3504068

Information

• Patent Grant
• 3504068

• References
• Source

• Patent Number

  3,504,068

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1970
  54 years ago

• CPC

  • B29C44/3461 - Making or treating expandable particles
  • B29C44/3496 - The foam being compressed and later released to expand
  • B29C67/207 - comprising impregnating expanded particles or fragments with a binder
  • B29C67/221 - Applying counter pressure during foaming
  • C08J9/232 - by sintering expandable particles
  • C08J9/236 - using binding agents
  • C08J2323/02 - not modified by chemical after treatment

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 521 - Synthetic resins or natural rubbers