US2545285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of perchloromethyl mercaptan and its separation from thevarious sulfur compounds
Assignee: Tennessee Products & Chemical
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Filing: 1949-12-05
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Granted: 1951-03-13
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Expires: 1969-12-05
Abstract
No abstract record available.
Inventors
- 👤 Mortimer J Kamlet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
C; C07; C07C; C07C313/00; C07C313/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR THE MANUFACTURE OF PERCHLOROMETHYL MERCAPTAN WHICH COMPRISES CHLORINATING CARBON DISULFIDE IN THE ABSENCE OF ACTINIC RADIATION UNTIL THE VOLUME OF THE CHLORINATED PRODUCT IS FROM 2.00 TO 2.5 TIMES THE VOLUME OF THE ORIGINAL CARBON DISULFIDE, THEREAFTER DECOMPOSING THE BYPRODUCT SULFUR MONOCHLORIDE AND SULFUR DICHLORIDE BY REACTION WITH A MEMBER OF THE GROUP CONSISTING OF THE LOWER ALIPHATIC ALCOHOL, THE LOWER ALIPHATIC ETHERS AND MIXTURES THEREOF, AND SEPARATING THE SUBSTANTIALLY UNREACTED PERCHLOROMETHYL MERCAPTAN FROM THE MORE VOLATILE BY-PRODUCTS FORMED BY SAID DECOMPOSITION.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE MANUFACTURE OF PERCHLOROMETHYL MERCAPTAN WHICH COMPRISES CHLORINATING CARBON DISULFIDE IN THE ABSENCE OF ACTINIC RADIATION UNTIL THE VOLUME OF THE CHLORINATED PRODUCT IS FROM 2.00 TO 2.5 TIMES THE VOLUME OF THE ORIGINAL CARBON DISULFIDE, THEREAFTER DECOMPOSING THE BYPRODUCT SULFUR MONOCHLORIDE AND SULFUR DICHLORIDE BY REACTION WITH A MEMBER OF THE GROUP CONSISTING OF THE LOWER ALIPHATIC ALCOHOL, THE LOWER ALIPHATIC ETHERS AND MIXTURES THEREOF, AND SEPARATING THE SUBSTANTIALLY UNREACTED PERCHLOROMETHYL MERCAPTAN FROM THE MORE VOLATILE BY-PRODUCTS FORMED BY SAID DECOMPOSITION.
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) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |