Method for manufacturing wood fiber insulating boards
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United States of America Patent
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Mar 12, 2013
Grant Date -
Dec 1, 2011
app pub date -
Aug 14, 2009
filing date -
Aug 26, 2008
priority date (Note) -
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Abstract
The invention relates to a method for manufacturing wood fiber insulating boards, wherein wood fibers are mixed with thermoplastic plastic fibers as binders and a fiber mat is produced therefrom, wherein multi-component fibers composed of at least one first and one second plastic component having different melting points are used as plastic fibers, wherein the fiber mat is heated in such a way that the second component of the plastic fiber softens and wherein the fiber mat is cooled down to produce the insulating board, characterized in that a steam/air mixture having a specified dew point flows through the fiber mat to heat the fiber mat and that multi-component plastic fibers are used as binders, the first component of which has a melting point above the dew point and the second component of which has a melting point below the dew point.
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