Lubricating oil composition for refrigerant and method of use

Details Lubricating oil composition for refrigerant and method of use Lubricating oil composition for refrigerant and method of use

1993-09-17

1994-12-13

Willis, Jr., Prince

Compositions

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

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

252 52A, 252 52R, 62 84, 62114, C09K 500

Patent

active

053727371

ABSTRACT:
The present invention provides for a refrigeration lubricant for use with R-134a refrigerant. The lubrication composition of the invention combines a polyalkylene glycol synthetic lubricant or a polyolester synthetic lubricant with conventional mineral oil. The composition has enhanced lubricity which is unexpected in view of the fact that mineral oil is known to be incompatible with R-134a refrigerant. The lubricant compositions of the present invention are useful to replace the R-12 refrigerant lubricants which are presently in use.

REFERENCES:
patent: 4749502 (1988-06-01), Alexander et al.
patent: 5043085 (1991-08-01), Kinoshita et al.
patent: 5104560 (1992-04-01), Huster et al.
patent: 5136116 (1992-08-01), Ohhazama
patent: 5229025 (1993-07-01), Carter et al.
patent: 5254280 (1993-10-01), Thomas et al.

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