3711584

Information

• Patent Grant
• 3711584

• References
• Source

• Patent Number

  3,711,584

• Date Filed

  Not available

• Date Issued

  Tuesday, January 16, 1973
  52 years ago

• CPC

  • B29C67/2295 - after treatment of shaped foamed articles
  • B29B13/023 - Half-products
  • B29C44/022 - Foaming unrestricted by cavity walls
  • B29C44/203 - Expanding the moulding material in a vertical channel
  • B29C55/08 - transverse to the direction of feed
  • B29C67/2235 - comprising extruding the compounds before foaming
  • B29C67/2245 - extruding the compound through an annular die
  • B29K2105/04 - cellular or porous
  • B29L2023/00 - Tubular articles

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus