PROBLEM TO BE SOLVED: To provide a vinyl chloride resin composition excellent in extrusion tubular molding property, attachment resistance during steam sterilization of a molded tube with a wound state by using so-called high pressure stream sterilization device at a temperature of 121°C, and kink resistance and capable of providing a tube suitable for medical applications.SOLUTION: There is provided a vinyl chloride resin composition containing 100 pts.mass of (a) vinyl chloride resin and 15 to 150 pts.mass of (b) cyclohexane-1,2-dicarboxylic acid di(isononyl)ester with a cis isomer of 90 to 100 mol% and a trans isomer of 10 to 0 mol%, obtained by hydrogenation of diisononyl phthalate ester of cas No.28553-12-0.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】本発明の課題は、押出チューブ成形性、成形されたチューブが巻状態で、所謂高圧蒸気滅菌器を用いて、温度121℃において、蒸気滅菌された場合の耐くっつき性、及び耐キンク性に優れ、医療用途に好適なチューブを得ることのできる、塩化ビニル系樹脂組成物を提供すること。【解決手段】成分(a)塩化ビニル系樹脂 100質量部;及び成分(b)casNo.28553-12-0のフタル酸ジイソノニルエステルを水素添加して得られるシス異性体90~100モル%、トランス異性体10~0モル%のシクロヘキサン-1,2-ジカルボン酸ジ(イソノニル)エステル 15~150質量部;を含む医療用塩化ビニル樹脂組成物。【選択図】なし
