US4339345A
Expired / Lapsed
US
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Method for manufacture of nickel boride colloid
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1980-06-19
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Granted: 1982-07-13
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Expires: 2000-06-19
Abstract
Abstract Nickel boride colloid useful as a catalyst for the hydrogenation of carbonyl compound is obtained by causing a nickel salt to react upon an alkali metal borohydride in an alcohol substantially free from dissolved oxygen under a non-oxidative atmosphere in the presence of an alcohol-soluble polymer.
Inventors
- 👤 Yukimichi Nakao
- 👤 Shoei Fujishige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:47
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/143; C07C29/145; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; C01; C01B; C01B35/00; C01B35/02; C01B35/04; C07C29/14; C07C29/141; Y; Y10; Y10S; Y10S502/00; Y10S502/506; Y10S502/513
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
A method for the manufacture of nickel boride colloid, which method comprises causing a nickel salt to react upon one member selected from the group consisting of sodium borohydride and potassium borohydride in an alcohol substantially free from dissolved oxygen under a non-oxidative atmosphere in the presence of one member selected from the group consisting of poly(vinylpyrrolidone), poly(methyl vinyl ether), poly(2-hydroxyethyl acrylate, poly(tertbutyl methacrylate) and soluble nylon, and subsequently adding one member selected from the group consisting of soduim alcoholate, potassium alcoholate, sodium hydroxide, potassium hydroxide, tetrabutylammonium hydroxide and potassium carbonate to the resultant reaction mixture.
Claim 2
Independent Claim
96 words
A method for the manufacture of nickel boride colloid, which method comprises causing a nickel salt to react upon one member selected from the group consisting of sodium borohydride and potassium borohydride in an alcohol substantially free from dissolved oxygen under a non-oxidative atmosphere in the presence of one member selected from the group consisting of poly(vinylpyrrolidone), poly(methyl vinyl ether), poly(2-hydroxyethyl acrylate, poly(tertbutyl methacrylate) and soluble nylon, and subsequently adding one member selected from the group consisting of soduim alcoholate, potassium alcoholate, sodium hydroxide, potassium hydroxide, tetrabutylammonium hydroxide and potassium carbonate to the resultant reaction mixture.
Claim 3
Dependent Claim
22 words
The method according to claim 1, wherein the nickel salt is one member selected from the group consisting of sulfates and hydrochlorides.
Claim 4
Dependent Claim
23 words
The method according to claim 1, wherein the alcohol is one member selected from the group consisting of methanol, ethanol, 1-propanol and 2-propanol.
Claim 5
Independent Claim
71 words
A method for the manufacture of nickel boride colloid, which method comprises causing a nickel salt to react upon one member selected from the group consisting of sodium borohydride and potassium borohydride in an alcohol containing potassium carbonate and containing substantially no dissolved oxygen under a non-oxidative atmosphere in the presence of one member selected from the group consisting of poly(vinylpyrrolidone), poly(methyl vinyl ether), poly(2-hydroxyethyl acrylate, poly(tertbutyl methacrylate) and soluble nylon.
Claim 6
Independent Claim
71 words
A method for the manufacture of nickel boride colloid, which method comprises causing a nickel salt to react upon one member selected from the group consisting of sodium borohydride and potassium borohydride in an alcohol containing potassium carbonate and containing substantially no dissolved oxygen under a non-oxidative atmosphere in the presence of one member selected from the group consisting of poly(vinylpyrrolidone), poly(methyl vinyl ether), poly(2-hydroxyethyl acrylate, poly(tertbutyl methacrylate) and soluble nylon.
Claim 7
Dependent Claim
22 words
The method according to claim 4, wherein the nickel salt is one member selected from the group consisting of sulfates and hydrochlorides.
Claim 8
Dependent Claim
23 words
The method according to claim 4, wherein the alcohol is one member selected from the group consisting of methanol, ethanol, 1-propanol and 2-propanol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |