US4042515A
Expired / Lapsed
US
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Anhydrous deep-drawing lubricant
Assignee: Beverolfabrieken BV
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Filing: 1975-08-15
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Granted: 1977-08-16
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Expires: 1995-08-15
Abstract
Abstract Anhydrous deep-drawing agents having improved wetting and deep-drawing properties are described which can be applied to the surface of a metal to be drawn well in advance of the drawing process. The agent consists essentially of a deep-drawing mineral oil carrier in which is dissolved dimeric carboxylic acids prepared by oligomerization of unsaturated fatty acids having 16 - 26 carbon atoms.
Inventors
- 👤 Fredericus Bastiaan van Zalm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:10
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
51 words
An anyhydrous deep-drawing agent consisting essentially of a deep-drawing mineral oil having dissolved therein 1-50% by weight, based on the mineral oil, of dimeric carboxylic acids prepared by oligomerization of unsaturated fatty acids of 16-26 carbon atoms under pressure at a temperature of 180°-360° C. for about 3 to 10 hours.
Claim 2
Dependent Claim
51 words
An anyhydrous deep-drawing agent consisting essentially of a deep-drawing mineral oil having dissolved therein 1-50% by weight, based on the mineral oil, of dimeric carboxylic acids prepared by oligomerization of unsaturated fatty acids of 16-26 carbon atoms under pressure at a temperature of 180°-360° C. for about 3 to 10 hours.
Claim 3
Dependent Claim
19 words
A composition according to claim 1, wherein said mineral oil has a viscosity of 20-40 cS at 50° C.
Claim 4
Dependent Claim
21 words
A composition according to claim 2, wherein said unsaturated fatty acid is oleic acid, ricinoleic acid, linoleic acid or oleostearic acid.
Claim 5
Dependent Claim
16 words
A composition according to claim 3 containing about 1-15% by weight of said dimeric carboxylic acid.
Claim 6
Dependent Claim
47 words
A composition according to claim 3 further containing an auxiliary agent selected from the group consisting of nonyl alcohol, lauryl alcohol, and nonyl phenol in which both said acid and said mineral oil are soluble to improve the solubility of said acid in the mineral oil carrier.
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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |