US5856286A
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US
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Surfactants for use in drying and dry cleaning compositions
Assignee: KSU INSTITUTE FOR COMMERCIALIZATION
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Filing: 1997-06-23
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Granted: 1999-01-05
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Expires: 2017-06-23
Abstract
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.
Inventors
- 👤 David Nalewajek
- 👤 Leonard Michael Stachura
- 👤 Gary John Zyhowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:55
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/098; C07F9/12; C11; C11D; C11D1/00; C11D1/004; C11D1/006; C11D3/00; C11D3/16; C11D3/24; C11D3/245; C11D3/43
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
120 words
A surfactant of the formula: ##STR5## wherein R' is hydrogen, C 1 -C 5 alkyl, aryl, alkylaryl, C 1 -C 5 fluoroalkyl, fluoroaryl, or fluoroalkylaryl, R 1 , R 2 , and R 3 are the same or different and are hydrogen, linear or branched C 1 to C 16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR6## wherein R 4 is a linear or branched C 1 to C 16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R 1 , R 2 , and R 3 groups is hydrogen, n=1 to 16, and Rf is C m F 2m+1 wherein m=2, 4, 6, 8, 10 or 12, and mixtures thereof.
Claim 2
Dependent Claim
120 words
A surfactant of the formula: ##STR5## wherein R' is hydrogen, C 1 -C 5 alkyl, aryl, alkylaryl, C 1 -C 5 fluoroalkyl, fluoroaryl, or fluoroalkylaryl, R 1 , R 2 , and R 3 are the same or different and are hydrogen, linear or branched C 1 to C 16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR6## wherein R 4 is a linear or branched C 1 to C 16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R 1 , R 2 , and R 3 groups is hydrogen, n=1 to 16, and Rf is C m F 2m+1 wherein m=2, 4, 6, 8, 10 or 12, and mixtures thereof.
Claim 3
Dependent Claim
10 words
The surfactant of claim 1 wherein n=2, 3 or 4.
Claim 4
Dependent Claim
18 words
The surfactant of claim 1 wherein n=2 and Rf is alphafluoropolydifluoromethylene with an average m value of 6-8.
Claim 5
Dependent Claim
26 words
The surfactant of claim 1 wherein the surfactant is an oligomeric perfluoroalkylpyridinium salt of 4-tert-octylphenyl-monoacid phosphates, an oligomeric perfluoroalkylpyridinium salt of 4-tert-octylphenyl-diacid phosphates, or mixtures thereof.
Claim 6
Dependent Claim
137 words
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 1 -C 5 alkyl, aryl, alkylaryl, C 1 -C 5 fluoroalkyl, fluoroaryl, fluoroalkylaryl, R 1 , R 2 , and R 3 are the same or different and are hydrogen, linear or branched C 1 to C 16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR8## wherein R 4 is a linear or branched C 1 to C 16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R 1 , R 2 , and R 3 groups is hydrogen, n=1 to 16, and Rf is C m F 2m+1 wherein m=2, 4, 6, 8, 10 or 12, or mixtures thereof.
Claim 7
Dependent Claim
137 words
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 1 -C 5 alkyl, aryl, alkylaryl, C 1 -C 5 fluoroalkyl, fluoroaryl, fluoroalkylaryl, R 1 , R 2 , and R 3 are the same or different and are hydrogen, linear or branched C 1 to C 16 alkyl, fluoroalkyl, aryl or alkylaryl, or ##STR8## wherein R 4 is a linear or branched C 1 to C 16 alkyl or fluoroalkyl group, provided that the anion is organic, that not more than one of the R 1 , R 2 , and R 3 groups is hydrogen, n=1 to 16, and Rf is C m F 2m+1 wherein m=2, 4, 6, 8, 10 or 12, or mixtures thereof.
Claim 8
Dependent Claim
10 words
The composition of claim 5 wherein in=2, 3 or 4.
Claim 9
Dependent Claim
18 words
The composition of claim 5 wherein n=2 and Rf is alphafluoropolydifluoromethylene with an average m value of 6-8.
Claim 10
Dependent Claim
26 words
The composition of claim 5 wherein the surfactant is an oligomeric perfluoroalkylpyridinium salt of 4-tert-octylphenyl-monoacid phosphates, an oligomeric perfluoroalkylpyridinium salt of 4-tert-octylphenyl-diacid phosphates, or mixtures thereof.
Claim 11
Dependent Claim
33 words
The compositions of claims 5, 6, 7, or 8 wherein the halocarbon is a linear halocarbon, a branched halocarbon, a halocarbon containing a heteroatom that is oxygen, nitrogen, or sulfur, or mixtures thereof.
Claim 12
Dependent Claim
65 words
The compositions of claim 9 wherein the halocarbon is of the formula C x Z 2x+2 , wherein x is 2 to 36 and Z may be hydrogen, bromine, chlorine, fluorine, and combinations thereof and the hydrofluoroether is of the formula C x F 2x+1 OC m H 2m+1 wherein x is at least 2 to 16 and m is at least 1 to 16.
Claim 13
Dependent Claim
44 words
The composition of claim 9 wherein the halocarbon is an isomer of pentafluoropropane, an isomer of hexafluorobutane, an isomer of pentafluorobutane, an isomer of octafluoropentane, an isomer of heptafluoropentane, an isomer of heptafluorobutane, an isomer of dichlorofluoroethane, an isomer of dichlorotrifluoroethane, or mixtures thereof.
Claim 14
Dependent Claim
40 words
The composition of claim 11 wherein the hydrofluoroether is 1,1,1,2,3,3-pentafluoropropylmethyl ether, isomers of hydrofluorocarbon ethers of hexafluorobutane, an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether, an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether and 1,2-trans-dichloroethylene, or mixtures thereof.
Claim 15
Dependent Claim
10 words
The composition of claim 9 wherein the halocarbon is 1,1-dichloro-1-fluoroethane.
Claim 16
Dependent Claim
10 words
The composition of claim 9 wherein the halocarbon is 2,2-dichloro-1,1,1-trifluoroethane.
Claim 17
Dependent Claim
10 words
The composition of claims 12 wherein the halocarbon is 1,1-dichloro-1-fluoroethane.
Claim 18
Dependent Claim
10 words
The composition of claim 12 wherein the halocarbon is 2,2-dichloro-1,1,1-trifluoroethane.
Claim 19
Dependent Claim
55 words
The compositions of claims 5, 6, 7, or 8 wherein the hydrofluoroether is a linear hydrofluoroether, a branched hydrofluoroether, or a cyclic hydrofluoroether and wherein the hydrofluoroethers are of the formula C x F 2x+1 OC m H 2m+1 wherein x is at least 2 to 16 and m is at least 1 to 16.
Claim 20
Dependent Claim
40 words
The compositions of claims 17 wherein the hydrofluoroether is 1,1,1,2,3,3-pentafluoropropylmethyl ether, isomers of hydrofluorocarbon ethers of hexafluorobutane, an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether, an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether and 1,2-trans-dichloroethylene, or mixtures thereof.
Claim 21
Dependent Claim
18 words
The composition of claim 17 wherein the hydrofluoroether is an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether.
Claim 22
Dependent Claim
20 words
The composition of claim 17 wherein the hydrofluoroether is an isomeric mixture of methyl nonafluorobutylether and methyl nonafluoroisobutylether and 1,2-trans-dichloroethylene.
Claim 23
Dependent Claim
10 words
The composition of claim 19 wherein the halocarbon is 1,1-dichloro-1-fluoroethane.
Claim 24
Dependent Claim
10 words
The composition of claim 20 wherein the halocarbon is 1,1-dichloro-1-fluoroethane.
Claim 25
Dependent Claim
10 words
The composition of claim 19 wherein the halocarbon is 2,2-dichloro-1,1,1-trifluoroethane.
Claim 26
Dependent Claim
10 words
The composition of claim 20 wherein the halocarbon is 2,2-dichloro-1,1,1-trifluoroethane.
Claim 27
Dependent Claim
29 words
A method for drying a surface of a substrate comprising the steps of contacting the substrate with the composition of claim 5; and removing the composition from the substrate.
Claim 28
Dependent Claim
25 words
A method for dry cleaning comprising the steps of contacting the substrate with the composition of claim 5; and removing the composition from the substrate.
Claim 29
Dependent Claim
29 words
A method for imparting soil repellency to a fabric comprising the steps of contacting the fabric with the composition of claim 5; and removing the solvent from the fabric.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-04 | 2002-07-06 | 2003-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-04 | 2006-07-06 | 2007-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-04 | 2010-07-06 | 2011-01-05 | $7700.00 | Window Closed / Lapsed |