Manufacturing method for resin composition containing fine paper powder

摘要

A resin composition containing fine paper powder used in molding is obtained by using a fully-inter0meshing type co-rotating twin-screw kneading extruder (10) having two material feeding ports (15 and 16) to knead a raw material containing a fine paper powder having an average particle diameter of 10 to 100 µm from 20 to 70 parts by weight and a thermoplastic resin from 30 to 80 parts by weight, a sum of the fine paper powder and the thermoplastic resin being 100 parts by weight, by feeding the thermoplastic resin through a main material feeding port (15) and the fine paper powder through a sub material feeding port (16).