Compositions
AssigneeMexichem Fluor S.A.De C.V.
InventorsRobert E. Low, Andrew Sharratt
Life of this patent
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Abstract
The present invention provides a composition, such as a refrigerant composition comprising 1,1-difluoroethene (vinylidene fluoride, R-1132a); trifluoromethane (R-23); and one or more compound selected from hexafluoroethane (R-116), ethane (R-170) and carbon dioxide (R-744, CO2).
Claims17
A refrigeration system comprising a composition, the composition comprising:
- i) 1,1-difluoroethene (vinylidene fluoride, R-1132a);
- ii) trifluoromethane (R-23);
- and
- iii) one or more compound selected from hexafluoroethane (R-116) and ethane (R-170);
- and
- iv) about 4% to about 8% of dioxide (R-744, CO2).
A heat transfer device containing a composition, the composition comprising:
- i) 1,1-difluoroethene (vinylidene fluoride, R-1132a);
- ii) trifluoromethane (R-23);
- and
- iii) one or more compound selected from hexafluoroethane (R-116) and ethane (R-170);
- and
- iv) about 4% to about 8% of dioxide (R-744, CO2).
A method for reducing the environmental impact arising from the operation of a product comprising an existing compound or composition, the method comprising replacing at least partially the existing compound or composition with a composition comprising:
- i) 1,1-difluoroethene (vinylidene fluoride, R-1132a);
- ii) trifluoromethane (R-23);
- and
- iii) one or more compound selected from hexafluoroethane (R-116) and ethane (R-170);
- and
- iv) about 4% to about 8% of dioxide (R-744, CO2).
Dependencies are inferred from the claim text.