Patent ID: 7687562
Filing Date: 2010-03-30
Classification: B60K,C08G,C08K,C08L

Abstract:
1. A polyamide resin composition comprising m-xylylenediamine (MXDA) as a diamine component and adipic acid (AA) as a dicarboxylic acid component, wherein the polyamide resin composition has: a content of phosphorus atoms (P) and sodium atoms (Na) satisfying the following equations (3) and (4): and a back pressure increasing coefficient K* satisfying the following equation (1): wherein K* represents a back pressure increasing coefficient expressed by the following equation: wherein ΔP (MPa) represents a difference between an initial secondary pressure of a gear pump and a secondary pressure thereof after a lapse of T (hr); T (hr) represents a period of time of filtering the polyamide resin composition with a filter; Q (kg/hr) represents a discharge amount of the polyamide resin composition; S (cm