Azeotropic compositions comprising fluorinated olefins for cleaning applications

Abstract

The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z—C 3 F 7 CH═CHC 3 F 7 , and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C 4 F 9 OCH 3 , C 4 F 9 OC 2 H 5 , HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.

1 . An azeotropic or azeotrope-like composition comprising a fluorinated olefin having the formula E- or Z—C 3 F 7 CH═CHC 3 F 7 , and at least one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes and combinations thereof. 
     
     
         2 . An azeotropic or azeotrope-like composition as in  claim 1  wherein the at least one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, and alkanes is either methanol, ethanol, iso-propanol, n-propanol, cis-1,2-dichloroethylene, n-propyl bromide, C 4 F 9 OCH 3 , C 4 F 9 OC 2 H 5 , HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. 
     
     
         3 . An azeotropic or azeotrope-like composition as in  claim 1 , wherein the composition comprises an azeotropic or azeotrope-like composition selected from the group consisting of:
 about 32 to about 80 weight percent F33E and about 68 to about 20 weight percent n-propylbromide;   about 1 to about 99 weight percent F33E and about 99 to about 1 weight percent C 4 F 9 OC 2 H 5 ;   about 28 to about 79 weight percent F33E and about 21 to about 72 weight percent cis-1,2-dichloroethylene;   about 1 to about 99 weight percent F33E and about 1 to about 99 weight percent heptane;   about 1 to about 70 weight percent F33E, about 30 to about 85 weight percent trans-1,2-dichloroethylene, and about 1 to about 30 weight percent methanol;   about 1 to about 70 weight percent F33E, about 30 to about 85 weight percent trans-1,2-dichloroethylene, and about 1 to about 25 weight percent ethanol;   about 1 to about 70 weight percent F33E, about 30 to about 80 weight percent trans-1,2-dichloroethylene, and about 1 to about 70 weight percent C 4 F 9 OCH 3 ;   about 1 to about 70 weight percent F33E, about 30 to about 80 weight percent trans-1,2-dichloroethylene, and about 1 to about 70 weight percent C 4 F 9 OC 2 H 5 ;   about 1 to about 70 weight percent F33E, about 20 to about 60 weight percent trans-1,2-dichloroethylene, and about 1 to about 80 weight percent HFC-43-10mee;   about 1 to about 60 weight percent F33E, about 10 to about 60 weight percent trans-1,2-dichloroethylene, and about 1 to about 80 weight percent HFC-365mfc;   about 1 to about 80 weight percent F33E, about 1 to about 95 weight percent trans-1,2-dichloroethylene, and about 1 to about 99 weight percent cis-1,2-dichloroethylene.   
     
     
         4 . An azeotropic or azeotrope-like composition as in  claim 1 , wherein the composition comprises an azeotropic or azeotrope-like composition selected from the group consisting of:
 51.8 weight percent F33E and 48.2 weight percent n-propylbromide having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 62.9° C.;   45.4 weight percent F33E and 54.5 weight percent cis-1,2-dichloroethylene having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 54.5° C.;   74.8 weight percent F33E and 25.2 weight percent heptane having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 89.8° C.;   30.2 weight percent F33E, 62.1 weight percent trans-1,2-dichloroethyene, and 7.7 weight percent methanol having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 38.8° C.;   31.4 weight percent F33E, 64.4 weight percent trans-1,2-dichloroethyene, and 4.2 weight percent ethanol having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 43.1° C.;   
     
     
         5 . A process for cleaning, comprising:
 a. contacting a surface comprising a residue with the composition of  claim 1  and   b. recovering the surface from the composition.   
     
     
         6 . The composition of  claim 1  further comprising an aerosol propellant. 
     
     
         7 . The composition of  claim 6  wherein the aerosol propellant is selected from the group consisting of air, nitrogen, carbon dioxide, difluoromethane, trifluoromethane, difluoroethane, trifluoroethane, tetrafluoroethane, pentafluoroethane, hexafluoropropane, heptafluoropropane, pentafluoropropene, n-butane, iso-butane and propane. 
     
     
         8 . The process of  claim 5  wherein said residue comprises an oil. 
     
     
         9 . The process of  claim 5  wherein said residue comprises a rosin flux. 
     
     
         10 . The process of  claim 5  wherein said surface is an integrated circuit device.