G18/65 - Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
  • C08G18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G18/3823 - containing -N-C=O groups
  • C08G18/3842 - containing heterocyclic rings having at least one nitrogen atom in the ring
  • Y10S260/24 - Flameproof

• US Classifications

  • 528 - Synthetic resins or natural rubbers
  • 260 - Chemistry of carbon compounds