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It heats the production manner of the arukeniru aromatic resin foaming body and the foaming body
It heats the production manner of the arukeniru aromatic resin foaming body and the foaming body
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机译:加热阿鲁克尼鲁芳族树脂发泡体和发泡体的生产方式
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摘要
PROBLEM TO BE SOLVED: To provide a process for producing an alkenylarom. resin foam excellent in environmental adaptability, compression strength, heat insulation properties, combustibility, and production stability. ;SOLUTION: In the production process for an alkenylarom. resin foam by thermally melting an alkenylarom. resin (pref. polystyrene), mixing the resultant melt with a blowing agent to give a foamable gel, cooling the gel to a temp. suitable for foaming, and extruding the gel through a die into a lower pressure zone to form a foam, a blowing agent contg. CO2 in a concn. higher than 50 wt.% but lower than 80 wt.% (based on the blowing agent) is used.;COPYRIGHT: (C)1998,JPO
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