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US 5,856,286 AGranted
Surfactants for use in drying and dry cleaning compositions
AssigneeAlliedSignal Inc.
InventorsDavid Nalewajek, Leonard Michael Stachura, Gary John Zyhowski
Life of this patent
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Abstract
The invention provides a fluorinated surfactant for use with halocarbon and hydrofluoroether solvents. Additionally, the invention provides drying, dry cleaning, and soil repellency compositions containing a halocarbon or hydrofluoroether and a fluorinated surfactant.
Claims27
A surfactant of the formula:
- ##STR5## wherein R' is hydrogen, C.sub.1 -C.sub.5 alkyl, aryl, alkylaryl, C.sub.1 -C.sub.5 fluoroalkyl, fluoroaryl, or fluoroalkylaryl, R.sub.1, R.sub.2, and R.sub.3 are the same or different and are hydrogen, linear or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR6## wherein R.sub.4 is a linear or branched C.sub.1 to C.sub.16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R.sub.1, R.sub.2, and R.sub.3 groups is hydrogen, n=1 to 16, and Rf is C.sub.m F.sub.2m+1 wherein m=2, 4, 6, 8, 10 or 12, and mixtures thereof.
A composition comprising a solvent comprising a halocarbon, a hydrofluoroether, or mixtures thereof and an effective amount of a surfactant of the formula:
- ##STR7## wherein R' is hydrogen, C.sub.1 -C.sub.5 alkyl, aryl, alkylaryl, C.sub.1 -C.sub.5 fluoroalkyl, fluoroaryl, fluoroalkylaryl, R.sub.1, R.sub.2, and R.sub.3 are the same or different and are hydrogen, linear or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR8## wherein R.sub.4 is a linear or branched C.sub.1 to C.sub.16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R.sub.1, R.sub.2, and R.sub.3 groups is hydrogen, n=1 to 16, and Rf is C.sub.m F.sub.2m+1 wherein m=2, 4, 6, 8, 10 or 12, or mixtures thereof.
Dependencies are inferred from the claim text.