The present invention provides a vinyl chloride resin composition for injection molding, including relative to 100 parts by mass of a vinyl chloride resin,
(a) 0.01 to 10 parts by mass of an organic acid calcium salt and/or an organic acid zinc salt,
(b) 0.01 to 10 parts by mass of a hydrotalcite compound,
(c) 0.01 to 10 parts by mass of a β-diketone compound, and
(d) 0.01 to 10 parts by mass of a polyol mixture,
wherein the polyol mixture of component (d) is a polyol mixture composed of pentaerithrytol and condensates thereof; when the degree of condensation of pentaerithritol is represented by n, the combined content of the pentaerithrytol and condensates thereof of n = 1 to 3 is 5 to 40% by mass relative to the overall amount of the polyol mixture.
本发明提供了一种用于注塑成型的
氯乙烯树脂组合物,其中包括相对于 100 质量份的
氯乙烯树脂、
(a) 0.01 至 10 质量份的有机酸
钙盐和/或有机酸
锌盐、
(b) 0.01 至 10 质量份的氢
滑石化合物、
(c) 0.01 至 10 质量份的
β-二酮化合物,和
(d) 0.01 至 10 质量份的多元醇混合物、
其中,(d)组分的多元醇混合物是由戊四醇及其缩合物组成的多元醇混合物;当戊四醇的缩合度用 n 表示时,相对于多元醇混合物的总量,n=1 至 3 的戊四醇及其缩合物的总含量为 5%至 40%(质量分数)。