US4098694A
Expired / Lapsed
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Methods and compositions for dispersing oil films
Assignee: United States Steel Corp
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Filing: 1972-11-13
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Granted: 1978-07-04
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Expires: 1992-11-13
Abstract
Abstract Thin oil films on water can be dispersed by the action of a non-ionic dispersant and organic, water-insoluble oxygenated compounds. The oxygenated compounds may be such things as oxo alcohol bottoms or alcohol and ester mixtures.
Inventors
- 👤 Charles Perlaky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:59
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07; Y10S516/905; Y10S516/914; Y10S516/915; Y10S516/917; Y10S516/918
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
70 words
An oil film dispersing composition comprising a solution of (a) about 3 to about 50% by weight of a non-ionic dispersant selected from the group consisting of fatty acid condensates of an alkanol amine, polyalkylene glycol ethers, poly-carboxylic acid esters and mixtures of the same, and (b) about 50 to about 97% by weight of a water-insoluble oxygenated organic compound, said oxygenated organic compound being selected from the class of
Claim 2
Dependent Claim
70 words
An oil film dispersing composition comprising a solution of (a) about 3 to about 50% by weight of a non-ionic dispersant selected from the group consisting of fatty acid condensates of an alkanol amine, polyalkylene glycol ethers, poly-carboxylic acid esters and mixtures of the same, and (b) about 50 to about 97% by weight of a water-insoluble oxygenated organic compound, said oxygenated organic compound being selected from the class of
Claim 3
Dependent Claim
58 words
mixtures having 65 to 95% by weight of mixed alcohols having 4 to 13 carbon atoms in their molecule and 5 to 35% by weight of alkyl or aromatic acid esters of said alcohols, and 2. oxo bottoms obtained from the production of oxo alcohols having 6 to 13 carbon atoms, and 3. mixtures of 1 and 2.
Claim 4
Dependent Claim
58 words
mixtures having 65 to 95% by weight of mixed alcohols having 4 to 13 carbon atoms in their molecule and 5 to 35% by weight of alkyl or aromatic acid esters of said alcohols, and 2. oxo bottoms obtained from the production of oxo alcohols having 6 to 13 carbon atoms, and 3. mixtures of 1 and 2.
Claim 5
Dependent Claim
16 words
The composition of claim 1 wherein said alcohols include butyl, octyl, decyl, iso-octyl and iso-decyl alcohols.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein said esters include adipates, sebacates and phthalates.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein said oxo bottoms are obtained from the production of iso-decyl and iso-octyl alcohols.
Claim 8
Dependent Claim
28 words
The composition of claim 1 wherein said non-ionic dispersant is selected from the group consisting of alkanolamide condensates with fatty acids, ethylene glycol ethers, and polycarboxylic acid esters.
Claim 9
Dependent Claim
20 words
The composition of claim 5 wherein said non-ionic dispersant includes an alkanolamide having about 16 carbon atoms in its molecule.
Claim 10
Dependent Claim
25 words
The composition of claim 1 wherein said oxygenated organic compound of (b) 1 is obtained from the overhead vapors produced during esterification of said alcohols.
Claim 11
Dependent Claim
17 words
The composition of claim 7 wherein said esterification is the esterification of adipic, sebacic, or phthalic acids.
Claim 12
Dependent Claim
21 words
The composition of claim 1 wherein said water-insoluble oxygenated organic compound comprises at least about 75% by weight of said solution.
Claim 13
Independent Claim
134 words
A method for dispersing oil films on bodies of water wherein said oil has a bulk concentration in said water of less than about 100 ppm of oil comprising the steps of: (i) forming a solution of a. about 3 to about 50% by weight of a non-ionic dispersant selected from the class consisting of fatty acid condensates of an alkanol amine, poly-alkylene glycol ethers, poly-carboxylic acid esters, or mixtures of the same, and b. about 50 to about 97% by weight of a water-insoluble oxygenated organic compound, said oxygenated organic compound being selected from the class of 1. mixtures having 65 to 95% by weight of mixed alcohols having 4 to 13 carbon atoms in their molecule and 5 to 35% by weight of alkyl or aromatic acid esters of said alcohols, and
Claim 14
Independent Claim
134 words
A method for dispersing oil films on bodies of water wherein said oil has a bulk concentration in said water of less than about 100 ppm of oil comprising the steps of: (i) forming a solution of a. about 3 to about 50% by weight of a non-ionic dispersant selected from the class consisting of fatty acid condensates of an alkanol amine, poly-alkylene glycol ethers, poly-carboxylic acid esters, or mixtures of the same, and b. about 50 to about 97% by weight of a water-insoluble oxygenated organic compound, said oxygenated organic compound being selected from the class of 1. mixtures having 65 to 95% by weight of mixed alcohols having 4 to 13 carbon atoms in their molecule and 5 to 35% by weight of alkyl or aromatic acid esters of said alcohols, and
Claim 15
Dependent Claim
46 words
oxo bottoms obtained from the production of oxo alcohols having 6 to 13 carbon atoms, and 3. mixtures of 1 and 2, and (ii) adding the solution of step (i) to the mixture of oil and water in an amount sufficient to disperse said oil film.
Claim 16
Dependent Claim
46 words
oxo bottoms obtained from the production of oxo alcohols having 6 to 13 carbon atoms, and 3. mixtures of 1 and 2, and (ii) adding the solution of step (i) to the mixture of oil and water in an amount sufficient to disperse said oil film.
Claim 17
Dependent Claim
42 words
The method of claim 10 wherein said solution is added to a first body of water and said first body of water flows into a second body of water containing less than 100 ppm of oil in the form of a film.
Claim 18
Dependent Claim
19 words
The method of claim 10 wherein said solution is sprayed onto said body of water having said oil film.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |