Cleaning compositions and methods comprising a hydrofluoro-olefin or hydrochlorofluoro-olefin solvent
AssigneeHoneywell International Inc.
InventorsRajat Basu, Gary Zyhowski, Kane Cook, David Nalewajek
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Abstract
The invention provides solvent and cleaning compositions comprising an ionic surfactant, which preferably has a fluorinated portion thereof, and a solvent selected from hydrofluoro- and/or hydrochlorofluoro-olefins. Additionally, the invention provides drying, dry cleaning, and soil repellency compositions containing a hydrofluoro- or hydrochlorofluoro-olefin and said surfactant. Additionally, the invention provides drying compositions containing a hydrofluoro-olefin or hydrochlorofluoro-olefin and an alcohol such as methanol, ethanol or isopropanol.
Claims23
A composition comprising effective amounts of at least one hydrofluoro-olefin or hydrochlorofluoro-olefin solvent and at least one, hydrophobic, fluorine-containing surfactant soluble in the hydrofluoro-olefin or hydrochlorofluoro-olefin solvent, wherein the surfactant comprises formula I or formula II:
- wherein R1 is hydrogen, C1-C5 alkyl, aryl, alkylaryl, C1-C5 fluoroalkyl, fluoroaryl, or fluoroalkylaryl, R1, R2 and R3 may be the same or different and are hydrogen, linear or branched C1-C16 alkyl, fluoroalkyl, aryl or alkylaryl or
- wherein R4 is a linear or branched C1-C16 alkyl or fluoroalkyl group, provided that not more than one of the R1, R2, and R3 groups is hydrogen, n is 1 to 16, and Rf is CmF2m+1 wherein m is 2, 4, 6, 8, 10 or 12 or mixtures of such surfactant compositions.
A composition comprising effective amounts of at least one hydrofluoro-olefin or hydrochlorofluoro-olefin solvent and at least one, hydrophobic, fluorine-containing surfactant soluble in the hydrofluoro-olefin or hydrochlorofluoro-olefin solvent, wherein the surfactant comprises formula III or formula IV:
- wherein R1, R2, R3, can be the same or different and are linear or branched C1 to C16 alkyl, fluoroalkyl, alkylaryl or
- where R8 is hydrogen or a linear or branched C1 to C16 alkyl or fluoroalkyl group;
- R4 is C1 to C18 perfluoroalkyl;
- n is from 1 to 4;
- R5, R6 and R7 can be the same or different and are H, linear or branched C1 to C16 alkyl, fluoroalkyl or alkylaryl group
- or
- where R9 is a linear or branched a C1 to C16 alkyl or fluoroalkyl group provided not more than one of R5, R6 and R7 is H, and mixtures of such surfactants.
Dependencies are inferred from the claim text.