Apparatus and method for low-density cellular wood plastic...

Details Apparatus and method for low-density cellular wood plastic... Apparatus and method for low-density cellular wood plastic...

2007-03-06

2007-03-06

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With mechanical means forming or expanding pores

C425S308000, C425S133500, C425S378100

Reexamination Certificate

active

10699599

ABSTRACT:
A low-pressure CO2tank or an air compressor with a refrigerated air dryer is attached either at or after the vent zone of a standard twin-screw extruder. During or after extrusion, the gas is dissolved in the wood-plastic melt. The CO2expands which foams the wood-plastic material.

REFERENCES:
patent: 3954929 (1976-05-01), Hoenke
patent: 4039691 (1977-08-01), Hildebolt
patent: 4455761 (1984-06-01), Terhune et al.
patent: 4613471 (1986-09-01), Harris
patent: 5160674 (1992-11-01), Colton et al.
patent: 5334356 (1994-08-01), Baldwin et al.
patent: 5474722 (1995-12-01), Woodhams
patent: 5516472 (1996-05-01), Laver
patent: 5753161 (1998-05-01), Lightle et al.
patent: 5827462 (1998-10-01), Brandt et al.
patent: 5866264 (1999-02-01), Zehner et al.
patent: 6117924 (2000-09-01), Brandt
patent: 6344504 (2002-02-01), Zehner et al.
patent: 6498205 (2002-12-01), Zehner
patent: 6808375 (2004-10-01), Klotzer
patent: 6949209 (2005-09-01), Zander et al.
patent: 2 248 138 (1975-05-01), None

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