US4600530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol corrosion inhibitors
Assignee: EIDP Inc
•
Filing: 1985-03-27
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Granted: 1986-07-15
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Expires: 2005-03-27
Abstract
Abstract Corrosion inhibitor compositions comprising a mixture of a nitroalkane containing 1-3 carbon atoms and a tertiary C 12-14 alkylammonium carboxylate selected from the group consisting of a C 12-14 alkylammonium benzoate and a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate. 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
2026-10-31 02:50
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: 14
Claim 1
Independent Claim
94 words
In an aerosol composition containing an aqueous aerosol-dispersible medium and a propellant, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 to 85 wt. % of a nitroalkane containing 1-3 carbon atoms and 85 to 15 wt. % of a tertiary C 12-14 alkylammonium carboxylate selected from the group consisting of a tertiary C 12-14 alkylammonium benzoate and a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate, 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
94 words
In an aerosol composition containing an aqueous aerosol-dispersible medium and a propellant, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 to 85 wt. % of a nitroalkane containing 1-3 carbon atoms and 85 to 15 wt. % of a tertiary C 12-14 alkylammonium carboxylate selected from the group consisting of a tertiary C 12-14 alkylammonium benzoate and a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate, 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
25 words
The composition of claim 1 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium benzoate.
Claim 4
Dependent Claim
25 words
The composition of claim 1 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate.
Claim 5
Dependent Claim
31 words
The composition of claim 1 comprising 15 to 50 wt. % of a nitroalkane containing 1-3 carbon atoms and 85 to 50 wt. % of a tertiary C 12-14 alkylammonium carboxylate.
Claim 6
Dependent Claim
25 words
The composition of claim 4 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium benzoate.
Claim 7
Dependent Claim
25 words
The composition of claim 4 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate.
Claim 8
Dependent Claim
74 words
In an aerosol propellant for use in a water-based aerosol composition, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 to 85 wt. % of a nitroalkane containing 1-3 carbon atoms and 85 to 15 wt. % of a tertiary C 12-14 alkylammonium carboxylate, 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 9
Dependent Claim
74 words
In an aerosol propellant for use in a water-based aerosol composition, the improvement which comprises the presence of a corrosion inhibiting composition comprising 15 to 85 wt. % of a nitroalkane containing 1-3 carbon atoms and 85 to 15 wt. % of a tertiary C 12-14 alkylammonium carboxylate, 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 10
Dependent Claim
25 words
The composition of claim 7 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium benzoate.
Claim 11
Dependent Claim
25 words
The composition of claim 7 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate.
Claim 12
Dependent Claim
31 words
The composition of claim 7 comprising 15 to 50 wt % of a nitroalkane containing 1-3 carbon atoms and 85 to 50 wt % of a tertiary C 12-14 alkylammonium carboxylate.
Claim 13
Dependent Claim
25 words
The composition of claim 10 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium benzoate.
Claim 14
Dependent Claim
25 words
The composition of claim 10 in which the nitroalkane is nitromethane and the tertiary C 12-14 alkylammonium carboxylate is a tertiary C 12-14 alkylammonium-N-oleoyl sarcosinate.
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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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |