| 摘要 |
PURPOSE:A vinyl chloride resin composition having improved non-migration even at high temperature and high humidity and thermal aging resistance, obtained by using an polyester resin consisting of a lactone polymer containing side chains as a plasticizer for vinyl chloride resin. CONSTITUTION:(A) 100pts.wt. vinyl chloride resin containing >=70wt% vinyl chloride, obtained by polymerizing vinyl chloride or the vinyl chloride and a comonomer (vinyl acetate, methyl acrylate, etc.) copolymerizable with the vinyl chloride is blended with (B) 25-400pts.wt. polyester resin having >=3,000 weight average molecular weight, consisting of a lactone containing side chain or a hydroxycarboxylic acid corresponding to the lactone, preferably poly-beta- methyl-delta-valerolactone to give a vinyl chloride resin composition. |
