Patent US2660610A successfully refreshed from Google Patents.
US2660610A
Expired / Lapsed
US
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Catalytic alkylbenzene synthesis
Assignee: Honeywell International Inc
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Filing: 1951-02-24
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Granted: 1953-11-24
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Expires: 1971-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Michael Erchak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:28
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/72; C07C2531/00; C07C2531/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
PROCESS FOR PRODUCING ALKYLBENZENE COMPOUNDS WHICH COMPRISES REACTING, IN THE PRESENCE OF PEROXY CATALYST, HAVING NO ELEMENTS OTHER THAN CARBON, HYDROGEN AND OXYGEN IN THE MOLECULE AND WHICH IS SUBSTANTIALLY STABLE BELOW ABOUT 100* C., AND AT TEMPERATURES BETWEEN ABOUT 200* C. AND ABOUT 350* C., AND AT PRESSURES BETWEEN ABOUT 500 AND ABOUT 5000 P. S. I., ETHYLENE AND ALKYLBENZENE COMPOUND IN WHICH THE BENZENE RING CONTAINS IN ALL NOT MORE THAN 2 SUBSTITUENT GROUPS AND SUBSTITUENT ALKYL GROUPS CONTAIN NOT MORE THAN 10 CARBON ATOMS EACH, SAID ALKYLBENZENE COMPOUND HAVING AT LEAT ONE HYDROGEN ATOM ATTACHED TO A SATURATED CARBON ATOM ALPHA TO THE BENZENE RING; AND ESTABLISHING MOL RATIOS OF ALKYLBENZENE REACTANT:ETHYLENE AT LEAST ABOUT 05:1.
Claim 2
Dependent Claim
119 words
PROCESS FOR PRODUCING ALKYLBENZENE COMPOUNDS WHICH COMPRISES REACTING, IN THE PRESENCE OF PEROXY CATALYST, HAVING NO ELEMENTS OTHER THAN CARBON, HYDROGEN AND OXYGEN IN THE MOLECULE AND WHICH IS SUBSTANTIALLY STABLE BELOW ABOUT 100* C., AND AT TEMPERATURES BETWEEN ABOUT 200* C. AND ABOUT 350* C., AND AT PRESSURES BETWEEN ABOUT 500 AND ABOUT 5000 P. S. I., ETHYLENE AND ALKYLBENZENE COMPOUND IN WHICH THE BENZENE RING CONTAINS IN ALL NOT MORE THAN 2 SUBSTITUENT GROUPS AND SUBSTITUENT ALKYL GROUPS CONTAIN NOT MORE THAN 10 CARBON ATOMS EACH, SAID ALKYLBENZENE COMPOUND HAVING AT LEAT ONE HYDROGEN ATOM ATTACHED TO A SATURATED CARBON ATOM ALPHA TO THE BENZENE RING; AND ESTABLISHING MOL RATIOS OF ALKYLBENZENE REACTANT:ETHYLENE AT LEAST ABOUT 05:1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |