Refrigerant compositions

摘要

A non-azeotropic refrigerant composition is described which comprises (A) at least one compound selected from the group consisting of carbon dioxide and fluoromethane, (B) at least one compound selected from the group consisting of the hydrofluorocarbons and the hydrofluorocarbon ethers, and (C) at least one hydrocarbon. The boiling point of component (B) is at least 15 DEG C higher than the sublimation temperature of the carbon dioxide and/or the boiling point of the fluoromethane making up component (A).