US3009967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination of acetylenes
Assignee: Dow Chemical Co
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Filing: 1958-10-02
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Granted: 1961-11-21
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Expires: 1978-10-02
Abstract
No abstract record available.
Inventors
- 👤 Roger F Monroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:29
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/02; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS WHICH COMPRISES SEPARATELY PREHATING TO ABOUT 100*C. AND THEN REACTING BY CONTACTING IN THE ABSENCE OF A CATALYST AN ALKYLACETYLENE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKYL PORTION, WHICH CAN CONTAIN UP TO 30 PERCENT BY WEIGHT OF THE ACETYLENE IN THE FORM OF ITS ALLENIC TAUTOMER AND CHLORINE IN A REACTION ZONE MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 250* AND ABOUT 500*C. WHEREIN THE RATIO OF REACTANTS IS SUCH THAT THE ACETYLENE COMPOUND IS IN MOLAR EXCESS OF THE CHLORINE AND WITHDRAWING FROM SAID REACTION ZONE AT LEAST ONE OF THE PRODUCTS 2,3-DICHLORO-1-ALKENE AND 3CHLORO-1-ALKYNE.
Claim 2
Dependent Claim
101 words
A PROCESS WHICH COMPRISES SEPARATELY PREHATING TO ABOUT 100*C. AND THEN REACTING BY CONTACTING IN THE ABSENCE OF A CATALYST AN ALKYLACETYLENE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKYL PORTION, WHICH CAN CONTAIN UP TO 30 PERCENT BY WEIGHT OF THE ACETYLENE IN THE FORM OF ITS ALLENIC TAUTOMER AND CHLORINE IN A REACTION ZONE MAINTAINED AT A TEMPERATURE BETWEEN ABOUT 250* AND ABOUT 500*C. WHEREIN THE RATIO OF REACTANTS IS SUCH THAT THE ACETYLENE COMPOUND IS IN MOLAR EXCESS OF THE CHLORINE AND WITHDRAWING FROM SAID REACTION ZONE AT LEAST ONE OF THE PRODUCTS 2,3-DICHLORO-1-ALKENE AND 3CHLORO-1-ALKYNE.
References Cited (Backward Citations)
US2016572A
Cited
US2643272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |