The Lubrizol Corporation

Daniel E Barrer

Jody A Kocsis

Jonathan S Vilardo

Richard J Vickerman

Jason R Brown

Patrick E Mosier

Calvin W Schroeck

Robert E Quinn

Willis P Nichols

Craig D Tipton

Virginia A Carrick

Jack L Karn

Frederick W Koch

Joseph W Pialet

James P Roski

Nai Z Huang

John M Cahoon

Formulations using tartaric compounds of the present invention in a low sulfur, low ash and low phosphorous lubricant lower wear, and friction and improves fuel economy.

Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparations thereof

Tartaric acid derivatives in fuel compositions

Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparation thereof

This invention relates to an overbased vaterite containing composition, comprising: a disperse medium, and a calcium salt and calcium carbonate dispersed in the disperse medium, at least about 50% by weight of the calcium carbonate being in the form of vaterite, the composition being substantially haze free.

Overbased vaterite containing salt composition

A metal overbased composition is disclosed that comprises

Metal overbased and gelled natural oils

This invention relates to a composition comprising a major amount of an oil of lubricating viscosity, and (A) an organic ammonium thiosulfate. The lubricating composition is either free of added lead containing compounds or additionally contains (B) a phosphorus or boron antiwear/extreme pressure agent, or both. The invention also includes greases and aqueous fluids containing organic ammonium thiosulfates. These compositions have improved antiwear, antiweld, extreme pressure and/or friction properties.

Lubricating compositions, greases, aqueous fluids containing organic

A metal overbased composition is disclosed that comprises (A) at least one natural oil comprising an animal oil or vegetable oil comprising a triglyceride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently saturated or unsaturated aliphatic hydrocarbyl groups containing from about 8 to about 24 carbon atoms and (B) a metal base oxide (MO), hydroxide (MOH) or alkoxide (R.sup.4 OM) wherein the metal comprises an alkali or alkaline earth and R.sup.4 is a hydrocarbyl group containing from about 1 to about 24 carbon atoms, and wherein the equivalent ratio of (A):(B) is from 0.90-10:1 to form a sponified intermediate, adding 2-11 equivalents of (B) per equivalent of formed saponified intermediate and reacting excess (B) with (C) an acidic gas comprising carbon dioxide, sulfur dioxide or sulfur trioxide. This composition may also be gelled to produce a rheology control agent.

Overbased salt compositions are formed by reacting a hydreocarbyl substituted sulfonic acid or salt thereof with a basic neutralizing agent, in the presence of a hydroxy sulfonic acid or salt thereof. The overbased salt composition is preferably overbased by casrbonating via CO.sub.2 bubbling. Mixed overbased salts and compositions containing the mixed salts are disclosed as well as lubricating compositions containing such salts. The lubricating compositions have particularly good clarity.

Method of overbasing with a hydroxy sulfonic acid copromoter

A method of preparing boron-containing compositions is described which comprises reacting at least one hydroxy-substituted ester, amide or imide with a boron compound. Such boron-containing compositions are useful in lubricating oils and provide the lubricating oils with anti-wear and/or friction-reducing properties. The boron-containing compositions also are useful in fuel compositions.

Boron-containing compositions, and lubricants and fuels containing same

Tartarimides represented by the formula ##STR1## are disclosed, wherein R is a hydrocarbon-based radical having up to 150 carbon atoms. The disclosed tartarimides are useful as additives in lubricants and fuels.

Growing community of inventors

Richmond Heights, OH, United States of America

Daniel E Barrer