3520960

Information

• Patent Grant
• 3520960

• References
• Source

• Patent Number

  3,520,960

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1970
  54 years ago

• CPC

  • B01D71/20 - Esters of inorganic acids
  • B01D67/0011 - Casting solutions therefor
  • B01D67/003 - by selective elimination of components
  • C08J9/26 - by elimination of a solid phase from a macromolecular composition or article
  • C08J2201/0444 - Salts
  • C08J2201/0502 - the liquid phase being organic
  • C08J2301/18 - Cellulose nitrate

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 106 - Compositions: coating or plastic
  • 210 - Liquid purification or separation