Weatherable building materials
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United States of America Patent
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Jul 8, 2003
Grant Date -
N/A
app pub date -
Jul 23, 1999
filing date -
Aug 14, 1997
priority date (Note) -
Expired
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Abstract
Weatherable building materials particularly well suited for entry door skins and other exterior building components are prepared by compression molding lignocellulosic fibers digested under conditions such that partial breakdown of hemicellulosic and other components produces an in situ binder, together with a secondary phenol/formaldehyde binder resin, followed by impregnating the product with a non-fugitive tertiary binder.
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