| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester-based plasticizer with high oil resistance, and to provide a vinyl chloride-based resin composition containing the same. SOLUTION: The polyester-based plasticizer is 500-10,000 mPa s in viscosity at 25°C, being produced from a 4-8C aliphatic dibasic acid and a dihydric alcohol, wherein the dihydric alcohol is a crude 1,2-butanediol containing at least acetoxyhydroxybutane or diacetoxybutane. In this plasticizer, the terminals are blocked with a hydroxy group and an acetate residue, wherein the terminal blocked rate for the acetate residue is 20-80%. The vinyl chloride-based resin composition contains 10-200 pts.wt. of the above plasticizer based on 100 pts.wt. of a vinyl chloride-based resin. COPYRIGHT: (C)2008,JPO&INPIT
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