US3925087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition or prevention with inorganic-organic complexes
Assignee: Drew Chemical Corp
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Filing: 1974-04-04
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Granted: 1975-12-09
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Expires: 1994-04-04
Abstract
Abstract In the disclosed compositions, about 2 to about 10% by weight of a drying oil in combination with a conventional rust-inhibiting thixotropic inorganic-organic complex in the appropriate concentration provides a corrosion inhibiting film with a degree of resistance to saltspray not possessed by either the inorganicorganic complex or the drying oil alone. A preferred composition comprises 12.5 to 25% by weight of a calcium sulfonate/calcium carbonate concentrate and 3 - 9% by weight of tung oil, essentially the balance of the composition being a high-boiling hydrocarbon oil (e.g. paraffinic or naphthenic oil). The inorganic-organic complex concentrate typically comprises a stable dispersion of the complex in 65 - 100 parts per hundred of a hydrocarbon oil which can be the same as or different from the aforementioned balance of the composition. These compositions are particularly well-suited to flotation coating of ballast tanks.
Inventors
- 👤 Thomas G Lechner
- 👤 Michael E Besse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
C; C10; C10M; C10M5/00; C09; C09D; C09D5/00; C09D5/08; C23; C23F; C23F15/00; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/20; C10M2207/40; C10M2207/404; C10M2211/00; C10M2211/02; C10M2219/00; C10M2219/04; C10M2219/046; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2030/00; C10N2030/12; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
4 words
A COROSION-INHIBITING COMPOSITION COMPRISING:
Claim 2
Dependent Claim
4 words
A COROSION-INHIBITING COMPOSITION COMPRISING:
Claim 3
Dependent Claim
159 words
ABOUT 10 TO ABOUT 30% BY WEIGHT OF A RUST-INHIBITIVE, GREASE-LIKE CONCENTRATE COMPRISING A THIXOTROPIC INORGANIC/ORGANIC COMPLEX STABLY DISPERSED IN AN ESSENTIALLY INERT LIQUID OILY PHASE IN AN AMOUNT NOT TO EXCEED 4 PARTS, PER PART OF SAID COMPLEX, OF SAID ESSENTIALLY INERT LIQUID OILY PHASE, SAID INORGANIC-ORGANIC COMPLEX COMPRISING AN OVER-BASED ALKALINE EARTH ORGANIC SALT, WHEREBY THE CRYSTALLINE STRUCTURE OF THE INORGANIC PORTION OF SAID COMPLEX IS PLATELET AND FILM-FORMING IN CHARACTER; B. ABOUT 2 TO ABOUT 10% BY WEIGHT OF A DRYING OIL; SAID DRYING OIL BEING MISCIBLE IN A DIILUENT OIL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON DILUENTS, CYCLOALIPHATIC HYDROCARBON DILUENTS, AROMATIC HYDROCARBON DILUENTS AND MIXTURES THEREOF BOILING AT TEMPERATURES ABOVE 150*C; AND C. FROM AT LEAST 60% BY WEIGHT TO ESSENTIALLY THE BALANCE OF SAID COMPOSITION BEING A DILUENT OIL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON DILUENTS, CYCLOALIPHATIC HYDROCARBON DILUENTS, AROMATIC HYDROCARBON DILUENTS AND MIXTURES THEREOF BOILING AT TEMPERATURES ABOVE 150*C.
