CHEMICAL RESISTANCE IMPROVER

To provide a chemical resistance improver that gives a thermoplastic resin excellent chemical resistance.SOLUTION: A chemical resistance improver (Z) contains a block polymer (A) containing a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as constitutional units. Prefera...

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Bibliographische Detailangaben
Hauptverfasser:	HATTORI MASANORI, HIGUCHI SHINTARO, NAGAI AYAKA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a chemical resistance improver that gives a thermoplastic resin excellent chemical resistance.SOLUTION: A chemical resistance improver (Z) contains a block polymer (A) containing a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as constitutional units. Preferably, the weight ratio of the hydrophobic polymer (a) block and the hydrophilic polymer (b) block [(a)/(b)] is 10/90-80/20. A chemical resistant resin composition (Y) contains the chemical resistance improver (Z) and a thermoplastic resin (E).SELECTED DRAWING: None 【課題】本発明の目的は、熱可塑性樹脂に優れた耐薬品性を付与する耐薬品性向上剤を提供することにある。【解決手段】本発明は、疎水性ポリマー（ａ）のブロックと親水性ポリマー（ｂ）のブロックとを構成単位として有するブロックポリマー（Ａ）を含有してなる耐薬品性向上剤（Ｚ）である。また、前記疎水性ポリマー（ａ）のブロックと、親水性ポリマー（ｂ）のブロックの重量比［（ａ）／（ｂ）］が１０／９０～８０／２０であることが好ましい。耐薬品性向上剤（Ｚ）と、熱可塑性樹脂（Ｅ）とを含有してなる耐薬品性樹脂組成物（Ｙ）。【選択図】なし