Resin and wood fiber composite profile extrusion method

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United States Patent

5882564

Link to this page

http://www.wikipatents.com/5882564.html

Inventor(s)

Puppin; Giuseppe (Bayport, MN)

Abstract

The invention relates to a method for forming a composition comprising a thermoplastic composite in the form of a linear profile extrudate. Such a profile comprises a structural member having improved tensile strength, flex modulus, impact resistance and other improved structural properties. The invention involves a unique extruder configuration having a change in direction for the resin and fiber that optimizes the composite strength by promoting the random orientation of the fibers resulting in improved structural properties. Further, because of the change in direction, the extruder can include a cooling feature that cools the profile interior as the profile leaves the exit die thus increasing the physical properties, productivity and quality of the product.

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