US4062883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer-bound metallocarborane catalyst product and process
Assignee: United States Department of the Navy
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Filing: 1976-08-06
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Granted: 1977-12-13
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Expires: 1996-08-06
Abstract
Abstract A heterogeneous metallocarborane catalyst bound to a polymeric support by a carbon-boron bond. Chloromethylated polystyrene beads provide the support. The catalytic beads are characterized as 3,3-(Ph P)-3-H-4 polystyrylmethyl - 3,1,2-Rh C 2 B 9 H 10 .
Inventors
- 👤 M. Frederick Hawthorne
- 👤 William Kalb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:31
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/069; B01J31/16; B01J31/24; B01J31/2404; C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/22; C07C5/2206; C07C5/2266; C07C5/2293; C07F; C07F15/00; C07F15/0006; C07F15/0073; C07F15/008; C07F5/00; C07F5/02; C07F5/027; B01J2231/00; B01J2231/50; B01J2231/52; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J31/165; B01J31/1658; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/16; C07C2531/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
31 words
A heterogeneous catalyst for the hydrogenation and isomerization of olefins, said catalyst consisting of: the polymer-bound rhodacarborane 3-3-(Ph 3 P) 2 -3-H-4 polystyryl methyl-3,1,2-Rh C 2 B 9 H 10 .
Claim 2
Dependent Claim
31 words
A heterogeneous catalyst for the hydrogenation and isomerization of olefins, said catalyst consisting of: the polymer-bound rhodacarborane 3-3-(Ph 3 P) 2 -3-H-4 polystyryl methyl-3,1,2-Rh C 2 B 9 H 10 .
Claim 3
Independent Claim
67 words
A method of forming a polymer-bound heterogeneous rhodacarborane catalyst for the hydrogenation and isomerization of olefins comprising: reacting preformed polystyrene beads with C 2 B 9 H 11 - to obtain a bead-like product, and reacting said product with a rhodium compound to obtain said polymer-bound rhodacarborane as a final product, the general composition of said final product being a metallocarborane directly bound to said preformed bead.
Claim 4
Independent Claim
67 words
A method of forming a polymer-bound heterogeneous rhodacarborane catalyst for the hydrogenation and isomerization of olefins comprising: reacting preformed polystyrene beads with C 2 B 9 H 11 - to obtain a bead-like product, and reacting said product with a rhodium compound to obtain said polymer-bound rhodacarborane as a final product, the general composition of said final product being a metallocarborane directly bound to said preformed bead.
Claim 5
Dependent Claim
22 words
The method of claim 2 wherein said beads are chloromethylated polystyrene beads and said rhodium compound is Rh (Ph 3 P) Cl.
Claim 6
Dependent Claim
24 words
The method of claim 3 wherein said final product is 3-3-(Ph 3 P) 2 -3-H-4 polystyryl methyl-3,1,2-Rh C 2 B 9 H 10 .
References Cited (Backward Citations)
US3900557A
Cited
US3976596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |