RESIN COMPOSITION AND MOLDED BODY

To provide a resin composition having a good balance of excellent moldability, a low molding shrinkage ratio, chemical resistance, and impact resistance.SOLUTION: A resin composition comprises: a styrene-based block copolymer; a styrene-based resin other than the styrene-based block copolymer; and a...

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Main Authors FUKUI KENICHIRO, TAKAHASHI SHUNSAKU, HONJO AKISATO, TAKAHASHI GENSAKU, SAKAMOTO KENJI, WADA TAKUYA, WATANABE KOICHI
Format Patent
LanguageEnglish
Japanese
Published 08.07.2021
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:To provide a resin composition having a good balance of excellent moldability, a low molding shrinkage ratio, chemical resistance, and impact resistance.SOLUTION: A resin composition comprises: a styrene-based block copolymer; a styrene-based resin other than the styrene-based block copolymer; and a propylene-based resin having a melt flow rate (230°C, load 2.16 kgf) equal to or more than 3 g/10 min. The propylene-based resin is included in an amount of 35-65 mass% with respect to 100 mass% of the total of the styrene-based resin and the propylene-based resin.SELECTED DRAWING: None 【課題】成形性、低成形収縮率、耐薬品性および耐衝撃性にバランスよく優れる樹脂組成物を提供すること。【解決手段】スチレン系ブロック共重合体と、該スチレン系ブロック共重合体以外のスチレン系樹脂と、メルトフローレート（２３０℃、荷重２．１６ｋｇｆ）が３ｇ／１０分以上であるプロピレン系樹脂とを含み、前記プロピレン系樹脂を、前記スチレン系樹脂と前記プロピレン系樹脂との合計１００質量％に対し、３５〜６５質量％含む、樹脂組成物。【選択図】なし
Bibliography:Application Number: JP20190233098