RESIN COMPOSITION AND MOLDED BODY THEREOF
The present invention addresses the problem of providing: a resin composition having excellent hardness and spiral flow characteristics in a well-balanced manner; and a molded body formed from the resin composition. The resin composition according to the present invention contains: 50-94 parts by ma...
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Main Authors | , , , , |
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Format | Patent |
Language | English French Japanese |
Published |
11.01.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention addresses the problem of providing: a resin composition having excellent hardness and spiral flow characteristics in a well-balanced manner; and a molded body formed from the resin composition. The resin composition according to the present invention contains: 50-94 parts by mass of a crystalline propylene/ethylene block copolymer (A) that satisfies specific requirements; 1-25 parts by mass of an ethylene polymer (B) having a density of 915-980 kg/m3 and a melt flow rate (190 °C, 2.16 kg load) of 0.1-30 g/10 min; and 5-25 parts by mass of an inorganic filler (C) (where the total amount of the crystalline propylene/ethylene block copolymer (A), the ethylene-based polymer (B), and the inorganic filler (C) is 100 parts by mass).
La présente invention a pour but de procurer : une composition de résine présentant une excellente dureté et des caractéristiques d'écoulement en spirale bien équilibrées ; et un corps moulé constitué de la composition de résine. La composition de résine selon la présente invention contient : 50-94 parts by mass of a crystalline propylene/ethylene block copolymer (A) that satisfies specific requirements; 1-25 parts by mass of an ethylene polymer (B) having a density of 915-980 kg/m3 et un débit de fusion (190 °C, charge de 2,16 kg) compris entre 0,1 et 30 g/10 min ; et 5 à 25 parties en masse d'une charge inorganique (C) (la quantité totale du copolymère séquencé cristallin de propylène/éthylène (A), du polymère à base d'éthylène (B) et de la charge inorganique (C) étant de 100 parties en masse).
本発明の課題は、硬度およびスパイラルフロー特性にバランスよく優れる樹脂組成物、および該樹脂組成物から形成される成形体を提供することにある。 本発明の樹脂組成物は、特定要件を満たす結晶性プロピレン・エチレンブロック共重合体(A)50~94質量部と、密度が915~980kg/m3であり、メルトフローレート(190℃、2.16kg荷重)が0.1~30g/10minのエチレン系重合体(B)1~25質量部と、無機充填物(C)5~25質量部とを含む(ただし、結晶性プロピレン・エチレンブロック共重合体(A)、エチレン系重合体(B)、無機充填物(C)の合計を100質量部とする)。 |
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Bibliography: | Application Number: WO2023JP23764 |