US2865966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for alkylating phenol
Assignee: Monsanto Chemicals Ltd
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Filing: 1956-07-16
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Granted: 1958-12-23
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Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Boushra Y Abadir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:12
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE PROCESS OF MAKING A MONO-ALKYL PHENOL WHEREI IN THE ALKYL RADICAL IS BRANCHED AND CONTAINS 9 TO 24 CARBON ATOMS, WHICH COMPRISES REACTING ABOUT 1.0 TO ABOUT 1.25 MOLS OF PHENOL WITH ABOUT 1.0 MOL OF A AN ACYCLIC PROPYLENE POLYMER CONTAINING 9 TO 24 CARBON ATOMS IN THE PRESENCE OF A CATALYTIC CMOUNT OF THE MONOHYDRATE OF TOLUENE SULFONIC ACID.
Claim 2
Dependent Claim
62 words
THE PROCESS OF MAKING A MONO-ALKYL PHENOL WHEREI IN THE ALKYL RADICAL IS BRANCHED AND CONTAINS 9 TO 24 CARBON ATOMS, WHICH COMPRISES REACTING ABOUT 1.0 TO ABOUT 1.25 MOLS OF PHENOL WITH ABOUT 1.0 MOL OF A AN ACYCLIC PROPYLENE POLYMER CONTAINING 9 TO 24 CARBON ATOMS IN THE PRESENCE OF A CATALYTIC CMOUNT OF THE MONOHYDRATE OF TOLUENE SULFONIC ACID.
References Cited (Backward Citations)
US2655544A
Cited
US2537337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |