3493992

Information

• Patent Grant
• 3493992

• References
• Source

• Patent Number

  3,493,992

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1970
  54 years ago

• CPC

  • C08B17/02 - for making organic esters of cellulose
  • B01J2/20 - by expressing the material
  • C08B3/16 - Preparation of mixed organic cellulose esters
  • C08B3/22 - Post-esterification treatments, including purification
  • C08B3/28 - by precipitation

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus