Wood fiber polymer composite extrusion and method

Details Wood fiber polymer composite extrusion and method Wood fiber polymer composite extrusion and method

C - Chemistry, Metallurgy

08

L

C08L 35/06 (2006.01) C08J 9/35 (2006.01) C08L 25/12 (2006.01) C08L 55/02 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2311614

A method for extruding a thermoplastic polymer/ wood fiber composite utilizes styrene acrylonitrile as the principal thermoplastic component. Acrylonitrile butadiene styrene is used as a stiffener and modifier to prevent degradation of a foaming agent's efficacy. The method of the invention and the extrusion produced by the inventive method are particularly applicable to extrusions having high aspect ratio cross-sectional shapes and extrusions in which the ratio of wall thickness to interior volume is large.

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