USRE37938EExpiredUtility

Pentafluoropropane compositions

57
Assignee: DU PONTPriority: May 5, 1997Filed: May 26, 1999Granted: Dec 17, 2002
Est. expiryMay 5, 2017(expired)· nominal 20-yr term from priority
C09K 2205/22C11D 7/24C08J 2207/04C08J 9/149C09K 2205/12C11D 7/505C09K 5/045C09K 2205/32C09K 2205/11C11D 7/263C11D 7/5072C11D 7/5077C11D 7/28
57
PatentIndex Score
14
Cited by
8
References
12
Claims

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 3 ) 2 CHCH 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, particular removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
       1. 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; 79-99.5 weight percent 1,1,1,2,2-pentafluoropropane and 0.5-30 weight percent 1,1,1,3,4-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. 
     
     
       2. A binary composition of  claim 1  which has a maximum or minimum vapor pressure at 25° C. when compared to the vapor pressures at 25° C. of the individual components of the binary composition. 
     
     
       3. A process for producing refrigeration, comprising condensing a composition of  claim 1  and thereafter evaporating said composition in the vicinity of a body to be cooled. 
     
     
       4. A process for producing heat comprising condensing a composition of  claim 1  in the vicinity of a body to be heated, and thereafter evaporating said composition. 
     
     
       5. A process for preparing a polymer foam, comprising using a composition of  claim 1  as a blowing agent. 
     
     
       6. A process for cleaning a solid surface comprising treating said surface with a composition of  claim 1 . 
     
     
       7. 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 - 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;  21 - 71  weight percent  1 , 1 , 1 , 2 , 3   - pentafluoropropane 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.   
     
     
       8. A binary composition of  claim 7  which has a maximum or minimum vapor pressure at  25 ° C. when compared to the vapor pressures at  25 ° C. of the individual components of the binary composition. 
     
     
       9. A process for producing refrigeration, comprising condensing a composition of  claim 7  and thereafter evaporating said composition in the vicinity of a body to be cooled. 
     
     
       10. A process for producing heat comprising condensing a composition of  claim 7  in the vicinity of a body to be heated, and thereafter evaporating said composition. 
     
     
       11. A process for preparing a polymer foam, comprising using a composition of  claim 7  as a blowing agent. 
     
     
       12. A process for cleaning a solid surface comprising treating said surface with a composition of  claim 7 .

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