The invention relates to stabilizer compositions for polymers such as polyolefin polymers, which decrease a phosphorus based stabilizer content necessary to stabilize the polymer. The premixed stabilizer compositions include an antacid, an organic acid-metal salt, and a primary antioxidant such as a sterically-hindered phenolic compound, a sterically-hindered amine compound, a hydroxylamine compound, and combinations thereof. The premixed stabilizer may further include a portion of the phosphorus based stabilizer content necessary to stabilize the polymer. The invention also relates to a method for the preparation of the stabilized polymer compositions provided by the use thereof.
本发明涉及用于聚合物(如聚烯烃聚合物)的稳定剂组合物,该组合物降低了稳定聚合物所需的
磷基稳定剂含量。预混稳定剂组合物包括抗酸剂、有机酸
金属盐和一级
抗氧化剂,如立体受阻
酚类化合物、立体受阻
胺类化合物、
羟胺化合物及其组合。预混稳定剂可进一步包括稳定聚合物所需的部分
磷基稳定剂。本发明还涉及使用本发明提供的稳定聚合物组合物的制备方法。