申请人:Afton Chemical Corporation
公开号:EP1840194A1
公开(公告)日:2007-10-03
A gear fluid composition for extreme pressure applications. The composition includes a base oil component and a friction modifier mixture. The mixture is provided by an alkyl phosphonic acid diester of the formula:
wherein R1 is a hydrocarbyl group containing from about 8 to about 24 carbon atoms, R2 and R3 are selected from a hydrocarbyl group containing from about 1 to about 8 carbon atoms, an alkyl phosphonic acid monoester of the formula
wherein R4 is a hydrocarbyl group containing from about 8 to about 24 carbon atoms, R5 is hydrogen or hydrocarbyl group containing from about 1 to about 8 carbon atoms, and an amine salt of a partial ester of phosphoric acid represented by the formula
wherein each of R6 and R8 is a hydrocarbyl group, and R7 is hydrogen or a hydrocarbyl group, and wherein the ratio of (i) to (ii) ranges from about 3 to about 5.5.
一种用于极压应用的齿轮油组合物。该组合物包括基础油成分和摩擦改进剂混合物。该混合物由式如下的烷基膦酸二酯提供:
其中 R1 是含有约 8 至约 24 个碳原子的烃基,R2 和 R3 选自含有约 1 至约 8 个碳原子的烃基,式中的烷基膦酸单酯类为
其中 R4 是含有约 8 至约 24 个碳原子的烃基,R5 是氢或含有约 1 至约 8 个碳原子的烃基,以及式 2 所表示的磷酸部分酯的胺盐。
其中 R6 和 R8 各为烃基,R7 为氢或烃基,且(i)与(ii)的比例范围为约 3 至约 5.5。