Patent US5698139A successfully refreshed from Google Patents.
US5698139A
Expired / Lapsed
US
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Method of making poly (linseed oil/isobutyl methacrylate) as a coagulant for oil
Assignee: Mycelx Technologies Corp
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Filing: 1995-07-28
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Granted: 1997-12-16
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Expires: 2015-07-28
Abstract
Abstract The invention discloses methods of making oil coagulant compositions, the oil coagulants made thereby and processes for using the coagulants to coagulate oil that has been spilled on water. The coagulant comprises a glyceride, such as, for example, the drying oil linseed oil, a polymer, such as, for example, poly(isobutyl methacrylate), and a solvent, such as, for example, 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate. The coagulant of the present invention coagulates oil independent of both agitation and temperature, and may be used in both salt and fresh water. After the coagulant has coagulated the spilled oil, the coagulated oil may be readily mechanically removed from the water such that at least 99.9% of the oil is removed from the water and only a faint trace of oil remains in the water.
Inventors
- 👤 Hal Alper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:51
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A process for making an oil coagulant composition which comprises: (a) mixing a glyceride component derived from the group consisting of drying oils, semi-drying oils and non-drying oils and an acrylate polymer or a methacrylate copolymer selected from the group consisting of methyl methacrylate polymers, methyl/n-butyl methacrylate, ethyl methacrylate polymers, n-butyl methacrylate polymers and n-butyl/isobutyl methacrylate polymers and heating said mixture to the temperature range of from 400° to 500° F. until a clear pill test indicates that the reaction has reached its end point; and (b) adding the solvent to said mixture to form a solution.
Claim 2
Dependent Claim
97 words
A process for making an oil coagulant composition which comprises: (a) mixing a glyceride component derived from the group consisting of drying oils, semi-drying oils and non-drying oils and an acrylate polymer or a methacrylate copolymer selected from the group consisting of methyl methacrylate polymers, methyl/n-butyl methacrylate, ethyl methacrylate polymers, n-butyl methacrylate polymers and n-butyl/isobutyl methacrylate polymers and heating said mixture to the temperature range of from 400° to 500° F. until a clear pill test indicates that the reaction has reached its end point; and (b) adding the solvent to said mixture to form a solution.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein said glyceride component is derived from the drying oil which is linseed oil.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein said linseed oil comprises approximately 35-40% of said coagulant composition.
Claim 5
Dependent Claim
11 words
The process of claim 1 wherein said polymer is poly(isobutyl methacrylate).
Claim 6
Dependent Claim
14 words
The process of claim 1 where said polymer comprises approximately 10-15% of said coagulant.
Claim 7
Dependent Claim
28 words
The process of claim 1 wherein said solvent is selected from the group consisting of aliphatic hydrocarbons, aromatic hydrocarbons, alcohols, ketones, ethers, aldehydes, phenols, carboxylic acids and carboxylates.
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein said solvent is 2, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate.
Claim 9
Dependent Claim
15 words
The process of claim 1 wherein said solvent comprises approximately 45-55% of said coagulant composition.
Claim 10
Dependent Claim
20 words
The process of claim 1 wherein said mixture is heated to a temperature ranging from 425° F. to 450° F.
Claim 11
Dependent Claim
11 words
The process of claim 1, wherein said solvent is isopropyl alcohol.
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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) | 2000-12-15 | 2001-06-16 | 2001-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-15 | 2005-06-16 | 2005-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-15 | 2009-06-16 | 2009-12-16 | $7700.00 | Window Closed / Lapsed |