3534434

Information

• Patent Grant
• 3534434

• References
• Source

• Patent Number

  3,534,434

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1970
  54 years ago

• CPC

  • B29C44/461 - dispensing apparatus
  • B01J2/22 - by pressing in moulds or between rollers
  • B29C44/3461 - Making or treating expandable particles
  • C08B3/22 - Post-esterification treatments, including purification
  • C08B9/00 - Cellulose xanthate Viscose
  • C08B11/20 - Post-etherification treatments of chemical or physical type
  • C08B17/02 - for making organic esters of cellulose
  • C08J9/16 - Making expandable particles

• US Classifications

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