Title:
REFRIGERATING MACHINE OIL AND REFRIGERATING MACHINE WORKING FLUID COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/022576
Kind Code:
A1
Abstract:
The present invention provides a refrigerating machine working fluid composition containing a refrigerating machine oil and a refrigerant including difluoromethane. The refrigerating machine oil contains: a first ester having a dynamic viscosity at 100°C of 7.0 mm2/s or greater, the first ester being a polyol ester of dipentaerythritol and at least one type of fatty acid selected from C4-10 fatty acids; and a second ester which is a complex ester of a C6-12 polybasic acid, a C4-18 monohydric alcohol or a C4-18 fatty acid, and a polyhydric alcohol including at least one species selected from neopentyl glycol, trimethylolpropane, and pentaerythritol.
Inventors:
OKIDO TAKESHI (JP)
SHIMPO HIROKO (JP)
MIZUTANI YUYA (JP)
OGATA HIDETOSHI (JP)
SHIMPO HIROKO (JP)
MIZUTANI YUYA (JP)
OGATA HIDETOSHI (JP)
Application Number:
PCT/JP2016/071913
Publication Date:
February 09, 2017
Filing Date:
July 26, 2016
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M105/32; C09K5/04; C10M105/38; C10M105/42; C10N20/02; C10N30/00; C10N30/06; C10N40/30
Domestic Patent References:
| WO2015111522A1 | 2015-07-30 | |||
| WO2014087916A1 | 2014-06-12 |
Foreign References:
| JP2012508807A | 2012-04-12 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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