Claims
- 1. A composition comprising a major amount of a lubricating or fuel oil and a hydrocarbon soluble V.I. improver--dispersant ionic polymer having a number average molecular weight in the range of 5,000 to 1,000,000 formed by sulfonating an aliphatic C.sub.2 to C.sub.50 olefin polymer with a non-chlorine-containing sulfonating agent to a level of about 1 to 60 milliequivalents of SO.sub.3 H groups per 100 grams of sulfonated polymer, said sulfonated polymer being at least partly neutralized with a neutralizing agent selected from the group consisting of ammonia, ammonia salts and amines; wherein when said composition comprises a major amount of said lubricating oil, said composition contains about 0.01 to 10 wt. % of said ionic polymer; and wherein when said composition comprises a major amount of said fuel, said composition contains 0.001 to 0.5 wt. % of said ionic polymer.
- 2. A composition according to claim 1 wherein said olefin polymer comprises a major weight proportion of C.sub.2 to C.sub.18 aliphatic olefin.
- 3. A composition according to claim 1, wherein said olefin polymer comprises about 30 to 84.5 mole % ethylene, about 15 to 69.5 mole % C.sub.3 to C.sub.18 alpha olefin and about 0.5 to 20 mole % of C.sub.5 to C.sub.14 diolefin, and has a number average molecular weight in the range of about 10,000 to 200,000 and is sulfonated to contain a sulfur content of about 0.03 to about 1.44 wt. % sulfur, wherein at least 25 mole % of the sulfonic acid units are neutralized to form said ionic polymer containing about 0.005 to 2.5 wt. % nitrogen.
- 4. A composition according to claim 3, wherein said sulfonated polymer is 50 to 100% neutralized with an amine of 2 to 60 total carbon atoms and 1 to 12 nitrogen atoms.
- 5. A composition according to claim 3, wherein said sulfonated polymer is 50 to 100% neutralized with ammonia or ammonium salt.
- 6. A composition according to claim 1, wherein said composition comprises a major amount of mineral lubricating oil and about 0.01 to 10 wt. % of said ionic polymer having a number average molecular weight of 10,000 to 200,000.
- 7. A composition according to claim 1, wherein said ionic polymer is formed from an elastomeric polymer selected from the group consisting of ethylene-propylene-diene terpolymers, and butyl rubber.
- 8. A composition according to claim 3, wherein said ionic polymer is a sulfonated ethylene-propylene-diene terpolymer.
- 9. A composition according to claim 8, wherein said sulfonated polymer is neutralized with a poly(ethyleneamine).
- 10. A composition according to claim 8, wherein said sulfonated polymer is neutralized with a hydroxy amine.
- 11. A composition according to claim 10, wherein said hydroxyamine is trishydroxymethylaminomethane.
- 12. A composition according to claim 8, wherein said amine is triethylamine.
- 13. A composition according to claim 10 wherein said hydroxy amine is 2,2',2" nitrilotriethanol.
- 14. A composition according to claim 7, wherein said ionic polymer is a sulfonated butyl rubber.
- 15. A composition according to claim 14 wherein said sulfonated polymer is neutralized with a poly(ethyleneamine).
- 16. A composition according to claim 14, wherein said sulfonated polymer is neutralized with a hydroxy amine.
- 17. A composition according to claim 14, wherein said hydroxy amine is trishydroxymethylaminomethane.
- 18. A composition according to claim 14, wherein said amine is triethylamine.
- 19. A composition according to claim 14, wherein said hydroxy amine is 2,2',2" nitrilotriethanol.
- 20. A process for improving the viscosity and dispersant properties of a lubricating oil composition which comprises adding a V.I. improver - dispersant oil soluble ionic polymer, having a number average molecular weight in the range of about 5000 to 1,000,000 to said lubricating oil composition at a concentration level of about 0.01 to about 10 weight percent, based on the weight of the total composition, said ionic polymer being formed by sulfonating a C.sub.2 to C.sub.50 aliphatic olefin polymer with a non-chlorine-containing sulfonating agent to a level of about 1 to 60 milliequivalents of SO.sub.3 H groups per 100 grams of sulfonated polymer, and reacting with a neutralizing agent selected from the group consisting of ammonia, ammonium salts and amine.
- 21. A process according to claim 20, wherein said ionic polymer contains about 0.5 to 5.0 mole % ionic groups.
- 22. A process according to claim 20, wherein said polymer comprises about 30 to 84.5 mole % ethylene, about 15 to 69.5 mole % C.sub.3 to C.sub.18 alpha olefin and about 0.5 to 20 mole % of C.sub.5 to C.sub.14 diolefin, and has a number average molecular weight in the range of about 10,000 to 500,000, wherein at least 50 mole % of the sulfonic acid units are neutralized to form said ionic polymer containing 0.005 to 2.5 wt. % nitrogen.
- 23. A process according to claim 22, wherein said sulfonated polymer is a sulfonated terpolymer of ethylene and propylene with either 1,4 hexadiene or 5-ethylidene-2-norbornene, which is 50 to 100% neutralized with an amine of 2 to 60 total carbon atoms and 1 to 12 nitrogen atoms.
- 24. A process according to claim 22, wherein said sulfonated polymer is a sulfonated terpolymer of ethylene and propylene with either 1,4 hexadiene or 5-ethylidene-2-norbornene, which is 50 to 100% neutralized with ammonia or ammonium salt.
- 25. A process for preparing a V.I. improving - dispersant oil soluble ionic sulfonated polymer useful for a lubricating or fuel oil additive which comprises dissolving an aliphatic C.sub.2 to C.sub.50 olefin polymer having a number average molecular weight in the range of about 5,000 to 1,000,000 in a mineral lubricating oil as solvent to form an oil solution, sulfonating said polymer with a non-chlorine-containing sulfonating agent in said oil solution to introduce sulfonic acid groups, and then neutralizing said sulfonated polymer in said oil solution with a neutralizing agent selected from the group consisting of ammonia, ammonium salts and amines to form said oil additive.
- 26. An additive concentrate comprising diluent oil, in the range of about 5 to 45 wt. % of a hydrocarbon soluble V.I. improving - dispersant ionic polymer having a number average molecular weight in the range of 5000 to 1,000,000 formed by sulfonating an aliphatic C.sub.2 to C.sub.50 olefin polymer with a non-chlorine-containing sulfonating agent to a level of about 1 to 60 milliequivalents of SO.sub.3 H groups per 100 grams of sulfonated polymer, said sulfonated polymer being neutralized at least partly with a neutralizng agent selected from the group consisting of ammonia, ammonium salts, and amine; and a solubilizing aid for said sulfonated polymer selected from the group consisting of lubricating oil ashless dispersants and oil soluble alkyl hydroxy aromatic sulfides lubricating oil antioxidants.
- 27. A concentrate according to claim 26, which also contains alcohol as a solubilizing agent for said polymer.
- 28. A concentrate according to claim 27, wherein said alcohol is hexanol.
- 29. A crankcase motor oil composition comprising a major amount of mineral lubricating oil, an antioxidant, a zinc dihydrocarbonyl dithiophosphate anti-wear additive, an alkaline earth metal overbased alkylaryl sulfonate, a pour point depressant, and an ashless dispersant, containing as a V.I.-dispersant, an oil soluble V.I. improving-dispersant ionic polymer having a number average molecular weight in the range of about 20,000 to 200,000 formed by sulfonating an aliphatic C.sub.2 to C.sub.50 olefin polymer with a non-chlorine-containing sulfonating agent, said sulfonated polymer having about 1 to 60 milliequivalents of SO.sub.3 H per 100 grams of sulfonated polymer, and then neutralizing at least partly with a neutralizing agent selected from the group consisting of ammonia, ammonium salts and amines.
- 30. A composition according to claim 29, wherein said olefin polymer is a terpolymer consisting essentially of ethylene, propylene and a diene selected from the group consisting of 1,4 hexadiene and 5-ethylidene-2-norbornene, neutralized with ammonia.
- 31. A composition according to claim 1, wherein said composition is a lubricating oil composition.
- 32. A composition according to claim 1, wherein said composition is a fuel oil composition.
- 33. A method of operating an internal combustion automotive engine which comprises lubricating said engine with the composition of claim 31.
- 34. Oil soluble ionic polymer useful as a V.I. improving-dispersant additive for lubricating oil having a number average molecular weight in the range of about 5,000 to 1,000,000 formed by sulfonating an aliphatic C.sub.2 to C.sub.50 olefin polymer with a non-chlorine-containing sulfonating agent, said sulfonated polymer having about 1 to 60 milliequivalents of SO.sub.3 H groups per 100 grams of sulfonated polymer, and being at least partly neutralized with a neutralizing agent selected from the group consisting of polyamines of 2 to 12 nitrogen atoms and 2 to 60 carbon atoms and hydroxy amines of 1 to 6 hydroxy groups.
- 35. Ionic polymer according to claim 34, wherein said olefin polymer has a number average molecular weight in the range of about 10,000 to 500,000 and said neutralizing agent is a polyamine selected from the group consisting of polyamines of the structure: ##STR3## wherein R, and R' are independently selected from the group consisting of hydrogen; C.sub.1 to C.sub.25 straight or branched chain alkyl radicals; C.sub.1 to C.sub.12 alkoxy C.sub.2 to C.sub.6 alkylene radicals; C.sub.2 to C.sub.12 hydroxy amino alkylene radicals; and C.sub.1 to C.sub.12 alkylamino C.sub.2 to C.sub.6 alkylene radicals; s is a number of from 2 to 6, and t is a number of
- (b). alicyclic diamines,
- (c). N-aminoalkyl piperazines of the general formula: ##STR4## wherein G is independently selected from the group consisting of hydrogen and omega-aminoalkylene radicals of from 1 to 3 carbon atoms, and p is an integer of from 1 to 4, and
- (d). N-(aminopropyl)morpholine.
- 36. Ionic polymer according to claim 35, wherein said olefin polymer comprises about 40 to 70 mole % ethylene, about 20 to 58 mole % of propylene and 2 to 10 mole % of diolefin, and has a number average molecular weight in the range of about 10,000 to 200,000 and is sulfonated to contain a sulfur content of about 0.03 to about 1.44 wt. % sulfur, wherein at least 25 mole % of the sulfonic acid units are neutralized to form an ionic polymer containing about 0.005 to 2.5 wt. % nitrogen.
- 37. Polymer according to claim 36, wherein said sulfonated polymer is 50 to 100% neutralized with a polyamine of 2 to 60 total carbon atoms and 2 to 12 nitrogen atoms.
- 38. Polymer according to claim 36, wherein said sulfonated polymer is 50 to 100% neutralized with hydroxy amine.
- 39. Polyer according to claim 34, wherein said ionic polymer is formed from an elastomeric polymer selected from the group consisting of ethylene-propylene-diene terpolymers, and butyl rubber.
- 40. Polymer according to claim 39, wherein said ionic polymer is a sulfonated ethylene-propylene-diene terpolymer having a number average molecular weight in the range of about 15,000 to 100,000, having about 2 to 31 milliequivalents of sulfonate groups per 100 grams of polymer.
- 41. Polymer according to claim 40, wherein said sulfonated polymer is neutralized with a polyamine.
- 42. Polymer according to claim 41, wherein said polyamine is N-(aminopropyl)morpholine.
- 43. Polymer according to claim 41, wherein said polyamine is a polyethyleneamine.
- 44. Polymer according to claim 43, wherein said polyethyleneamine is tetraethylenepentamine.
- 45. Polymer according to claim 40, wherein said sulfonated polymer is neutralized with a hydroxy amine.
- 46. Polymer according to claim 45, wherein said hydroxyamine is trishydroxymethylaminomethane.
- 47. Polymer according to claim 45, wherein said hydroxy amine is 2,2',2" nitrilotriethanol.
Parent Case Info
This is a continuation of application Ser. No. 195,846, filed Oct. 10, 1980.
US Referenced Citations (12)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2348 |
Jun 1979 |
EPX |
1246545 |
Feb 1969 |
GBX |
1239082 |
Jul 1971 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
195846 |
Oct 1980 |
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