Chevron Oronite Company LLC

Patrick J McDougall

Pritesh A Patel

Casey Don Stokes

Young A Chang

David Lao

James Saenz

Disclosed is an oil-soluble lubricating oil additive composition, suitable for use as a dispersant viscosity index improver in lubricating oils; prepared by the process which comprises reacting a hydrocarbon polymer having a number average molecular weight (M) between about 7,000 and about 500,000 wherein the polymer backbone has been functionalized with an ethylenically unsaturated acylating agent and a hydroxyl-linked polycyclic fused ring component.

Viscosity improver grafted with unsaturated acylating agent and a polyaromatic hydrocarbon

Disclosed is an oil-soluble lubricating oil additive composition, suitable for use as a dispersant viscosity index improver in lubricating oils; prepared by the process which comprises reacting a hydrocarbon polymer having a number average molecular weight (M) between about 7,000 and about 500,000 wherein the polymer backbone has been functionalized with an ethylenically unsaturated acylating agent and an aryloxy-alkylene amine.

Viscosity improver grafted with unsaturated acylating agent and an aryloxyalylkene monoamine

Disclosed is a process for preparing an aryloxyalkylene amine compound via an aminoethylation reaction comprising: a) reacting an aromatic hydroxyl compound in the presence of a basic catalyst with a 2-oxazolidinone compound of the formula II to form an intermediate reaction product; 

Aminoethylation process having improved yield of aryloxyalkylene amine compounds and reduced urea by-products

A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) an oil soluble epoxide compound having the following structure: wherein X is hydrogen or a substituted or unsubstituted Cto Chydrocarbyl group, wherein the substituted hydrocarbyl group is substituted with one or more substituents selected from hydroxyl, alkoxy, ester or amino groups and Y is &#x2014;CHOR, &#x2014;C(&#x2550;O)ORor &#x2014;C(&#x2550;O)NHR, wherein R, Rand Rare independently hydrogen or Cto Calkyl or alkenyl groups; and further wherein the oil of lubricating viscosity does not contain a carboxylic acid ester.

Lubricating oil compositions containing epoxide antiwear agents

Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.

Methods of producing mono- and multi-functional polymers from terpene-based initiators

A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) an oil soluble epoxide compound having the following structure: wherein X is hydrogen or a substituted or unsubstituted Cto Chydrocarbyl group, wherein the substituted hydrocarbyl group is substituted with one or more substituents selected from hydroxyl, alkoxy, ester or amino groups and Y is &#x2014;CHOR, &#x2014;C(&#x2550;O)ORor &#x2014;C(&#x2550;O)NHR, wherein R, Rand Rare independently hydrogen or Cto Calkyl or alkenyl groups; &#x2014;and further wherein the oil of lubricating viscosity does not contain a carboxylic acid ester.

A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) an oil soluble epoxide compound having the following structure: wherein X is hydrogen or a substituted or unsubstituted Cto Chydrocarbyl group, wherein the substituted hydrocarbyl group is substituted with one or more substituents selected from hydroxyl, alkoxy, ester or amino groups and Y is &#x2014;CHOR, &#x2014;C(&#x2550;O)ORor &#x2014;C(&#x2550;O)NHR, wherein R, Rand Rare independently hydrogen or Cto Calkyl or alkenyl groups;&#x2014;and further wherein the oil of lubricating viscosity does not contain a carboxylic acid ester.

Disclosed are lubricating oil compositions comprising a major amount of an oil of lubricating viscosity; and from 0.05 to 10 weight % based upon the total lubricating oil composition of a 1,3-dioxolane-4-methanol compound of the formula I: 

Growing community of inventors

Berkeley, CA, United States of America

Patrick J McDougall