Patent US3231633A successfully refreshed from Google Patents.
US3231633A
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Alkylation promoter
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-11-27
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Granted: 1966-01-25
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Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 George M Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:35
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PROCESS FOR CARRYING OUT AN ALKYLATION REACTION WHILE MINIMIZING CRACKING AND THE INDUCTION PERIOD WHICH COMPRISES CONTACTING A HYDROCARBON MIXTURE CONTAINING AN ALKYLATABLE HYDROCARBON AND AN ALKYLATING AGENT AT ALKYLATION CONDITIONS WITH A CATALYST COMPOSITION COMPRISING A STRONG ACID SELECTED FROM THE GROUP CONSITING OF SULFURIC ACID, HYDROFLUORIC ACID AND FLUOROSULFONIC ACID AND A CATALYST PROMOTER SELECTED FROM THE GROUP CONSISTING OF AN IONIZABLE TRIPHENYLMETHYL SALT AND AN IONIZABLE TRICYCLOPROPYLMETHYL SALT.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |