Polyol ester lubricants for high efficiency refrigerators

Details Polyol ester lubricants for high efficiency refrigerators Polyol ester lubricants for high efficiency refrigerators

C - Chemistry, Metallurgy

10

M

C10M 105/38 (2006.01) C09K 5/04 (2006.01) C10M 169/04 (2006.01) C10M 171/00 (2006.01)

Patent

CA 2136851

2136851 9324588 PCTABS00028 A nearly ideal lubricant for high efficiency home refrigerators, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is the ester of trimethylolpropane with pentanoic acid. Mixtures including substantial quantities of this ester along with some other esters of hindered polyols having no more than four hydroxyl groups and acyl groups with predominantly no more than five carbon atoms are also satisfactory.

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