Fast cured lignocellulosic particle board and method of...

Details Fast cured lignocellulosic particle board and method of... Fast cured lignocellulosic particle board and method of...

B - Operations, Transporting

32

B

154/97

B32B 21/02 (2006.01) B29J 5/00 (1980.01) C09J 3/16 (1980.01)

Patent

CA 1067005

ABSTRACT OF THE DISCLOSURE A fast cured lignocellulosic particle board comprises a hot consolidated laminar mat of lignocellulosic particles. The mat has a middle lamina of particles coated with a fast setting, acid cata- lyzed, phenol aldehyde thermosetting resin, while the two surface laminae comprise particles coated with a relatively slow curing, alkali catalyzed phenol aldehyde thermosetting resin. The middle lamina is fast curing, but potentially adherent to the metal cauls of the hot press in which the board is manufactured. Although the surface laminae are slower curing, they are non-adherent to the cauls The net result is a non-sticking particle board curable in the press in about one-half the press time conventionally required.

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