Refrigerant composition

C - Chemistry – Metallurgy – 10 – M

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C10M 147/04 (2006.01) C07D 251/02 (2006.01) C09K 5/04 (2006.01) C10M 105/54 (2006.01) C10M 105/56 (2006.01) C10M 105/76 (2006.01) C10M 107/38 (2006.01) C10M 107/40 (2006.01) C10M 107/46 (2006.01) C10M 107/50 (2006.01) C10M 111/00 (2006.01) C10M 171/00 (2006.01)

Patent

CA 2026108

97 ABSTRACT Disclosed is a lubricant for use in a refrigera- tion system using a tetrafluoroethane refrigerant, which comprises a fluorine-containing compound repre- sented by the following formula: Image (I) wherein X represents a multiple bond-containing monovalent group, and A represents a mono-, bi- or trivalent unsubstituted or partially substi- tuted perfluorocarbon residue, a mono, bi- or trivalent unsubstituted or partially substitut- ed perfluoroether residue or a mono-, bi- or trivalent unsubstituted or partially substitut- ed perfluoropolyether residue. This lubricant has a good miscibility with a tetrafluo- roethane refrigerant as represented by HFC-134a over a wide range of temperatures ranging from the low temper- ature to the high temperature and is excellent in properties, such as heat resistance, lubricating properties, electrically insulating properties and viscosity-temperature characteristics.

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