Patent US3923671A successfully refreshed from Google Patents.
US3923671A
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Metal working lubricant
Assignee: Alcoa Corp
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Filing: 1974-10-03
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Granted: 1975-12-02
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Expires: 1994-10-03
Abstract
Abstract A metal working lubricant which can be used for drawing and ironing of sheet stock as well as used as a mechanical lubricant such as a hydraulic oil in the associated metal working equipment comprises a combination of a carboxylic acid; a film forming and wetting agent which comprises a long chain mono or diester of a carboxylic acid; a non-ionic, non-metallic ester or ether emulsifier; and a mineral oil. The viscosity of the lubricant should be at least 250 Saybolt seconds (SSU) and the lubricant, when emulsified, should preferably have an acidic pH.
Inventors
- 👤 James E Knepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:16
CPC Classifications
C; C10; C10M; C10M173/00; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/109; C10N; C10N2040/00; C10N2040/08; 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: 20
Claim 1
Independent Claim
42 words
A METAL WORKING LUBRICANT DISPERSIBLE IN AN AQUEOUS MEDIA COMPRISING: A. A FATTY CONTAINING AT LEAST 12 CARBON ATOMS INCLUDINNG AT LEAST ONE CARBOXYLIC ACID GROUP; B. AN ALIPHATIC CARBOXYLIC ACID ESTER; C. AT LEAST ONE EMULSIFICATION AGENT; AND D. MINERAL OIL.
Claim 2
Dependent Claim
42 words
A METAL WORKING LUBRICANT DISPERSIBLE IN AN AQUEOUS MEDIA COMPRISING: A. A FATTY CONTAINING AT LEAST 12 CARBON ATOMS INCLUDINNG AT LEAST ONE CARBOXYLIC ACID GROUP; B. AN ALIPHATIC CARBOXYLIC ACID ESTER; C. AT LEAST ONE EMULSIFICATION AGENT; AND D. MINERAL OIL.
Claim 3
Dependent Claim
101 words
FROM 2 TO 8 PARTS OF A CARBOXYLIC ACID HAVING THE FORMULA CMH2M -N (COOH)R WHEREIN M IS AN INTEGER FROM 13 TO 17, N IS 0 OR AN EVEN INTEGER FROM 2 TO 6 ANDD R IS AT LEAST 1 AND NOT GREATER THAN 2; 2. 10 TO 20 PARTS OF AN ALIPHATIC CARBOXYLIC ACID ESTER COMPRISING THE CONDENSATION PRODUCT OF ONE OR MORE 6 18 CARBON MONOCARBOXYLIC ACIDS WITH A POLYOL; 3. 2 TO 10 PARTS OF AT LEAST ONE EMULSIFICATION AGENT SELECTED FROM THE GROUP CONSISTING OF ESTERS OR ETHERS OF 12 TO 18 CARBN MONOCARBOXYLIC ACIDS; AND
Claim 4
Dependent Claim
101 words
FROM 2 TO 8 PARTS OF A CARBOXYLIC ACID HAVING THE FORMULA CMH2M -N (COOH)R WHEREIN M IS AN INTEGER FROM 13 TO 17, N IS 0 OR AN EVEN INTEGER FROM 2 TO 6 ANDD R IS AT LEAST 1 AND NOT GREATER THAN 2; 2. 10 TO 20 PARTS OF AN ALIPHATIC CARBOXYLIC ACID ESTER COMPRISING THE CONDENSATION PRODUCT OF ONE OR MORE 6 18 CARBON MONOCARBOXYLIC ACIDS WITH A POLYOL; 3. 2 TO 10 PARTS OF AT LEAST ONE EMULSIFICATION AGENT SELECTED FROM THE GROUP CONSISTING OF ESTERS OR ETHERS OF 12 TO 18 CARBN MONOCARBOXYLIC ACIDS; AND
Claim 5
Dependent Claim
41 words
The lubricant of claim 1 wherein said carboxylic acid has a formula CmH2m n (COOH)r wherein m is an integer from 11 to 34, n is 0 or an even integer from 2 to 6, and r equals 1 or 2.
