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Sulphur free composition and lubricant composition and methods thereof

a technology of sulphur free composition and lubricant composition, which is applied in the direction of lubricant composition, liquid carbonaceous fuels, fuels, etc., can solve the problems of reducing the performance of catalytic converters, adversely affecting the performance of exhaust treatment devices, and increasing the amount of greenhouse gases such as nitric oxide and/or sulphur oxides, so as to improve the performance of internal combustion engines and improve one or more performance properties

Inactive Publication Date: 2006-11-02
THE LUBRIZOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0028] The invention also provides a use of the inventive composition for imparting to an internal combustion engine an improvement in one or more performance properties selected from the group selected consisting of cleanliness, wear and exhaust emissions.
[0029] The invention additionally provides a method of lubricating and of improving the performance of an internal combustion engine comprising supplying to the engine a lubricant composition comprising the sulphur free reaction product of components (a)(i) and (a)(ii) as described throughout this application.

Problems solved by technology

Various lubricant compositions such as certain two-stroke engine oils and stationary natural gas engine oils require detergency performance, but also require that the engine oil contain little or no metals for satisfactory performance.
This reduction in the sulphur, phosphorus and metal content of engine oils is being implemented because it is thought that they can adversely affect the performance of exhaust treatment devices.
Any reduction in the performance of catalytic converters tends to result in increased amounts of greenhouse gases such as nitric oxide and / or sulphur oxides.
However, reducing the amount of ZDDP will increase the amount of wear in an engine.
Also reducing the amount of detergent will decrease engine cleanliness and result in increased deposits.

Method used

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  • Sulphur free composition and lubricant composition and methods thereof
  • Sulphur free composition and lubricant composition and methods thereof
  • Sulphur free composition and lubricant composition and methods thereof

Examples

Experimental program
Comparison scheme
Effect test

example a

Preparative Example A

Preparation of PIB Phenol-Formaldehyde-Salicylic Acid

[0084] A 2 litre reaction flask is charged with 475 g (0.739 mole, 1 eq) polyisobutenyl phenol derived from high vinylidene polyisobutylene with a number average molecular weight of 550 (GLISSOPAL®550 commercially available from BASF) and 330 g mineral oil (SN150) and heated to 30° C. Via a pressure equalising dropping funnel, 3.4 g of 50% aqueous KOH (0.030 mole, 0.04 eq) is added all at once. The materials are heated to 75° C. followed by addition over 0.5 hour via a pressure equalising dropping funnel, 81.6 g 37% aqueous formaldehyde (formalin) (1.01 moles, 1.367 eq) followed by heating at 75° C. for 2 hours until free formaldehyde measures less than 2% (by titration). To the reaction is charged 51.6 g salicylic acid (0.374 mole, 0.51 eq) and the reaction is heated to 140° C. as quickly as possible (0.3 hour) while controlling reflux, draining water of reaction via a Dean Stark trap. The reaction is held a...

example b

Preparative Example B

Preparation of PIB Phenol-Formaldehyde-3,5-Dihydroxybenzoic Acid

[0085] The process is the same as Preparative Example A except, 415.5g of polyisobutenyl phenol derived from high vinylidene polyisobutylene with a number average molecular weight of 550 (GLISSOPAL®550 commercially available from BASF) is used, 290 g mineral oil (SN150) and 50.5 g of 3,5-dihydroxybenzoic acid is used instead of salicylic acid.

example c

Preparative Example C

Preparation of PIB Phenol-Formaldehyde-4-Hydroxybenzoic Acid

[0086] The process is the same as Preparative Example B except, 45.2 g of 4-hydroxybenzoic acid is used instead of 3,5-dihydroxybenzoic acid.

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Abstract

A composition comprises a sulphur free reaction product of: (a)(i) a hydrocarbyl substituted aromatic compound containing an acidic group selected from the group consisting of a carboxylic group, a hydroxyl group and mixtures thereof and (a)(ii) an organic nitrogen-containing base reacted with acidic group. The composition is obtained by a preparatory process and is useful in a method for lubricating an internal combustion engine to include where the lubricant has reduced levels of sulphur, phosphorus and sulphated ash.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 441516 filed on 21 Jan. 2003.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention involves a sulphur free composition, a composition containing the sulphur free composition and an oil of lubricating viscosity, and methods to prepare and use the sulphur free composition. The sulphur free composition is especially useful in lubricants for an internal combustion engine by providing multifunctional performance without introducing sulphur and introducing at most only minor amounts of metal into the lubricant. [0004] 2. Description of the Related Art [0005] Detergents are lubricant additive compositions that typically provide detergency performance to a lubricant composition that can include neutralizing acids, preventing corrosion, and providing cleanliness by suspending deposit forming substances and removing deposits. Detergents generally consist of an anionic organic surfact...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10L1/22C10M129/14C10M129/54C10M133/02C10M133/12C10M133/14C10M145/20C10M149/14C10M159/12
CPCC10M129/14C10N2230/50C10M133/02C10M133/12C10M133/14C10M145/20C10M149/14C10M159/12C10M2201/06C10M2201/18C10M2207/023C10M2207/024C10M2207/08C10M2207/144C10M2209/101C10M2215/02C10M2215/04C10M2215/042C10M2215/06C10M2215/14C10M2215/22C10M2215/224C10M2217/046C10N2230/04C10N2230/06C10N2230/42C10N2230/43C10N2230/45C10M129/54C10N2030/04C10N2030/06C10N2030/42C10N2030/43C10N2030/45C10N2030/50
Inventor CRESSEY, DAVIDPRICE, DAVIDFRIEND, CHRISTOPHER L.CARRICK, VIRGINIA A.MORETON, DAVID J.DURHAM, DAVID J.MCATEE, RODNEY J.SUTTON, MICHAEL R.
Owner THE LUBRIZOL CORP
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