Title:
LUBRICATING OIL COMPOSITION FOR REFRIGERATOR
Document Type and Number:
Japanese Patent JP3271905
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a lubricating oil compsn. which has high lubricating and sealing properties in an atmosphere of CO2 as a refrigerant by compounding a refrigerant mainly comprising CO2 with a base oil comprising a polyoxyalkylene glycol or a polyvinyl ether.
SOLUTION: This compsn. contains a refrigerant mainly comprising CO2 and a base oil comprising at least either a polyoxyalkylene glycol or a polyvinyl ether and having a kinematic viscosity of 5 cSt or higher at 100°C and is esp. suitable for a compression refrigeration cycle of a compression refrigerator. Esp. remarkable effects are achieved when the compsn. is applied to a compression refrigeration cycle having an oil separator and/or a hot gas line.
Inventors:
Satoshi Nagao
Toyokazu Handa
Toyokazu Handa
Application Number:
JP20739196A
Publication Date:
April 08, 2002
Filing Date:
August 06, 1996
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C09K5/04; C10M105/18; C10M107/24; C10M107/34; C10M171/00; C10M171/02; C10N20/02; C10N30/02; C10N30/06; C10N40/30; (IPC1-7): C10M105/18; C09K5/04; C10M107/24; C10M107/34
Domestic Patent References:
| JP439394A | ||||
| JP7173479A | ||||
| JP6128578A | ||||
| JP8193196A | ||||
| JP873880A | ||||
| JP8505657A |
Attorney, Agent or Firm:
Tamotsu Ohtani
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