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US 7,629,307 B2Granted
Ternary azeotropic-like compositions with 1,1,1,2,3,3-hexafluoro-3-methoxy-propane and trans-1,2-dichloroethylene
Assignee3M Innovative Properties Company
InventorJohn G. Owens
Life of this patent
Estimating the term…
Abstract
Ternary azeotrope and azeotrope-like compositions containing 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and a third component, and methods of using azeotropes and azeotrope-like compositions to clean substrates, deposit coatings, transfer thermal energy, and lubricate working operations are described.
Claims16
An azeotrope-like composition comprising a blend of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene, and a third component, wherein the composition is selected from:
- (i) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and methanol, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 52.9 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 41.6 weight percent of trans-1,2-dichloroethylene and 5.5 weight percent of methanol that boils about 37.9° C. at 734 torr;
- or
- (ii) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and ethanol, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 50.9 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 46.5 weight percent of trans-1,2-dichloroethylene and 2.6 weight percent of ethanol that boils about 40.7° C. at 733 torr;
- or
- (iii) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and isopropanol when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 50.5 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 48.2 weight percent of trans-1,2-dichloroethylene and 1.3 weight percent of isopropanol that boils about 41.5° C. at 731 torr;
- or
- (iv) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and trifluoroethanol when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 44.6 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 44.7 weight percent of trans-1,2-dichloroethylene and 10.7 weight percent of trifluoroethanol that boils about 40.6° C. at 735 torr;
- or
- (v) a blend consisting essentially of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and pentafluoropropanol when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of 44.2 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 53.1 weight percent of trans-1,2-dichloroethylene and 2.7 weight percent of pentafluoropropanol that boils about 42.1° C. at 734 torr.
6 more elements
A ternary azeotrope comprising a blend of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene, and a third component wherein the blend is selected from:
- (i) a blend consisting essentially of 52.9 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 41.6 weight percent of trans-1,2-dichloroethylene and 5.5 weight percent of methanol that boils about 37.9° C. at 734 torr;
- or
- (ii) a blend consisting essentially of 50.9 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 46.5 weight percent of trans-1,2-dichloroethylene and 2.6 weight percent of ethanol that boils about 40.7° C. at 733 torr;
- or
- (iii) a blend consisting essentially of 50.5 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 48.2 weight percent of trans-1,2-dichloroethylene and 1.3 weight percent of isopropanol that boils about 41.5° C. at 731 torr;
- or
- (iv) a blend consisting essentially of 44.6 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 44.7 weight percent of trans-1,2-dichloroethylene and 10.7 weight percent of trifluoroethanol that boils about 40.6° C. at 735 torr;
- or
- (v) a blend consisting essentially of 44.2 weight percent of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, 53.1 weight percent of trans-1,2-dichloroethylene and 2.7 weight percent of pentafluoropropanol that boils about 42.1° C. at 734 torr.
6 more elements
Dependencies are inferred from the claim text.