Process and device for producing foamed molded object
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United States of America Patent
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Jul 7, 2020
Grant Date -
Aug 10, 2017
app pub date -
Apr 27, 2017
filing date -
Oct 31, 2014
priority date (Note) -
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Abstract
There is provided a method of producing a foamed molded product, including: plasticizing and melting a resin material containing a thermoplastic resin and a chemical foaming agent in a plasticizing cylinder in which a screw is provided, to provide a molten resin containing the chemical foaming agent; supplying a fluid with a fixed pressure into the plasticizing cylinder to pressurize the molten resin; and performing foam molding of the molten resin. The resin material contains 0.1 to 2% by weight of the chemical foaming agent.
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