To provide a semi-aromatic polyamide resin which has a high level of residence stability, hot-water resistance and chemical resistance and is also excellent in adhesive properties to and compatibility with other resins and the like.
The semi-aromatic polyamide resin comprises: dicarboxylic acid units in which 50 to 100 mol% of the dicarboxylic acid units are aromatic dicarboxylic acid units; and diamine units in which 60 to 100 mol% of the diamine units are aliphatic diamine units having 9 to 13 carbon atoms. Furthermore, at least 10% of terminal groups of molecular chains of the polyamide resin are blocked with a terminal-blocking agent, and the amount of terminal amino groups of the molecular chains is 60 μeq/g or more and 120 μeq/g or less. In addition, [NH2]/[COOH] ≥6 is satisfied, where [NH2] (μeq/g) represents the amount of the terminal amino groups and [COOH] (μeq/g) represents the amount of terminal carboxyl groups.
KIKUCHI HIROBUMI
KASHIWAMURA TSUGIFUMI
YAMASHITA TAKASHI
YAMAZAKI YOKI
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