Method for the production of cellulosic board materials

Details Method for the production of cellulosic board materials Method for the production of cellulosic board materials

1983-10-05

1985-07-09

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 62, 264109, 264128, 428396, 428407, 428528, 156 622, 156327, C08L 102, B29J 500

Patent

active

045283095

ABSTRACT:
A method for producing board materials of cellulose containing components using formaldehyde-based curable glues. By treatment of at least one part of the components at a low moisture content with a formaldehyde absorbing agent the board materials obtained after pressing get a low content of free formaldehyde and very good strength properties. The moisture content of the components at the treatment is lower than 12 percent by weight. the formaldehyde absorbing agent is preferably urea.

REFERENCES:
patent: 2527795 (1950-11-01), Caughey
patent: 3649397 (1972-03-01), Peters
patent: 3905847 (1975-09-01), Black
patent: 4285843 (1981-08-01), Mayerhoffer
patent: 4299877 (1981-11-01), Smart

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