2139662

Information

• Patent Grant
• 2139662

• References
• Source

• Patent Number

  2,139,662

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1938
  86 years ago

• CPC

  • C08B3/00 - Preparation of cellulose esters of organic acids
  • C08B3/22 - Post-esterification treatments, including purification
  • C08B3/28 - by precipitation
  • C08B3/30 - Stabilising
  • C08B11/20 - Post-etherification treatments of chemical or physical type
  • C08B37/00 - Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00 Derivatives thereof

• US Classifications

  • 536 - Organic compounds