Claims
- 1. A method of drying an substrate which comprises:
- A) contacting a substrate with a composition comprising at least one halocarbon and at least one surfactant of the formulae: ##STR8## wherein R.sub.1, R.sub.2, R.sub.3 are the same or different and are linear or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl, alkylaryl or ##STR9## where R.sub.8 is hydrogen or a linear or branched C.sub.1 to C.sub.16 alkyl or fluoroalkyl group;
- R.sub.4 is C.sub.1 to C.sub.18 perfluoroalkyl;
- n is from 1 to 4;
- R.sub.5, R.sub.6 and R.sub.7 are the same or different and are H, linear, or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl or alkylaryl group or ##STR10## where R.sub.9 is linear or branched a C.sub.1 to C.sub.16 alkyl group provided not more than one of R.sub.5, R.sub.6 and R.sub.7 is H; and
- wherein the surfactant is soluble in the halocarbon; and
- B) evaporating the composition.
- 2. A method of drycleaning an article which comprises:
- A) contacting an article with a composition comprising at least one halocarbon and at least one surfactant of the formulae: ##STR11## wherein R.sub.1, R.sub.2, R.sub.3 are the same or different and are linear or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl, alkylaryl or ##STR12## where R.sub.8 is hydrogen or a linear or branched C.sub.1 to C.sub.16 alkyl or fluoroalkyl group;
- R.sub.4 is C.sub.1 to C.sub.18 perfluoroalkyl;
- n is from 1 to 4;
- R.sub.5, R.sub.6 and R.sub.7 are the same or different and are H, linear, or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl or alkylaryl group or ##STR13## where R.sub.9 is linear or branched a C.sub.1 to C.sub.16 alkyl group provided not more than one of R.sub.5, R.sub.6 and R.sub.7 is H; and
- wherein the surfactant is soluble in the halocarbon; and
- B) evaporating the composition.
- 3. A method of imparting soil repellency to a fabric which comprises
- A) contacting the fabric with a composition comprising at least one halocarbon and at least one surfactant of the formulae: ##STR14## wherein R.sub.1, R.sub.2, R.sub.3 are the same or different and are linear or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl, alkylaryl or ##STR15## where R.sub.8 is hydrogen or a linear or branched C.sub.1 to C.sub.16 alkyl or fluoroalkyl group;
- R.sub.4 is C.sub.1 to C.sub.18 perfluoroalkyl;
- n is from 1 to 4;
- R.sub.5, R.sub.6 and R.sub.7 are the same or different and are H, linear, or branched C.sub.1 to C.sub.16 alkyl, fluoroalkyl or alkylaryl group or ##STR16## where R.sub.9 is linear or branched a C.sub.1 to C.sub.16 alkyl group provided not more than one of R.sub.5, R.sub.6 and R.sub.7 is H; and
- wherein the surfactant is soluble in the halocarbon; and
- B) evaporating the halocarbon.
Parent Case Info
This application is a division of application Ser. No. 08/355,587, filed Dec. 14, 1996 now U.S. Pat. No. 5,610,128.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
Country |
7-213595 |
Sep 1991 |
JPX |
1269095 |
Mar 1972 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Haywood, L., et al. "Amine(Polyfluoroalkoxyacyl)Imide Surfactants," Journal of fluorine Chemistry, 51(1991) 419-431. (Month Unknown). |
Divisions (1)
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Number |
Date |
Country |
Parent |
355587 |
Dec 1996 |
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