To provide a polyamide resin composition which can suppress lowering of tensile strength of the polyamide resin composition while improving flowability in injection molding.SOLUTION: A polyamide resin composition contains a polyamide resin (A) having a melting point of 280°C or higher, 0.1-30 pts.mass of a fatty acid metal salt (B) with respect to 100 pts.mass of the polyamide resin (A), and 0.1-30 pts.mass of a lubricant (C). The polyamide resin (A) includes a constitutional unit derived from 20-100 mol% of a terephthalic acid, 0-80 mol% of a constitutional unit derived from an aromatic dicarboxylic acid other than the terephthalic acid, and a constitutional unit derived from aliphatic diamine or alicyclic diamine. The lubricant (C) contains aliphatic diamide (C1) obtained by reaction of a saturated aliphatic monocarboxylic acid having 10 to 30 carbon atoms in the main chain, and aliphatic diamine having 2 to 12 carbon atoms in the main chain.SELECTED DRAWING: None

    【課題】射出成形時の流動性を向上させつつ、ポリアミド樹脂組成物の引張強度の低下を抑制できる、ポリアミド樹脂組成物を提供すること。【解決手段】本開示のポリアミド樹脂組成物は、融点が280℃以上であるポリアミド樹脂(A)と、ポリアミド樹脂(A)100質量部に対して、0.1~30質量部の脂肪酸金属塩(B)と、0.1~30質量部の滑剤(C)とを含む。ポリアミド樹脂(A)は、20~100モル%のテレフタル酸に由来する構成単位と、0~80モル%のテレフタル酸以外の芳香族ジカルボン酸に由来する構成単位と、脂肪族ジアミン又は脂環族ジアミンに由来する構成単位とを含む。滑剤(C)は、主鎖の炭素数が10~30である飽和脂肪族モノカルボン酸と、主鎖の炭素数が2~12である脂肪族ジアミンとを反応させて得られる脂肪族ジアミド(C1)を含む。【選択図】なし


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    Title :

    POLYAMIDE RESIN COMPOSITION, AND MOLDED BODY


    Additional title:

    ポリアミド樹脂組成物、及び成形体


    Contributors:

    Publication date :

    2023-10-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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