US3928401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble triglyceride compositions and method for their preparation
Assignee: Henkel Corp
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Filing: 1974-01-31
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Granted: 1975-12-23
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Expires: 1994-01-31
Abstract
Abstract Water soluble mixed ester lubricants derived from triglycerides are obtained by transesterifying a triglyceride with a low molecular weight polyoxyethylene glycol in the presence of shortchain mono- or dicarboxylic acids. The mixed ester compositions of this invention are readily water soluble and are excellent lubricants for metalworking operations. Water solubility is achieved with the present mixed ester products even though they have higher triglyceride contents than previously known ester lubricants.
Inventors
- 👤 Robert J Sturwold
- 👤 Fred O Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:35
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C67/00; C07C67/10; C10M173/00; C10M173/02; C11; C11C; C11C3/00; C11C3/04; 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; C10M2207/284; C10M2207/285; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/11; C10M2209/111; C10N; C10N2040/00; C10N2040/06; C10N2040/08; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/46; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
A WATER SOLUBLE MIXED ESTER PRODUCT OBTAINED BY THE SINGLE-STEP TRANSESTERIFICATION OF: A. A TRIGLYCERIDE SELECTED FROM THE GROUP CONSISITNG OF ANIMAL OILS, ANIMAL FATS, DRYING VEGETABLE OIL, SEMI-DRYING VEGETABLE OILS AND NON-DRYING VEGETABLE OILS; B. A POLYOXYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT FROM ABOUT 400 TO 800; AND C. A CARBOXYLIC ACID CONTAINING ONE OR TWO CARBOXYL GROUPS AND FROM 2 TO 12 CARBON ATOMS, SAID REACTANTS (A), (B) AND (C) RESPECTIVELY COMPRISING 5 TO 35%, 60 TO 85% AND 1 TO 20%, BY WEIGHT, OF THE TOTAL CHARGE.
Claim 2
Dependent Claim
91 words
A WATER SOLUBLE MIXED ESTER PRODUCT OBTAINED BY THE SINGLE-STEP TRANSESTERIFICATION OF: A. A TRIGLYCERIDE SELECTED FROM THE GROUP CONSISITNG OF ANIMAL OILS, ANIMAL FATS, DRYING VEGETABLE OIL, SEMI-DRYING VEGETABLE OILS AND NON-DRYING VEGETABLE OILS; B. A POLYOXYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT FROM ABOUT 400 TO 800; AND C. A CARBOXYLIC ACID CONTAINING ONE OR TWO CARBOXYL GROUPS AND FROM 2 TO 12 CARBON ATOMS, SAID REACTANTS (A), (B) AND (C) RESPECTIVELY COMPRISING 5 TO 35%, 60 TO 85% AND 1 TO 20%, BY WEIGHT, OF THE TOTAL CHARGE.
Claim 3
Dependent Claim
27 words
The water soluble mixed ester product of claim 1 wherein (a) is derived predominantly from C18 fatty acids containing ethylenic unsaturation and (c) is an aliphatic acid.
Claim 4
Dependent Claim
44 words
The water soluble mixed ester product of claim 2 having an acid value less than about 10 with flash and fire points greater than 500*F, a 210*F viscosity from about 10 to 20 centistokes and a 100*F viscosity from about 60 to 120 centistokes.
Claim 5
Dependent Claim
39 words
The water soluble mixed ester product of claim 2 wherein (a) is an oleic- linoleic acid oil or linoleic acid oil and (c) is a saturated, straight-chain aliphatic mono- or dicarboxylic acid containing from 6 to 10 carbon atoms.
Claim 6
Dependent Claim
17 words
The water soluble mixed ester product of claim 4 where (a) is linseed oil or soybean oil.
Claim 7
Dependent Claim
28 words
The water soluble mixed ester product of claim 4 wherein the reactant charge is comprised 10 to 30% (a), 65 to 75% (b) and 5 to 15% (c).
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |