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LUBRICATING OIL COMPOSITION FOR REFRIGERATORS AND COMPRESSORS WITH THE COMPOSITION

  • US 20100147016A1
  • Filed: 04/18/2008
  • Published: 06/17/2010
  • Est. Priority Date: 04/18/2007
  • Status: Active Grant
First Claim
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1. A lubricating oil composition/refrigerant combination, the refrigerant comprisingat least one fluorine-containing organic compound molecular formula (A):


  • CpOqFrRs



    (A)wherein R represents Cl, Br, I, or H;

    p, q, r, and s are integers of 1 to 6, 0 to 2, 1 to 14, and 0 to 13, respectively, with the proviso that when q is 0, p is 2 to 6, and at least one carbon-carbon unsaturated bond is present in the molecule, ora combination of the fluorine-containing organic compound with a saturated fluorinated hydrocarbon compound, andsaid lubricating oil composition/refrigerant combination comprising a base oil comprising as a main component a polyol ester compound obtained from a polyhydric alcohol selected from the group consisting of pentaerythritol, dipentaerythritol, trimethylolpropane and neopentyl glycol, and a C4 to C20 aliphatic monocarboxylic acid, wherein said polyol ester compound has an acid value of 0.02 mgKOH/g or less and a hydroxyl value of 5 mgKOH/g or less.

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