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. 22, 2019
Filed:
Oct. 23, 2015
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventor:
Masato Kaneko, Ichihara, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L 1/18 (2006.01); C10M 169/04 (2006.01); C08F 116/14 (2006.01); C08G 65/34 (2006.01); C10M 171/00 (2006.01); C09K 5/04 (2006.01); C10M 105/18 (2006.01); C10M 105/34 (2006.01); C10M 105/36 (2006.01); C10M 105/38 (2006.01); C10M 107/24 (2006.01); C10M 171/02 (2006.01);
U.S. Cl.
CPC ...
C10M 169/048 (2013.01); C08F 116/14 (2013.01); C08G 65/34 (2013.01); C10M 171/008 (2013.01); C09K 5/04 (2013.01); C10M 105/18 (2013.01); C10M 105/34 (2013.01); C10M 105/36 (2013.01); C10M 105/38 (2013.01); C10M 107/24 (2013.01); C10M 171/02 (2013.01); C10M 2207/283 (2013.01); C10M 2207/2835 (2013.01); C10M 2209/043 (2013.01); C10M 2209/104 (2013.01); C10M 2209/108 (2013.01); C10M 2209/1045 (2013.01); C10M 2209/1085 (2013.01); C10N 2220/021 (2013.01); C10N 2220/022 (2013.01); C10N 2220/302 (2013.01); C10N 2220/303 (2013.01); C10N 2220/306 (2013.01); C10N 2230/02 (2013.01); C10N 2230/06 (2013.01); C10N 2230/12 (2013.01); C10N 2240/30 (2013.01);
Abstract
The lubricating oil composition for a refrigerator according to the present invention is a lubricating oil composition for a refrigerator containing a base oil containing a low-viscosity base oil component having added thereto a polyoxyalkylene glycol compound having a kinetic viscosity at 100° C. that is higher than the low-viscosity base oil component, and the base oil has a kinetic viscosity at 100° C. of 2.4 to 25 mm/s and a ratio (Mw/Mn) of a weight average molecular weight (Mw) and a number average molecular weight (Mn) of 1.3 to 13.