EXPANSION RATIO IMPROVER FOR POLYMER MATERIALS, FOAMING AGENT COMPOSITION FOR POLYMER MATERIALS, AND RESIN COMPOSITION

An object of the present invention is to provide an expansion ratio improver for a polymer material that can impart an excellent expansion ratio to polymer materials. Another object of the present invention is to provide a resin composition for obtaining a foam having a high expansion ratio and fine...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	AOYAGI, Seiichi
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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide an expansion ratio improver for a polymer material that can impart an excellent expansion ratio to polymer materials. Another object of the present invention is to provide a resin composition for obtaining a foam having a high expansion ratio and fine (dense) cells. An expansion ratio improver for a polymer material, comprising at least one member selected from the group consisting of a pyrazolone-based compound and a salt of the compound. A resin composition comprising component (a): polyethylene, component (b): a chemical foaming agent, and component (c): a pyrazolone-based compound, the resin composition containing 0.1 parts by mass to 50 parts by mass of component (b) and 0.1 parts by mass to 50 parts by mass of component (c) based on 100 parts by mass of component (a).