Patent ID: 6444739
Filing Date: 2002-09-03
Classification: C08G,C08K

Abstract:
A polyamide resin composition comprising:100 parts by mass of a copolyamide resin (A) which is produced by polycondensing a diamine component (a) comprising 70 to 100 mol % of a diamine component (I) and 30 to 0 mol % of a diamine component (II) with a dicarboxylic acid component (b), the diamine component (I) comprising 30 to 70 mol % of trans-1,4-bis(aminomethyl)cyclohexane and 70 to 30 mol % of cis-1,4-bis(aminomethyl)cyclohexane with the combined molar percentages of the cis-trans isomers being 100 mol %, the diamine component (II) comprising p-xylylenediamine and/or hexamethylenediamine, and the dicarboxylic acid component (b) comprising 70 mol % or more of adipic acid; and 1 to 30 parts by mass of at least one nucleating agent for crystallization (B) selected from the group consisting of an inorganic nucleating agent and an organic nucleating agent, the inorganic nucleating agent being a talc powder or a ceramic particle, and the organic nucleating agent being a crystalline resin having a half-crystallization time of 30 sec or less when measured at 160Â° C. by depolarized light intensity method.