System and process for making synthetic wood products from recyc

Details System and process for making synthetic wood products from recyc System and process for making synthetic wood products from recyc

1990-05-30

1992-03-17

Olszewski, Robert P.

Conveyors: power-driven

Conveying system having plural power-driven conveying sections

Forming a single conveying path

193 35R, 198782, 198620, A65G 1514

Patent

active

050960466

ABSTRACT:
A process 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.

REFERENCES:
patent: 2490381 (1949-12-01), Shields
patent: 3642158 (1972-02-01), Koennecke et al.
patent: 3866640 (1975-02-01), Sweet et al.
patent: 3904022 (1975-09-01), Lutz
patent: 3978974 (1976-09-01), Morrissey et al.
patent: 4146083 (1979-03-01), Scheurecker et al.
patent: 4313488 (1982-02-01), Reymont
patent: 4754867 (1988-07-01), De Anda

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