Refrigerator oil composition
AssigneeIdemitsu Kosan Co., Ltd.
InventorsMasato Kaneko, Tsuneo Konishi, Katsumi Ichitani
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Abstract
Disclosed is a refrigerator oil composition comprising at least one base oil selected from mineral oils and synthetic oils, and at least one polyether compound having a kinematic viscosity of from 200 to 10000 mm.sup.2 /sec at 100.degree. C. The composition has an excellent lubricating property, while specifically improving the lubricity of bearings. This is effective for preventing bearings from being seized and fatigued, and is suitable as a lubricating oil in refrigerators using hydrogen-containing Flon refrigerants, such as R134a, that do not cause environmental pollution.
Claims9
A refrigerator oil composition comprising:
- i) at least one base oil selected from the group consisting of mineral oils, synthetic oils and a mixture thereof, having a kinematic viscosity of from 1 to 100 mm.sup.2 /sec at 100.degree. C.;
- and
- ii) 0.01 to 10% by weight relative to the total weight of said composition of at least one polyether compound having a kinematic viscosity of from 200 to 10,000 mm.sup.2 /sec at 100.degree. C.
A refrigerant composition comprising:
- a) a refrigerant;
- and
- b) a refrigerator oil composition comprising:
- i) at least one base oil selected from the group consisting of mineral oils, synthetic oils and a mixture thereof, having a kinematic viscosity of from 1 to 100 mm.sup.2 /sec at 100.degree. C.;
- and
- ii) 0.01 to 10% by weight relative to the total weight of said composition of at least one polyether compound having a kinematic viscosity of from 200 to 10,000 mm.sup.2 /sec at 100.degree. C.
Dependencies are inferred from the claim text.