Ternary azeotropes containing 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane 5 and compositions made therefrom
Assignee3M Innovative Properties Company
InventorJohn G. Owens
Life of this patent
Estimating the term…
Abstract
Compositions are provided that include blends that consist essentially of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, trans-1,2-dichloroethylene, and a third component. The third component is selected from methanol, ethanol, isopropanol, t-butanol, and 1-propanol. The blends form ternary azeotropes. Provided compositions can be useful for cleaning electronic parts, as coating solvent components, as heat transfer fluids, and as lubricants.
Claims19
A composition comprising a blend of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, trans-1,2-dichloroethylene, and a third component, wherein the third component is selected from:
- (i) methanol, wherein the composition, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 18.6 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, 73.0 weight percent of trans-1,2-dichloroethylene, and 8.4 weight percent of methanol, the distillate fraction boiling at about 40° C. at ambient pressure;
- (ii) ethanol, wherein the composition, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 20.2 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, 75.3 weight percent of trans-1,2-dichloroethylene, and 4.5 weight percent of ethanol, the distillate fraction boiling at about 45° C. at ambient pressure;
- (iii) isopropanol, wherein the composition, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 20.5 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, 77.3 weight percent of trans-1,2-dichloroethylene, and 2.2 weight percent of isopropanol, the distillate fraction boiling at about 45° C. at ambient pressure;
- (iv) t-butanol, wherein the composition, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of about 21.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, 77.8 weight percent of trans-1,2-dichloroethylene and 1.2 weight percent of t-butanol, the distillate fraction boiling at about 46° C. at ambient pressure;
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- (v) 1-propanol, wherein the composition, when fractionally distilled, forms a distillate fraction that is an azeotrope consisting essentially of 24.5 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, 74.9 weight percent of trans-1,2-dichloroethylene and 0.6 weight percent of 1-propanol, the distillate fraction boiling at about 46° C. at ambient pressure.
A composition that includes an azeotropic mixture comprising a blend of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, trans-1,2-dichloroethylene, and a third component wherein the blend is selected from:
- (i) about 18.6 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, about 73.0 weight percent of trans-1,2-dichloroethylene, and about 8.4 weight percent of methanol;
- (ii) about 20.2 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, about 75.3 weight percent of trans-1,2-dichloroethylene, and about 4.5 weight percent of ethanol;
- (iii) about 20.5 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, about 77.3 weight percent of trans-1,2-dichloroethylene, and about 2.2 weight percent of isopropanol;
- (iv) about 21.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, about 77.8 weight percent of trans-1,2-dichloroethylene, and about 1.2 weight percent of t-butanol;
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- (v) about 24.5 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, about 74.9 weight percent of trans-1,2-dichloroethylene, and about 0.6 weight percent of 1-propanol.
Dependencies are inferred from the claim text.