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Patent US3349138A successfully refreshed from Google Patents.
US3349138A
Expired / Lapsed
US
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Cyclocooligomerization process
Assignee: Universal Oil Products Co
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Filing: 1965-07-21
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Granted: 1967-10-24
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 John R Larson
- 👤 Robert P Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:54
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2531/00; C07C2531/16; C07C2531/22; C07C2601/00; C07C2601/18; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN THE CYCLOCOOLIGOMERIZATION OF ETHYLENE AND BUTADIENE, THE CONTINOUS STEPS OF (A) CHARGING ETHYLENE, BUTADIENE AND A MONOGENOUS NICKEL CATALYST TO A REACTION ZONE AT CYCLOCOOLIGOMERIZATION REACTION CONDITIONS AND FORMING A REACTION PRODUCT COMPRISING CYCLODECADIENE, CYCLODODECATRIENE AND N-DICATRIENE, (B) WITHDRAWING THE RESULTANT REACTION MIXTURE AND SEPARATING ETHYLENE AND BUTADIENE THEREFROM, (C) CHARGING THE RESIDUAL REACT ON MIXTURE TO A SEPARATION COLUMN AND FLASHING A PORTION OF THE REACTION PRODUCT THEREFROM AT A TEMPERATURE OF FROM ABOUT 100*F. TO 180*F. AND AT A PRESSURE OF FROM ABOUT 0.1MM. TO ABOUT 10MM. (D) RECOVERING THE CATALYST FROM SAID SEPARATION COLUMN IN SOLUTION WITH THE RESIDUAL REACTION PRODUCT AND RECYCLING THE SAME TO THE AFORESAID REACTION ZONE.
Claim 2
Dependent Claim
114 words
IN THE CYCLOCOOLIGOMERIZATION OF ETHYLENE AND BUTADIENE, THE CONTINOUS STEPS OF (A) CHARGING ETHYLENE, BUTADIENE AND A MONOGENOUS NICKEL CATALYST TO A REACTION ZONE AT CYCLOCOOLIGOMERIZATION REACTION CONDITIONS AND FORMING A REACTION PRODUCT COMPRISING CYCLODECADIENE, CYCLODODECATRIENE AND N-DICATRIENE, (B) WITHDRAWING THE RESULTANT REACTION MIXTURE AND SEPARATING ETHYLENE AND BUTADIENE THEREFROM, (C) CHARGING THE RESIDUAL REACT ON MIXTURE TO A SEPARATION COLUMN AND FLASHING A PORTION OF THE REACTION PRODUCT THEREFROM AT A TEMPERATURE OF FROM ABOUT 100*F. TO 180*F. AND AT A PRESSURE OF FROM ABOUT 0.1MM. TO ABOUT 10MM. (D) RECOVERING THE CATALYST FROM SAID SEPARATION COLUMN IN SOLUTION WITH THE RESIDUAL REACTION PRODUCT AND RECYCLING THE SAME TO THE AFORESAID REACTION ZONE.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |