US2846480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloromethylation
Assignee: ConocoPhillips Co
•
Filing: 1954-05-17
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Granted: 1958-08-05
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Gifford G Mcclaflin
- 👤 Edsel L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:35
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR CHLOROMETHYLATING ALKYLBENZENES WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM -10 TO 100*C., 1 MOLE OF AN ALKYLBENZENE WITH 1 TO 21/2 MOLES OF SULFURIC ACID AND A RE-AGENT PREPARED BY REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM -20 TO 60*C., (A) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND COMPOUNDS WHICH ENGENDER FORMALDEHYDE WHEREIN THE AMOUNT OF SAID COMPOUND IS EQUIVALENT TO 1 TO 2 MOLES OF FORMALDEHYDE, (B) 1 TO 2 MOLES OF A PRIMARY MONATOMIC SATURATED ALIPHATIC ALCOHOL CONTAINING FROM 1 TO CARBON ATOMS, (C) 0.33 TO 1 MOLE OF A CHLORINE-CONTAINING COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS PENTACHLORIDE, SULFURIC OXYCHLORIDE, SULFUROUS OXYCHLORIDE, AND ACYL CHLORIDES.
Claim 2
Dependent Claim
123 words
A PROCESS FOR CHLOROMETHYLATING ALKYLBENZENES WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM -10 TO 100*C., 1 MOLE OF AN ALKYLBENZENE WITH 1 TO 21/2 MOLES OF SULFURIC ACID AND A RE-AGENT PREPARED BY REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM -20 TO 60*C., (A) A COMPOUND SELECTED FROM THE CLASS CONSISTING OF FORMALDEHYDE AND COMPOUNDS WHICH ENGENDER FORMALDEHYDE WHEREIN THE AMOUNT OF SAID COMPOUND IS EQUIVALENT TO 1 TO 2 MOLES OF FORMALDEHYDE, (B) 1 TO 2 MOLES OF A PRIMARY MONATOMIC SATURATED ALIPHATIC ALCOHOL CONTAINING FROM 1 TO CARBON ATOMS, (C) 0.33 TO 1 MOLE OF A CHLORINE-CONTAINING COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS TRICHLORIDE, PHOSPHORUS PENTACHLORIDE, SULFURIC OXYCHLORIDE, SULFUROUS OXYCHLORIDE, AND ACYL CHLORIDES.
References Cited (Backward Citations)
US2630459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |