润滑科技信息平台

Gear oil additive composition and gear oil containing the same

专利摘要

Gear oil additive concentrates and lubricant compositions containing a combination of additives which minimize noise and vibration that occasionally develop in limited slip axles. The additive combinations include (i) an oil-soluble succinimide of the formula ##STR1## wherein R.sub.1 is alkyl or alkenyl having 8 to 50 carbon atoms, and R.sub.2, R.sub.3 and R.sub.4 are hydrogen atoms or alkyl or alkenyl groups having up to about 4 carbon atoms; and (ii) a boronated or non-boronated carboxylic derivative composition produced by reacting a substituted succinic acylating agent with (a) amine having at least one primary or secondary amino group in the molecule, or (b) at least one alcohol, or (c) a combination of (a) and (b). The substituent of the succinic acylating agent is derived from polyalkene having a number average molecular weight of about 500 to about 100,000. The additive concentrates and lubricant compositions are devoidd of any metal-containing component. ......

基本信息

专利类型:
发明专利
申请/专利号:
US07/480904
申请日期:
1990-02-16
专利申请人:
英国乙基石油添加剂有限公司
分类号:
["C10M133/00","C10M133/52","C10M141/00","C10M141/10","C10M141/12","C10N20/02","C10N20/04","C10N30/00","C10N40/04","C10N60/14","C10N70/00","C10M141/06"]
发明/设计人:
CAMPBELL, DONALD G. ， NORMAN, STEPHEN ， CONARY, GERGORY S.
权利要求: What is claimed is:1. A gear oil additive composition comprising:(i) at least one oil-soluble succinimide of the formula ##STR16## wherein R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is, independently, a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms; and(ii) at least one boronated carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with a reactant selected from the group consisting of (a) amine having at least one primary or secondary amino group in the molecule, (b) at least one alcohol, and (c) a combination of (a) and (b), the components of (c) being reacted with such substituted succinic acylating agent(s) simultaneously or sequentially in any order, and reacting the resultant product with a boron compound to form said boronated carboxylic derivative composition, such substituted succinic acylating agent(s) having a substituent group derived from polyalkene having a number average molecular weight of about 500 to about 100,000;said gear oil additive composition containing on a weight basis from 10 to 80% of component (i), and from 10 to 80% of component (ii), the total of (i) and (ii) being in the range of 20 to 90%;said gear oil additive composition being devoid of any metal-containing additive component.2. A composition as claimed in claim 1 wherein component (ii) is a boronated succinimide formed by reacting the substituted succinic acylating agent with alkylene polyamine and then reacting the resultant product with a boron compound to thereby form the boronated succinimide.3. A composition as claimed in claim 1 wherein R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are, independently, alkyl or alkenyl groups.4. A composition as claimed in claim 1 wherein R.sub.1 contains an average of 20 to 24 carbon atoms, and wherein R.sub.3 and R.sub.4 are both hydrogen atoms.5. A composition as claimed in claim 4 wherein R.sub.2 is a hydrogen atom.6. A composition as claimed in claim 1 wherein the proportions of (i):(ii) on a weight basis are in the range of from 2.5:1 to 1:2.5.7. A composition as claimed in claim 1 wherein the proportions of (i):(ii) on a weight basis are in the range of from 1:1 to 1.2:1.8. A composition as claimed in claim 1 further including a solvent oil.9. A composition as claimed in claim 1 further including a solvent oil and wherein the additive composition contains on a weight basis from 10 to 50% of component (i), from 10-50% of component (ii), and 40-70% of solvent oil, the total of components (i) and (ii) being in the range of 30-60%.10. A composition as claimed in claim 1 further including a solvent oil and wherein the additive composition contains on a weight basis from 10 to 35% of component (i), from 10-35% of component (ii), and 55-60% of solvent oil, the total of components (i) and (ii) being in the range of 40-45%.11. A composition as claimed in claim 1 characterized in that it further includes a solvent oil, in that R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are alkyl or alkenyl groups, and in that component (ii) is a boronated succinimide formed by reacting the substituted succinic acylating agent with alkylene polyamine and then reacting the resultant product with a boron compound to thereby form the boronated succinimide.12. A composition as claimed in claim 1 characterized in that it further includes a solvent oil, in that component (i) is predominantly a mixture of C.sub.20, C.sub.22, and C.sub.24 sec-alkenylsuccinimides made from an isomerized 1-olefin mixture containing on a weight basis no more than 3% of C.sub.18 alkene, 45-55% of C.sub.20 alkene, 31-47% of C.sub.22 alkene, 4-15% of C.sub.24 alkene, and no more than 1% of C.sub.26 alkene, and in that component (ii) is a boronated succinimide formed by reacting a polyisobutenyl substituted succinic acylating agent in which the polyisobutenyl substituent has a number average molecular weight in the range of 750 to 5,000 with alkylene polyamine represented by the formulawherein n is in the range of 2 to 3 and m is in the range of 0 to 10, and then reacting the resultant product with a boron compound to thereby form the boronated succinimide.13. A gear oil composition comprising a major amount of a gear oil base stock containing a sulfur additive complement, a phosphorus additive complement, and a nitrogen additive complement, in proportions such that the composition possesses a weight ratio of sulfur to phosphorus in the range of about 5:1 to about 40:1 and a weight ratio of nitrogen to phosphorus in the range of about 0.05:1 to about 2:1, said base oil additionally containing:(i) from about 0.01 to about 5% by weight of at least one oil-soluble succinimide of the formula ##STR17## wherein R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is, independently, a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms; and(ii) from about 0.01 to about 5% by weight of at least one boronated carboxylic derivative composition produced from at least one substituted succinic acylating agent and a reactant selected from the group consisting of (a) amine having at least one primary or secondary amino group in the molecule, (b) at least one alcohol, and (c) a combination of (a) and (b), the components of (c) being reacted with such substituted succinic acylating agent(s) simultaneously or sequentially in any order, wherein such substituted succinic acylating agent(s) has/have a substituent group derived from polyalkene having a number average molecular weight of about 500 to about 100,000;said gear oil composition being devoid of any metal-containing additive component.14. A composition as claimed in claim 13 wherein component (ii) is a boronated succinimide formed by reacting the substituted succinic acylating agent with alkylene polyamine and then reacting the resultant product with a boron compound to thereby form the boronated succinimide.15. A composition as claimed in claim 13 wherein R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are, independently, alkyl or alkenyl groups.16. A composition as claimed in claim 13 wherein R.sub.1 contains an average of 20 to 24 carbon atoms, and wherein R.sub.3 and R.sub.4 are both hydrogen atoms.17. A composition as claimed in claim 16 wherein R.sub.2 is a hydrogen atom.18. A composition as claimed in claim 13 wherein the proportions of (i):(ii) on a weight basis are in the range of from 2.5:1 to 1:2.5.19. A composition as claimed in claim 13 wherein the proportions of (i):(ii) on a weight basis are in the range of from 1:1 to 1.2:1.20. A composition as claimed in claim 13 characterized in that R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are alkyl or alkenyl groups, and in that component (ii) is a boronated succinimide formed by reacting the substituted succinic acylating agent with alkylene polyamine and reacting the resultant product with a boron compound to form the boronated succinimide.21. A composition as claimed in claim 13 characterized in that component (i) is predominantly a mixture of C.sub.20, C.sub.22, and C.sub.24 sec-alkenylsuccinimides made from an isomerized 1-olefin mixture containing on a weight basis no more than 3% of C.sub.18 alkene, 45-55% of C.sub.20 alkene, 31-47% of C.sub.22 alkene, 4-15% of C.sub.24 alkene, and no more than 1% of C.sub.26 alkene, and in that component (ii) is a boronated succinimide formed by reacting an polyisobutenyl succinic anhydride in which the polyisobutene substituent has a number average molecular weight in the range of 750 to 5,000 with alkylene polyamine represented by the formulawherein n is in the range of 2 to 3 and m is in the range of 0 to 10, and then reacting the resultant product with a boron compound to form said boronated succinimide.22. A gear oil additive composition comprising:(i) at least one oil-soluble succinimide of the formula ##STR18## wherein R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is, independently, a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms;(ii) at least one boronated carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with a reactant selected from the group consisting of (a) amine having at least one primary or secondary amino group in the molecule, (b) at least one alcohol, and (c) a combination of (a) and (b), the components of (c) being reacted with such substituted succinic acylating agent(s) simultaneously or sequentially in any order, wherein such substituted succinic acylating agent(s) has/have a substituent group derived from polyalkene having a number average molecular weight of about 700 to about 5,000; and(iii) diluent oil;said gear oil additive composition containing on a weight basis from 10 to 80% of component (i), from 10 to 80% of component (ii), and from 10 to 80% of component (iii), the total of (i) and (ii) being in the range of 20 to 90%;said gear oil additive composition being devoid of any metal-containing additive component.23. A composition as claimed in claim 22 wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.24. A composition as claimed in claim 22 wherein R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are, independently, alkyl or alkenyl groups; and wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.25. A composition as claimed in claim 22 wherein R.sub.1 contains an average of 20 to 24 carbon atoms, and wherein R.sub.3 and R.sub.4 are both hydrogen atoms; and wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.26. A composition as claimed in claim 22 wherein R.sub.1 contains an average of 20 to 24 carbon atoms, and wherein R.sub.2, R.sub.3 and R.sub.4 are hydrogen atoms; and wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.27. A composition as claimed in claim 22 wherein the proportions of (i):(ii) on a weight basis are in the range of from 2.5:1 to 1:2.5.28. A composition as claimed in claim 22 wherein the proportions of (i):(ii) on a weight basis are in the range of from 1:1 to 1.2:1.29. A composition as claimed in claim 22 characterized in that component (i) is predominantly a mixture of C.sub.20, C.sub.22, and C.sub.24 sec-alkenylsuccinimides made from an isomerized 1-olefin mixture containing on a weight basis no more than 3% of C.sub.18 alkene, 45-55% of .sub.20 alkene, 31-47% of C.sub.22 alkene, 4-15% of C.sub.24 alkene, and no more than 1% of C.sub.26 alkene, and in that component (ii) is a boronated polyisobutenyl succinimide.30. A composition as claimed in claim 22 further comprising an additive complement selected from (1) sulfur-containing additives, (2) phosphorus-containing additives, and (3) nitrogen-containing additives such that said composition possesses a weight ratio of sulfur to phosphorus in the range of about 5:1 to about 40:1 and a weight ratio of nitrogen to phosphorus in the range of about 0.05:1 to about 2:1, this nitrogen content being exclusive of the nitrogen of components (i) and (ii).31. A composition as claimed in claim 30 wherein the proportions of (i):(ii) on a weight basis are in the range of from 2.5:1 to 1:2.5.32. A composition as claimed in claim 30 wherein the proportions of (i):(ii) on a weight basis are in the range of from 1:1 to 1.2:1.33. A composition as claimed in claim 30 characterized in that component (i) is predominantly a mixture of C.sub.20, C.sub.22, and C.sub.24 sec-alkenylsuccinimides made from an isomerized 1-olefin mixture containing on a weight basis no more than 3% of C.sub.18 alkene, 45-55% of C.sub.20 alkene, 31-47% of C.sub.22 alkene, 4-15% of C.sub.24 alkene, and no more than 1% of C.sub.26 alkene, and in that component (ii) is a boronated polyisobutenyl succinimide of at least one polyalkylene polyamine.34. A gear oil composition comprising a major amount of a gear oil base stock containing a sulfur additive complement, a phosphorus additive complement, and a nitrogen additive complement, in proportions such that the composition possesses a weight ratio of sulfur to phosphorus in the range of about 5:1 to about 40:1 and a weight ratio of nitrogen to phosphorus in the range of about 0.05:1 to about 2:1, said base oil additionally containing:(i) from about 0.01 to about 5% by weight of at least one oil-soluble succinimide of the formula ##STR19## wherein R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is, independently, a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms; and(ii) from about 0.01 to about 5% by weight of at least one boronated carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with a reactant selected from the group consisting of (a) amine having at least one primary or secondary amino group in the molecule, (b) at least one alcohol, and (c) a combination of (a) and (b), the components of (c) being reacted with such substituted succinic acylating agent(s) simultaneously or sequentially in any order, and reacting the resultant product with a boron compound to form said boronated carboxylic derivative composition, such substituted succinic acylating agent(s) having a substituent group derived from polyalkene having a number average molecular weight of about 700 to about 5,000;said gear oil composition being devoid of any metal-containing additive component.35. A composition as claimed in claim 34 wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.36. A composition as claimed in claim 34 wherein R.sub.1 contains 14 to 30 carbon atoms and is represented by the formula R.sub.5 R.sub.6 CH-- wherein R.sub.5 and R.sub.6 are, independently, alkyl or alkenyl groups; and wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.37. A composition as claimed in claim 34 wherein R.sub.1 contains an average of 20 to 24 carbon atoms, and wherein R.sub.2, R.sub.3 and R.sub.4 are hydrogen atoms; and wherein said reactant (a) is at least one alkylene polyamine, said reactant (b) is at least one polyhydric alcohol, and said reactant (c) is a combination of at least one alkylene polyamine and at least one polyhydric alcohol.38. A composition as claimed in claim 34 wherein the polyalkene used in forming said substituted acylating agent is polyisobutene.39. A composition as claimed in claim 34 wherein the proportions of (i):(ii) on a weight basis are in the range of from 2.5:1 to 1:2.5.40. A composition as claimed in claim 34 wherein the proportions of (i):(ii) on a weight basis are in the range of from 1:1 to 1.2:1.41. A composition as claimed in claim 34 characterized in that component (i) is predominantly a mixture of C.sub.20, C.sub.22, and C.sub.24 sec-alkenylsuccinimides made from an isomerized 1-olefin mixture containing on a weight basis no more than 3% of C.sub.18 alkene, 45-55% of .sub.20 alkene, 31-47% of C.sub.22 alkene, 4-15% of C.sub.24 alkene, and no more than 1% of C.sub.26 alkene, and in that component (ii) is a boronated polyisobutenyl succinimide.42. A composition as claimed in claim 34 wherein said composition contains from about 0.1 to about 2% by weight of component (i) and from about 0.1 to about 2% by weight of component (ii).43. A composition as claimed in claim 34 wherein said composition contains from about 0.4 to about 0.6% by weight of component (i) and from about 0.5 to about 0.6% by weight of component (ii).44. A gear oil composition comprising a base oil having a viscosity in the range of SAE 50 to SAE 250 containing(i) from about 0.01 to about 5% by weight of at least one oil-soluble succinimide of the formula ##STR20## wherein R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is, independently, a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms; and(ii) from about 0.01 to about 5% by weight of at least one boronated carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with a reactant selected from the group consisting of (a) amine having at least one primary or secondary amino group in the molecule, (b) at least one alcohol, and (c) a combination of (a) and (b), the components of (c) being reacted with such substituted succinic acylating agent(s) simultaneously or sequentially in any order, and reacting the resultant product with a boron compound to form said boronated carboxylic derivative composition, such substituted succinic acylating agent(s) having a substituent group derived from polyalkene having a number average molecular weight of about 700 to about 5,000;said gear oil composition being devoid of any metal-containing additive component.45. A composition as claimed in claim 44 wherein said viscosity is in the range of from SAE 70W to SAE 140.