Mobil Oil Corporation

Andrew Jeng

Andrew G Horodysky

Ross A Kremer

Liwen Wei

Leslie R Rudnick

Halou Oumar-Mahamat

Shih-Ying Hsu

Alkyl ethers of sulfur containing hydroxyl-derived aromatics have been found to be effective as high-performance synthetic lubricant base stocks with superior catalytic thermal/oxidative stabilities, excellent antiwear and load-carrying properties, as exemplified by bisphenol sulfide (BPS) based products. These ethers are also highly useful in fuel compositions.

Hydrocarbyl ethers of sulfur-containing hydroxyl derived aromatics as

Novel dihydrobenzothiophenes prepared via condensation of arylthiols and carbonyl or epoxide containing reagents have been found to be effective antioxidant and antiwear additives in lubricant applications. These additives are made from relatively low cost mercaptans and carbonyl compounds in a one-step high yield reaction.

Dihydrobenzothiophenes as antioxidant and antiwear additives

Alkyl ethers of sulfur-containing hydroxyl-derived aromatics have been found to be effective as high-performance synthetic lubricant base stocks with superior catalytic thermal/oxidative stabilities, excellent antiwear and load-carrying properties, as exemplified by bisphenol sulfide (BPS) based products. These ethers are also highly useful in fuel compositions.

An aromatic functional fluid, specifically a monoalkylated tetradecyl diphenyl oxide synthetic lubricant, contains a polymer-supported reaction product of an organic quaternary ammonium salt, derived from a mercapto-heterocycle and a quaternary ammonium salt. To produce the polymer-supported organic quaternary ammonium salt, the salt is reacted with a dicarboxylic acid or anhydride, specifically 2-dodecen-1-ylsuccinic anhydride. An arylamine antioxidant, such as alkylated phenyl naphthylamine, can be added to the polymer supported organic quaternary ammonium salt-treated functional fluid to impart extra antioxidant and stability properties.

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Marlton, NJ, United States of America

Andrew Jeng