US Patent 7163974 Lignocellulosic composites
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Frederick M. Ascherl0
Jeffrey D. Lloyd0
Mark J. Manning0
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Patent abstract
Lignocellulosic-based woodfiber-plastic composite products containing a pesticidal amount of calcium borate is resistant to attack by wood destroying fungi and insects. The preferred calcium borates are the calcium polytriborates having a CaO:B2O3 molar ratio of about 2:3 and calcium hexaborates, having a CaO:B2O3 ratio of 1:3. Composites can be produced by combining the calcium borate with particles of the lignocellulosic material and the thermoplastic resin binder, and heating and extruding the resultant mixture through a die to form the composite product.
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US Patent 07163974 Lignocellulosic composites US Patent 7163974 Lignocellulosic composites
Infobox
Patent Number
071639740
Patent Number
71639740
Edits on 23 Sep, 2022
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Patent Jurisdiction
Patent Number
071639740
Date of Patent
January 16, 2007
0Patent Application Number
101195920
Date Filed
April 9, 2002
0Official Website
Patent Primary Examiner
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US Patent 07163974 Lignocellulosic composites
Infobox
Is a
Patent jurisdiction
Patent number
07163974
Date of patent
January 16, 2007
Patent application number
10119592
Date Filed
April 9, 2002
Patent primary examiner
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