Title:
REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2022/209688
Kind Code:
A1
Abstract:
Provided is a refrigerator oil composition used in a refrigerant containing at least one unsaturated fluorohydrocarbon compound selected from compounds represented by general formula (1) CxFyHz [in general formula (1), x, y, and z represent integers of 2-6, 1-11, and 1-11, respectively, and there is at least one carbon-carbon unsaturated bond in the molecule]. The refrigerator oil composition contains an epoxy compound (B) and a base oil (A) selected from the group consisting of polyol esters and copolymers between a polyvinyl ether and a polyalkylene glycol, a polyvinyl ether, a poly(oxy)alkylene glycol, or a mono ether thereof. The epoxy compound (B) satisfies requirements (B1) and (B2). As a result, the refrigerator oil composition can effectively suppress an increase in the acid value even when the proportion of an unsaturated fluorohydrocarbon compound (HFO) in the refrigerant is increased. (B1) Having at least one divalent group represented by formula (1) in the molecule. (B2) Having at least one ester group in the molecule.
Inventors:
MATSUMOTO TOMOYA (JP)
Application Number:
PCT/JP2022/010451
Publication Date:
October 06, 2022
Filing Date:
March 10, 2022
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C09K5/04; C10M105/38; C10M107/24; C10M107/34; C10M129/18; C10M129/66; C10N30/08; C10N40/30
Foreign References:
| JP2014047267A | 2014-03-17 | |||
| JPS53140469A | 1978-12-07 | |||
| JPH0370796A | 1991-03-26 | |||
| JPS5558298A | 1980-04-30 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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