US2929852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of olefin dichlorides
Assignee: Union Carbide Corp
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Filing: 1954-10-20
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Granted: 1960-03-22
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Donald B Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:36
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/013; C07C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PROCESS FOR PRODUCING AN OLEFIN DICHLORIDE BY REACTION OF AN OLEFIN AND CHLORINE WHICH COMPRISES INTRODUCING AN OLEFIN AND CHLORINE INTO REACTION ZONE CONTAINING A BODY OF BOILING LIQUID CONSISTING PRIMARILY OF OLEFIN DICHLORIDE, MAINTAINING THE BODY OF LIQUID BOILING BY MEANS OF THE HEAT OF REACTION LIBERATED BY THE REACTION OF CHLORINE WITH OLEFIN THEREBY VAPORIZING OLEFIN DICHLORIDE FROM THE LIQUID BODY, AND WHILE FORMING OLEFIN CICHLORIDE IN THE LIQUID BODY WITHDRAWING OLEFIN DICHLORIDE VAPORS AND OTHER CHOLORINATED PRODUCTS THEREFROM, RECTIFYING SAID OLEFIN DICHLORIDE VAPORS IN A RECTIFICATION ZONE ABOVE THE REACTION ZONE WHICH IS LOCATED ABOVE THE LIQUID BODY, SEPERATING OLEFIN DICHLORIDE FROM SAID OTHER CHLORINATED PRODUCTS BY RECTIFICATION, REMOVING REFINED OLEFIN DICHLORIDE IN THE LIQUID PHASE FROM SAID RECTIFICATION ZONE AT A POINT BELOW THE TOP OF SAID RECTIFICATION ZONE AND REMOVING OLEFIN DICHLORIDE VAPORS CONTAINING IMPURITIES FROM ABOVE SAID RECTIFICATION ZONE.
Claim 2
Dependent Claim
146 words
A PROCESS FOR PRODUCING AN OLEFIN DICHLORIDE BY REACTION OF AN OLEFIN AND CHLORINE WHICH COMPRISES INTRODUCING AN OLEFIN AND CHLORINE INTO REACTION ZONE CONTAINING A BODY OF BOILING LIQUID CONSISTING PRIMARILY OF OLEFIN DICHLORIDE, MAINTAINING THE BODY OF LIQUID BOILING BY MEANS OF THE HEAT OF REACTION LIBERATED BY THE REACTION OF CHLORINE WITH OLEFIN THEREBY VAPORIZING OLEFIN DICHLORIDE FROM THE LIQUID BODY, AND WHILE FORMING OLEFIN CICHLORIDE IN THE LIQUID BODY WITHDRAWING OLEFIN DICHLORIDE VAPORS AND OTHER CHOLORINATED PRODUCTS THEREFROM, RECTIFYING SAID OLEFIN DICHLORIDE VAPORS IN A RECTIFICATION ZONE ABOVE THE REACTION ZONE WHICH IS LOCATED ABOVE THE LIQUID BODY, SEPERATING OLEFIN DICHLORIDE FROM SAID OTHER CHLORINATED PRODUCTS BY RECTIFICATION, REMOVING REFINED OLEFIN DICHLORIDE IN THE LIQUID PHASE FROM SAID RECTIFICATION ZONE AT A POINT BELOW THE TOP OF SAID RECTIFICATION ZONE AND REMOVING OLEFIN DICHLORIDE VAPORS CONTAINING IMPURITIES FROM ABOVE SAID RECTIFICATION ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |