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:
Apr. 01, 2014
Filed:
Feb. 05, 2013
Dale D. Carr, Morristown, NJ (US);
Jeffrey A. Hutter, Edison, NJ (US);
Richard Kelley, Princeton, NJ (US);
Roberto Urrego, Newington, CT (US);
Edward T. Hessell, Fairfield, CT (US);
Dale D. Carr, Morristown, NJ (US);
Jeffrey A. Hutter, Edison, NJ (US);
Richard Kelley, Princeton, NJ (US);
Roberto Urrego, Newington, CT (US);
Edward T. Hessell, Fairfield, CT (US);
Chemtura Corporation, Middlebury, CT (US);
Abstract
Polyol ester lubricant compositions comprising predominately straight chain Calkylcarboxlate esters of neopentyl alcohols, for example, straight chain Calkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di-pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40° C. of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.