The invention provides a composition comprising:
(A) at least one dicarboxylic acid or anhydride or at least one ammonium or metal salt of the dicarboxylic acid or anydride; and
(B) at least one compound represented by the formula
wherein R₂, R₃, R₄ and R₅ are each independently hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, polyalkoxyalkyl or hydroxypolyalkoxyalkyl; and R₁ is a hydrocarbyl group. In another embodiment, the compositions include (C) at least one acid, or ammonium or metal salt of the acid represented by the formula:
wherein R₆, R₇, R₈ and R₉ are each independently hydrogen or hydrocarbyl groups; and n is a number from 1 to about 10;
(D) at least one ester-salt derived from at least alkyl or alkenyl succinic acid or anhydride of about 8 to about 28 carbon atoms and at least one alkanol amine;
or mixtures of (C) and (D).
The invention further provides for concentrates and functional fluids containing the above corrosion-inhibitors.
本发明提供了一种组合物,其中包括
(A) 至少一种二
羧酸或酸酐或至少一种二
羧酸或酸酐的
铵盐或
金属盐;以及
(B) 至少一种由式表示的化合物
其中 R₂、R₃、R₄ 和 R₅ 各自独立地为氢、烷基、羟基烷基、多羟基烷基、多烷氧基烷基或羟基多烷氧基烷基;且 R₁ 为烃基。在另一个实施方案中,组合物包括 (C) 至少一种酸,或由式表示的酸的
铵盐或
金属盐:
其中 R₆、R₇、R₈ 和 R𠢙 各自独立地为氢或烃基,n 为 1 至约 10 的数字;
(D) 至少一种由至少约 8 至约 28 个碳原子的烷基或烯基
琥珀酸或酸酐和至少 一种烷醇胺衍生的酯盐;
或 (C) 和 (D) 的混合物。
本发明进一步提供了含有上述缓蚀剂的浓缩物和功能液。