PROPYLENE POLYMER FOR CLEANING INSIDE OF EXTRUDER, PELLET FOR CLEANING INSIDE OF EXTRUDER AND CLEANING METHOD OF INSIDE OF EXTRUDER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a cleaning method of the inside of an extruder with high cleaning effect and a propylene polymer and a pellet for cleaning the inside of the extruder to realize the same.;SOLUTION: There are provided a propylene polymer for cleaning the inside of an extruder satisfying (1), a pellet for cleaning the inside of the extruder including the same and a cleaning method of the inside of the extruder using the same. Where, (1) is expressed that a melting point (Tm-D) is 0-120°C, which is defined as a peak top observed on the highest temperature side of a melting endotherm curve obtained by increasing the temperature of a sample at 10°C/min after holding in a nitrogen atmosphere at -10°C for 5 minutes using a differential scanning calorimeter (DSC).;COPYRIGHT: (C)2015,JPO&INPIT