| 摘要 |
PROBLEM TO BE SOLVED: To improve the transparency of the vinyl chloride resin film that will be markedly worsened, when tris(nonylphenyl) phosphite that releases environmental hormone is stopped using as a plasticizer, in the food-packaging vinyl chloride resin composition. SOLUTION: The objective vinyl chloride resin composition for food package is obtained by mixing (a) a thermally molten mixture prepared by adding zinc salts of oleic acid and/or ricinoleic acid to a mixture of calcium salt of olefin acid with calcium salts of ricinoleic acid and benzoic acid, further adding epoxidized soybean oil or epoxidized linseed oil and (b) a thermally molten mixture prepared by adding phosphoric acid or phosphorous acid to tridecyl polyoxyethylene (4-10) phosphate into a vinyl chloride resin. |
