US4452711A
Expired / Lapsed
US
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Aqueous metalworking lubricant containing polyoxypropylene-polyoxyethylene-polyoxypropylene block copolymers
Assignee: Alcoa Corp
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Filing: 1983-01-20
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Granted: 1984-06-05
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Expires: 2003-01-20
Abstract
Abstract An aqueous metalworking lubricant composition comprising a water-soluble mixture of polyoxypropylene-polyoxyethylene-polyoxypropylene block copolymers, a water-soluble carboxylic acid, a water-soluble alkanolamine and water. A preferred lubricant composition also comprises an antifoam agent. The lubricant composition is suitable for both cold rolling and hot rolling of metals such as aluminum and aluminum alloys.
Inventors
- 👤 Joseph T. Laemmle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:19
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C10M129/42; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/34; C10M145/38; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/126; C10M2207/127; C10M2207/129; C10M2207/22; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/107; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
105 words
A lubricant composition comprising (a) about 1.0-20 wt% of a water-soluble mixture of polyoxyethylene-polyoxypropylene block copolymers containing a single polyoxyethylene chain and two polyoxypropylene chains attached to the polyoxyethylene chain, the average molecular weight of the polyoxypropylene chains in the mixture being at least 900 and the polyoxyethylene chains in the mixture constituting about 10-80 wt% of the mixture; (b) about 0.5-10 wt% of a water-soluble carboxylic acid of the general formula C.sub.m H.sub.2m-n-r+2 (COOH).sub.r where m is an integer from 11 to 36, n=0, 2, 4 or 6 and r=1 or 2; (c) about 0.5-10 wt% of a water-soluble alkanolamine; and (d) remainder, water.
Claim 2
Dependent Claim
105 words
A lubricant composition comprising (a) about 1.0-20 wt% of a water-soluble mixture of polyoxyethylene-polyoxypropylene block copolymers containing a single polyoxyethylene chain and two polyoxypropylene chains attached to the polyoxyethylene chain, the average molecular weight of the polyoxypropylene chains in the mixture being at least 900 and the polyoxyethylene chains in the mixture constituting about 10-80 wt% of the mixture; (b) about 0.5-10 wt% of a water-soluble carboxylic acid of the general formula C.sub.m H.sub.2m-n-r+2 (COOH).sub.r where m is an integer from 11 to 36, n=0, 2, 4 or 6 and r=1 or 2; (c) about 0.5-10 wt% of a water-soluble alkanolamine; and (d) remainder, water.
Claim 3
Dependent Claim
22 words
The lubricant composition of claim 1 wherein the average molecular weight of polyoxypropylene chains in the mixture is about 1000 to 3100.
Claim 4
Dependent Claim
20 words
The lubricant composition of claim 1 wherein the polyoxyethylene chains in the mixture constitute about 20 wt% of the mixture.
Claim 5
Dependent Claim
20 words
The lubricant composition of claim 1 wherein the mixture of polyoxyethylene-polyoxypropylene block copolymers comprises about 2.5-10 wt% of the composition.
Claim 6
Dependent Claim
20 words
The lubricant composition of claim 4 wherein the mixture of polyoxyethylene-polyoxypropylene block copolymers comprises about 5 wt% of the composition.
Claim 7
Dependent Claim
22 words
The lubricant composition of claim 1 wherein said carboxylic acid comprises a saturated or monounsaturated C 12 to C 20 monocarboxylic acid.
Claim 8
Dependent Claim
16 words
The lubricant composition of claim 6 wherein said carboxylic acid comprises oleic acid or lauric acid.
Claim 9
Dependent Claim
17 words
The lubricant composition of claim 1 wherein said carboxylic acid comprises about 0.5-5 wt% of the composition.
Claim 10
Dependent Claim
17 words
The lubricant composition of claim 8 wherein said carboxylic acid comprises about 1-2 wt% of the composition.
Claim 11
Dependent Claim
20 words
The lubricant composition of claim 1 wherein said alkanolamine is selected from the group consisting of triethanolamine, diethanolamine and ethyldiisopropanolamine.
Claim 12
Dependent Claim
11 words
The lubricant composition of claim 10 wherein said alkanolamine is triethanolamine.
Claim 13
Dependent Claim
12 words
The lubricant composition of claim 1, further comprising (e) an antifoam agent.
Claim 14
Dependent Claim
17 words
The lubricant composition of claim 12 wherein said antifoam agent comprises about 50-100 ppm of the composition.
Claim 15
Dependent Claim
31 words
The lubricant composition of claim 1, further comprising (f) about 0.5-10 wt% of a water-soluble polyoxyethylene or polyoxypropylene alcohol or a water-soluble carboxylic acid ester of a polyoxyethylene or polyoxypropylene alcohol.
Claim 16
Dependent Claim
18 words
The lubricant composition of claim 14 wherein said alcohol or ester comprises about 1 wt% of the composition.
Claim 17
Dependent Claim
126 words
A metalworking lubricant composition suitable for hot rolling of aluminum and aluminum alloy material at a temperature of about 450-1000° F., said composition also being suitable for cold rolling of aluminum and aluminum alloy material, said composition comprising (a) about 1.0-20 wt% of a water-soluble mixture of polyoxyethylene-polyoxypropylene block copolymers containing a single polyoxyethylene chain and two polyoxypropylene chains attached to the polyoxyethylene chain, the average molecular weight of the polyoxypropylene chains in the mixture being about 1000 to 3100 and the polyoxyethylene chains in the mixture constituting about 10-80 wt% of the mixture; (b) about 0.5-10 wt% of a saturated or monounsaturated C 12 to C 20 monocarboxylic acid; (c) about 0.5-10 wt% of a water-soluble alkanolamine; (d) an antifoam agent; and (e) remainder, water.
Claim 18
Dependent Claim
126 words
A metalworking lubricant composition suitable for hot rolling of aluminum and aluminum alloy material at a temperature of about 450-1000° F., said composition also being suitable for cold rolling of aluminum and aluminum alloy material, said composition comprising (a) about 1.0-20 wt% of a water-soluble mixture of polyoxyethylene-polyoxypropylene block copolymers containing a single polyoxyethylene chain and two polyoxypropylene chains attached to the polyoxyethylene chain, the average molecular weight of the polyoxypropylene chains in the mixture being about 1000 to 3100 and the polyoxyethylene chains in the mixture constituting about 10-80 wt% of the mixture; (b) about 0.5-10 wt% of a saturated or monounsaturated C 12 to C 20 monocarboxylic acid; (c) about 0.5-10 wt% of a water-soluble alkanolamine; (d) an antifoam agent; and (e) remainder, water.
Claim 19
Dependent Claim
18 words
The metalworking lubricant composition of claim 16 wherein said antifoam agent comprises about 50-100 ppm of the composition.
Claim 20
Dependent Claim
21 words
The metalworking lubricant composition of claim 16 wherein the mixture of polyoxyethylene-polyoxypropylene block copolymers comprises about 2.5-10 wt% of the composition.
Claim 21
Dependent Claim
22 words
The metalworking lubricant composition of claim 16 wherein the average molecular weight of the polyoxypropylene chains in the mixture is about 1700.
Claim 22
Dependent Claim
21 words
The metalworking lubricant composition of claim 16 wherein the polyoxyethylene chains in the mixture constitute about 20 wt% of the mixture.
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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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |