Patent US4594111A successfully refreshed from Google Patents.
US4594111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid phase cleaner-solvent
Assignee: COONAN ANNA D
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Filing: 1984-10-04
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Granted: 1986-06-10
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Expires: 2004-10-04
Abstract
Abstract A liquid phase cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than 10% by weight of sodium chloride, from about 1/2 to 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1% to about 15% by weight of isopropyl alcohol and from about 5% to about 40% by weight of propylene carbonate and a process for removing oxidation from metal surfaces using the liquid phase cleaner-solvent.
Inventors
- 👤 Edmund C. Coonan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:09
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/24; C11; C11D; C11D3/00; C11D3/43
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
88 words
An liquid aqueous cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than about 10% by weight of sodium chloride, from about 1/2 of 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1% to about 15% by weight of isopropyl alcohol and from about 5% to about 40% by weight of propylene carbonate said components constituting essentially 100 weight percent of the cleaner-solvent.
Claim 2
Dependent Claim
88 words
An liquid aqueous cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than about 10% by weight of sodium chloride, from about 1/2 of 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1% to about 15% by weight of isopropyl alcohol and from about 5% to about 40% by weight of propylene carbonate said components constituting essentially 100 weight percent of the cleaner-solvent.
Claim 3
Dependent Claim
9 words
The cleaner-solvent of claim 1 further comprising sodium chloride.
Claim 4
Dependent Claim
68 words
The cleaner-solvent of claim 2 wherein water is about 59.4% by weight of the cleaner-solvent, sodium chloride is about 5.5% by weight of the cleaner-solvent, coconut amide is about 7.6% by weight of the cleaner-solvent, tall oil fatty acid is about 0.6% by weight of the cleaner-solvent, isopropyl alcohol is about 6.2% by weight of the cleaner-solvent, and propylene carbonate is about 20.5% by weight of the cleaner-solvent.
Claim 5
Dependent Claim
19 words
The liquid cleaner-solvent of claim wherein water is from about 50% to about 90% by weight of the cleaner-solvent.
Claim 6
Dependent Claim
21 words
The liquid cleaner-solvent of claim 3 wherein sodium chloride is no greater than about 10% by weight of the liquid cleaner-solvent.
Claim 7
Dependent Claim
22 words
The liquid cleaner-solvent of claim 3 wherein coconut amide is from about 0.5% to about 10% by weight of the liquid cleaner-solvent.
Claim 8
Dependent Claim
24 words
The liquid cleaner-solvent of claim 3 wherein tall oil fatty acid is from about 0.5% to about 8% by weight of the liquid cleaner-solvent.
Claim 9
Dependent Claim
22 words
The liquid cleaner-solvent of claim 3 wherein isopropyl alcohol is from about 0.5% to about 15% by weight of the liquid cleaner-solvent.
Claim 10
Dependent Claim
22 words
The liquid cleaner-solvent of claim 3 wherein propylene carbonate is from about 5% to about 40% by weight of the liquid cleaner-solvent.
Claim 11
Independent Claim
154 words
A method for removing oxidation products from metal surfaces comprising: (a) preparing an aqueous cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than about 10% by weight of sodium chloride, from about 1/2 of 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1/2 of 1% to about 15% by weight of highly pure isopropyl alcohol and from about 5% to about 40% by weight of propylene carbonate by sequentially adding the sodium chloride, the coconut amide, the tall oil fatty acid, the isopropyl alcohol and the propylene carbonate to the water while slowly agitating the water said components constituting essentially 100 weight percent of the cleaner-solvent and (b) applying the resulting liquid cleaner-solvent to a metal surface fo period sufficiently long to dissolve oxidation products from the surface.
Claim 12
Independent Claim
154 words
A method for removing oxidation products from metal surfaces comprising: (a) preparing an aqueous cleaner-solvent consisting essentially of from about 50% to about 90% by weight of water, less than about 10% by weight of sodium chloride, from about 1/2 of 1% to about 10% by weight of coconut amide, from about 1/2 of 1% to about 8% by weight of a tall oil fatty acid, from about 1/2 of 1% to about 15% by weight of highly pure isopropyl alcohol and from about 5% to about 40% by weight of propylene carbonate by sequentially adding the sodium chloride, the coconut amide, the tall oil fatty acid, the isopropyl alcohol and the propylene carbonate to the water while slowly agitating the water said components constituting essentially 100 weight percent of the cleaner-solvent and (b) applying the resulting liquid cleaner-solvent to a metal surface fo period sufficiently long to dissolve oxidation products from the surface.
Claim 13
Dependent Claim
21 words
The method of claim 10 further comprising the step of flushing the surface with clear water after the oxidation has dissolved.
Claim 14
Dependent Claim
30 words
The method of claim 10 further comprising the step of stropping the metal surface with a blunt metal object after the liquid cleaner-solvent has been applied to the oxidized surface.
Claim 15
Dependent Claim
24 words
The method of claim 12 further comprising the step of rinsing the metal surface with clear water upon the conclusion of the stropping step.
Claim 16
Dependent Claim
22 words
The method of claim 10 further comprising the step of vigorously brushing the metal surface after the liquid cleaner-solvent is applied thereto.
Claim 17
Dependent Claim
27 words
The method of claim 10 further comprising applying the liquid cleaner-solvent to the metal surface by gentle wiping with a clean cloth soaked with the liquid cleaner-solvent.
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) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |