Low-density cellular wood plastic composite and process for...

Details Low-density cellular wood plastic composite and process for... Low-density cellular wood plastic composite and process for...

2002-04-26

2008-10-07

Huson, Monica A (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

C264S050000, C264S053000

Reexamination Certificate

active

07431872

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

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