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Lubricating composition

A lubricant composition and composition technology, applied in the field of triazole compounds and additive compositions, can solve problems such as reducing anti-wear performance and adverse effects on engine performance

Inactive Publication Date: 2008-08-20
AFTON CHEMICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Additionally, because ZDDP breaks down and releases zinc molecules that can react with other performance additives in the lubricating composition to form sludge and other particulate matter that can adversely affect engine performance
Detrimental effects of oxidation are an issue in meeting more demanding engine performance requirements
[0006] It is not feasible to solve this problem by simply reducing the amount of ZDDP, because it will reduce the anti-wear performance at the same time

Method used

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Examples

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Embodiment

[0140] The following examples illustrate the invention and its advantageous properties. In this example, as well as elsewhere in this application, all parts and percentages are by weight unless otherwise indicated.

[0141] The compositions formulated according to the present application include aryl partially substituted triazole compounds, nitrogen-containing compounds, phenolic compounds and base oil compositions, as shown in Table 1 and Table 2. The triazole compound used in Example Compositions 1 and 2 was commercially available tolutriazole (Cobratec TT-100, PMC Special Grade, Cincinnati, Ohio). The nitrogenous compound was alkylated diphenylamine (Hi-TEC(R) 7190, Afton Chemical Company, Richmond, VA), and the phenolic compound was commercially available transesterphenol (Ethanox  4716, Albemarle Corporation, Richmond, VA). In the preparation of the comparative example, no triazole compound was used, and the same nitrogen-containing compound, phenolic compound and bas...

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Abstract

There is disclosed a lubricant composition comprising a major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) a nitrogen-containing compound represented by the formula (I): wherein R<1> and R<2> are each independently selected from the group consisting of at least one aryl moiety comprising from about 6 to about 30 atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono; and (iii) a phenolic compound.

Description

technical field [0001] The present invention relates to additive and lubricant compositions and methods of their use. More particularly, the present invention relates to an additive composition comprising (i) a triazole compound; (ii) a nitrogen-containing compound; and (iii) a phenolic compound. Background technique [0002] Lubricating oils for internal combustion engines, car or truck gearboxes are affected by the environment during use. This environment will lead to oil oxidation, and the impurities in the oil can catalyze the oxidation process, and the oxidation process will be accelerated due to the increase in temperature of the oil in use. [0003] Oxidation of lubricating oils leads to the formation of sludge in the oil and a reduction in the viscosity properties of the lubricant. Oxidation is often controlled to a certain extent by selecting appropriate antioxidant additives, thereby significantly increasing the life of the lubricating oil. Antioxidant additives...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M133/44C10M133/12C10M129/10C10N30/10C10N40/25C10N40/04
CPCC10N2230/10C10M2215/223C10M2207/026C10M141/08C10N2240/103C10N2230/02C10M141/06C10N2240/104C10M2215/064C10M2207/289C10M2223/045C10M2209/10C10M141/10C10N2030/02C10N2030/10C10N2040/253C10N2040/255C10M163/00C10M133/12C10M133/44C10N2040/25
Inventor J·T·洛珀N·C·马图尔P·G·格里芬D·A·哈钦森
Owner AFTON CHEMICAL