Patent US3268607A successfully refreshed from Google Patents.
US3268607A
Expired / Lapsed
US
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Preparation of alkylated aromatic compounds
Assignee: Honeywell International Inc
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Filing: 1963-12-09
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Granted: 1966-08-23
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 George J Schmitt
- 👤 Jr Daniel E-Nee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; C; C07; C07C; C07C6/00; C07C6/08; C07C6/12; C07C6/126; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08K; C08K5/00; C08K5/16; C08K5/32; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR PRODUCTING OF 1,3,5-TRIISOPROPYLBENZENE, WHICH COMPRISES CONTACTING 1,2,4,5-TETRAISOPROPYLBENZENE AS ONE REACTION, WITH, AS CO-REACTANT, AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF BENZENE, CUMENE, AND DIISOPROPYLBENZENES AT A TEMPERATURE OF ABOUT 110-170* C. IN THE PRESENCE OF AN ACID ACTIVATED CLAY CATALYST WHEREBYTO FROM 1,3,5-TRIISOPROPYLBENZENE BY TRANSPROPYLATION AND MAINTAINING SAID CONTACT UNDER CONDITIONS UNTIL AT LEAST SOME OF SAID TETRAISOPROPYLBENZENE AND AT LEAST SOME OF SAID CO-REACTANT HAVE BEEN CONVERTED INTO 1,3,5-TRIISOPROPYLBENZENE.
Claim 2
Dependent Claim
76 words
A PROCESS FOR PRODUCTING OF 1,3,5-TRIISOPROPYLBENZENE, WHICH COMPRISES CONTACTING 1,2,4,5-TETRAISOPROPYLBENZENE AS ONE REACTION, WITH, AS CO-REACTANT, AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF BENZENE, CUMENE, AND DIISOPROPYLBENZENES AT A TEMPERATURE OF ABOUT 110-170* C. IN THE PRESENCE OF AN ACID ACTIVATED CLAY CATALYST WHEREBYTO FROM 1,3,5-TRIISOPROPYLBENZENE BY TRANSPROPYLATION AND MAINTAINING SAID CONTACT UNDER CONDITIONS UNTIL AT LEAST SOME OF SAID TETRAISOPROPYLBENZENE AND AT LEAST SOME OF SAID CO-REACTANT HAVE BEEN CONVERTED INTO 1,3,5-TRIISOPROPYLBENZENE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |