Pentafluoropropane compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorsBarbara Haviland Minor, Tuneen E. C. Chisolm
Life of this patent
Estimating the term…
Abstract
The present invention relates to compositions of pentafluoropropane and a fluorinated propane having from 1 to 5 fluorine atoms; a hydrocarbon having from 1 to 5 carbon atoms; 1,1,1,4,4,4-hexafluorobutane, (CF.sub.3).sub.2 CHCH.sub.3, dimethyl ether; or 1,1,1,2,3,4,4,5,5,5-decafluoropentane. The compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.
Claims6
An azeotropic or azeotrope-like composition consisting essentially of:
- 1-99 weight percent 1,1,2,2,3-pentafluoropropane and 1-99 weight percent 1,1,1,2,3-pentafluoropropane;
- 1-36 weight percent 1,1,2,2,3-pentafluoropropane and 64-99 weight percent 1,1,1-trifluoropropane;
- 1-55 weight percent 1,1,2,2,3-pentafluoropropane and 45-99 weight percent 2,2-difluoropropane;
- 1-99 weight percent 1,1,2,2,3-pentafluoropropane and 1-99 weight percent 1,2-difluoropropane;
- 1-73 weight percent 1,1,2,2,3-pentafluoropropane and 27-99 weight percent butane;
- 1-55 weight percent 1,1,2,2,3-pentafluoropropane and 45-99 weight percent and cyclopropane;
- 1-65 weight percent 1,1,2,2,3-pentafluoropropane and 35-99 weight percent isobutane;
- 1-57 weight percent 1,1,2,2,3-pentafluoropropane and 43-99 weight percent propane;
- 70-99.5 weight percent 1,1,1,2,2-pentafluoropropane and 0.5-30 weight percent 1,1,1,2,3-pentafluoropropane;
- 74-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-26 weight percent 1,2,2,3-tetrafluoropropane;
- 75-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-25 weight percent 1,2-difluoropropane;
- 1-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-99 weight percent 2-fluoropropane;
- 59-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-41 weight percent 1-fluoropropane;
- 59-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-41 weight percent butane;
- 1-90 weight percent 1,1,1,2,2-pentafluoropropane and 10-99 weight percent cyclopropane;
- 1-89 weight percent 1,1,1,2,2-pentafluoropropane and 11-99 weight percent dimethyl ether;
- 40-99 weight percent 1,1,1,2,2-pentafluoropropane and 1-60 weight percent isobutane;
- 1-76 weight percent 1,1,1,2,2-pentafluoropropane and 24-99 weight percent propane;
- 1-69 weight percent 1,1,1,2,2-pentafluoropropane and 31-99 weight percent propylene;
- 1-45 weight percent 1,1,2,3,3-pentafluoropropane and 55-99 weight percent 2,2-difluoropropane;
- 1-55 weight percent 1,1,2,3,3-pentafluoropropane and 45-99 weight percent 1,2-difluoropropane;
- 1-54 weight percent 1,1,2,3,3-pentafluoropropane and 46-99 weight percent 1,1,1,4,4,4-hexafluorobutane;
- 1-56 weight percent 1,1,2,3,3-pentafluoropropane and 44-99 weight percent 1,1,1,2,3,4,4,5,5,5-decafluoropentane;
- 1-65 weight percent 1,1,2,3,3-pentafluoropropane and 35-99 weight percent butane;
- 1-54 weight percent 1,1,2,3,3-pentafluoropropane and 46-99 weight percent cyclopropane;
- 1-62 weight percent 1,1,2,3,3-pentafluoropropane and 38-99 weight percent isobutane;
- 1-57 weight percent 1,1,2,3,3-pentafluoropropane and 43-99 weight percent propane;
- 1-99 weight percent 1,1,1,2,3-pentafluoropropane and 1-99 weight percent 1,2,2-trifluoropropane;
- 1-43 weight percent 1,1,1,2,3-pentafluoropropane and 57-99 percent 1,1,1-trifluoropropane;
- 11-99 weight percent 1,1,1,2,3-pentafluoropropane and 1-89 weight percent 1,1,1,4,4,4-hexafluorobutane;
- 21-71 weight p and 29-79 weight percent butane;
- 1-56 weight percent 1,1,1,2,3-pentafluoropropane and 44-99 weight percent cyclopropane;
- 1-66 weight percent 1,1,1,2,3-pentafluoropropane and 34-99 weight percent isobutane;
- 1-57 weight percent 1,1,1,2,3-pentafluoropropane and 43-99 weight percent propane;
- 1-78 weight percent 1,1,1,3,3-pentafluoropropane and 22-99 weight percent butane;
- 1-60 weight percent 1,1,1,3,3-pentafluoropropane and 40-99 weight percent isobutane;
- or 58-99 weight percent 1,1,1,3,3-pentafluoropropane and 1-42 weight percent pentane.
Dependencies are inferred from the claim text.