Cooling of extruded and compression molded materials
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United States of America Patent
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-
Mar 23, 2004
Grant Date -
Nov 14, 2002
app pub date -
Dec 19, 2001
filing date -
Jan 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by releasing a cooling fluid in a hollow portion of the extrudate. Hollows may be created in order to reduce material, weight, and/or processing time. A fluid below about 80 degrees Fahrenheit is released into the hollow so as to cool the material and to assist in solidification. Increases in production line throughput may result by rapidly cooling the molded material. Other uses for the present invention include injection molding, compression molding, gas assist molding, and co-extrusion.
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