Claim 6
Dependent Claim
26 words
10 to 20 parts of an aliphatic carboxylic acid ester comprising the condensation product of one or more 6 18 carbon monocarboxylic acids with a polyol;
Claim 7
Dependent Claim
26 words
10 to 20 parts of an aliphatic carboxylic acid ester comprising the condensation product of one or more 6 18 carbon monocarboxylic acids with a polyol;
Claim 8
Dependent Claim
27 words
2 to 10 parts of at least one emulsification agent selected from the group consisting of esters or ethers of 12 to 18 carbon monocarboxylic acids; and
Claim 9
Dependent Claim
27 words
2 to 10 parts of at least one emulsification agent selected from the group consisting of esters or ethers of 12 to 18 carbon monocarboxylic acids; and
Claim 10
Dependent Claim
34 words
The lubricant containing the carboxylic acid formula of claim 2 wherein m is an integer from 13 to 17, n is 0 or an Even integer from 2 to 4, and r equals 1.
Claim 11
Dependent Claim
49 words
The lubricant of claim 1 wherein said aliphatic carboxylic acid ester comprises an esterification product of a glycol selected from the class consisting of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, and dipropylene glycol with one or more aliphatic monocarboxylic acids containing from 6 to 18 carbon atoms.
Claim 12
Dependent Claim
33 words
FROM 60 TO 80 PARTS BY WEIGHT OF A MINERAL OIL HAVING A SUFFICIENT INITIAL VISCOSITY TO PROVIDE A VISCOSITY OF THE NEAT OIL MIXTURE OF FROM 250 TO 450 SSU AT 100*F.
Claim 13
Dependent Claim
33 words
FROM 60 TO 80 PARTS BY WEIGHT OF A MINERAL OIL HAVING A SUFFICIENT INITIAL VISCOSITY TO PROVIDE A VISCOSITY OF THE NEAT OIL MIXTURE OF FROM 250 TO 450 SSU AT 100*F.
Claim 14
Dependent Claim
33 words
from 60 to 80 parts by weight of a mineral oil having a sufficient initial viscosity to provide a viscosity of the neat oil mixture of from 250 to 450 SSU at 100*F.
Claim 15
Dependent Claim
33 words
from 60 to 80 parts by weight of a mineral oil having a sufficient initial viscosity to provide a viscosity of the neat oil mixture of from 250 to 450 SSU at 100*F.
Claim 16
Dependent Claim
27 words
The lubricant of claim 1 wherein the emulsification agent comprises a non-ionic, non-metallic ester or ether of a monocarboxylic acid containing from 12 to 18 carbon atoms.
Claim 17
Dependent Claim
26 words
The lubricant of claim 5 wherein said emulsification agent comprises the condensation product of ethylene oxide with an alcohol containing from 12 to 18 carbon atoms.
Claim 18
Dependent Claim
43 words
The lubricant of claim 5 wherein the emulsification agent comprises a mixture of the condensation product of ethylene oxide with a 12 to 18 carbon alcohol and the esterification product of a polyol with one or more 12 to 18 carbon monocarboxylic acids.
Claim 19
Dependent Claim
34 words
A METAL WORKING LUBRICANT COMPRISING A DISPERSION OF FROM 10 TO 30 PARTS BY WEIGHT NEAT OIL AND FROM 70 TO 90 PARTS BY WEIGHT WATER, SAID NEAT OIL COMPRISING IN PARTS BY WEIGHT.
Claim 20
Dependent Claim
34 words
A METAL WORKING LUBRICANT COMPRISING A DISPERSION OF FROM 10 TO 30 PARTS BY WEIGHT NEAT OIL AND FROM 70 TO 90 PARTS BY WEIGHT WATER, SAID NEAT OIL COMPRISING IN PARTS BY WEIGHT.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |