Polyol ester lubricants for hermetically sealed...

Details Polyol ester lubricants for hermetically sealed... Polyol ester lubricants for hermetically sealed...

C - Chemistry, Metallurgy

10

M

C10M 105/38 (2006.01) C09K 5/04 (2006.01) C10M 105/42 (2006.01) C10M 169/04 (2006.01) C10M 171/00 (2006.01)

Patent

CA 2136852

A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those us- ing chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some isopentanoic acid along with either or both of iso-nona- noic acid and dibasic acids such as adipic.

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