Working fluid composition for refrigerating machine
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United States of America Patent
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Apr 13, 1993
Grant Date -
N/A
app pub date -
Sep 10, 1991
filing date -
Sep 12, 1990
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Abstract
The present invention is directed to a working fluid composition for refrigerating machine comprising: (i) a hydrofluorocarbon, (ii) a compound having an epoxycyclohexyl group and/or a compound having an epoxycyclopentyl group, and (iii) an ester formed between a neopentylpolyol and a saturated branched aliphatic monocarboxylic acid having a carbon number of 7 to 9. The working fluid composition of the present invention is excellent in compatibility, lubricity, thermal stability and insulating property.
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