US5061389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water surface enhancer and lubricant for formed metal surfaces
Assignee: PPG Industries Ohio Inc
•
Filing: 1990-04-19
•
Granted: 1991-10-29
•
Expires: 2010-04-19
Abstract
Abstract A composition and process for reducing the coefficient of friction on the surface of formed metal structures, such as aluminum cans, by lubricating the surface with a blend of a polyethylene glycol ester with a fluoride compound.
Inventors
- 👤 David W. Reichgott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M125/00; C10M125/18; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/28; C10M145/38; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
29 words
A composition for lubricating the external surfaces of aluminum cans comprising a fluoride compound and a polyethylene glycol ester or mixtures of polyethylene glycol esters in an aqueous medium.
Claim 2
Dependent Claim
29 words
A composition for lubricating the external surfaces of aluminum cans comprising a fluoride compound and a polyethylene glycol ester or mixtures of polyethylene glycol esters in an aqueous medium.
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the concentration of said polyethylene glycol ester or mixtures of polyethylene glycol esters in said aqueous medium is from about 1.0% to about 10.0% by weight.
Claim 4
Dependent Claim
32 words
The composition of claim 1 wherein the concentration of said polyethylene glycol ester or mixtures of polyethylene glycol esters in said aqueous medium is from about 2.5% to about 5.0% by weight.
Claim 5
Dependent Claim
24 words
The composition of claim 1 wherein the concentration of said fluoride in said aqueous medium is from about 0.01% to about 0.5% by weight.
Claim 6
Dependent Claim
20 words
The composition of claim 1 wherein said polyethylene glycol ester is a water soluble derivative of a saturated fatty acid.
Claim 7
Dependent Claim
15 words
The composition of claim 5 wherein said polyethylene glycol ester in an ethoxylated stearic acid.
Claim 8
Dependent Claim
15 words
The composition of claim 5 wherein said polyethylene glycol ester is an ethoxylated lauric acid.
Claim 9
Dependent Claim
14 words
The composition of claim 5 wherein said polyethylene glycol ester is polyethylene glycol monostearate.
Claim 10
Dependent Claim
14 words
The composition of claim 5 wherein said polyethylene glycol ester is polyethylene glycol monolaurate.
Claim 11
Dependent Claim
22 words
The composition of claim 1 wherein said fluoride compound is selected from the group consisting of inorganic fluoride salts and hydrofluoric acid.
Claim 12
Dependent Claim
12 words
The composition of claim 1 wherein said fluoride compound is ammonium fluoride.
Claim 13
Dependent Claim
12 words
The composition of claim 1 wherein said fluoride compound is sodium fluoride.
Claim 14
Dependent Claim
19 words
The composition of claim 10 wherein said fluoride compound is selected from the group consisting of alkali metal fluorides.
Claim 15
Dependent Claim
14 words
The composition of claim 10 wherein said fluoride compound is an ammonium fluoride salt.
Claim 16
Dependent Claim
42 words
A process for lubricating the external surface of a formed metal structure comprising applying to said external surface a sufficient amount for the purpose of a lubricant comprising a fluoride compound and a polyethylene glycol ester or mixtures of polyethylene glycol esters.
Claim 17
Dependent Claim
42 words
A process for lubricating the external surface of a formed metal structure comprising applying to said external surface a sufficient amount for the purpose of a lubricant comprising a fluoride compound and a polyethylene glycol ester or mixtures of polyethylene glycol esters.
Claim 18
Dependent Claim
15 words
A process according to claim 15 wherein said formed metal structure is an aluminum can.
Claim 19
Dependent Claim
27 words
A process according to claim 15 wherein said lubricant is dissolved in an aqueous medium in a concentration of from about 0.1% to about 5.0% by volume.
Claim 20
Dependent Claim
40 words
A process according to claim 17 wherein said aqueous medium containing said lubricant is added to the final rinse water of a can cleaning operation applied by spraying said final rinse water onto said external surface of said formed structure.
Claim 21
Dependent Claim
28 words
A process according to claim 15 wherein said lubricant is applied onto said external surface of said formed structure after said formed structure is washed by a cleaner.
Claim 22
Dependent Claim
13 words
A process according to claim 19 wherein said cleaner is an acid cleaner.
Claim 23
Dependent Claim
13 words
A process according to claim 19 wherein said cleaner is an alkaline cleaner.
Claim 24
Dependent Claim
21 words
A process according to claim 15 wherein said polyethylene glycol ester is a water soluble derivative of a saturated fatty acid.
Claim 25
Dependent Claim
16 words
A process according to claim 15 wherein said polyethylene glycol ester is an ethoxylated stearic acid.
Claim 26
Dependent Claim
16 words
A process according to claim 15 wherein said polyethylene glycol ester is an ethoxylated lauric acid.
Claim 27
Dependent Claim
15 words
A process according to claim 15 wherein said polyethylene glycol ester is polyethylene glycol monostearate.
Claim 28
Dependent Claim
15 words
A process according to claim 15 wherein said polyethylene glycol ester is polyethylene glycol monolaurate.
Claim 29
Dependent Claim
23 words
A process according to claim 15 wherein said fluoride compound is selected from the group consisting of inorganic fluoride salts and hydrofluoric acid.
Claim 30
Dependent Claim
13 words
A process according to claim 15 wherein said fluoride compound is ammonium fluoride.
Claim 31
Dependent Claim
12 words
A process according to claim 15 wherein said fluoride is sodium fluoride.
Claim 32
Dependent Claim
32 words
A process according to claim 17 wherein the concentration of said polyethylene glycol ester or mixtures of polyethylene glycol esters in said final rinse water is from about 0.001% to about 0.5%.
Claim 33
Dependent Claim
32 words
A process according to claim 17 wherein the concentration of said polyethylene glycol ester or mixtures of polyethylene glycol esters in said final rinse water is from about 0.004% to about 0.03%.
Claim 34
Dependent Claim
30 words
A process according to claim 17 wherein the concentration of said fluoride compound in said final rinse water is from about 0.3 to about 40 parts per million as F.
Claim 35
Dependent Claim
28 words
A process according to claim 17 wherein said fluoride compound and polyethylene glycol ester or mixtures of polyethylene glycol esters are added separately to said final rinse water.
Claim 36
Dependent Claim
20 words
A process according to claim 27 wherein said fluoride compound is selected from the group consisting of alkali metal fluorides.
Claim 37
Dependent Claim
15 words
A process according to claim 27 wherein said fluoride compound is an ammonium fluoride salt.
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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) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |