Invention Grant
- Patent Title: Lubricating oil composition for refrigerator, composition for refrigerator, lubricating method, and refrigerator
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Application No.: US15776185Application Date: 2016-11-18
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Publication No.: US10662392B2Publication Date: 2020-05-26
- Inventor: So Nakajima , Masato Kaneko , Tetsuhiko Fukanuma , Ryo Matsubara , Yuki Yokoi
- Applicant: IDEMITSU KOSAN CO., LTD.
- Applicant Address: JP Chiyoda-ku
- Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee: IDEMITSU KOSAN CO., LTD.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@41455e92
- International Application: PCT/JP2016/084209 WO 20161118
- International Announcement: WO2017/086422 WO 20170526
- Main IPC: C10M169/04
- IPC: C10M169/04 ; C09K5/04 ; C10M107/34 ; C10M129/08 ; C10M129/16 ; C10M133/16 ; C10M141/06 ; C10M171/00
Abstract:
The lubricating oil composition for a refrigerator of the present invention is used with a refrigerant containing carbon dioxide, and contains a base oil (A) containing a polyoxyalkylene glycol as a major component, and an alcohol (B) having at least one hydroxy group, in which a total number of the hydroxy group and an ether bond is from 2 to 3 (provided that the number of an ether bond may be 0).
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