Compositions – Electrolytes for electrical devices
Patent
1992-03-18
1993-06-29
McAvoy, Ellen
Compositions
Electrolytes for electrical devices
252 18, 252 25, 252 33, 252 427, 252 486, C10M13510
Patent
active
052231631
ABSTRACT:
Overbased metal phenates, preferably metal phenate sulfides, having a higher alkalinity, reflected by the total base number (TBN), and having good viscosity characteristics, are overbased in the presence of a carboxylic acid, preferably oleic acid and a dispersant composition. The dispersant composition comprises a dialkyl metal sulfosuccinate or a combination of the dialkyl metal sulfosuccinate and a metal hydrocarbylsulfonate. The preferred dialkyl metal sulfosuccinate is dioctyl-sodium sulfosuccinate. The preferred metal hydrocarbylsulfonate is calcium dinonylnaphthalenesulfonate, which imparts age and heat stability to the product. The overbased metal phenate sulfides are suitable as lubricant and functional fluid antioxidant additives.
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Keen Malcolm D.
McAvoy Ellen
McKillop Alexander J.
Mobil Oil Corporation
Sinnott Jessica M.
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