System for making synthetic wood products from recycled materials
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United States of America Patent
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Feb 18, 1992
Grant Date -
N/A
app pub date -
Mar 14, 1990
filing date -
Mar 14, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for making synthetic wood products from waste wood fiber and recycled plastic material by mixing waste wood fiber having a moisture content of less than about 15% with dry waste plastic material, including low density and/or high density polyethylene; heating and kneading the mixture to form a homogeneous mass; sizing the mass into discrete chunks suitable for use as an extruder feed material; extruding the material to form products having predetermined cross sections; and rolling and cooling the product to prevent deformation of the product shape.
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