USING OIL-BASED ADDITIVES TO IMPROVE LIGNOCELLULOSIC FIBRE BONDING AND DIMENSIONAL PERFORMANCE
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United States of America Patent
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Issued Date -
Sep 13, 2007
app pub date -
Mar 13, 2006
filing date -
Mar 13, 2006
priority date (Note) -
Abandoned
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Abstract
About 78.0-91.4% refined lignocellulosic fibres were blended with 8.0-12.0% formaldehyde-based resin, 0.5-2.0% wax and 0.1-8.0% oil in a blowline or a blender before mat forming and panel pressing. Fibres can be from cereal straws or wood species. Wax can be slack or emulsified wax. Oil is selected from different groups including, but not being limited to, vegetable oils, tree oils and any kinds of oils and oil mixtures which consist of fatty acids with 12 to 24 carbon atoms. Inverse Gas Chromatography (IGC) measurement and MDF panel test results have shown that fibre adhesion characteristics have changed significantly, leading to significant panel internal bond (IB) and dimensional stability improvements.
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