申请人:ETHYL PETROLEUM ADDITIVES, INC.
公开号:EP0459656A1
公开(公告)日:1991-12-04
Gear oils and gear oil additive concentrates of enhanced positraction performance are described. They comprise: (i) at least one oil-soluble sulfur-containing extreme pressure or antiwear agent; (ii) at least one oil-soluble amine salt of a partial ester of an acid of phosphorus; and (iii) at least one oil-soluble succinimide of the formula
where R₁ is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R₂, R₃ and R₄ is a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms. These compositions preferably contain one, more preferably two, and most preferably all three of the following additional components: (iv) at least one amine salt of a carboxylic acid; (v) at least one nitrogen-containing ashless dispersant; and (vi) at least one trihydrocarbyl ester of a pentavalent acid of phosphorus.
所述齿轮油和齿轮油添加剂浓缩物具有增强的正曳引性能。它们包括:(i) 至少一种油溶性含硫极压剂或抗磨剂;(ii) 至少一种磷酸部分酯的油溶性胺盐;(iii) 至少一种油溶性琥珀酰亚胺,其式为
其中 R₁ 是平均具有 8 至 50 个碳原子的烷基或烯基,R₂、R₃ 和 R₄ 各为氢原子或平均具有最多约 4 个碳原子的烷基或烯基。这些组合物最好含有一种,更优选两种,最优选全部三种下列附加成分:(iv) 至少一种羧酸胺盐; (v) 至少一种含氮无灰分散剂;以及 (vi) 至少一种五价磷酸三烃基酯。