Patent ID: 8460571

Claim:
A composition comprising a refrigerant and a lubricant composition, wherein the refrigerant comprises at least one kind of unsaturated fluorinated hydrocarbon compound selected from the group consisting of compounds represented by the following molecular formula (A) or comprises a combination of the at least one unsaturated fluorinated hydrocarbon compound and a saturated fluorinated hydrocarbon compound, C p O q F r R s (A), wherein R represents H; “p” represents an integer of 2 to 6, “q” represents 0, “r” represents an integer of 1 to 12, and “s” represents an integer of 0 to 11; and one or more carbon-carbon unsaturated bonds are included in a molecule, and the lubricant composition comprises a base oil comprising, as a main component, a polyoxyalkylene glycol derivative represented by the following formula (I) and having a hydroxyl number of 5 mgKOH/g or less, R 1 —[(OR 2 ) m —OR 3 ] n (I) wherein R 1 represents a hydrogen atom, a hydrocarbon group having 1 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms, a hydrocarbon group having 2 to 6 binding sites and 1 to 10 carbon atoms, or an oxygen-containing hydrocarbon group having 1 to 10 carbon atoms; R 2 represents an alkylene group having 2 to 4 carbon atoms; R 3 represents a hydrogen atom, a hydrocarbon group having 1 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms, or an oxygen-containing hydrocarbon group having 1 to 10 carbon atoms; “n” represents an integer of 1 to 6; and “m” represents a number with which an average value of “m×n” becomes 6 to 80, provided that at least one of R 1 and R 3 represents an alkyl group.