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US4512914A
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Compositions and method for treating oil slicks
Assignee: Labofina SA
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Filing: 1983-02-03
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Granted: 1985-04-23
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Expires: 2003-02-03
Abstract
Abstract Compositions for treating oil slicks on seawater said dispersing compositions containing at least one surface-active agent, at least one solvent, and a nitrogen-containing compound which is a nutrient for the micro-organisms which are active in oil metabolism. The nitrogen-containing compound is a monoalkylguanidinium salt ##STR1## wherein R is an aliphatic hydrocarbon radical, saturated or unsaturated, containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.
Inventors
- 👤 Andre Lepain
- 👤 Robert D. E. M. Bronchart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:49
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; C02F3/00; C02F3/34; C02F3/344; C09; C09K; C09K3/00; C09K3/32; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
Dispersing compositions for treating oil slicks on seawater, comprising at least one surface-active agent, at least one solvent, and a monoalkylguanidinium salt having the general formula ##STR6## wherein R is an aliphatic hydrocarbon radical containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.
Claim 2
Dependent Claim
52 words
Dispersing compositions for treating oil slicks on seawater, comprising at least one surface-active agent, at least one solvent, and a monoalkylguanidinium salt having the general formula ##STR6## wherein R is an aliphatic hydrocarbon radical containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.
Claim 3
Dependent Claim
21 words
Compositions according to claim 1 wherein R is an aliphathic hydrocarbon radical containing from about 12 to about 18 carbon atoms.
Claim 4
Dependent Claim
56 words
Compositions according to claim 1, wherein X is an acid anion selected from the group comprising Cl, --CH 3 SO 4 , --NO 3 , --HSO 4 , ##STR7## and R 1 --C 6 H 4 SO 3 ; and wherein R 1 is H or an alkyl radical containing from 1 to 12 carbon atoms.
Claim 5
Dependent Claim
15 words
Compositions according to claim 1 wherein X is Cl, --NO 3 or --HSO 4 .
Claim 6
Dependent Claim
19 words
Compositions according to claim 1, containing up to 35% of monoalkylguanidinium salt, based on the total weight of composition.
Claim 7
Dependent Claim
22 words
Compositions according to claim 5, containing from about 2 to about 20% of monoalkylguanidinium salt, based on the total weight of composition.
Claim 8
Dependent Claim
22 words
Compositions according to claim 6, containing from about 5 to about 15% of monoalkylguanidinium salt, based on the total weight of composition.
Claim 9
Dependent Claim
16 words
Compositions according to claim 5, further comprising a phosphorous compound acting as a nutrient for micro-organisms.
Claim 10
Dependent Claim
33 words
Compositions according to claim 8, wherein the total weight of surface-active agent, monoalkylguanidinium salt, and phosphorous compound is between about 30 and about 85 percent, based on the total weight of the composition.
Claim 11
Dependent Claim
30 words
Compositions according to claim 9, further comprising an alkylbenzenesulfonic acid magnesium salt or calcium salt in an amount not higher than about 3%, based on the total weight of composition.
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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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |