Process for the manufacture of particle-board and fiberboard

Details Process for the manufacture of particle-board and fiberboard Process for the manufacture of particle-board and fiberboard

1996-01-31

1999-02-02

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264122, 264126, 26433122, 264DIG65, 264DIG69, 264112, B27N 308, B27N 318

Patent

active

058660577

ABSTRACT:
A process is described for the manufacture of tannin-bonded particle- and fiberboard wherein the binding of wood chips and fibers is accomplished by obtaining the formaldehyde necessary for the cross-linking of tannin by the hydrolytic decomposition of the binder present in old particle- or fiberboard. The formaldehyde obtained by hydrolytic decomposition is cross-linked with the tannin by high temperature and moisture during pressing.

REFERENCES:
patent: 3833327 (1974-09-01), Pitzer et al.
patent: 4072273 (1978-02-01), Reiniger
patent: 4113919 (1978-09-01), Hartman
patent: 4201851 (1980-05-01), Chen
patent: 5002248 (1991-03-01), Knape et al.

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