US4339338A
Expired / Lapsed
US
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Method of reducing the strength of adhesion of solid particulate materials to metal surfaces
Assignee: Union Carbide Corp
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Filing: 1980-09-22
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Granted: 1982-07-13
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Expires: 2000-09-22
Abstract
Abstract This invention is directed to a method for reducing the strength of adhesion of solid particulate materials to metal surfaces as occurs under water freezing conditions by coating the metal surface with a mixture comprising a hydrocarbon liquid which has a solidification or pour point not greater than 0 DEG F. and a saturated or unsaturated fatty acid having from about 10 to about 18 carbon atoms.
Inventors
- 👤 Robert J. Blake
- 👤 Joseph E. Sokolik, Jr.
- 👤 Samuel Sterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:54
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; B05D7/00; B05D7/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
69 words
A method for reducing the strength of adhesion of solid particulate materials to metal surfaces as occurs under water freezing conditions by coating the metal surfaces to be in contact with the particulate material with a mixture comprising a hydrocarbon liquid, which has a solidification or pour point not greater than 0° F., and a saturated or unsaturated fatty acid having from about 10 to about 18 carbon atoms.
Claim 2
Independent Claim
69 words
A method for reducing the strength of adhesion of solid particulate materials to metal surfaces as occurs under water freezing conditions by coating the metal surfaces to be in contact with the particulate material with a mixture comprising a hydrocarbon liquid, which has a solidification or pour point not greater than 0° F., and a saturated or unsaturated fatty acid having from about 10 to about 18 carbon atoms.
Claim 3
Dependent Claim
14 words
A method as defined in claim 1, wherein the solid particulate material comprises coal.
Claim 4
Dependent Claim
24 words
A method as defined in claim 1, wherein the hydrocarbon liquid is selected from No. 2 fuel oil, diesel oil, kerosene or turbo fuel.
Claim 5
Dependent Claim
14 words
A method as defined in claim 1, wherein the fatty acid is oleic acid.
Claim 6
Dependent Claim
14 words
A method as defined in claim 1, wherein the fatty acid is linoleic acid.
Claim 7
Dependent Claim
23 words
A method as defined in claim 1, wherein the mixture contains from about 25 to about 95 weight percent of the hydrocarbon liquid.
Claim 8
Dependent Claim
23 words
A method as defined in claim 6, wherein the mixture contains from about 75 to about 90 weight percent of the hydrocarbon liquid.
Claim 9
Dependent Claim
23 words
A method as defined in claim 1, wherein the mixture contains from about 5 to about 75 weight percent of the fatty acid.
Claim 10
Dependent Claim
23 words
A method as defined in claim 1, wherein the mixture contains from about 10 to about 25 weight percent of the fatty acid.
Claim 11
Independent Claim
73 words
A method for reducing the strength of adhesion of solid particulate materials to metal surfaces as occurs under water freezing conditions by coating the metal surfaces in contact with the particulate material with a mixture comprising from about 75 to about 90 weight percent of a hydrocarbon liquid selected from No. 2 fuel oil, diesel oil, kerosene, or turbo fuel, and from about 10 to about 25 weight percent of a fatty acid.
Claim 12
Independent Claim
73 words
A method for reducing the strength of adhesion of solid particulate materials to metal surfaces as occurs under water freezing conditions by coating the metal surfaces in contact with the particulate material with a mixture comprising from about 75 to about 90 weight percent of a hydrocarbon liquid selected from No. 2 fuel oil, diesel oil, kerosene, or turbo fuel, and from about 10 to about 25 weight percent of a fatty acid.
Claim 13
Dependent Claim
13 words
A method as defined in claim 10, wherein the hydrocarbon liquid is kerosene.
Claim 14
Dependent Claim
14 words
A method as defined in claim 10, wherein the fatty acid is oleic acid.
Claim 15
Dependent Claim
20 words
A method as defined in claim 10, wherein the hydrocarbon liquid is kerosene and the fatty acid is oleic acid.
Claim 16
Independent Claim
20 words
A method as defined in claims 10 or 11, or 12 or 13 wherein the solid particulate material comprises coal.
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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |