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Lubricating oil composition comprising 1,3-dioxolane-4-methanol compound as anti-wear additive

A kind of lubricating oil composition, technology of dioxolane, applied in the direction of lubricating composition, additive, petroleum industry etc.

Inactive Publication Date: 2016-06-22
CHEVRON ORONITE CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, problems associated with the use of ZnDTP have arisen because of the toxic catalyst components of phosphorus and sulfur derivatives of catalytic converters

Method used

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  • Lubricating oil composition comprising 1,3-dioxolane-4-methanol compound as anti-wear additive
  • Lubricating oil composition comprising 1,3-dioxolane-4-methanol compound as anti-wear additive
  • Lubricating oil composition comprising 1,3-dioxolane-4-methanol compound as anti-wear additive

Examples

Experimental program
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Effect test

Embodiment

[0082] The invention will be further illustrated by the following examples, which illustrate particularly advantageous embodiments and which are not to be considered as limiting the scope of the invention. This application is intended to cover those various changes and substitutions which may be made by those skilled in the art without departing from the spirit and scope of the appended claims.

[0083] Synthesis Examples - The following compounds were prepared or purchased as follows.

[0084] Synthesis Example 1 - 1,3-dioxolane-4-methanol, CAS No. 99569-11-6 (also known as cyclomethylene glyceryl ether commercially available from Sigma-Aldrich, St. Louis, MO)

[0085] Synthesis Example 2 - 2,2-Dimethyl-1,3-dioxolane-4-methanol, CAS No. 100-79-8 (commercially available from Sigma-Aldrich, St. Louis, MO)

[0086] Synthesis Example 3 -2-Ethyl-2-methyl-1,3-dioxolane-4-methanol, prepared as follows:

[0087] A 250 mL round bottom flask was charged with glycerol (5 grams), ...

Embodiment B1

[0110] Performance Example B1, base oil topped with commercially available zinc dialkyldithiophosphate, 1.0% by weight (15mM) of zinc dialkyldithiophosphate (performance example B1); preparation method see Synthesis Example A base oil topped with 1.0% by weight of 2,2-dipentyl-1,3-dioxolane-4-methanol (Property Example B2); see Synthesis Example 1 for 1.0 wt% 1,3-dioxolane-4-methanol topped base oil (Property Example 3). Performance Examples 4-6 were prepared using Synthesis Examples 2-4 Top Treatment Benchmark B at 1.0 wt%, based on the total weight of the lubricating oil composition.

[0111] The results of the MTM test are shown in Table 3. For comparison purposes, test results from a lubricating oil composition without an anti-wear additive (Example B) and a lubricating oil composition comprising zinc dialkyldithiophosphate (Example B1 ) and containing 2, Lubricating oil composition of 2-dipentyl-1,3-dioxolane-4-methanol (Example B2).

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Abstract

Disclosed is a lubricating oil composition comprising a major amount of an oil of lubricating viscosity, and 0.05-10% by weight of 1,3-dioxolane-4- Methanol compounds: where: R 1 and R 2 each independently hydrogen, alkyl or alkenyl, where R 1 and R 2 The sum of the carbon atoms is 6 carbon atoms or less.

Description

technical field [0001] Disclosed is a lubricating oil composition comprising 1,3-dioxolane-4- Methanol. Lubricating oil compositions comprising these 1,3-dioxolane-4-methanols provide wear protection for motor vehicle oils and gear sets. Background technique [0002] Zinc dithiophosphate (ZnDTP) has long been used as an anti-wear additive and antioxidant in engine oils, automatic transmission fluids, hydraulic fluids, etc. Conventional engine oil technology relies heavily on ZnDTP to provide extremely low cam and lifter wear and favorable oxidation protection under severe conditions. ZnDTP operates under mixed-film lubrication conditions by reacting with frictional metal surfaces to form a protective lubricating film. The mixed film lubrication mechanism is a mixture of full film (hydrodynamic) lubrication, where the lubricating film is thick enough to prevent metal-to-metal contact, and boundary lubrication, where the lubricating film thickness is significantly reduced a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M129/06C10M169/06C10N30/06C10N40/25
CPCC10M129/20C10M2203/1025C10M2207/044C10M2207/289C10M2215/064C10M2215/28C10M2219/046C10M2223/045C10M2227/09C10M2207/281C10N2020/04C10N2030/52C10N2030/06C10N2040/04C10N2040/25C10N2040/251C10N2040/252C10N2040/255C10N2040/26C10N2040/135C10N2010/12C10N2010/04C10N2060/06
Inventor P·J·麦克杜加尔
Owner CHEVRON ORONITE CO LLC