| 摘要 |
PROBLEM TO BE SOLVED: To provide a foaming agent composition pellet from which a foamed molding being stable with excellent mechanical properties and surface appearance can be fabricated.SOLUTION: A foaming agent composition-granulated body contains 100 parts mass of a polyamide resin (A), 0.2-20 parts mass of halogenated lithium (B), and 3-30 parts mass of a foaming agent (C). A method for producing the foaming agent composition-granulated body comprises the steps of: throwing the polyamide resin (A) and the halogenated lithium (B) through a first supply port of a biaxial extruder; melt-kneading the thrown materials; throwing the foaming agent (C) through a second supply port positioned on the downstream side of the first supply port; and controlling the temperature of a portion from the second supply port to the tip of a screw and a die to be equal to or lower than the decomposition temperature of the foaming agent. The foaming agent composition-granulated body is used suitably in an electric/electronic equipment field, an automobile field, a mechanical field or the like. |
