Method for Treating Lignocellulosic Parts
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Jul 2, 2010
filing date -
Jul 3, 2009
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Abstract
A method for treating lignocellulosic parts for producing foamed or foam-like parts, including: drying the lignocellulosic parts, the drying involving removing water, wherein the drying is achieved by applying at least one liquid drying agent that dissolves and/or at least partly replaces the water, wherein preferably the drying agent is a swelling agent for lignocellulose; and chemical modification, by etherification of the dried lignocellulosic parts; wherein the chemical modification is such that a volume of the lignocellulosic parts is increased by at least 25% with respect to an initial volume of the parts.
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