US4585565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metalworking lubricant comprising mineral oil and alkoxyalkyl ester
Assignee: Alcoa Corp
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Filing: 1984-11-23
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Granted: 1986-04-29
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Expires: 2004-11-23
Abstract
Abstract A lubricant composition comprising a major proportion of mineral oil and a minor proportion of an alkoxyalkyl ester having the general formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group. A particularly preferred composition comprises about 30 wt % butoxyethyl stearate dissolved in about 70 wt % mineral oil. A metalworking lubricant emulsion is formed by emulsifying about 2-10 wt % of the composition in about 90-98 wt % water. A particularly preferred emulsion comprises about 5 wt % of the composition in about 95 wt % water. The emulsion is suitable for hot rolling and cold rolling aluminum and aluminum alloys.
Inventors
- 👤 Mei-Yuan Tsai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:23
CPC Classifications
C; C10; C10M; C10M173/00; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C10M129/42; C10M129/68; C10M129/76; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/126; C10M2207/127; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/287; C10M2207/288; C10M2207/289; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; 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: 23
Claim 1
Independent Claim
84 words
A lubricant emulsion comprising (a) about 90-98 wt % water, and (b) about 2-10 wt % of a lubricant composition emulsified in the water, said composition comprising about 60-95 wt % mineral oil and about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group.
Claim 2
Dependent Claim
84 words
A lubricant emulsion comprising (a) about 90-98 wt % water, and (b) about 2-10 wt % of a lubricant composition emulsified in the water, said composition comprising about 60-95 wt % mineral oil and about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group.
Claim 3
Dependent Claim
21 words
The emulsion of claim 1 comprising about 3-7 wt % of the lubricant composition emulsified in about 93-97 wt % water.
Claim 4
Dependent Claim
21 words
The emulsion of claim 1 comprising about 5 wt % of the lubricant composition dispersed in about 95 wt % water.
Claim 5
Dependent Claim
20 words
The emulsion of claim 1 comprising about 65-75 wt % mineral oil and about 25-35 wt % of the ester.
Claim 6
Dependent Claim
19 words
The emulsion of claim 1 wherein R 1 is a C 4 -C 8 saturated straight chain alkyl group.
Claim 7
Dependent Claim
12 words
The emulsion of claim 1 wherein R 1 is a butyl group.
Claim 8
Dependent Claim
20 words
The emulsion of claim 1 wherein R 2 is a C 11 -C 17 straight chain alkyl or alkenyl group.
Claim 9
Dependent Claim
18 words
The emulsion of claim 1 wherein R 2 is a C 17 saturated alkyl or monounsaturated alkenyl group.
Claim 10
Dependent Claim
25 words
The emulsion of claim 1 wherein said alkoxyalkyl ester is selected from the group consisting of butoxyethyl stearate, butoxyethyl oleate, methoxyethyl stearate and methoxyethyl oleate.
Claim 11
Dependent Claim
12 words
The emulsion of claim 1 wherein said alkoxyalkyl ester is butoxyethyl stearate.
Claim 12
Dependent Claim
31 words
The emulsion of claim 1 further comprising (c) less than about 10 wt % (based on the weight of the composition) of a C 8 -C 40 mono- or dicarboxylic acid.
Claim 13
Dependent Claim
16 words
The composition of claim 11 wherein said acid comprises about 0.5-4 wt % of the composition.
Claim 14
Dependent Claim
16 words
The composition of claim 11 wherein said acid comprises about 3 wt % of the composition.
Claim 15
Dependent Claim
11 words
The composition of claim 12 wherein said acid comprises oleic acid.
Claim 16
Dependent Claim
20 words
The emulsion of claim 11 comprising about 65-75 wt % mineral oil and about 25-35 wt % of the ester.
Claim 17
Dependent Claim
97 words
A lubricant emulsion containing essentially no fatty acids, fatty acid esters or soaps and consisting essentially of (a) about 90-98 wt % water, and (b) about 2-10 wt % of a lubricant composition emulsified in the water, said composition comprising about 60-95 wt % mineral oil and about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group.
Claim 18
Dependent Claim
97 words
A lubricant emulsion containing essentially no fatty acids, fatty acid esters or soaps and consisting essentially of (a) about 90-98 wt % water, and (b) about 2-10 wt % of a lubricant composition emulsified in the water, said composition comprising about 60-95 wt % mineral oil and about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group.
Claim 19
Dependent Claim
78 words
A lubricant composition comprising (a) about 60-95 wt % mineral oil, (b) about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group, and (c) about 0.5-10 wt % of a C 8 -C 40 mono- or dicarboxylic acid.
Claim 20
Dependent Claim
78 words
A lubricant composition comprising (a) about 60-95 wt % mineral oil, (b) about 5-40 wt % of an alkoxyalkyl ester having the formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 is a C 1 to C 8 alkyl group and R 2 is a C 7 to C 19 alkyl or alkenyl group, and (c) about 0.5-10 wt % of a C 8 -C 40 mono- or dicarboxylic acid.
Claim 21
Dependent Claim
24 words
The composition of claim 17 wherein said ester is selected from the group consisting of butoxyethyl stearate, butoxyethyl oleate, methoxyethyl stearate and methoxyethyl oleate.
Claim 22
Dependent Claim
16 words
The composition of claim 17 wherein said acid comprises about 0.5-4 wt % of the composition.
Claim 23
Dependent Claim
11 words
The composition of claim 17 wherein said acid comprises oleic acid.
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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |