Wood chip board and process for the preparation thereof

Details Wood chip board and process for the preparation thereof Wood chip board and process for the preparation thereof

1980-04-21

1981-08-25

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264109, 264113, 264122, C08L 102

Patent

active

042858437

ABSTRACT:
A wood chip board the binder of which is an aminoplast, the amount of solid resin binder in the area of the surfaces of the board being less than 8% by weight of the chip material (absolutely dry) and the amount of solid resin binder in the area of the center of the board being equal or higher than in the area of the surfaces of the board as a percentage of the chip material in the center of the board. In preparing such a board the chip material providing the surfaces is advantageously glued with a liquor of an aminoplast the concentration of which is about 10 to 35% and preferably about 20 to 30%.

REFERENCES:
patent: 3959195 (1976-05-01), Eriksson
patent: 4035120 (1977-06-01), Eriksson

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