Refrigerating machine oil

Details Refrigerating machine oil Refrigerating machine oil

2005-03-02

2011-12-27

Caldarola, Glenn (Department: 1771)

Compositions

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

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

C252S067000, C548S255000, C208S078000, C508S438000

Reexamination Certificate

active

08083965

ABSTRACT:
The refrigerating machine oil of the present invention contains a mineral oil whose nitrogen content is not more than 50 ppm by mass and whose percent in aromatic ring structures (% CA) is from 5 to 25. With the refrigerating machine oil of the present invention, high levels of lubricity, stability, and miscibility with refrigerants are attained, with a good balance between these, so refrigerating and air conditioning machines can be operated stably over a longer period.

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International Search Report.
Japanese Office Action dated Nov. 17, 2009.
Japanese Office Action dated Jan. 5, 2010.
Korean Office Action dated May 20, 2011.

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