| 摘要 |
[PROBLEMS] To provide a semi-aromatic polyamide resin having high residence stability, hot water resistance and chemical resistance and also having excellent adhesion property to and compatibility with other resin or the like. [MEANS FOR SOLVING PROBLEMS] The semi-aromatic polyamide resin has dicarboxylate units in which aromatic dicarboxylate units comprise 50 to 100 mol% of the dicarboxylate units and diamine units in which aliphatic diamine units having 9 to 13 carbon atoms comprises 60 to 100 mol% of the diamine units. In the resin, at least 10% of the terminal groups present in the molecular chain are end-capped with an end-capping agent, and the amount of the terminal amino groups present in the molecular chain falls within the range from 60 mu-equivalents/g to 120 mu-equivalents/g inclusive and satisfies the equation: [NH2]/[COOH]>=6 wherein [NH2] (mu-equivalent/g) represents the amount of the terminal amino groups and [COOH] (mu-equivalent/g) represents the amount of the terminal carboxyl groups. |
