THERMOPLASTIC RESIN COMPOSITION CONTAINING ADDITIVE AND PROCESSING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a processing method wherein an additive is mixed and kneaded afresh after an unnecessary additive is separated and removed from a thermoplastic resin composition containing the additive, and a resin obtained in such a way. SOLUTION: The thermoplastic resin composition containing the additive contains the additive obtained by using an extruder. In the processing method thereof, at least a part of an additive component A is separated and removed from the thermoplastic resin composition in a first kneading extracting zone having at least one or more pairs of injection ports and discharge ports of an extracting solvent for the additive component A and then an additive component B is melted and kneaded in a second kneading zone having a supply port of the additive component B, so as to perform molding. COPYRIGHT: (C)2004,JPO