Lubricating compositions with enhanced deposit performance

a technology of lubricating compositions and deposits, applied in the field of lubricating compositions, can solve the problems of complex chemistry used in the formulation of engine oils, limited solubility of polar additives, and high non-polarity, and achieve the effects of reducing the potential damage of ash, improving overall fuel economy, and reducing the formation of deposits

a technology of lubricating compositions and deposits, applied in the field of lubricating compositions, can solve the problems of complex chemistry used in the formulation of engine oils, limited solubility of polar additives, and high non-polarity, and achieve the effects of reducing the potential damage of ash, improving overall fuel economy, and reducing the formation of deposits

US20190024010A1Inactive Publication Date: 2019-01-24EXXON RES & ENG CO
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  • Lubricating compositions with enhanced deposit performance
  • Lubricating compositions with enhanced deposit performance
  • Lubricating compositions with enhanced deposit performance

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[0101]As noted above, creating engine oil compositions including a CRFM presented certain challenges to the present inventors. Particularly, the addition of a CRFM to the lubricating oil composition can result in unmanageable deposit formation from the CRFM.

[0102]FIG. 1 illustrates a graph of TDi2 piston deposit merits for initial CRFM formulations. The piston deposit merit is a cleanliness grade for an engine oil. A merit score of 65 indicates a passing grade with 70 indicating an exceptionally clean formulation. As is illustrated in FIG. 1, an initial lubricating oil (comparative example 2A), which did not include any CRFM, had a deposit merit score of 65. When CRFM was added to this initial oil, the deposit merit score drop significantly to 54 (comparative example 2B) and 50 (comparative example 2C), respectively. Thus, with merely adding CRFM to an existing engine oil, the deposit merit score dropped to well below passing. Similarly, another initial lubricating oil (comparative ...

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Abstract

A lubricant composition includes a lubricating base oil, a controlled release friction modifier, a dispersant, a viscosity modifier and a cleanliness booster. The controlled release friction modifier is an ashless, dispersant-stabilized, borated controlled release friction modifier including an ionic tetrahedral borate compound including a cation and a tetrahedral borate anion, wherein the tetrahedral borate anion includes a boron atom having two bidentate di-oxo ligands of C18 tartrimide.

Description

[0001]This nonprovisional application claims priority to U.S. Provisional Application No. 62 / 535,527, which was filed on Jul. 21, 2017, and is herein incorporated by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to a lubricant composition, in particular, a lubricant composition, suitable for use in, for example, internal combustion engines, which reduces deposit formation and friction in an engine.Description of the Background Art[0003]Engine oils are formulated for the purpose of reducing friction in the engine, engine cleanliness (e.g., deposit control), control of wear, corrosion and rust in the engine. To accomplish this goal, engine oils contain numerous and various additives including friction modifiers, detergents, dispersants, viscosity modifiers and antioxidants.[0004]Of significant concern is the reduction of friction in engines so as to improve fuel economy necessitating the use of lower viscosity lubricating base stocks wh...

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Application Information

Patent Timeline
24 Jan 2019
Publication
US20190024010A1
IPC
C10M143/12; C10M143/06; C10M101/02
CPC
C10M143/12; C10M143/06; C10M101/025; C10N2230/02; C10N2230/06; C10N2230/04; C10M169/04; C10M2203/1025
Inventors
BLUMENFELD, MICHAEL L.; DECKMAN, DOUGLAS E.