VINYL CHLORIDE RESIN COMPOSITION IN WHICH COLORING IS SUPPRESSED DURING HIGH-TEMPERATURE USE

PROBLEM TO BE SOLVED: To provide a coloring suppression method which has a stable effect from initial coloring to long-term coloring, and can stably suppress coloring under high temperature, and to provide a vinyl chloride resin composition in which coloring is suppressed during high-temperature use...

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Bibliographische Detailangaben
Hauptverfasser:	TSUJI TAIKI, MIYAZAKI KENICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a coloring suppression method which has a stable effect from initial coloring to long-term coloring, and can stably suppress coloring under high temperature, and to provide a vinyl chloride resin composition in which coloring is suppressed during high-temperature use using the same.SOLUTION: A vinyl chloride resin composition contains a specific epoxy compound and a specific zinc compound, where a content of the zinc compound is set in a specific range to suppress coloring of the vinyl chloride resin molding during molding and high-temperature use, and a vinyl chloride resin composition can be obtained that is suitable as a raw material of the vinyl chloride resin molding in which coloring during high-temperature use is suppressed using the same. 【課題】本発明は、初期着色から長期的な着色まで安定した効果を有し、特に高温下でも安定的に着色を抑制できる着色抑制方法及びその方法を用いた高温使用時等において着色の抑制された塩化ビニル系樹脂組成物を提供することを目的とする。【解決手段】特定のエポキシ化合物と特定の亜鉛化合物を含有してなり、更に該亜鉛化合物の含有量を特定の範囲にすることにより、塩化ビニル系樹脂成形体の成形加工時や高温使用時の着色が抑制されることを見出し、該方法を用いることにより高温使用時の着色の抑制された塩化ビニル系樹脂成形体の原料として好適な塩化ビニル系樹脂組成物を得ることが可能となった。