Thermoplastic compositions containing metal material
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United States of America Patent
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Jan 9, 2007
Grant Date -
May 6, 2004
app pub date -
Nov 1, 2002
filing date -
Nov 1, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Thermoplastic compositions containing metal materials and a method for preparing the same. The compositions are formed into particles having diameters suitable for a rotational thermoforming processing. The compositions are particularly applicable for use in slush molding processes where efficient heat transfer to the material is desired to form improved surface quality thermoplastic skin. A preferred method for preparing thermoplastic compositions containing metal material into a slush moldable powder comprises melt compounding the composition to form pellets, and further processing the pellets by cryogenic pulverization. A preferred method for forming micropellets uses an extruder having a gear pump to increase the melt pressure.
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