Chevron Oronite Company LLC

Christine Gandon

Pierre Tequi

Gilles P Sinquin

Curt B Campbell

Stephanie Palotiai

Michael Shrout

Kyle J Frederic

Eugene E Spalla

Stéphanie Palotiai

Pierre Téqui

Provided are formulations, methods of making, and methods of using a functional fluid of the present invention to achieve and maintain optimal frictional characteristics in machines housing that fluid, wherein the functional fluid comprises, among others, a friction-modifying amount of an alkyl toluene sulfonate salt or a mixture of alkyl toluene sulfonate salts.

Functional fluids comprising alkyl toluene sulfonates

Disclosed is a method for improving filtration in the preparation of an alkaline earth metal alkyltoluene sulfonate concentrate by selectively controlling the meta, ortho, para isomer distribution of the alkyl group of the alkyltoluene produced by the process comprising alkylating toluene with at least one isomerized normal alpha olefin, having from about 18 to about 30 carbon atoms and having from 20% to 100% branching in an alkylation process which includes monitoring % isomer formation and adjusting an alkylation process parameter in order to provide a target specified isomer content of less than 38% meta-isomer content; and thereafter sulfonating and neutralizing to produce a low base number sulfonated alkyltoluene concentrate having a Base Number of about 2 to 60 (ASTM D 2896).

Method for the preparation of low overbased alkyltoluene sulfonate

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Montivilliers, France

Christine Gandon