| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin extrusion molding of a vinyl chloride resin composition, with the ratio of petroleum-originated ingredients reduced, which is improved further in impact resistance and has high rigidity and a low linear thermal expansion coefficient and a coextrusion laminate.SOLUTION: An extrusion molding is composed of a vinyl chloride resin composition which comprises (A) 100 pts. mass of a vinyl chloride resin of an average degree of polymerization of 700-1,500, (B) 15-25 pts. mass of calcium carbonate powder of an average particle size of 1 μm or smaller and (C) 2-4 pts. mass of an impact resistance improver consisting of a chlorinated polyethylene, an MBS resin or an acrylic rubber, has a thickness of 2 mm or smaller and a Charpy impact strength of 20 kJ/mor higher and is suitable for interior substrate materials. |
