US4193881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant for metal strip
Assignee: Rio Tinto Switzerland AG
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Filing: 1978-08-25
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Granted: 1980-03-18
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Expires: 1998-08-25
Abstract
Abstract A lubricant for metal strip, in particular metal strip made of aluminum or aluminum alloy, and used for packaging purposes, in particular for packaging foodstuffs. The lubricant contains the aluminum or magnesium salt of a saturated C11 to C19 monocarboxylic acid as its main constituent. The lubricant also contains a dispersing agent.
Inventors
- 👤 Rudolf Baur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:48
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/08; C10M105/22; C10M105/24; C10M111/00; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10N; C10N2010/00; C10N2010/06; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
85 words
A lubricant for metal strip for the processing of blank and lacquered aluminum or aluminum alloy strip used for packaging purposes, in particular for packaging foodstuffs, said lubricant consisting essentially of a minimum of 60% of the aluminum or magnesium salt of a saturated C 11 to C 19 monocarboxylic acid or mixtures thereof as the main constituent and from 10 to 30% of at least one dispersion agent so that said lubricant may be deposited on the surface of the strip from a dispersion.
Claim 2
Dependent Claim
85 words
A lubricant for metal strip for the processing of blank and lacquered aluminum or aluminum alloy strip used for packaging purposes, in particular for packaging foodstuffs, said lubricant consisting essentially of a minimum of 60% of the aluminum or magnesium salt of a saturated C 11 to C 19 monocarboxylic acid or mixtures thereof as the main constituent and from 10 to 30% of at least one dispersion agent so that said lubricant may be deposited on the surface of the strip from a dispersion.
Claim 3
Dependent Claim
18 words
A lubricant according to claim 1 wherein the lubricant contains aluminum tri-stearate or magnesium di-stearate or mixtures thereof.
Claim 4
Dependent Claim
49 words
A lubricant according to claim 1 wherein said monocarboxylic acid salt constituent consists essentially of a mixture of: 85-95% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid, and 5-15% of a magnesium salt of a saturated C 11 to C 19 monocarboxylic acid.
Claim 5
Dependent Claim
49 words
A lubricant according to claim 3 wherein said monocarboxylic acid salt constituent consists essentially of a mixture of: 89-94% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid, and 6-11% of a magnesium salt of a saturated C 11 to C 19 monocarboxylic acid.
Claim 6
Dependent Claim
49 words
A lubricant according to claim 1 wherein said monocarboxylic acid salt constituent consists essentially of a mixture of: 85-95% of a mangesium salt of a saturated C 11 to C 19 monocarboxylic acid, and 5-15% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid.
Claim 7
Dependent Claim
49 words
A lubricant according to claim 5 wherein said monocarboxylic acid salt constituent consists essentially of a mixture of: 89-94% of a magnesium salt of a saturated C 11 to C 19 monocarboxylic acid, and 6-11% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid.
Claim 8
Dependent Claim
32 words
A lubricant according to claim 1 wherein mixtures of said aluminum and magnesium salts are used and wherein the aluminum salt and the magnesium salt are salts of the same monocarboxylic acids.
Claim 9
Dependent Claim
53 words
A lubricant according to claim 1 wherein the lubricant consists essentially of a mixture of: 60-80% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid; 2-10% of a magnesium salt of a saturated C 11 to C 19 monocarboxylic acid; and 10-30% of at least one dispersion agent.
Claim 10
Dependent Claim
54 words
A lubricant according to claim 1 in which the lubricant consists essentially of a mixture of: 60-80% of a magnesium salt of a saturated C 11 to C 19 monocarboxylic acid; 2-10% of an aluminum salt of a saturated C 11 to C 19 monocarboxylic acid; and 10-30% of at least one dispersion agent.
Claim 11
Dependent Claim
85 words
A lubricant according to claim 1 wherein the lubricant contains at least one dispersion agent selected from the group consisting of: synthetic triglycerides; paraffin oils; poly-isobutenes; aliphatic C 4 to C 16 alcohols; esters of a methyl or ethyl alcohol with a C 11 to C 17 monocarboxylic acid; esters of an aliphatic C 3 to C 6 alcohol with a saturated C 11 to C 17 monocarboxylic acid; esters of a C 1 to C 6 alcohol with a ω-oxymonocarboxylic acid; and mixtures thereof.
Claim 12
Dependent Claim
29 words
A lubricant according to claim 10 wherein the dispersion agent is a methyl or ethyl ester of a saturated C 11 to C 17 monocarboxylic acid or mixtures thereof.
Claim 13
Dependent Claim
13 words
A lubricant according to claim 11 wherein the dispersion agent is methyl palmitate.
Claim 14
Dependent Claim
26 words
A lubricant according to claim 10 wherein the dispersion agent contains a solvent selected from the group of liquid aliphatic hydrocarbons, aliphatic alcohols, and aliphatic ketones.
Claim 15
Dependent Claim
11 words
A lubricant according to claim 13 wherein the solvent is n-hexane.
Claim 16
Dependent Claim
14 words
A lubricant according to claim 10 wherein the lubricant also contains an oxidation inhibitor.
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) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |