Method of pressing reconstituted lignocellulosic materials

Details Method of pressing reconstituted lignocellulosic materials Method of pressing reconstituted lignocellulosic materials

1981-11-30

1983-07-12

Hayes, Lorenzo B.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264109, 264128, B29J 502

Patent

active

043930190

ABSTRACT:
A method of producing reconstituted wood boards in a conventional press by introducing saturated steam through apertured press platens into a partially-compressed mat, composed of lignocellulosic material and a thermosetting resin binder, under specified conditions of mat density. Use of saturated steam in this manner allows production of a reconstituted wood board with shorter total press time than usual and with a more efficient use of energy. In addition total press time can be further reduced by injecting a gaseous catalyst into the mat to speed the cure of the thermosetting resin binder.

REFERENCES:
patent: 3280237 (1966-10-01), Corbin et al.
patent: 3699202 (1972-10-01), Verbestel
patent: 3891738 (1975-06-01), Shen
Shen, Forest Products Journ. 23 (3) pp. 21-29 (1973).
Stegmann et al., Journ. of Forestry and the Lumber Industry 94 (23) pp. 361-368 (1968).

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