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AssigneeIdemitsu Kosan Co., Ltd.
InventorsTatsuya Egawa, Yasuhiro Kawaguchi, Kenji Mogami, Nobuaki Shimizu
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A lubricating oil for compression-type refrigerators which comprises as the main component thereof a polyvinyl ether compound having excellent compatibility with a hydrofluorocarbon or a hydrochlorofluorocarbon, such as 1,1,1,2-tetrafluoroethane and the like, which can be used as the refrigerant to replace compounds causing environmental pollution, such as dichlorofluoroethane and the like, and having an excellent lubricating property is disclosed. The lubricating oil for compression-type refrigerators comprises as the main component thereof a polyvinyl ether compound having the constituting units expressed by the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 are H or a hydrocarbon group of C.sub.1.about.8, R.sup.4 is a bivalent hydrocarbon group of C.sub.2.about.10, R.sup.5 is a hydrocarbon group of C.sub.1.about.10 and m is 0.about.10.
A lubricating oil composition for compression-type refrigerators which comprises a refrigerant and a lubricant, said lubricant comprising as the main component thereof a polyvinyl ether compound having the constituting unit expressed by the general formula (I):
Dependencies are inferred from the claim text.