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Title:
REFRIGERATOR OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1992/019704
Kind Code:
A1
Abstract:
A refrigerator oil composition comprising 1,1,1,2-tetrafluoroethane as a refrigerant and a polyol ester compatible with the refrigerant as an oil, wherein the polyol ester contains a phenolic antioxidant, a specified amine compound and a phosphoric triester to prevent the hydrolysis of the polyol ester, thus preventing the corrosion of rollers, vanes, etc., of a sliding member due to the hydrolysis of the polyol ester and preventing the abrasion of the rollers, vanes, etc.

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Inventors:
SUNAGA TAKASHI (JP)
KOMATSUBARA TAKEO (JP)
Application Number:
PCT/JP1992/000504
Publication Date:
November 12, 1992
Filing Date:
April 20, 1992
Export Citation:
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Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
C09K5/04; C10M169/04; C10M171/00; C10N20/00; C10N30/12; C10N40/30; (IPC1-7): C10M169/04; C10N20/00; C10N40/30
Foreign References:
JPH02140296A1990-05-29
JPH02102296A1990-04-13
JPH02140297A1990-05-29
JPH02140298A1990-05-29
JPH02276894A1990-11-13
JPH02281098A1990-11-16
JPH0388892A1991-04-15
Other References:
See also references of EP 0538478A1
Download PDF:
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