Stock material or miscellaneous articles – Composite – Of aldehyde or ketone condensation product
Patent
1993-01-28
1994-06-28
Lesmes, George F.
Stock material or miscellaneous articles
Composite
Of aldehyde or ketone condensation product
428526, 428528, 521102, 521 841, 524 21, 156 622, B32B 2742, B32B 2308, C08G 1212, C08K 334
Patent
active
053245903
ABSTRACT:
Particleboard is produced by coating the particles of wood furnish with an adhesive comprising a foamed mixture of 96-98 percent by weight urea formaldehyde and 2-4 percent by weight dried animal blood, the mixture being foamed to about 5-15 times the volume of the liquid resin to provide a urea formaldehyde resin solids content of 45-70 percent by weight. The foamed adhesive mixture is coated onto the wood particles of the furnish, as by means of a blender, to provide the finished particleboard with a resin solids content of 5-10 percent by weight.
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"Bonding Particleboard With Foamed Adhesives", by Allan Watters and J. D. Wellons, Forest Products Journal, vol. 28, No. 2, Feb. 1978, pp. 43-48.
"Foamed Adhesives For Particleboard", by Terry Sellers, Jr., Technical Note, Forest Products Journal, vol. 38, No. 11/12 Nov./Dec. 1988, pp. 55-56.
Demaree Thomas L.
Hansen Boyd H.
Nylund Sven J.
Rhoden Robert L.
Lesmes George F.
Pacific Adhesives Co., Inc.
Shelborne Kathryne E.
Spare Parts Manufacturers, Inc.
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