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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.:

US 9790449 B1

PDFFull Text
Date of Patent:
Oct. 17, 2017

Filed:

Jun. 28, 2012

Lubricant oil composition for compression refrigerator

Applicant:

Tomoya Matsumoto, Chiba, JP;

Inventor:

Tomoya Matsumoto, Chiba, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Prem C Singh

Assistant Examiner:

Francis C Campanell

Int. Cl.
CPC ...
C07C 69/34 (2006.01); C10L 1/18 (2006.01); C10M 129/16 (2006.01); C09K 5/04 (2006.01); C10M 171/00 (2006.01); C10M 129/10 (2006.01); C10M 129/18 (2006.01); C10M 137/04 (2006.01); C10M 105/38 (2006.01); C10M 107/24 (2006.01); C10M 107/32 (2006.01); C10M 107/34 (2006.01);
U.S. Cl.
CPC ...
C10M 129/16 (2013.01); C09K 5/045 (2013.01); C10M 105/38 (2013.01); C10M 107/24 (2013.01); C10M 107/32 (2013.01); C10M 107/34 (2013.01); C10M 129/10 (2013.01); C10M 129/18 (2013.01); C10M 137/04 (2013.01); C10M 171/008 (2013.01); C10M 2207/026 (2013.01); C10M 2207/042 (2013.01); C10M 2207/2835 (2013.01); C10M 2209/043 (2013.01); C10M 2209/1033 (2013.01); C10M 2209/1055 (2013.01); C10M 2223/041 (2013.01); C10M 2229/02 (2013.01); C10N 2220/302 (2013.01); C10N 2230/08 (2013.01); C10N 2230/12 (2013.01); C10N 2240/30 (2013.01);
Abstract

The present invention is able to provide a lubricating oil composition for compression refrigerating machine having excellent thermal/chemical stability even when used for a compression refrigerating machine using a saturated fluorinated hydrocarbon refrigerant having a low carbon number and a low global warming potential, by using a refrigerant containing a saturated fluorinated hydrocarbon having from 1 to 3 carbon atoms, which uses, as a base oil, an oxygen-containing organic compound composed of at least one member selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol and a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol monoether and a polyvinyl ether, and a polyol ester, each having a hydroxyl value of not more than 15 mgKOH/g.

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