US3849507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of aromatic hydrocarbons using a compacted montmorillonite clay catalyst
Assignee: Phillips Petroleum Co
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Filing: 1973-03-02
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Granted: 1974-11-19
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Expires: 1993-03-02
Abstract
Abstract 1. A PROCESS FOR THE ALKYLATION OF AN AROMATIC HYDROCARBON WHICH COMPRISES REACTING THE AROMATIC HYDROCARBON WITH AN ACYCLIC OLEFIN HAVING THE FORMULA (R)2-C=C(-R'')2 WHEREIN R IS HYDROGEN OR R'', AND R'' IS AN ALKYL RADICAL HAVING FROM ONE TO SIX CARBON ATOMS, IN THE LIQUID PHASE IN THE PRESENCE OF AN ALKYLATING CATALYST COMPRISING MONTMORILLONITE CLAY WHICH HAS BEEN COMPACTED INTO TABLETS, EACH TABLET HAVING A CRUSHING STRENGTH OF FROM 3 TO 15 POUNDS.
Inventors
- 👤 E Zuech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/24; B; B01; B01J; B01J21/00; B01J21/16; B01J37/00; B01J37/0009; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A PROCESS FOR THE ALKYLATION OF AN AROMATIC HYDROCARBON WHICH COMPRISES REACTING THE AROMATIC HYDROCARBON WITH AN ACYCLIC OLEFIN HAVING THE FORMULA
Claim 2
Dependent Claim
22 words
A PROCESS FOR THE ALKYLATION OF AN AROMATIC HYDROCARBON WHICH COMPRISES REACTING THE AROMATIC HYDROCARBON WITH AN ACYCLIC OLEFIN HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |