Compositions – Electrolytes for electrical devices
Patent
1993-11-23
1995-06-06
McAvoy, Ellen M.
Compositions
Electrolytes for electrical devices
252 33, 252 336, 252 39, 252 515A, C10M12926, C10M13510
Patent
active
054220220
ABSTRACT:
Lubricant compositions are disclosed which comprise (A) at least one neutral or basic metal salt of at least one acidic organic compound, wherein the metal in the salt is magnesium, barium or a mixture thereof, and (B) optionally at least one hydrocarbyl-substituted ashless dispersant in which each hydrocarbyl substituent has a number average molecular weight up to about 1500, provided that the compositions contain no more than 0.06 weight percent calcium, not more than 0.5 weight-percent hydrocarbyl-substituted ashless dispersant in which a hydrocarbyl substituent has a number average molecular weight greater than about 1,500, and optionally not more than 0.5 weight-percent of polymeric viscosity improvers such as olefin copolymer, styrene-diene, and/or polymethacrylate viscosity improvers. Additive concentrate formulations for making such lubricant formulations are also disclosed. Methods for lubricating sump-lubricated fuel-injected alcohol-powered internal combustion engines are described which utilize these lubricant compositions to help prevent the formation of deposits in fuel injectors and provide advantageous rust and corrosion inhibition properties. These formulations can also be useful for lubricating combustion engines powered by petroleum- and coal-derived fuels.
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Hunter Frederick D.
McAvoy Ellen M.
Shold David M.
The Lubrizol Corporation
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