| 摘要 |
A refrigerator oil composition for a refrigerant comprising an unsaturated fluorinated compound having carbon-carbon unsaturated bonds, represented by general formula (I): C2FpR4-p [in the formula, R independently represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p is an integer 1-3], the refrigerator oil composition comprising a base oil (P) containing at least one kind selected from a polyvinyl ether, a polyalkylene glycol, a poly(oxy)alkylene glycol or a copolymer of a monoether or polyvinyl ether of same, and a polyol ester, the dynamic viscosity of the base oil (P) at 100°C being 2.00-50.00mm2/s, and the hydroxyl value being not more than 5.0mgKOH/g. The refrigerator oil composition exhibits excellent compatibility with a refrigerant comprising an unsaturated fluorinated compound having specific C2 atoms, and exhibits excellent thermal stability. |
