US3157708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making cyclododecatriene
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-04-01
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Granted: 1964-11-17
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Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Munley
- 👤 Herbert K Wiese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:47
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/26; B01J31/38; C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2/44; C07C2/46; C07C2/465; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/324; B01J2231/328; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0205; B01J2531/30; B01J2531/31; B01J2531/40; B01J2531/46; B01J27/00; B01J27/06; B01J27/08; B01J27/10; B01J31/122; C07C2527/00; C07C2527/06; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/38; C07C2601/00; C07C2601/18; C07C2601/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN IMPROVED CATALYST FOR THE TRIMERIZATION OF BUTADIENE TO CYCLODODECATRIENE PREPARED BY DISSOLVING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALET3 AND ALET2CL ALONG WITH TICL4 IN A HYDROCARBON SOLENT, ALLOWING THESE MATERIALS TO REACT TO REDUCE THE TICL4 TO TICL3 AND ADDING ALCL3 TO THE REACTION MIXTURE IN AN AMOUNT SUFFICIENT TO BRING THE MOLAR RATIO OF ETHYL TO ALUMINUM TO 0.9 TO 1.3:1.
Claim 2
Dependent Claim
66 words
AN IMPROVED CATALYST FOR THE TRIMERIZATION OF BUTADIENE TO CYCLODODECATRIENE PREPARED BY DISSOLVING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALET3 AND ALET2CL ALONG WITH TICL4 IN A HYDROCARBON SOLENT, ALLOWING THESE MATERIALS TO REACT TO REDUCE THE TICL4 TO TICL3 AND ADDING ALCL3 TO THE REACTION MIXTURE IN AN AMOUNT SUFFICIENT TO BRING THE MOLAR RATIO OF ETHYL TO ALUMINUM TO 0.9 TO 1.3:1.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |