POLYMERIZATION FOR CAST POLYAMIDE RESIN

摘要

PURPOSE:To provide a method for the polymerization for a cast polyamide resin, designed to enable said polymerization by supplying safly a specified amount of an anionic polymerization catalyst into a lactam melt. CONSTITUTION:When a polymerizable lactam liquor prepared by supplying at least an anionic polymerization catalyst and an anionic polymerization initiator into a lactam melt is to be subjected to anionic polymerization in a mold, a solid product obtained by compressing a powdery anionic polymerization catalyst is used as the catalyst and this solid product is cut and put into the lactam melt.