Patent US3086060A successfully refreshed from Google Patents.
US3086060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing monochloromethyl methyl ether
Assignee: Pfaudler Permutit Inc
•
Filing: 1960-04-13
•
Granted: 1963-04-16
•
Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Albert H Greer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:41
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR PRODUCING MONOCHLOROMETHYL METHYL ETHER WHICH COMPRISES REACTING METHANOL, FORMALDEHYDE AND CHLOROSULFONIC ACID IN THE PRESENCE OF WATER, WHEREIN THE MOLAR RATIOS OF FORMALDEHYDE TO METHANOL TO CHLOROSULFONIC ACID ARE ABOUT 1.0:(0.9 TO 1.3):(0.7 TO 3), RESPECTIVELY, AND THE WATER PRESENT IN THE REACTION MIXTURE IS IN A MOLAR RATIO OF BETWEEN ABOUT 0.2 AND 5:1 WATER TO CHLOROSULFONIC ACID, AND THEREAFTER RECOVERING THE LAYER OF MONOCHLOROMETHYL METHYL ETHER WHICH FORMS AND SEPARATING IT FROM THE AQUEOUS LAYER BY DECANTATION.
Claim 2
Dependent Claim
82 words
A PROCESS FOR PRODUCING MONOCHLOROMETHYL METHYL ETHER WHICH COMPRISES REACTING METHANOL, FORMALDEHYDE AND CHLOROSULFONIC ACID IN THE PRESENCE OF WATER, WHEREIN THE MOLAR RATIOS OF FORMALDEHYDE TO METHANOL TO CHLOROSULFONIC ACID ARE ABOUT 1.0:(0.9 TO 1.3):(0.7 TO 3), RESPECTIVELY, AND THE WATER PRESENT IN THE REACTION MIXTURE IS IN A MOLAR RATIO OF BETWEEN ABOUT 0.2 AND 5:1 WATER TO CHLOROSULFONIC ACID, AND THEREAFTER RECOVERING THE LAYER OF MONOCHLOROMETHYL METHYL ETHER WHICH FORMS AND SEPARATING IT FROM THE AQUEOUS LAYER BY DECANTATION.
References Cited (Backward Citations)
US2652432A
Cited
US2704299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |