Granulating die, granulation device and method of manufacturing expandable thermoplastic resin granules
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United States of America Patent
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Nov 13, 2007
Grant Date -
Sep 14, 2006
app pub date -
Mar 11, 2004
filing date -
Mar 12, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A granulating die B is provided with a resin discharge surface 5a to which a flow of water is contacted; and a plurality of nozzles 8 which communicate to a cylinder of an extruder are provided in this resin discharge surface 5a. Upon the resin discharge surface 5a, these nozzles 8 are not formed in at least one of its regions P which are in the direction of inflow of the flow of water and in the direction of outflow of the flow of water, and its regions R which are in directions orthogonal to this direction of inflow of said flow of water and this direction of outflow of said flow of water, but are only formed in the other regions Q thereof.
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