US4469603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-active compositions and method for dispersing oil slicks
Assignee: Cosden Technology Inc
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Filing: 1982-08-06
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Granted: 1984-09-04
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Expires: 2002-08-06
Abstract
Abstract Surface active compositions for dispersing oil slicks consisting essentially of specified proportions of a fatty acid sorbitan monoester, a polyalkyleneoxide adduct of a fatty acid sorbitan monoester, an aqueous solution of a dialkylsulfosuccinate salt, a glycol monoether and water and a method for dispersing an oil slick on water comprising applying a surface active composition of the above-described type to the surface of the oil slick.
Inventors
- 👤 Andre Lepain
- 👤 Alain G. R. Charlier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:52
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/32; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10S516/00; Y10S516/01; Y10S516/02; Y10S516/03; Y10S516/04
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
189 words
A composition for dispersing oil slicks consisting essentially of: from about 65 to 75 weight percent of a blend of a fatty acid sorbitan monoester said fatty acid is an aliphatic monocarboxylic acid containing from 10 to 20 carbon atoms, a polyalkyleneoxide adduct of a fatty acid sorbitan monoester and a 75% aqueous solution of an alkaline salt of a dialkylsulfosuccinate, the weight percentage of said salt, based on dry salt and on dry blend, being from about 35 to about 40 percent and the weight ratio of said fatty acid sorbitan monoester to said adduct being from about 60:40 to about 40:60, said blend having an HLB in the range from about 9 to about 10.5 and from about 35 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoether of a glycol, the weight ratio of water to said ether in said mixture being from about 60:40 to about 40:60, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to about 575 centistokes at -10° C.
Claim 2
Dependent Claim
189 words
A composition for dispersing oil slicks consisting essentially of: from about 65 to 75 weight percent of a blend of a fatty acid sorbitan monoester said fatty acid is an aliphatic monocarboxylic acid containing from 10 to 20 carbon atoms, a polyalkyleneoxide adduct of a fatty acid sorbitan monoester and a 75% aqueous solution of an alkaline salt of a dialkylsulfosuccinate, the weight percentage of said salt, based on dry salt and on dry blend, being from about 35 to about 40 percent and the weight ratio of said fatty acid sorbitan monoester to said adduct being from about 60:40 to about 40:60, said blend having an HLB in the range from about 9 to about 10.5 and from about 35 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoether of a glycol, the weight ratio of water to said ether in said mixture being from about 60:40 to about 40:60, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to about 575 centistokes at -10° C.
Claim 3
Dependent Claim
13 words
A composition according to claim 1, wherein said fatty acid is oleic acid.
Claim 4
Dependent Claim
16 words
A composition according to claim 1, wherein said dialkylsulfosuccinate salt is the sodium salt of di(ethylhexyl)sulfosuccinate.
Claim 5
Dependent Claim
41 words
A composition according to claim 1, wherein said glycol monoether is a monoalkylether of a glycol selected from the group consisting of monoethylene glycol, diethylene glycol, monopropylene glycol and dipropylene glycol; said alkyl radical containing from 1 to 4 carbon atoms.
Claim 6
Dependent Claim
14 words
A composition according to claim 4, wherein said alkyl radical is a methyl radical.
Claim 7
Dependent Claim
14 words
A composition according to claim 4, wherein said alkyl radical is a butyl radical.
Claim 8
Dependent Claim
30 words
A composition according to claim 4, wherein said glycol monoether is selected from the group consisting of monoethylene glycol monobutyl ether, diethylene glycol monobutyl ether and diethylene glycol monomethyl ether.
Claim 9
Dependent Claim
21 words
A composition according to claim 1, wherein said blend has an HLB in the range from about 9.4 to about 10.5.
Claim 10
Dependent Claim
173 words
A composition for dispersing oil slicks consisting essentially of: from about 70 to 75 weight percent of a blend of oleic acid sorbitan monoester, a polyethyleneoxide adduct of oleic acid sorbitan monoester and a 75% aqueous solution of di(ethylhexyl)sulfosuccinate sodium salt, the weight percentage of said salt, based on dry salt and on dry blend, being from 35 to 40 percent and the weight ratio of oleic acid sorbitan monoester to said polyethylene oxide adduct being about 55:45, said blend having an HLB in the range from about 9 to about 10.5 and from about 30 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoalkylether of a glycol selected from the group comprising monoethylene glycol and diethylene glycol and monopropylene glycol and dipropylene glycol in which the alkyl radical contains from 1 to 4 carbon atoms, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 11
Dependent Claim
173 words
A composition for dispersing oil slicks consisting essentially of: from about 70 to 75 weight percent of a blend of oleic acid sorbitan monoester, a polyethyleneoxide adduct of oleic acid sorbitan monoester and a 75% aqueous solution of di(ethylhexyl)sulfosuccinate sodium salt, the weight percentage of said salt, based on dry salt and on dry blend, being from 35 to 40 percent and the weight ratio of oleic acid sorbitan monoester to said polyethylene oxide adduct being about 55:45, said blend having an HLB in the range from about 9 to about 10.5 and from about 30 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoalkylether of a glycol selected from the group comprising monoethylene glycol and diethylene glycol and monopropylene glycol and dipropylene glycol in which the alkyl radical contains from 1 to 4 carbon atoms, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 12
Dependent Claim
14 words
A composition according to claim 9, wherein said alkyl radical is a methyl radical.
Claim 13
Dependent Claim
14 words
A composition according to claim 9, wherein said alkyl radical is a butyl radical.
Claim 14
Dependent Claim
30 words
A composition according to claim 9, wherein said glycol monoether is selected from the group consisting of monoethylene glycol monobutyl ether, diethylene glycol monobutyl ether and diethylene glycol monomethyl ether.
Claim 15
Dependent Claim
20 words
A composition according to claim 9, wherein said blend has an HLB in the range from about 9.4 to 10.5.
Claim 16
Independent Claim
203 words
A method for dispersing an oil slick which comprises spraying said slick with an effective oil slick dispersing amount of a composition consisting essentially of: from about 65 to 75 weight percent of a blend of a fatty acid sorbitan monoester, said fatty acid is an aliphatic monocarboxylic acid containing from 10 to 20 carbons a polyalkyleneoxide adduct of a fatty acid sorbitan monoester and a 75% aqueous solution of an alkaline salt of a dialylsulfosuccinate, the weight percentage of said salt, based on dry salt and on dry blend, being from about 35 to about 40 percent and the weight ratio of said fatty acid sorbitan monoester to said adduct being from about 60:40 to about 40:60, said blend having an HLB in the range from about 9 to about 10.5 and from about 35 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoether of a glycol, the weight ratio of water to said ether in said mixture being from about 60:40 to about 40:60, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 17
Independent Claim
203 words
A method for dispersing an oil slick which comprises spraying said slick with an effective oil slick dispersing amount of a composition consisting essentially of: from about 65 to 75 weight percent of a blend of a fatty acid sorbitan monoester, said fatty acid is an aliphatic monocarboxylic acid containing from 10 to 20 carbons a polyalkyleneoxide adduct of a fatty acid sorbitan monoester and a 75% aqueous solution of an alkaline salt of a dialylsulfosuccinate, the weight percentage of said salt, based on dry salt and on dry blend, being from about 35 to about 40 percent and the weight ratio of said fatty acid sorbitan monoester to said adduct being from about 60:40 to about 40:60, said blend having an HLB in the range from about 9 to about 10.5 and from about 35 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoether of a glycol, the weight ratio of water to said ether in said mixture being from about 60:40 to about 40:60, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 18
Dependent Claim
13 words
A method according to claim 14, wherein the fatty acid is oleic acid.
