US4597895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol corrosion inhibitors
Assignee: EIDP Inc
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Filing: 1984-12-06
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Granted: 1986-07-01
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Expires: 2004-12-06
Abstract
Abstract Corrosion inhibitor compositions comprising a mixture of a nitroalkane containing 1-3 carbon atoms and a cocoamide of diethanolamine. Such compositions are useful in inhibiting corrosion on the interior surfaces of tin-plated aerosol cans containing water-based aerosol formulations.
Inventors
- 👤 Philip L. Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:12
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/30; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; Y; Y10; Y10S; Y10S424/00; Y10S424/01; Y10S424/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
In an aerosol composition containing an aqueous aerosol-dispersible media and a propellant, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt. % to 15 wt. % of cocoamide of diethanolamine wherein the mole ratio of the diethanolamine to coconut fatty acid is 1:1 to 2:1, said corrosion inhibiting composition being present in an amount sufficient to prevent more than light corrosion of a tin-plated steel aerosol can containing said aerosol composition.
Claim 2
Dependent Claim
90 words
In an aerosol composition containing an aqueous aerosol-dispersible media and a propellant, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt. % to 15 wt. % of cocoamide of diethanolamine wherein the mole ratio of the diethanolamine to coconut fatty acid is 1:1 to 2:1, said corrosion inhibiting composition being present in an amount sufficient to prevent more than light corrosion of a tin-plated steel aerosol can containing said aerosol composition.
Claim 3
Dependent Claim
26 words
The composition of claim 1 in which the nitroalkane is nitromethane and the mole ratio of diethanolamine to coconut fatty acid in the cocoamide is 1:1.
Claim 4
Dependent Claim
26 words
The composition of claim 1 in which the nitroalkane is nitromethane and the mole ratio of diethanolamine to coconut fatty acid in the cocoamide is 2:1.
Claim 5
Dependent Claim
25 words
The composition of claim 1 comprising 40 wt. % to 60 wt. % nitroalkane and 60 wt. % to 40 wt. % cocoamide of diethanolamine.
Claim 6
Dependent Claim
11 words
The composition of claim 4 in which the nitroalkane is nitromethane.
Claim 7
Dependent Claim
89 words
In an aerosol propellant for use in a water-based aerosol composition, the improvement which comprises the presence of a corrosion inhibitor composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt. % to 15 wt. % of cocoamide of diethanolamine wherein the mole ratio of the diethanolamine to coconut fatty acid is 1:1 to 2:1, said corrosion inhibiting composition being present in an amount sufficient to prevent more than light corrosion of a tin-plated steel aerosol can containing said aerosol composition.
Claim 8
Dependent Claim
89 words
In an aerosol propellant for use in a water-based aerosol composition, the improvement which comprises the presence of a corrosion inhibitor composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt. % to 15 wt. % of cocoamide of diethanolamine wherein the mole ratio of the diethanolamine to coconut fatty acid is 1:1 to 2:1, said corrosion inhibiting composition being present in an amount sufficient to prevent more than light corrosion of a tin-plated steel aerosol can containing said aerosol composition.
References Cited (Backward Citations)
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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) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |