Henkel Corporation

Cognis Corporation

Jeff A Barnhorst

Eugene R Zehler

Roger H Garst

Ronald H Gordon

Dean A Oester

A process for removing polyol impurities from a sorbitan ester solution involving: (a) providing a sorbitan ester solution containing polyol impurities; (b) adding to the sorbitan ester solution a clarifying-effective amount of a silica component; (c) adsorbing the polyol impurities from the sorbitan ester solution onto the silica to form a mixture of sorbitan ester and polyol-containing silica; and (d) removing the polyol-containing silica from the sorbitan ester solution.

Process for removing polysorbitols from sorbitan esters

Water-based stamping lubricants are comprised of: (1) water; (2) a polyester that is water-soluble or readily emulsifiable made by reacting one or more dicarboxylic acids and a polyalkylene glycol; (3) one or more ethoxylated alkylalcohols; (4) the salt of a phosphate ester of an ethoxylated alkyl alcohol; (5) an alkanolamine.

Stamping lubricants

Stamping lubricant compositions which exhibit improved lubricity and methods for reducing friction and wear utilizing said stamping lubricant compositions.

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Cincinnati, OH, United States of America

Jeff A Barnhorst