Title:
REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2021/167068
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a refrigerator oil composition having excellent wear resistance of a sliding portion of an iron member even when a refrigerant including an unsaturated fluorinated hydrocarbon compound (HFO) is used. The problem was solved by using a refrigerator oil composition which is used for a refrigerant including at least one unsaturated fluorinated hydrocarbon compound selected from compounds represented by general formula (1) of CxFyHz [In general formula (1), x is an integer of 2-6, y is an integer of 1-11, and z is an integer of 1-11, and the molecule has at least one carbon-carbon unsaturated bond], the refrigerator oil composition comprising: (A) a base oil; (B) a phosphorus-based extreme pressure agent; (C) a decomposition inhibitor that suppresses the decomposition of the unsaturated fluorinated hydrocarbon compound in the presence of iron; and (D) an antioxidant, wherein (C) the decomposition inhibitor is a compound that suppresses an amount of fluorine in the refrigerator oil composition to be 30 mass ppm or less, after the refrigerator composition and R1234yf are mixed at a mass ratio of 1:1, and the resultant mixture is subjected to an autoclave test at 175 °C for 336 hours, in the presence of a metal catalyst consisting of iron, copper, and aluminum.
Inventors:
NAKAJIMA SO (JP)
KUBOTA MASAYA (JP)
KUBOTA MASAYA (JP)
Application Number:
PCT/JP2021/006377
Publication Date:
August 26, 2021
Filing Date:
February 19, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M141/10; C09K5/04; C10M101/02; C10M105/38; C10M107/24; C10M107/34; C10M125/26; C10M129/54; C10M129/74; C10M129/76; C10M133/00; C10M137/00; C10M169/04; C10N30/06; C10N40/30
Domestic Patent References:
| WO2009066722A1 | 2009-05-28 | |||
| WO2013137112A1 | 2013-09-19 | |||
| WO2012001842A1 | 2012-01-05 | |||
| WO2021039249A1 | 2021-03-04 |
Foreign References:
| JP2019034997A | 2019-03-07 | |||
| JP2017193598A | 2017-10-26 | |||
| JPH05302094A | 1993-11-16 | |||
| JPH06100881A | 1994-04-12 | |||
| JP2016056306A | 2016-04-21 | |||
| JP2006503961W |
Other References:
See also references of EP 4108744A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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