Patent US3136824A successfully refreshed from Google Patents.
US3136824A
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Synthesis of alkyl aromatics and catalyst therefor
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-11-17
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Granted: 1964-06-09
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Dimitrios V Favis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:47
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/26; B01J31/38; B01J31/02; B01J31/0231; B01J31/12; B01J31/122; B01J31/14; B01J31/143; C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; B01J2231/00; B01J2231/40; B01J2231/42; B01J2231/4205; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN A PROCESS FOR PREPARING MONOALKYLATED AROMATIC PRESENCE OF A CATALYST SYSTEM COMPRISING AN ALKYL METAL COMPOUND, A TRANSITION METAL HALIDE AND AN ALKYLHALOCYCLOPENTANE WHEREIN THE ALKYL GROUP CONTAINS 1 TO 10 CARBON ATOMS, THE IMPROVEMENT COMPRISING LPREHEATING SAID CATALYST SYSTEM AT A TEMPERATURE BETWEEN 100 TO 140*F. AND THEREAFTER REACTING SAID BENZENE WITH SAID ETHYLENE IN THE PRESENCE OF SAID PREHEATED CATALYST SYSTEM AT A TEMPERATURE BELOW SAID PREHEATING TEMPERTURE.
Claim 2
Dependent Claim
71 words
IN A PROCESS FOR PREPARING MONOALKYLATED AROMATIC PRESENCE OF A CATALYST SYSTEM COMPRISING AN ALKYL METAL COMPOUND, A TRANSITION METAL HALIDE AND AN ALKYLHALOCYCLOPENTANE WHEREIN THE ALKYL GROUP CONTAINS 1 TO 10 CARBON ATOMS, THE IMPROVEMENT COMPRISING LPREHEATING SAID CATALYST SYSTEM AT A TEMPERATURE BETWEEN 100 TO 140*F. AND THEREAFTER REACTING SAID BENZENE WITH SAID ETHYLENE IN THE PRESENCE OF SAID PREHEATED CATALYST SYSTEM AT A TEMPERATURE BELOW SAID PREHEATING TEMPERTURE.
References Cited (Backward Citations)
US2935542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |