Cognis Corporation

Emery Industries, Inc.

Cognis IP Management Gmbh

Stephen C Lakes

Bruce J Beimesch

Henry G Stoeppel, Ii

Karl T Zilch

Vasudevan Balasubramaniam

Mark Witschger

Kenneth R McVay

Lubricant compositions comprising biodegradable ester base stocks are provided for water-cooled or air-cooled two-cycle engines.

Biodegradable two-cycle engine oil compositions and ester base stocks

A process for reducing the amount of polyunsaturated fatty acid and/or polyunsaturated fatty acid ester present in admixture with monounsaturated fatty acid and/or monounsaturated fatty acid ester is provided which comprises heating the admixture of fatty acids and/or fatty acid esters in the presence of a polymerization initiating amount of at least one organic peroxide at a temperature and for a period of time which is sufficient to effect the selective polymerization of a substantial amount of polyunsaturated fatty acid and/or polyunsaturated fatty acid ester present in said admixture, and thereafter separating the polymerized polyunsaturated fatty acid and/or polyunsaturated fatty acid ester from said admixture. The aforedescribed process is especially useful for reducing the amount of linoleic acid present in high oleic acid-content vegetable oils.

Process for reducing the polyunsaturates content in mixtures of

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Cincinnati, OH, United States of America

Stephen C Lakes