3657235

Information

• Patent Grant
• 3657235

• References
• Source

• Patent Number

  3,657,235

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • C08G18/00 - Polymeric products of isocyanates or isothiocyanates
  • C08G18/712 - containing halogens
  • C08K5/20 - Carboxylic acid amides
  • C08K5/21 - Urea Derivatives thereof
  • C08K5/3477 - Six-membered rings
  • C08L77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
  • C08L77/06 - Polyamides derived from polyamines and polycarboxylic acids

• US Classifications

  • 544 - Organic compounds
  • 252 - Compositions