US4584021A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol corrosion inhibitors
Assignee: EIDP Inc
•
Filing: 1984-12-07
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Granted: 1986-04-22
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Expires: 2004-12-07
Abstract
Abstract Corrosion inhibitor compositions comprising a mixture of nitroalkane containing 1-3 carbon atoms and an amine neutralized phosphate ester selected from the group consisting of 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate, tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate, diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate and 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate. 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
2026-11-06 08:09
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
82 words
A corrosion inhibiting composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt % to 15 wt % by weight of an amine neutralized phosphate ester selected from the group consisting of 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate, tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate, diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate and 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
Claim 2
Dependent Claim
82 words
A corrosion inhibiting composition comprising 15 wt. % to 85 wt. % of nitroalkane containing 1-3 carbon atoms and 85 wt % to 15 wt % by weight of an amine neutralized phosphate ester selected from the group consisting of 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate, tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate, diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate and 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
Claim 3
Dependent Claim
11 words
The composition of claim 1 in which the nitroalkane is nitromethane.
Claim 4
Dependent Claim
23 words
The composition of claim 2 in which the amine neutralized phosphate ester is the 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 5
Dependent Claim
27 words
The composition of claim 1 comprising 40 to 60 wt % nitroalkane and 60 to 40 wt % 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 6
Dependent Claim
11 words
The composition of claim 4 in which the nitroalkane is nitromethane.
Claim 7
Dependent Claim
28 words
The composition of claim 2 in which the amine neutralized phosphate ester is the tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 8
Dependent Claim
32 words
The composition of claim 1 comprising 40 to 60 wt % nitroalkane and 60 to 40 wt % tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 9
Dependent Claim
11 words
The composition of claim 7 in which the nitroalkane is nitromethane.
Claim 10
Dependent Claim
23 words
The composition of claim 2 in which the amine neutralized phosphate ester is the diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate.
Claim 11
Dependent Claim
27 words
The composition of claim 1 comprising 40 to 60 wt % nitroalkane and 60 to 40 wt % diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate.
Claim 12
Dependent Claim
11 words
The composition of claim 10 in which the nitroalkane is nitromethane.
Claim 13
Dependent Claim
23 words
The composition of claim 2 in which the amine neutralized phosphate ester is the 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
Claim 14
Dependent Claim
27 words
The composition of claim 1 comprising 40 to 60 wt % nitroalkane and 60 to 40 wt % 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
Claim 15
Dependent Claim
11 words
The composition of claim 13 in which the nitroalkane is nitromethane.
Claim 16
Dependent Claim
37 words
In an aerosol composition containing an aqueous aerosol-dispersible media and a propellant, the improvement which comprises the presence of the corrosion inhibitor of claim 1 in an amount sufficient to provide corrosion inhibition to the aerosol composition.
Claim 17
Dependent Claim
27 words
The composition of claim 15 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is 2-ethylhexylamine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 18
Dependent Claim
32 words
The composition of claim 15 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 19
Dependent Claim
27 words
The composition of claim 15 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate.
Claim 20
Dependent Claim
27 words
The composition of claim 15 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
Claim 21
Dependent Claim
36 words
In an aerosol propellant for use in a water-based aerosol composition, the improvement which comprises the presence of the corrosion inhibitor of claim 1 in an amount sufficient to provide corrosion inhibition to the aerosol composition.
Claim 22
Dependent Claim
27 words
The composition of claim 20 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is 2-ethylhexylamine salt of mixed mono- and di-iooctyl acid phosphate.
Claim 23
Dependent Claim
32 words
The composition of claim 20 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is tertiary C 12 alkyl primary amine salt of mixed mono- and di-isooctyl acid phosphate.
Claim 24
Dependent Claim
27 words
The composition of claim 20 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is diethylamine salt of mixed mono- and di-butoxyethyl acid phosphate.
Claim 25
Dependent Claim
27 words
The composition of claim 20 in which the nitroalkane is nitromethane and the amine neutralized phosphate ester is 2-ethylhexylamine salt of mixed mono- and di-tridecyl acid phosphate.
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) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |