METHOD FOR PRODUCING HEAT-RESISTANT POLYAMIDE RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a polyamide resin composition giving a molded article having uniform heat-resistance durability and high reliability by homogeneously dispersing a copper compound as a heat-stabilizing agent into a polyamide resin in the compounding step or a molding step. SOLUTION: The heat-resistant polyamide resin composition is produced by dissolving the copper compound as a heat-stabilizing agent into caprolactam and compounding the obtained solution into a polyamide resin or dissolving the copper compound into caprolactam, adding water to the solution and compounding the water-solution to the polyamide resin. The copper compound is highly uniformly dispersed in the polyamide by the method to obtain the heat-resistant polyamide resin composition having suppressed fluctuation of the durability between individual molded articles or between the parts of one molded article. COPYRIGHT: (C)2004,JPO