Claim 4
Dependent Claim
159 words
ABOUT 10 TO ABOUT 30% BY WEIGHT OF A RUST-INHIBITIVE, GREASE-LIKE CONCENTRATE COMPRISING A THIXOTROPIC INORGANIC/ORGANIC COMPLEX STABLY DISPERSED IN AN ESSENTIALLY INERT LIQUID OILY PHASE IN AN AMOUNT NOT TO EXCEED 4 PARTS, PER PART OF SAID COMPLEX, OF SAID ESSENTIALLY INERT LIQUID OILY PHASE, SAID INORGANIC-ORGANIC COMPLEX COMPRISING AN OVER-BASED ALKALINE EARTH ORGANIC SALT, WHEREBY THE CRYSTALLINE STRUCTURE OF THE INORGANIC PORTION OF SAID COMPLEX IS PLATELET AND FILM-FORMING IN CHARACTER; B. ABOUT 2 TO ABOUT 10% BY WEIGHT OF A DRYING OIL; SAID DRYING OIL BEING MISCIBLE IN A DIILUENT OIL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON DILUENTS, CYCLOALIPHATIC HYDROCARBON DILUENTS, AROMATIC HYDROCARBON DILUENTS AND MIXTURES THEREOF BOILING AT TEMPERATURES ABOVE 150*C; AND C. FROM AT LEAST 60% BY WEIGHT TO ESSENTIALLY THE BALANCE OF SAID COMPOSITION BEING A DILUENT OIL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON DILUENTS, CYCLOALIPHATIC HYDROCARBON DILUENTS, AROMATIC HYDROCARBON DILUENTS AND MIXTURES THEREOF BOILING AT TEMPERATURES ABOVE 150*C.
Claim 5
Dependent Claim
29 words
A composition according to claim 1 wherein said drying oil comprises tung oil, and the amount of said tung oil is 3 - 9% by weight of said composition.
Claim 6
Dependent Claim
15 words
A composition according to claim 1 wherein said hydrocarbon oil diluent is a naphthenic oil.
Claim 7
Dependent Claim
39 words
A composition according to claim 1 consisting essentially of: a. 12.5 to 25% by weight of said rust-inhibitive, grease-like concentrate; and b. 3 - 9% by weight of tung oil; essentially the balance of said composition being naphthenic oil.
Claim 8
Dependent Claim
56 words
A composition according to claim wherein said rust-inhibitive grease-like concentrate comprises 50 - 70% by weight, based on the weight of said concentrate, of a film-forming, micelle forming, alkaline earth inorganic-organic complex of the formula (RSO3)2Ca.aCaCO3, wherein R represents an alkyl-aryl group and a is a number greater than zero and ranging up to about 8.
Claim 9
Dependent Claim
24 words
A composition according to claim 1 wherein the amount of said grease-like concentrate is about 15 to about 20% by weight of said composition.
Claim 10
Dependent Claim
33 words
A composition according to claim 1 wherein said drying oil is a glyceryl ester of a mixture of aliphatic carboxylic acids comprising unsaturated aliphatic carboxylic acids having from 6 to 24 carbon atoms.
Claim 11
Dependent Claim
31 words
A composition according to claim 2 wherein the ratio of CaCO3 to (C22H45-PhSO3)2 Ca in the formula of said organic-inorganic film-forming complex is greater than zero and less than about 8.
Claim 12
Dependent Claim
192 words
A corrosion-inhibiting coating composition for a metal substrate consisting essentially of the following active ingredients: (a) an inorganic-organic complex consisting essentially of a compound of the formula (RSO3)2Ca.aCaCO3, wherein R is an alkyl-aryl group and a is a number greater than zero ranging up to about 8, and (b) a drying oil, the ratio of (a) to (b) ranging from about 1:1 to 3:1, wherein said active ingredients have been diluted with an oily liquid and said oily liquid and said drying oil are sufficiently miscible to form a single phase, said oily liquid being selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons and mixtures thereof derived from coal tar or petroleum and having a boiling range above 150*C., to a level of viscosity permitting the deposition, without shear, of at least about 1.0 gr. per square meter of substrate and a minimum of dry thickness coating of about 5 microns; wherein said corrosion-inhibiting coating composition comprises: about 5 to about 15% by weight of said inorganic/organic complex; about 2 to about 10% by weight of said drying oil; and essentially the balance to 100% of said oily liquid.
