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1. (WO2013146522) LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINES

Pub. No.:    WO/2013/146522    International Application No.:    PCT/JP2013/058044
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Fri Mar 22 00:59:59 CET 2013
IPC: C10M 169/04
C09K 5/04
C10M 105/06
C10M 105/38
C10M 107/02
C10M 107/24
C10M 107/36
C10M 133/16
C10N 20/02
C10N 30/08
C10N 30/10
C10N 40/30
Applicants: IDEMITSU KOSAN CO.,LTD.
出光興産株式会社
MATSUMOTO Tomoya
松本 知也
Inventors: MATSUMOTO Tomoya
松本 知也
Title: LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINES
Abstract:
This lubricating oil composition for refrigerating machines is made by blending an additive to a base oil, wherein said additive is a naphthalimide compound, and a refrigerant for the refrigerating machine in which said composition is used is an unsaturated fluorohydrocarbon (unsaturated HFC) having a GWP of 1000 or less. In refrigerating devices in which this lubricating oil composition for refrigerating machines is to be used, such as open-type automotive air conditioners, electric automotive air conditioners, gas heat pumps, air conditioners, refrigerators, vending machines, showcases, hot-water supply systems, and refrigeration/heating systems, refrigerant leakage can be detected stably over a long period of time. Thus, this lubricating oil composition for refrigerating machines is extremely effective in cases where an unsaturated fluorocarbon refrigerant with low stability is used in the various devices mentioned above.