润滑科技信息平台

专利摘要

公开了改进的有机抗磨添加剂组合物,其包含某些柠檬酸酯,例如包含柠檬酸盐低聚物和脂肪酸链烷醇酰胺的混合物。该组合在润滑剂中表现出优异的协同抗磨活性。本发明的组合物有利地允许人们减少经常用于润滑剂中的锌和磷的量,同时提高抗磨损性能并保持并且通常增强摩擦降低性能。 ......

基本信息

专利类型:
发明专利
申请/专利号:
EP2021841083
申请日期:
2021-12-13
专利申请人:
分类号:
C10M157/04
发明/设计人:
DEBLASE, FRANK J.
权利要求: 1. An antiwear additive composition comprising: (a) a citrate compound of formula II or a citrate compound of formula III or a mixture of citrate compounds of formula II and formula III, wherein: n is from 1 to 20; R is C1-18 alkyl; C1-18 alkyl substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or the heterocycle may be substituted by one or more C1-12 alkyl or alkyloxy; C2-18 alkyl interrupted by one or more -O-, carbonyl, carbonyloxy and/or substituted by OH; C2-18 alkyl interrupted by one or more -O-, carbonyl or carbonyloxy and substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; or a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; and R' is C2-18 alkylene; C2-18 alkylene interrupted by one or more -O-, carbonyl or carbonyloxy and/or substituted by OH, carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; or said alkylene, interrupted alkylene or substituted alkylene interrupted by a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; wherein each R and each R' may be the same or different from any other R or R'; and (b) a fatty acid alkanolamide of formula IV wherein n is 1 or 2; when n is 1, m is 1; when n is 2, m is 0, R1 is H or C1-12 alkyl, G is H or C1-6 alkyl, and R2 is selected from C7-23 alkyl or alkenyl; wherein the ratio by weight of the citrate component (a) to the fatty acid alkanolamide component (b) is from 8:1 to 1:8.2. The antiwear additive composition according to claim 1, wherein the composition comprises more than one citrate compound of formula III which differ by having different values of n.3. The antiwear additive composition according to claim 1, wherein component (a) further comprises a citrate compound of formula I wherein R is as described for formula II and III.4. The antiwear additive composition according to claim 3, wherein the additive composition comprises at least one citrate compound of formula I, at least one citrate compound of formula II, and at least one citrate compound of formula III, wherein n is from 1 to 5; R is C1-12 alkyl or C2-12 alkyl interrupted by one or more -O-, and R' is C2-12 alkylene, or said alkylene interrupted by one or more -O-.5. An antiwear additive composition comprising: (a) a citrate compound of formula I wherein R is a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; C1-6 alkyl substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or the heterocycle may be substituted by one or more C1-12 alkyl or alkyloxy; C6-18 alkyl interrupted by one or more -O-, carbonyl, or carbonyloxy and/or substituted by OH; or C6-18 alkyl interrupted by one or more -O-, carbonyl, or carbonyloxy and substituted by OH, carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; and (b) a fatty acid alkanolamide of formula IV wherein n is 1 or 2; when n is 1, m is 1; when n is 2, m is 0, R1 is H or C1-12 alkyl, G is H or C1-6 alkyl, and R2 is selected from C7-23 alkyl or alkenyl; wherein the ratio by weight of the citrate component (a) to the fatty acid alkanolamide component (b) is from 8:1 to 1:8.6. The antiwear additive composition according to any one of the preceding claims, wherein the fatty acid alkanolamide is a compound of formula V: wherein R1 is H or C1-12 , preferably C1-4 alkyl, and R2 is selected from C7-23 alkyl or alkenyl.7. The antiwear additive composition according to claim 6, wherein the fatty acid alkanolamide is a mixture of compounds of formula V, wherein about 15 to about 45% by weight of the fatty acid alkanolamide are compounds where R2 is C15 alkyl or alkenyl, about 40 to about 80% by weight of the fatty acid alkanolamide are compounds where R2 is C17 alkyl or alkenyl, and 0 to about 15% by weight of the fatty acid alkanolamide are compounds where R2 is C7-14, C16 or C18-19 alkyl or alkenyl.8. A lubricant composition comprising: A) a lubricating oil, B) from 0.1 to 5 wt%, based on the weight of the lubricant composition, of a citrate compound of formula II or a citrate compound of formula