US4190610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic codimerization of norbornadiene with pentadiene
Assignee: Sunoco Inc R&M
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Filing: 1978-08-14
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Granted: 1980-02-26
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Expires: 1998-08-14
Abstract
Abstract Catalytic codimerization of norbornadiene and 1,3-pentadiene yields an olefinic codimer which, after hydrogenation, has utility as a high energy missile fuel or a diluent for a higher viscous missile fuel. Used is a three-component homogeneous catalytic system, consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphina ethane and an alkyl aluminum chloride.
Inventors
- 👤 Harry K. Myers, Jr.
- 👤 James E. Lyons
- 👤 Abraham Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:23
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/23; C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; C07C2531/24; C07C2603/00; C07C2603/56; C07C2603/86; Y; Y10; Y10S; Y10S149/00; Y10S149/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
Process for the catalytic and codimerization of norbornadiene with 1,3-pentadiene comprising: (a) contacting norbornadiene and 1,3-pentadiene in the presence of a catalytic amount of a three-component homogeneous catalytic system consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and an alkyl aluminum chloride selected from the group consisting of diethylaluminum chloride, ethyl aluminum dichloride and ethyl aluminum sesquichloride: (b) having the contacting occurring at a temperature within the range from between about 20° C. to about 100° C. and (c) continuing the contacting until the 1,3-pentadiene-norbornadiene codimer is prepared.
Claim 2
Dependent Claim
88 words
Process for the catalytic and codimerization of norbornadiene with 1,3-pentadiene comprising: (a) contacting norbornadiene and 1,3-pentadiene in the presence of a catalytic amount of a three-component homogeneous catalytic system consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and an alkyl aluminum chloride selected from the group consisting of diethylaluminum chloride, ethyl aluminum dichloride and ethyl aluminum sesquichloride: (b) having the contacting occurring at a temperature within the range from between about 20° C. to about 100° C. and (c) continuing the contacting until the 1,3-pentadiene-norbornadiene codimer is prepared.
Claim 3
Dependent Claim
25 words
Process according to claim 1 wherein the bisdiphenylphosphino ethane to the acetylacetonate mole ratio is in the range between from about 0.1 to about 5.
Claim 4
Dependent Claim
24 words
Process according to claim 1 wherein the norbornadiene to the 1,3-pentadiene mole ratio is in the range between from about 0.01 to about 10.
Claim 5
Dependent Claim
26 words
Process according to claim 1 wherein the alkyl aluminum chloride to the acetylacetonate mole ratio is in the range between from about 0.5 to about 100.
Claim 6
Dependent Claim
24 words
Process according to claim 1 wherein the norbornadiene to the acetylacetonate mole ratio is in the range between from about 10 to about 2000.
Claim 7
Dependent Claim
11 words
Process according to claim 5 wherein an inert solvent is present.
Claim 8
Dependent Claim
27 words
Process according to claim 6 wherein the inert solvent is selected from the group consisting of aromatic hydrocarbon, cycloparaffin, ether, halogenated aromatic, halogenated paraffin and halogenated cycloparaffin.
Claim 9
Dependent Claim
25 words
Process according to claim 7 wherein the bisdiphenylphosphino ethane to the acetylacetonate mole ratio is in the range between from about 0.1 to about 5.
Claim 10
Dependent Claim
24 words
Process according to claim 8 wherein the norbornadiene to the 1,3-pentadiene mole ratio is in the range between from about 0.01 to about 10.
Claim 11
Dependent Claim
26 words
Process according to claim 9 wherein the alkyl aluminum chloride to the acetylacetonate mole ratio is in the range between from about 0.5 to about 100.
References Cited (Backward Citations)
US2875256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |