Performance enhancement in the stabilization of organic materials
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United States of America Patent
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Apr 6, 2010
Grant Date -
Jul 31, 2008
app pub date -
Jul 1, 2005
filing date -
Jul 3, 2004
priority date (Note) -
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Abstract
The addition of zinc borate alone or together with a hindered amine light stabilizer and ultra-violet light absorber to organic materials such as thermoplastic polyolefin resin, as is common in wood-plastic composites, provides a substantial reduction in the ultra-violet light degradation of the resin in comparison with similar materials made without zinc borate. This could provide substantial improvements in the long term durability of wood-plastic composites and other organic materials which are used in exterior environments and subject to ultra-violet exposure from the sun.
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