Patent ID: 6355186
Filing Date: 2002-03-12
Classification: C09K,C10M,C10N

Abstract:
A refrigerating machine oil composition comprising a refrigerant selected from the group consisting of hydrofluorocarbon refrigerants, fluorine-containing ether refrigerants, fluorine-free ether refrigerants, natural refrigerants and mixtures thereof and an alicylclic dicarboxylic acid ester compound having an alicylclic ring and two ester groups represented by formula (1) bonded to adjacent carbon atoms of the alicyclic ring:â€”COOR1â€ƒâ€ƒ(1) wherein R1 represents an alkyl group having 1-18 carbon atoms, said alicyclic dicarboxylic acid ester compound being obtained by using an alcohol component comprising:(a) at least one alcohol selected from a group consisting of fatty alcohols each having 1 to 5 carbon atoms; and (b) at least one alcohol selected from a group consisting of fatty wherein the mole ratio between said fatty alcohol (a) and fatty alcohol (b) employed as said alcohol component ranges from 1:99 to 99:1.