| 摘要 |
PURPOSE:To obtain a resin composition which is substantially free of blushing and has excellent light stability, by incorporating a lead stabilizer in combination with a boric acid ester having a hydrogenated aryl residues into a halogen- containing resin. CONSTITUTION:A halogen-containing resin is stabilized by incorporating therein a lead stabilizer in combination with a boric acid ester having at least one hydrogenated aryl residue. Halogen-containing resins to be stabilized are a vinyl chloride resin, a vinyl chloride-vinyl acetate copolymer, a vinyl chloride-ethylene- vinyl acetate copolymer, and a polymer blend of a vinyl chloride resin and other polymers. The examples of lead stabilizers include lead stearate, white lead, and basic lead silicate. Usually, amounts of additives to be incorporated based on 100pts.wt. halogen-containing resin are 1-10pts.wt. lead stabilizer, and 0.05- 5pts.wt. boric acid ester.
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