US3020316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis (2-methoxyethyl) ether production
Assignee: Olin Corp
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Filing: 1957-02-28
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Granted: 1962-02-06
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Expires: 1977-02-28
Abstract
No abstract record available.
Inventors
- 👤 Robert M Thomas
- 👤 Guenter K Weisse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:39
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS FOR THE PRODUCTION OF BIS-(2-METHOXYETHYL) ETHER WHICH COMPRISES AS A FIRST STEP REACTING METHANOL, SODIUM HYDROXIDE AND BIS(2-CHLOROETHYL) ETHER AT FROM 20*C. TO 80. UNTIL SUBSTANTIALLY ALL OF THE BIS(2-CHLOROETHYL) ETHER HAS BEEN CONVERTED TO THE INTERMEDIATE 2-CHLOROETHYL-2-METHOXYETHYL ETHER AS MEASURED BY THE PRODUCTION OF FROM 45 TO 80 PERCENT BY WEIGHT OF THE THEORETICAL AMOUNT OF SODIUM CHLORIDE AND AS A SECOND STEP RAISING THE REACTION MIXTURE TO A TEMPERATURE OF FROM 45*C. TO 150*C AND CONTINUING THE REACTION TO SUBSTANTIAL COMPLETION, WITH THE PROVISO THAT THE TEMPERATURE IN THE SECOND STEP IS AT LEAST 25*C. HIGHER THAN THE TEMPERATURE IN THE FIRST STEP.
Claim 2
Dependent Claim
107 words
A PROCESS FOR THE PRODUCTION OF BIS-(2-METHOXYETHYL) ETHER WHICH COMPRISES AS A FIRST STEP REACTING METHANOL, SODIUM HYDROXIDE AND BIS(2-CHLOROETHYL) ETHER AT FROM 20*C. TO 80. UNTIL SUBSTANTIALLY ALL OF THE BIS(2-CHLOROETHYL) ETHER HAS BEEN CONVERTED TO THE INTERMEDIATE 2-CHLOROETHYL-2-METHOXYETHYL ETHER AS MEASURED BY THE PRODUCTION OF FROM 45 TO 80 PERCENT BY WEIGHT OF THE THEORETICAL AMOUNT OF SODIUM CHLORIDE AND AS A SECOND STEP RAISING THE REACTION MIXTURE TO A TEMPERATURE OF FROM 45*C. TO 150*C AND CONTINUING THE REACTION TO SUBSTANTIAL COMPLETION, WITH THE PROVISO THAT THE TEMPERATURE IN THE SECOND STEP IS AT LEAST 25*C. HIGHER THAN THE TEMPERATURE IN THE FIRST STEP.
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |