| 摘要 |
PROBLEM TO BE SOLVED: To provide a copolymerization polyamide composition and a molded article having low molding condition dependence and excellent productivity, and excellent in rigidity after water absorption (water absorption rigidity) and appearance.SOLUTION: A polyamide resin composition contains (A) a copolymerized polyamide containing (a) an alicycle dicarboxylic acid unit, (b) a diamine unit having 8 or more carbon atoms, (c) at least one kind of a copolymerization component unit from following (c-1) to (c-3), (c-1) a dicarboxylic acid other than the alicycle dicarboxylic acid of above (a), (c-2) a diamine having less number of carbon atoms than the diamine of above (b), (c-3) lactam and/or an amino carboxylic acid, and satisfying a given requirement in terms of a crystallization peak temperature T, a glass transformation temperature T, a ratio of the number of carbon atoms and the number of amide groups (the number of carbon atoms/the number of amide groups), a melting peak temperature Tand a melting peak temperature T, and (B) at least one moldability modifier selected from a group consisting of a higher fatty acid, a higher fatty acid metal salt, a higher fatty acid ester and a higher fatty acid amide. |
