Patent ID: 8273431
Filing Date: 2012-09-25
Classification: B29B,B32B,C08K,C08L,Y10T

Abstract:
1. A polyamide resin composition comprising: a resin component containing a polyamide (X) obtained through melt polycondensation of a diamine component containing 70% by mol or more of m-xylylenediamine and a dicarboxylic acid component containing 70% by mol or more of an α,ω-linear aliphatic dicarboxylic acid, and a fatty acid metallic salt having from 10 to 50 carbon atoms, wherein the polyamide (X) has been obtained through melt polycondensation of the diamine component and the dicarboxylic acid component in the presence of both a phosphorus atom-containing compound and an alkali metal compound (C), the polyamide (X) contains the phosphorus atom-containing compound in a concentration of from 50 to 400 ppm in terms of phosphorus atom, and has a ratio represented by an expression: (in the expression, M1 represents the total molar number of the fatty acid metallic salt in the polyamide resin composition, and M2 represents the molar number of the phosphorus atom-containing compound in the polyamide resin composition) of from 0.05 to 0.5, and a ratio (molar number of the alkali metal compound (C))/(molar number of the phosphorus atom-containing compound) is from 0.5 to 1.