Compositions – Electrolytes for electrical devices
Patent
1989-03-31
1990-08-14
Chaudhuri, Olik
Compositions
Electrolytes for electrical devices
252 58, 252 68, 252 69, C09K 504
Patent
active
049485253
ABSTRACT:
A lubricating oil composition for a refrigerator using therein 1,1,1,2-tetrafluoroethane as the refrigerant, comprising as the base oil a polyoxyalkylene glycol monoether of the following general formula ##STR1## wherein R.sub.1 is an alkyl group having 1-18 carbon atoms, m is an integer of 5-70, R.sub.2 is an alkylene group having 2-4 carbon atoms and a ratio of 0-0.8 between (the number of --OR.sub.2 --group wherein R.sub.2 is ethylene group)/m in the molecule, the polyoxyalkylene glycol monoether having a specified pour point and a specified kinematic viscosity. In one embodiment, the lubricating oil composition may further comprise a specified phosphate and at least one kind of a specified epoxy compound to further improve the oil composition in properties.
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Hasegawa Hiroshi
Sasaki Umekichi
Chaudhuri Olik
McAvoy E.
Nippon Oil Co. Ltd.
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