PRODUCTION OF THERMOPLASTIC RESIN FOAM

PROBLEM TO BE SOLVED: To provide a process whereby a thermoplastic resin foam having a uniform thickness can be obtained and the formed cuttings can be recycled. SOLUTION: In conveying a foamable thermoplastic resin sheet which comprises substantially uniformly arranged foamable thermoplastic resin...

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Bibliographische Detailangaben
Hauptverfasser:	INABA HIROMICHI, YAGI KOSEI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a process whereby a thermoplastic resin foam having a uniform thickness can be obtained and the formed cuttings can be recycled. SOLUTION: In conveying a foamable thermoplastic resin sheet which comprises substantially uniformly arranged foamable thermoplastic resin particles containing a foaming agent and integrally joined to each other through foamable thermoplastic resin films along the production line, the particles are cut to a definite height, and the sheet is foamed by heating to the decomposition temperature of the foaming agent or above.