3853972

Information

• Patent Grant
• 3853972

• References
• Source

• Patent Number

  3,853,972

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1974
  50 years ago

• CPC

  • B29C44/206 - Using expandable particles or beads as starting material
  • Y10S264/05 - Use of one or more blowing agents together
  • Y10S264/09 - Pre-expansion of foamed polystyrene

• US Classifications

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