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US 8,465,664 B2Granted
Refrigerant composition
AssigneeRPL Holdings Limited
InventorsJohn Edward Poole, Richard Powell
Life of this patent
Estimating the term…
Abstract
A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.
Claims10
A refrigerant composition consisting essentially of a refrigerant consisting of:
- a non-flammable combination of hydrofluorocarbon and hydrocarbon components formulated as a replacement for chlorofluorocarbon refrigerant R22, consisting of a mixture of:
- R134a
- 25 to 10%
- R125
- 46 to 74.7%
- R143a
- 15 to 25%
- Isobutane
- 0.3 to 4%.
6 more elements
Dependencies are inferred from the claim text.