Claim 13
Dependent Claim
192 words
A corrosion-inhibiting coating composition for a metal substrate consisting essentially of the following active ingredients: (a) an inorganic-organic complex consisting essentially of a compound of the formula (RSO3)2Ca.aCaCO3, wherein R is an alkyl-aryl group and a is a number greater than zero ranging up to about 8, and (b) a drying oil, the ratio of (a) to (b) ranging from about 1:1 to 3:1, wherein said active ingredients have been diluted with an oily liquid and said oily liquid and said drying oil are sufficiently miscible to form a single phase, said oily liquid being selected from the group consisting of aliphatic, cycloaliphatic, and aromatic hydrocarbons and mixtures thereof derived from coal tar or petroleum and having a boiling range above 150*C., to a level of viscosity permitting the deposition, without shear, of at least about 1.0 gr. per square meter of substrate and a minimum of dry thickness coating of about 5 microns; wherein said corrosion-inhibiting coating composition comprises: about 5 to about 15% by weight of said inorganic/organic complex; about 2 to about 10% by weight of said drying oil; and essentially the balance to 100% of said oily liquid.
Claim 14
Dependent Claim
109 words
A rust-inhibiting liquid coating composition consisting essentially of: a. 15 - 20% by weight of rust-inhibiting concentrate having a viscosity in excess of 50,000 c.p.s. at 25*C., said concentrate comprising a thixotropic, overneutralized (C22H45-PhSO3)2Ca/CaCO3 organic-inorganic film-forming complex dispersed as micelles throughout an inert hydrocarbon oil phase having a boiling point above 260*C., wherein Ph represents a phenylene group and more than 25% by weight of said concentrate comprises said organic-inorganic filmforming complex; b. 6 - 8% by weight of tung oil; and c. essentially the balance of said composition, from about 72% to about 79% by weight, of naphthenic oil as a diluent for said components (a) and (b).
Claim 15
Dependent Claim
109 words
A rust-inhibiting liquid coating composition consisting essentially of: a. 15 - 20% by weight of rust-inhibiting concentrate having a viscosity in excess of 50,000 c.p.s. at 25*C., said concentrate comprising a thixotropic, overneutralized (C22H45-PhSO3)2Ca/CaCO3 organic-inorganic film-forming complex dispersed as micelles throughout an inert hydrocarbon oil phase having a boiling point above 260*C., wherein Ph represents a phenylene group and more than 25% by weight of said concentrate comprises said organic-inorganic filmforming complex; b. 6 - 8% by weight of tung oil; and c. essentially the balance of said composition, from about 72% to about 79% by weight, of naphthenic oil as a diluent for said components (a) and (b).
Claim 16
Dependent Claim
34 words
A composition according to claim 10 consisting of; a. about 15% by weight of said organic-inorganic filmforming complex; b. about 6% by weight of tung oil; c. about 79% by weight of naphthenic oil.
Claim 17
Dependent Claim
75 words
In a method for preparing a coating composition for protecting a metal surface through the formation of a coating comprising a generally water-impervious layer of crystalline metal salt platelets on said surface, said composition comprising an organic metal sulfonate/basic metal salt organic-inorganic complex dispersed in essentially hydrocarbon oil, the improvement which comprises: adding about 2 to about 10 parts by weight of a drying oil for each 100 parts by weight of said coating composition.
Claim 18
Dependent Claim
75 words
In a method for preparing a coating composition for protecting a metal surface through the formation of a coating comprising a generally water-impervious layer of crystalline metal salt platelets on said surface, said composition comprising an organic metal sulfonate/basic metal salt organic-inorganic complex dispersed in essentially hydrocarbon oil, the improvement which comprises: adding about 2 to about 10 parts by weight of a drying oil for each 100 parts by weight of said coating composition.
Claim 19
Dependent Claim
37 words
A method according to claim 12 wherein said drying oil is tung oil, and the amount of said tung oil used is greater than 3 but less than 9 parts per 100 parts of said coating composition.
Claim 20
Dependent Claim
21 words
A method of protecting metal surfaces against corrosion comprising the step of coating said surfaces with the composition of claim 1.
Claim 21
Dependent Claim
30 words
The method of claim 14, wherein said coating step is carried out by depositing said composition on said surfaces, with essentially zero shear force applies to the area of deposition.
Claim 22
Dependent Claim
40 words
The method of claim 15, wherein the combined amount of said grease-like concentrate and said drying oil deposited on said surfaces is at least about 1.0 gram per square meter for a minimum dry coating thickness of about 5 microns.
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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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |