US3360573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing alkylated hydroxy aromatic compounds
Assignee: GAF Chemicals Corp
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Filing: 1964-08-10
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Granted: 1967-12-26
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 John M Walts
- 👤 Leslie M Schenck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/18; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A METHOD OF PREPARING AN ALKYLATED HYDROXY AROMATIC COMPOUND WHICH COMPRISES ADDING FROM 1 TO 10 MOLES OF A MONO-HALOGENATED ALKYL HYDROCARBON OF FROM 2 TO 30 CARBON ATOMS WHEREIN THE HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE DURING A TIME INTERVAL OF FROM ABOUT 1/2 TO 8 HOURS TO A REACTION MIXTURE MAINTAINED AT A TEMPERATURE RANGING FROM ABOUT 100*C. TO ABOUT 250*C. AND CONSISTING OF 1 TO 10 MOLES OF A HYDROXY AROMATIC COMPOUND CONTAINING FROM 1 TO 3 HYDROXY GROUPS DIRECTLY ATTACHED TO THE AROMATC NUCLEUS SAID NUCLEUS CONTAINING NO SUBSTITUENTS OTHER THAN HYDROXY AND ALKYL GROUPS AND FROM ABOUT 0.1 TO ABOUT 10% BY WEIGHT OF SAID HYDROXY AROMATIC COMPOUND OF RAW CLAY OF THE SILICA-ALUMINA TYPE, MAINTAINING THE SAID TEMPERATURE WITHIN THE SAID RANGE FOR A PERIOD OF TIME RANGING FROM 1 TO 24 HOURS, AND ISOLATING THE ALKYLATED HYDROXY AROMATIC COMPOUND FROM THE SAID REACTION MIXTURE.
Claim 2
Independent Claim
157 words
A METHOD OF PREPARING AN ALKYLATED HYDROXY AROMATIC COMPOUND WHICH COMPRISES ADDING FROM 1 TO 10 MOLES OF A MONO-HALOGENATED ALKYL HYDROCARBON OF FROM 2 TO 30 CARBON ATOMS WHEREIN THE HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE DURING A TIME INTERVAL OF FROM ABOUT 1/2 TO 8 HOURS TO A REACTION MIXTURE MAINTAINED AT A TEMPERATURE RANGING FROM ABOUT 100*C. TO ABOUT 250*C. AND CONSISTING OF 1 TO 10 MOLES OF A HYDROXY AROMATIC COMPOUND CONTAINING FROM 1 TO 3 HYDROXY GROUPS DIRECTLY ATTACHED TO THE AROMATC NUCLEUS SAID NUCLEUS CONTAINING NO SUBSTITUENTS OTHER THAN HYDROXY AND ALKYL GROUPS AND FROM ABOUT 0.1 TO ABOUT 10% BY WEIGHT OF SAID HYDROXY AROMATIC COMPOUND OF RAW CLAY OF THE SILICA-ALUMINA TYPE, MAINTAINING THE SAID TEMPERATURE WITHIN THE SAID RANGE FOR A PERIOD OF TIME RANGING FROM 1 TO 24 HOURS, AND ISOLATING THE ALKYLATED HYDROXY AROMATIC COMPOUND FROM THE SAID REACTION MIXTURE.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |