Afton Chemical Corporation

Ju-Fu Shiau

Abbas Kadkhodayan

Charles A Passut

Cathy C Devlin

Joe S Bradley

Kyle D Stoneman

Jose Reyes-Gavilan

This invention relates to detergents, lubricating oil additives and compositions, and methods of preparing detergents, lubricating oil additives and compositions. More specifically, this invention relates to novel phenolic dimers.

Phenolic dimers, the process of preparing same and the use thereof

An alkali metal sulfonate mixture for metalworking applications, a method for making the sulfonate mixture, and compositions containing the sulfonate mixture. The mixture includes a reaction product of a first synthetic mono-hydrocarbyl substituted sulfonic acid having from about 20 to about 50 carbon atoms in the hydrocarbyl substituent, a second synthetic mono-hydrocarbyl substituted sulfonic acid having from about 10 to about 16 carbon atoms in the hydrocarbyl substituent, and an inorganic alkali metal base. The reaction product has a number average molecular weight ranging from about 400 to about 500 and a substantially bimodal molecular weight distribution.

Sulfonate compositions

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Chesterfield, MO, United States of America

Ju-Fu Shiau