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:
Nov. 25, 2014
Filed:
Sep. 19, 2007
Applicants:
Masato Kaneko, Chiba, JP;
Harutomo Ikeda, Chiba, JP;
Inventors:
Masato Kaneko, Chiba, JP;
Harutomo Ikeda, Chiba, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 (2006.01); C10M 171/00 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
C10M 171/008 (2013.01); C10M 169/04 (2013.01); C10M 2207/026 (2013.01); C10M 2207/042 (2013.01); C10M 2209/043 (2013.01); C10M 2223/041 (2013.01); C10N 2220/021 (2013.01); C10N 2220/022 (2013.01); C10N 2220/023 (2013.01); C10N 2220/303 (2013.01); C10N 2220/305 (2013.01); C10N 2220/306 (2013.01); C10N 2230/10 (2013.01); C10N 2230/34 (2013.01); C10N 2240/30 (2013.01);
Abstract
The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, an epoxy compound having 8 or more carbon atoms The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in stability, and does not have an unpleasant odor under carbon dioxide atmosphere.