Title:
REFRIGERATING MACHINE OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2002/008365
Kind Code:
A1
Abstract:
A refrigerating machine oil composition containing an alicyclic polycarboxylic ester compound which is obtained from the following compounds (a) to (c): an alicyclic polycarboxylic acid which has an alicyclic ring and two or more carboxyl groups and in which at least two of the carboxyl groups are bonded to adjacent carbon atoms on the alicyclic ring, or a derivative thereof; a compound having two or more hydroxyl groups or a derivative thereof; and a compound having one hydroxyl group or a derivative thereof. When used in combination with an HFC refrigerant or a natural type refrigerant such as carbon dioxide or a hydrocarbon, the composition can have an excellent balance among all of lubricity, compatibility with the refrigerant, thermal/hydrolytic stability, and electrical insulating properties.
Inventors:
SHIMOMURA YUJI (JP)
TAKIGAWA KATSUYA (JP)
TAKIGAWA KATSUYA (JP)
Application Number:
PCT/JP2001/006241
Publication Date:
January 31, 2002
Filing Date:
July 18, 2001
Export Citation:
Assignee:
NIPPON MITSUBISHI OIL CORP (JP)
SHIMOMURA YUJI (JP)
TAKIGAWA KATSUYA (JP)
SHIMOMURA YUJI (JP)
TAKIGAWA KATSUYA (JP)
International Classes:
C10M105/38; C10M105/42; C10M105/58; C10M129/18; C10M129/66; C10M129/70; C10M137/02; C10M137/04; C10M137/08; C10M171/00; C10N30/00; C10N30/08; C10N40/30; (IPC1-7): C10M105/38; C10M129/74
Domestic Patent References:
| WO1997021792A1 | 1997-06-19 | |||
| WO2000058426A1 | 2000-10-05 | |||
| WO2001005740A1 | 2001-01-25 | |||
| WO2000058424A1 | 2000-10-05 | |||
| WO2001002517A1 | 2001-01-11 | |||
| WO2000058425A1 | 2000-10-05 |
Foreign References:
| EP0440069A1 | 1991-08-07 | |||
| EP0435253A1 | 1991-07-03 | |||
| JP2001049275A | 2001-02-20 |
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Okura-honkan 6-12 Ginza 2-chome Chuo-ku, Tokyo, JP)
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