B - Operations – Transporting – 27 – N
Patent
B - Operations, Transporting
27
N
18/1010
B27N 1/02 (2006.01) B01F 3/08 (2006.01) B01F 3/12 (2006.01) B01F 5/04 (2006.01) B01F 5/06 (2006.01) B27N 9/00 (2006.01)
Patent
CA 1329872
APPARATUS AND METHOD OF MANUFACTURING SYNTHETIC BOARDS ABSTRACT OF THE INVENTION A method and apparatus for producing a synthetic board from cellulosic or lignocellulosic fibers is disclosed wherein a standard isocyanate binder is emulsified and immediately applied to the fibers before consolidation into a finished board product. The apparatus includes an emulsification and application nozzle comprising a diluent inlet, a binder inlet, a mixing section for emulsifying the diluent and the binder, and a spray nozzle for applying the binder/diluent emulsion to the fibers. The method includes supplying a binder stream, supplying a diluent stream, emulsifying the binder with the diluent and immediately applying the emulsion to the fibers. The method further includes flushing the binder/diluent emulsion using the diluent at the end of a binder application run to prevent curing of the emulsion and clogging of the apparatus. The present invention can be used to apply the binder/diluent emulsion to the fibers either in the blowline or downstream of the blowline, such as in the blender.
604623
Bauer Ted J.
Harmon David M.
Oyen Wiggs Green & Mutala Llp
Weyerhaeuser Nr Company
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