VINYL CHLORIDE POLYMER COMPOSITION, MANUFACTURING METHOD THEREOF, AND MOLDING FORMED THEREFROM

摘要

PROBLEM TO BE SOLVED: To provide a vinyl chloride polymer composition which at a long-term use, while maintaining high elastic modulus characteristic of a vinyl chloride polymer and without damaging tensile elongation characteristics, gives excellent toughness in such breakdown mode as crack propagation, to provide its manufacturing method, and to provide a molding obtained from the composition. SOLUTION: In the composition (A) the vinyl chloride polymer has an average degree of polymerization of 600 or more, (B) a stratified swelling silicate dispersed in the composition has an average layer thickness of 0.5-50 nm and an average aspect ratio (ratio of layer length and layer thickness) of 10 or more, and (C) the stratified swelling silicate leaves 0.05-0.7 wt.% of the composition as the residue when the composition is completely burned at 950°C. COPYRIGHT: (C)2003,JPO