The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2014
Filed:
Apr. 06, 2011
Dale Carr, Morristown, NJ (US);
Jeffrey Hutter, Edison, NJ (US);
Richard Kelley, Princeton, NJ (US);
Robert Urrego, Newington, CT (US);
Edward T. Hessell, Fairfield, CT (US);
Dale Carr, Morristown, NJ (US);
Jeffrey Hutter, Edison, NJ (US);
Richard Kelley, Princeton, NJ (US);
Robert Urrego, Newington, CT (US);
Edward T. Hessell, Fairfield, CT (US);
Chemtura Corporation, Middlebury, CT (US);
Abstract
Lubricant compositions comprising certain mixtures of esters of pentaerythritol, di-pentaerythritol, tri-pentaerythritol and higher pentaerythritol oligomers are ideally suited for use with COas refrigerant in heat transfer devices provided that at least 30% by weight of the esters are esters of pentaerythritol oligomers containing 4 or more pentaerythritol monomer units and wherein a majority of the alkylcarboxylate groups are straight chain Calkanoyl groups, such as n-pentanoyl. Said mixture of alkylcarboxylate esters are shown to not only have higher than expected viscosity and exceptional COmiscibility, but also possess excellent lubricity, film building properties and load bearing properties even as part of a lubricant/COsolution.