Polyolefin wood fiber composite
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United States of America Patent
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Jan 20, 2004
Grant Date -
Sep 6, 2001
app pub date -
Apr 3, 2001
filing date -
Apr 16, 1999
priority date (Note) -
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Abstract
A complex profile made of a composite comprising a polyolefin polymer and a wood fiber. The composite is useful in conventional structural applications. The profile can be used in residential and commercial structures. The profile is used in the manufacture of the fenestration components such as windows and doors. The profile is designed with a cross-sectional shape to form structural elements in the fenestration units that possess sufficient strength, thermal stability and weatherability. The member comprises a hollow cross-section with at least one structural web or one fastener web. The profile can have a visible capstock layer and can be assembled using thermal welding processes.
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