III or a mixture of citrate compounds of formula II and formula III, wherein: n is from 1 to 20; R is C1-18 alkyl; C1-18 alkyl substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or the heterocycle may be substituted by one or more C1-12 alkyl or alkyloxy; C2-18 alkyl interrupted by one or more -O-, carbonyl, carbonyloxy and/or substituted by OH; C2-18 alkyl interrupted by one or more -O-, carbonyl or carbonyloxy and substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; or a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; and R' is C2-18 alkylene; C2-18 alkylene interrupted by one or more -O-, carbonyl or carbonyloxy and/or substituted by OH, carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; or said alkylene, interrupted alkylene or substituted alkylene interrupted by a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; wherein each R and each R' may be the same or different from any other R or R'; and C) from 0.1 to 5 wt%, based on the weight of the lubricant composition, of a fatty acid alkanolamide of formula IV wherein n is 1 or 2; when n is 1, m is 1; when n is 2, m is 0, R' is H or C1-12 alkyl, G is H or C1-6 alkyl, and R2 is selected from C7-23 alkyl or alkenyl.9. The lubricant composition according to claim 8, wherein the ratio by weight of the citrate component B) to the fatty acid alkanolamide component C) is from 8:1 to 1:8.10. The lubricant composition according to claim 8, wherein the composition comprises more than one citrate compound of formula III which differ by having different values of n.11. The lubricant composition according to claim 8, further comprising a citrate compound of formula I wherein R is as described for formula II and III, and the wt% of all citrate compounds of formulas I, II and III combined is from 0.1 to 5 wt%, based on the weight of the lubricant composition.12. The lubricant composition according to claim 11, wherein the composition comprises at least one citrate compound of formula I, at least one citrate compound of formula II, and at least one citrate compound of formula III, wherein n is from 1 to 5; R is C1-12 alkyl or C2-12 alkyl interrupted by one or more -O-, and R' is C2-12 alkylene, or said alkylene interrupted by one or more -O-.13. A lubricant composition comprising: A) a lubricating oil, B) from 0.1 to 5 wt%, based on the weight of the lubricant composition, of a citrate compound of formula I wherein R is a carbocycle comprising 5 to 12 carbon atoms, or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; C1-6 alkyl substituted by a carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or the heterocycle may be substituted by one or more C1-12 alkyl or alkyloxy; C6-18 alkyl interrupted by one or more -O-, carbonyl, or carbonyloxy and/or substituted by OH; or C6-18 alkyl interrupted by one or more -O-, carbonyl, or carbonyloxy and substituted by OH, carbocycle comprising 5 to 12 carbon atoms or a heterocycle comprising 3 to 11 carbon atoms and one or more heteroatoms selected from O, S and N, wherein the carbocycle or heterocycle may be substituted by C1-12 alkyl or alkyloxy; and C) from 0.1 to 5 wt%, based on the weight of the lubricant composition, of a fatty acid alkanolamide of formula IV wherein n is 1 or 2; when n is 1, m is 1; when n is 2, m is 0, R1 is H or C1-12 alkyl, G is H or C1-6 alkyl, and R2 is selected from C7-23 alkyl or alkenyl, wherein the ratio by weight of the citrate component B) to the fatty acid alkanolamide component C) is from 8:1 to 1:8.14. The lubricant composition according to any one of claims 8 through 13, wherein the fatty acid alkanolamide is a compound of formula V: wherein R1 is H or C1-12 , preferably C1-4 alkyl, and R2 is selected from C7-23 alkyl or alkenyl.15. The lubricant composition according to claim 14, wherein the fatty acid alkanolamide is a mixture of compounds of formula V, wherein about 15 to about 45% by weight of the fatty acid alkanolamide are compounds where R2 is C15 alkyl or alkenyl, about 40 to about 80% by weight of the fatty acid alkanolamide are compounds where R2 is C17 alkyl or alkenyl, and 0 to about 15% by weight of the fatty acid alkanolamide are compounds where R2 is C7-14, C16 or C18-19 alkyl or alkenyl.