Claim 19
Dependent Claim
19 words
A method according to claim 14, wherein the alkaline salt of a dialkylsulfosuccinate is the sodium salt of di(ethylhexyl)sulfosuccinate.
Claim 20
Dependent Claim
42 words
A method according to claim 14, wherein the glycol monoether is a monoalkylether of a glycol selected from the group consisting of monoethylene glycol, and diethylene glycol, monopropylene glycol and dipropylene glycol, the alkyl radical containing from 1 to 4 carbon atoms.
Claim 21
Dependent Claim
14 words
A method according to claim 17, wherein the alkyl radical is the methyl radical.
Claim 22
Dependent Claim
14 words
A method according to claim 17, wherein the alkyl radical is the butyl radical.
Claim 23
Dependent Claim
36 words
A method according to claim 17, wherein the glycol monoether is selected from the group consisting of the monobutyl ether of monoethylene glycol, the monobutyl ether of diethylene glycol and the monomethyl ether of diethylene glycol.
Claim 24
Dependent Claim
21 words
A method according to claim 14, wherein said blend has an HLB in the range from about 9.4 to about 10.5.
Claim 25
Independent Claim
186 words
A method for dispersing an oil slick which comprises spraying said slick with an effective oil slick dispersing amount of a composition consisting essentially of: from about 70 to 75 weight percent of a blend of oleic acid sorbitan monoester, a polyethyleneoxide adduct of oleic acid sorbitan monoester and a 75% aqueous solution of di(ethylhexyl)sulfosuccinate sodium salt, the weight percentage of said salt, based on dry salt and on dry blend, being from 35 to 40 percent and the weight ratio of oleic acid sorbitan monoester to its polyethylene oxide adduct being about 55:45, said blend having an HLB in the range from about 9 to about 10.5 and from about 30 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoalkylether of a glycol selected from the group consisting of monoethylene glycol, diethylene glycol, monopropylene glycol and dipropylene glycol, the alkyl radical containing from 1 to 4 carbon atoms, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 26
Independent Claim
186 words
A method for dispersing an oil slick which comprises spraying said slick with an effective oil slick dispersing amount of a composition consisting essentially of: from about 70 to 75 weight percent of a blend of oleic acid sorbitan monoester, a polyethyleneoxide adduct of oleic acid sorbitan monoester and a 75% aqueous solution of di(ethylhexyl)sulfosuccinate sodium salt, the weight percentage of said salt, based on dry salt and on dry blend, being from 35 to 40 percent and the weight ratio of oleic acid sorbitan monoester to its polyethylene oxide adduct being about 55:45, said blend having an HLB in the range from about 9 to about 10.5 and from about 30 to 25 weight percent of a hydrocarbon-free solvent mixture of water and a monoalkylether of a glycol selected from the group consisting of monoethylene glycol, diethylene glycol, monopropylene glycol and dipropylene glycol, the alkyl radical containing from 1 to 4 carbon atoms, the total amount of water in said composition is 20 to 27.5 weight percent, and said composition has a viscosity in the range from about 475 to 575 centistokes at -10° C.
Claim 27
Dependent Claim
41 words
A method according to claim 22, wherein said glycol monoether is a monoalkylether of a glycol selected from the group consisting of monoethylene glycol, diethylene glycol, monopropylene glycol and dipropylene glycol; said alkyl radical containing from 1 to 4 carbon atoms.
Claim 28
Dependent Claim
14 words
A method according to claim 23, wherein said alkyl radical is a methyl radical.
Claim 29
Dependent Claim
14 words
A method according to claim 23, wherein said alkyl radical is a butyl radical.
Claim 30
Dependent Claim
30 words
A method according to claim 23, wherein said glycol monoether is selected from the group consisting of monoethylene glycol monobutyl ether, diethylene glycol monobutyl ether and diethylene glycol monomethyl ether.
Claim 31
Dependent Claim
20 words
A method according to claim 22, wherein said blend has an HLB in the range from about 9.4 to 10.5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |