3644235

Information

• Patent Grant
• 3644235

• References
• Source

• Patent Number

  3,644,235

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • C08G18/727 - comprising distillation residues or non-distilled raw phosgenation products
  • C08G18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G18/3802 - having halogens
  • C08G18/3814 - Polyamines
  • C08G18/6685 - with compounds of group C08G18/3225 or polyamines of C08G18/38
  • C08G2101/0008 - flexible
  • C08G2101/005 - < 50 kg/m
  • C08G2101/0058 - > 50 and < 150 kg/m

• US Classifications

  • 521 - Synthetic resins or natural rubbers