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US Patent 7662758 Polymeric polyol esters used in metalworking fluids

Patent 7662758 was granted and assigned to The Lubrizol Corporation on February, 2010 by the United States Patent and Trademark Office.

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Patent attributes

Current Assignee

The Lubrizol Corporation

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Sanjay N. Kalhan0

Christian G. Ollinger0

Derek T. Phillips0

Frank L. Kroto0

Date of Patent

February 16, 2010

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Patent Application Number

114237960

Date Filed

June 13, 2006

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Patent Primary Examiner

Glenn A Caldarola

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Patent abstract

Polymeric polyol ester additives for metal working applications are described that have lower pour points and improved solubility in API Group II and III basestocks. The polymeric polyol ester contains linear monocarboxylic acid, alkanedioic acid, alk(en)yl substituted succinic acid or anhydride, trihydric alcohol and pentaerythritol.

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