US3989640A
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Corrosion inhibitor composition
Assignee: SC Johnson and Son Inc
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Filing: 1973-06-15
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Granted: 1976-11-02
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Expires: 1993-06-15
Abstract
Abstract A combination of corrosion inhibitors which act synergistically to prevent corrosion in compositions containing a chlorinated hydrocarbon and a substantially large amount of water.
Inventors
- 👤 Martin J. Culver
- 👤 Howard R. Stopper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:50
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
40 words
A three component corrosion inhibitor composition consisting essentially of morpholine, ammonium benzoate, and a member of the group consisting of cyclohexane, nitropropane, and cyclopentene, wherein the weight ratio of morpholine to ammonium benzoate to said member is 1:1:2 or 4:1:1.
Claim 2
Dependent Claim
40 words
A three component corrosion inhibitor composition consisting essentially of morpholine, ammonium benzoate, and a member of the group consisting of cyclohexane, nitropropane, and cyclopentene, wherein the weight ratio of morpholine to ammonium benzoate to said member is 1:1:2 or 4:1:1.
Claim 3
Dependent Claim
41 words
A three component corrosion inhibitor composition consisting essentially of ammonium benzoate, butylene oxide, and a member of the group consisting of isopropylamine and triethylamine, wherein the weight ratio of ammonium benzoate to butylene oxide to said member is 1:2:1 or 1:1:4.
Claim 4
Dependent Claim
41 words
A three component corrosion inhibitor composition consisting essentially of ammonium benzoate, butylene oxide, and a member of the group consisting of isopropylamine and triethylamine, wherein the weight ratio of ammonium benzoate to butylene oxide to said member is 1:2:1 or 1:1:4.
Claim 5
Dependent Claim
31 words
A three component corrosion inhibitor composition consisting essentially of triethylamine, sodium benzoate, and butylene oxide, wherein the weight ratio of triethylamine to sodium benzoate to butylene oxide is 1:1:2 or 4:1:1.
Claim 6
Dependent Claim
31 words
A three component corrosion inhibitor composition consisting essentially of triethylamine, sodium benzoate, and butylene oxide, wherein the weight ratio of triethylamine to sodium benzoate to butylene oxide is 1:1:2 or 4:1:1.
Claim 7
Dependent Claim
73 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of morpholine, ammonium benzoate, and a member selected from the group consisting of cyclohexene, nitropropane, and cyclopentene, wherein the weight ratio of morpholine to ammonium benzoate to said member is 1:1:2 or 4:1:1.
Claim 8
Dependent Claim
73 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of morpholine, ammonium benzoate, and a member selected from the group consisting of cyclohexene, nitropropane, and cyclopentene, wherein the weight ratio of morpholine to ammonium benzoate to said member is 1:1:2 or 4:1:1.
Claim 9
Dependent Claim
13 words
A composition according to claim 4 wherein said chlorinated hydrocarbon solvent is 1,1,1-trichloroethane.
Claim 10
Dependent Claim
53 words
A composition according to claim 4 wherein morpholine is present in a concentration of 0.5 to 1.33 percent by weight, ammonium benzoate is present in a concentration of 0.22 to 0.5 percent by weight, and said member is present in a concentration of 0.33 to 1.0 percent by weight, of said solvent-water composition.
Claim 11
Dependent Claim
47 words
A composition according to claim 5 wherein morpholine is present in a concentration of 0.5 percent by weight, ammonium benzoate is present in a concentration of 0.5 percent by weight, and said member is present in a concentration of 1.0 percent by weight, of said 1,1,1-trichloroethane-water composition.
Claim 12
Dependent Claim
74 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of ammonium benzoate, butylene oxide, and a member selected from the group consisting of isopropylamine and triethylamine, wherein the weight ratio of ammonium benzoate to butylene oxide to said member is 1:2:1 or 1:1:4.
Claim 13
Dependent Claim
74 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of ammonium benzoate, butylene oxide, and a member selected from the group consisting of isopropylamine and triethylamine, wherein the weight ratio of ammonium benzoate to butylene oxide to said member is 1:2:1 or 1:1:4.
Claim 14
Dependent Claim
13 words
A composition according to claim 10 wherein said chlorinated hydrocarbon solvent is 1,1,1-trichloroethane.
Claim 15
Dependent Claim
54 words
A composition according to claim 8 wherein ammonium benzoate is present in a concentration of 0.22 to 0.5 percent by weight, butylene oxide is present in a concentration of 0.33 to 1.0 percent by weight, and said member is present in a concentration of 0.5 to 1.33 percent by weight, of said solvent-water composition.
Claim 16
Dependent Claim
48 words
A composition according to claim 7 wherein ammonium benzoate is present in a concentration of 0.5 percent by weight, butylene oxide is present in a concentration of 1.0 percent by weight, and said member is present in a concentration of 0.5 percent by weight, of said 1,1,1-trichloroethanewater composition.
Claim 17
Dependent Claim
63 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of triethylamine, sodium benzoate, and butylene oxide, wherein the weight ratio of triethylamine to sodium benzoate to butylene oxide is 1:1:2 or 4:1:1.
Claim 18
Dependent Claim
63 words
An aqueous composition consisting essentially of a chlorinated hydrocarbon solvent, water present in greater than trace amounts, and at least 2 weight percent based upon the weight of said solvent-water composition of a three component corrosion inhibitor composition consisting essentially of triethylamine, sodium benzoate, and butylene oxide, wherein the weight ratio of triethylamine to sodium benzoate to butylene oxide is 1:1:2 or 4:1:1.
Claim 19
Dependent Claim
13 words
A composition according to claim 12 wherein said chlorinated hydrocarbon solvent is 1,1,1-trichloroethane.
Claim 20
Dependent Claim
53 words
A composition according to claim 12 wherein triethylamine is present in a concentration of 0.5 to 1.33 percent by weight, sodium benzoate is present in a concentration of 0.22 to 0.5 percent by weight, and butylene oxide is present in a concentration of 0.33 to 1.0 percent by weight, of said solvent-water composition.
Claim 21
Dependent Claim
47 words
A composition according to claim 13 wherein triethylamine is present in a concentration of 0.5 percent by weight, sodium benzoate is present in a concentration of 0.5 percent by weight, and butylene oxide is present in a concentration of 1.0 percent by weight, of said 1,1,1-trichloroethane-water composition.
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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |