Stabilising compositions for lubricant base stocks and lubricant formulations are composed of a mixture of (a) at least one aromatic aminic amine antioxidant optionally blended with at least one hindered phenolic antioxidant and (b) at least one neutral organo phosphate or phosphite, optionally blended with at least one acid organo phosphate or phosphite. These stabilising composition mixtures are characterised by their stabilising capacity which is considerably higher than that of either the single antioxidants or the single phosphate or phosphite additives. These stabilising compositions can be used in all fields where the single components of the mixtures are generally used and where deterioration due to oxidation processes takes place.
用于润滑油基础油和润滑油配方的稳定组合物由以下混合物组成:(a) 至少一种芳香族
氨基胺
抗氧化剂,可选择与至少一种受阻
酚类抗氧化剂混合;(b) 至少一种中性有机
磷酸盐或
亚磷酸盐,可选择与至少一种酸性有机
磷酸盐或
亚磷酸盐混合。这些稳定剂混合物的特点是其稳定能力大大高于单一
抗氧化剂或单一
磷酸盐或
亚磷酸盐添加剂。这些稳定组合物可用于通常使用混合物中单一成分的所有领域,也可用于因氧化过程而发生劣化的领域。