3726838

Information

• Patent Grant
• 3726838

• References
• Source

• Patent Number

  3,726,838

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1973
  51 years ago

• CPC

  • C08G18/44 - Polycarbonates
  • C08G18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G18/3275 - containing two hydroxy groups
  • C08G18/3823 - containing -N-C=O groups
  • Y10S528/903 - Polymerizing or processing an isocyanate under substantially anhydrous conditions

• US Classifications

  • 528 - Synthetic resins or natural rubbers