Refrigeration oils comprising esters of hindered alcohols

Details Refrigeration oils comprising esters of hindered alcohols Refrigeration oils comprising esters of hindered alcohols

1996-04-16

1998-01-06

Diamond, Alan

Compositions

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

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

508485, 62 84, 62502, 62468, C09K 504, C10M10538

Patent

active

057050864

ABSTRACT:
Improved refrigeration lubricants useful in compression refrigeration units are esters, exhibit an excellent balance of performance characteristics, notably in the combination of good miscibility, hydrolytic stablity, wear resistance coupled with a viscosity within the range required in many commercial refrigeration units. These esters are of a hindered dihydric or trihydric alcohol such as trimethylolpentanediol and a fatty acid, where at least 80 number percent of the acyl groups are straight chain groups.

REFERENCES:
patent: 5021179 (1991-06-01), Zehler et al.
patent: 5188750 (1993-02-01), Kogure et al.
patent: 5395544 (1995-03-01), Hagihara et al.
patent: 5425890 (1995-06-01), Yudin et al.
patent: 5429760 (1995-07-01), Doering et al.

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