3811992

Information

• Patent Grant
• 3811992

• References
• Source

• Patent Number

  3,811,992

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • B27D1/06 - Manufacture of central layers Form of central layers
  • B27K3/15 - Impregnating involving polymerisation including use of polymer-containing impregnating agents
  • B27K3/52 - Impregnating agents containing mixtures of inorganic and organic compounds
  • B32B21/042 - of wood
  • B32B21/13 - all layers being exclusively wood
  • B32B21/14 - comprising wood board or veneer
  • C08L97/02 - Lignocellulosic material
  • C09K21/00 - Fireproofing materials
  • B32B2260/026 - Wood layer
  • B32B2307/3065 - Flame resistant or retardant, fire resistant or retardant
  • C08L83/02 - Polysilicates
  • C08L83/04 - Polysiloxanes
  • Y10S428/921 - Fire or flameproofing
  • Y10T428/31663 - As siloxane, silicone or silane
  • Y10T428/31978 - Cellulosic next to another cellulosic
  • Y10T428/31986 - Regenerated or modified

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 106 - Compositions: coating or plastic
  • 252 - Compositions
  • 427 - Coating processes