Blend compositions of trifluoroiodomethane, tetrafluoroethane and difluoroethane
AssigneeIkon Corporation
InventorJonathan S. Nimitz
Life of this patent
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Abstract
Compositions suitable for use as refrigerants comprise blends of trifluoroiodomethane, 1,1,1,2-tetrafluoroethane and 1,1-difluoroethane. Preferred compositions are non-flammable and at least near azeotropic.
Claims22
A composition comprising a blend of from about 25 mol percent to about 40 mol percent trifluoroiodomethane, from about 25 mol percent to about 50 mol percent 1,1,1,2-tetrafluoroethane and from about 25 mol percent to about 50 mol percent 1,1-difluoroethane.
A method of providing refrigeration, comprising the steps of:
- (a) providing a refrigerating amount of a refrigerant composition in a cooling system, and
- (b) operating the cooling system,
- the refrigerant composition comprising a blend of from about 25 mol percent to about 40 mol percent trifluoroiodomethane, from about 25 mol percent to about 50 mol percent 1,1,1,2-tetrafluoroethane and from about 25 mol percent to about 50 mol percent 1,1-difluoroethane.
A composition, consisting essentially of a blend of from about 30 mol percent to about 40 mol percent trifluoroiodomethane, from about 25 mol percent to about 35 mol percent 1,1,1,2-tetrafluoroethane, and from about 25 mol percent to about 35 mol percent 1,1-difluoroethane, wherein the composition is nonflammable.
Dependencies are inferred from the claim text.