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:
Jul. 31, 2001
Filed:
Apr. 09, 1999
Applicant:
Inventors:
Nicholas E. Schnur, Cincinnati, OH (US);
Eugene R. Zehler, West Chester, OH (US);
Assignee:
Henkel Corporation, Gulph Mills, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
C09K 5/04 ; C10M / ; C10M / ;
Abstract
A high quality lubricant for heavy duty service air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably di-pentaerythritol, usually mixed with some pentaerythritol, with a mixture of carboxylic acids including at least some of each of iso-pentanoic acid and iso-nonanoic acid.
Schnur, Nicholas. (2001). Polyol ester lubricants for refrigerating compressors operating at high temperature (U.S. Patent No. 6267906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6267906
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile