Resin-impregnated substrate, method of manufacture and system therefor
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United States of America Patent
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Sep 16, 2003
Grant Date -
Oct 24, 2002
app pub date -
Feb 13, 2001
filing date -
Feb 13, 2001
priority date (Note) -
Expired
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Abstract
The disclosed invention relates to polyisocyanate-impregnated lignocellulosic substrates having improved strength, water resistance and appearance, and also to methods and systems for producing such substrates. The polyisocyanate-impregnated lignocellulosic substrate are produced by impregnating a lignocellulosic substrate with an isocyanate resin, followed by polymerization of the isocyanate resin by applying a heated liquid to the impregnated substrate.
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