Refrigerating machine oil, working fluid composition for refrigerating machine, and method for producing refrigerating machine oil
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United States of America Patent
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Sep 24, 2024
Grant Date -
May 4, 2023
app pub date -
Apr 27, 2021
filing date -
Apr 30, 2020
priority date (Note) -
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Abstract
An aspect of the present invention provides a refrigerating machine oil containing a mixed base oil of a first hydrocarbon base oil having a kinematic viscosity at 40° C. of less than 6 mm2/s and a second hydrocarbon base oil having a kinematic viscosity at 40° C. of 6 mm2/s or more, wherein a (A)/(B) ratio is more than 1 and 1.5 or less, wherein (A) is a kinematic viscosity at 40° C. of the mixed base oil, and (B) is the kinematic viscosity at 40° C. of the first hydrocarbon base oil.
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