Method of making dimensionally stable composite board and compos

Details Method of making dimensionally stable composite board and compos Method of making dimensionally stable composite board and compos

1989-04-14

1991-07-02

Davis, Jenna

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156283, 156335, 264109, 264123, B32B 3120

Patent

active

050282867

ABSTRACT:
Disclosed is a method of making a dimensionally stable composite board product made from a mixture of particles of a cellulose material and binder and a composite board so produced by such method. Dimensional stability is in reference to the resistance to thickness swelling when the board is subjected to high humidity or moisture conditions. The method and composite board displaying the attribute of improved dimensional stability involves subjecting the particles of cellulosic material to a pressurized steam treatment and then making the composite board under heat and pressure. When compared to conventional composite board that has not been subjected to the pretreatment, the difference in thickness swelling is significant.

REFERENCES:
patent: 2224135 (1940-12-01), Boehm
patent: 3021224 (1962-02-01), Meiler
patent: 3021244 (1962-02-01), Meiler
patent: 3533906 (1970-10-01), Reiniger
patent: 4162877 (1979-07-01), Nyberg
patent: 4461648 (1984-07-01), Foody

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