Apparatus for blow line addition of thermosettable binder in fib

Details Apparatus for blow line addition of thermosettable binder in fib Apparatus for blow line addition of thermosettable binder in fib

1983-08-15

1985-08-06

Alvo, Steve

Paper making and fiber liberation

Apparatus

With beating, refining, and/or disintegrating means

162 10, 162 23, 118303, 241 15, 241 60, D04H 316, D21C 114

Patent

active

045334366

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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