composição de resina de poliamida e produto moldado

摘要

Disclosed is an m-xylene group-containing polyamide resin composition having excellent gas barrier properties and heat aging resistance, which contains (A) a polyamide composed of a diamine unit containing 30 % by mole or more of an m-xylylenediamine unit and a dicarboxylic acid unit and (B) an aromatic secondary amine based compound and has an oxygen permeability coefficient of not more than 1 cc·mm/m 2 ·day·atm at 23°C and 75 % RH.