Lubricating oil and compositions for the hydrogen-containing Flo

Details Lubricating oil and compositions for the hydrogen-containing Flo Lubricating oil and compositions for the hydrogen-containing Flo

1989-12-21

1994-11-29

Willis, Jr., Prince

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

252 52R, C09K 500

Patent

active

053687655

ABSTRACT:
A lubricating oil for hydrogen-containing Flon refrigerants, comprising as a main component a high-viscosity alkylbenzene having a kinematic viscosity at 40.degree. C. of 50 cSt or higher. Lubricating oil composition for hydrogen-containing Flon refrigerants, comprising as the main components the abovementioned high-viscosity alkylbenzene and (B) a mineral oil having a kinematic viscosity at 40.degree. C. of 50 cSt or higher, a pour point of -15.degree. C. or lower and a nitrogen content of 100 ppm or lower or (C) polyglycol having a kinematic viscosity at 40.degree. C. of 50 cSt or higher and a viscosity index of 150 or more. Furthermore, the above-mentioned high-viscosity alkylbenzene, the mineral oil and polyglycol can be used combinedly. In that combination use, mineral oils and polyglycols having kinematic viscosity at 40.degree. C. of lower than 50 cSt can also be used. The lubricating oil and lubricating oil compositions of the present invention are suitable lubricants for refrigerators, coolers, heat pumps and so forth using hydrogen-containing Flon compounds as refrigerants.

REFERENCES:
patent: 3092981 (1963-06-01), Begeman et al.
patent: 3609085 (1971-09-01), Langenfeld
patent: 3642634 (1972-02-01), Olund
patent: 4427561 (1984-01-01), Kusayanagi et al.
patent: 4983313 (1991-01-01), Kaneko et al.
patent: 5049292 (1991-09-01), Grasshoff et al.

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