| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vinyl chloride resin composition and a molding using the same to give such a molding that has good appearance and uniform foam cell that does not depend on forming conditions, while the cost is suppressed by using a larger amount of filler than conventional ones. <P>SOLUTION: Vinyl chloride resin composition for expansion molding includes 100 pts.mass of (a), 1 to 25 pts.mass of (b), 20 to 80 pts.mass of (c), and 0.5 to 10 pts.mass of (d), wherein (a) is a vinyl chloride resin having an average degree of polymerization of 300 to 5,000, (b) is a powder processing aid for expansion molding that is given by polymerizing 50 to 80 mass% of methyl methacrylate, 20 to 50 mass% of alkyl methacrylate having an alkyl group having 3 to 5 carbons, and 0 to 20 mass% of other copolymerizable monomers, (c) is an inorganic filler, and (d) is a thermally-degradable forming agent. <P>COPYRIGHT: (C)2012,JPO&INPIT |
