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US4696911A
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Nickel boride-polymer catalyst
Assignee: Unilever Patent Holdings BV
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Filing: 1986-10-16
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Granted: 1987-09-29
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Expires: 2006-10-16
Abstract
Abstract Nickel boride hydrogenation catalysts stabilized with polyvinylpyrrolidone, having constant excellent quality, are prepared by incorporating glycerol monooleate before the alcohol is evaporated off.
Inventors
- 👤 Hiepke Boerma
- 👤 Rudolph O. De Jongh
- 👤 Cornelis Van Dijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:18
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/068; B01J31/26; B01J31/28; C; C11; C11C; C11C3/00; C11C3/12; C11C3/123; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
41 words
Catalyst composition comprising finely dispersed nickel boride stabilised with a linear polymer containing pyrrolidone groups, in which the composition also contains a partial fatty acid polyol ester in an amount which ranges between 5 and 0.5 times the weight of nickel.
Claim 2
Dependent Claim
41 words
Catalyst composition comprising finely dispersed nickel boride stabilised with a linear polymer containing pyrrolidone groups, in which the composition also contains a partial fatty acid polyol ester in an amount which ranges between 5 and 0.5 times the weight of nickel.
Claim 3
Dependent Claim
17 words
Catalyst according to claim 1, in which the partial fatty acid polyol ester is a glycerol ester.
Claim 4
Dependent Claim
22 words
Catalyst according to claim 1, in which the partial fatty acid polyol ester is a C 10 -C 26 fatty acid ester.
Claim 5
Dependent Claim
21 words
Catalyst according to claim 1, in which the fatty acid group of the ester contains at least one ethenic double bond.
Claim 6
Dependent Claim
27 words
Catalyst according to claim 1, in which the catalyst composition is dispersed in a medium of the class consisting of alcohol, fatty ester or fatty amide material.
Claim 7
Dependent Claim
59 words
Process for the preparation of a catalyst composition according to claim 1, whereby an at least partly dissolved nickel salt is reduced with alkali borohydride in the presence of a linear polymer which is also at least partly dissolved in a polar organic solvent, in which a partial fatty acid polyol ester is incorporated in the polar organic solution.
Claim 8
Dependent Claim
16 words
Process according to claim 6, in which the polar solvent is a C 1-C 3 alkanol.
Claim 9
Dependent Claim
27 words
Process according to claim 6, in which, after the nickel boride has been prepared, a triglyceride oil is added and the polar solvent is removed by evaporation.
References Cited (Backward Citations)
US3392059A
Cited
DE2519580A1
Cited
US4339345A
Cited
US4327235A
Cited
EP0132889A1
Cited
US4551441A
Cited
EP0159101A1
Cited
US4600701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |