| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vinyl chloride resin sheet with a high durability by compounding a vinyl acetate-vinyl chloride copolymer resin with a Ca compd., a Zn compd., an epoxidized vegetable oil, a hydrotalcite compd., an ester compd., and aβ-diketone compd. SOLUTION: 100 pts.wt. resin component comprising a vinyl acetate-vinyl chloride copolymer having a vinyl acetate unit content of 3-15wt.% or a mixture of 20-95wt.% vinyl acetate-vinyl chloride copolymer and 80-5wt.% vinyl chloride resin having an average degree of polymn. of 500-1,000 is mixed with 0.01-2 pts.wt. Ca compd. (e.g. Ca stearate). 0.01-2 pts.wt. Zn compd. (e.g. Zn naphthenate), 0.1-2 pts.wt. epoxidized vegetable oil, 0.01-5 pts.wt. hydrotalcite compd. represented by the formula (wherein 2w+3x=y+2z; 2<=w<=6; and 2<=m<=4), 0.01-2 pts.wt. ester compd., and 0.01-1 pt.wt.β-diketone compd., kneaded, and calendered to give a 0.05-1mm-thick vinyl chloride resin sheet having a softening point of 50-80 deg.C.
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