Prepress sealer application technology by foaming

Details Prepress sealer application technology by foaming Prepress sealer application technology by foaming

1995-04-03

1997-12-09

Beck, Shrive

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

427391, 427392, 427393, B05D 302, B05D 312

Patent

active

056958234

ABSTRACT:
This invention relates to a method for preparing wood composition board, such as hard board, fabricated consolidating fibers or chips under heat and pressure to form an integral board material. More particularly, this invention relates to an improved method for applying a clear or pigmented prepress coating, also known as a prepress sealer, to the surface of a fibrous mat by converting the prepress sealer into foam prior to subjecting the mat to a temperature and pressure press treatment.

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patent: 4230746 (1980-10-01), Nahta
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patent: 4940741 (1990-07-01), DeWacker et al.
patent: 5059264 (1991-10-01), Sheets
patent: 5089296 (1992-02-01), Bafford et al.

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