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公开(公告)号：EP3932975A1
公开(公告)日：2022-01-05
申请号：EP20762811.6
申请日：2020-02-19
申请人： Kuraray Co., Ltd.
发明人： SEKIGUCHI, Kenji
摘要： Disclosed are: a tube containing a layer that contains 60 to 80% by mass of a semi-aromatic polyamide and 15 to 40% by mass of an elastomer modified with an unsaturated compound having at least one selected from a carboxy group and an acid anhydride group, wherein the layer has a phase-separated structure containing a phase (A) that contains the semi-aromatic polyamide, and a phase (B) that contains the elastomer, and the phase (A) is a continuous phase and the phase (B) is a disperse phase dispersed in the phase (A), and in a cross-sectional image of the layer as observed with an electron microscope, the average number of the phase (B) having a major axis diameter of 2 µm or more and existing per 100 square µm is 1/100 µm 2 or less; and a polyamide resin composition prepared by melt-kneading a semi-aromatic polyamide and an elastomer modified with an unsaturated compound having at least one selected from a carboxy group and an acid anhydride group, wherein the total concentration of the carboxy group and the acid anhydride group in 1 g of the elastomer is 85 to 250 µeq/g.
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公开(公告)号：EP4455220A1
公开(公告)日：2024-10-30
申请号：EP22911165.3
申请日：2022-12-19
申请人： Kuraray Co., Ltd.
摘要： Provided are a polyamide composition, which has high moldability, excellent heat resistance, and toughness, and a molded article containing the polyamide composition. The polyamide composition contains a polyamide (A) and a polyolefin (B), and in which the polyamide (A) contains a diamine unit (X) and a dicarboxylic acid unit (Y), the diamine unit (X) contains 0.1 mol% or more and less than 36 mol% of a diamine unit (X1), the diamine unit (X1) is a constituent unit derived from an aliphatic diamine, wherein the aliphatic diamine has 6 to 10 carbon atoms, the aliphatic diamine having an alkyl group having 2 or 3 carbon atoms bonded to a carbon atom at 2-position when a carbon atom to which any one of two amino groups is bonded is taken as 1-position, and a content of the polyolefin (B) in the polyamide composition is 2% by mass or more and less than 40% by mass.
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