Blow line addition of thermosettable binder in fiberboard manufa

Details Blow line addition of thermosettable binder in fiberboard manufa Blow line addition of thermosettable binder in fiberboard manufa

1982-04-26

1983-09-06

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With liberating or forming of particles

264128, D04H 316

Patent

active

044028962

ABSTRACT:
A method and apparatus for producing a synthetic board from cellulosic and/or lignocellulosic materials wherein a thermosettable binder, preferably a polyisocyanate binder, is applied through a cooled nozzle to the hot and wet fibrous material in the blow line out of the refiner of a board forming process. Polyphenylpolyisocyanates, such as a mixture of diphenylmethane-4,4'-diisocyanate and polymethylene polyphenyl polyisocyanates, are a particularly suitable binder.

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The Donald S. Gilmore Laboratories, The Upjohn Company, "HIGHLIGHTS: Isobind 100; A Self-Releasing Isocyanate Binder for Reconstituted Wood Products", Report No. 19, 10/80.
Upjohn Polymer Chemicals Division, "Isocyanate Binder Technology, Isobind 100".

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