摘要 |
A composition is described which comprises (A) at least one compound selected from the group consisting of carbon dioxide (CO2) and the hydrofluorocarbons having a boiling point in the range of from -80 DEG C to -40 DEG C, (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2-tetrafluoroethane (R-134a), 1,1,2,2-tetrafluoroethane (R-134) and 1,1-difluoroethane (R-152a), and (C) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3,3-hexafluoropropane (R-236fa) and 1,1,1,2,3,3-hexafluoropropane (R-236ea). The composition is useful as a refrigerant and may be used in automobile air conditioning and domestic refrigeration systems as a replacement for refrigerant R-12.
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申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC;POWELL, RICHARD, LLEWELLYN;CORR, STUART;MURPHY, FREDERICK, THOMAS;MORRISON, JAMES, DAVID |
发明人 |
POWELL, RICHARD, LLEWELLYN;CORR, STUART;MURPHY, FREDERICK, THOMAS;MORRISON, JAMES, DAVID |