Wood preservatives and methods for treating wood
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United States of America Patent
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May 3, 2016
Grant Date -
Jul 9, 2015
app pub date -
Jan 7, 2014
filing date -
Jan 7, 2014
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Abstract
Treated wood, wood preservative compositions, and methods for treating wood generally include applying to the wood a wood preservative composition comprising a boron containing compound and a pH-reduced black liquor comprising soluble lignin, wherein the boron-containing compound is soluble in the pH-reduced black liquor and wherein the pH-reduced black liquor is derived from a carbonation process or an acid addition process of black liquor having phase-separated solid lignin and/or dense liquid lignin removed therefrom, and drying the wood.
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