RESIN FOAM SHEET, AND METHOD FOR PRODUCING RESIN FOAM SHEET
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Feb 25, 2011
filing date -
Mar 29, 2010
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Abandoned
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Abstract
An object is to provide a resin foam sheet having good reformability, and a method for easily producing such a resin foam sheet. Provided are a resin foam sheet formed by extrusion foaming with an extruder a polypropylene-based resin composition mainly composed of a polypropylene-based resin component containing a polypropylene-based resin and a high melt tension polypropylene resin having a higher melt tension than that of the polypropylene-based resin, wherein the high melt tension polypropylene resin has a melt tension after being passed through the extruder of 4 cN or more and 10 cN or less, and a rate at breakage after being passed through the extruder of 12 m/min or higher and 26 m/min or lower, and the like.
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