US2879308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of ethinyl vinyl carbinols
Assignee: BASF SE
•
Filing: 1956-11-23
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Granted: 1959-03-24
•
Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Pasedach Heinrich
- 👤 Seefelder Matthias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:36
CPC Classifications
C; C07; C07C; C07C33/00; C07C33/04; C07C33/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS FOR THE PRODUCTION OF ETHINYL VINYL CARBINOLS WHICH COMPRISES REACTING AN ALPHA,BETA-OLEFINICALLY UNSATURATED CARBONYL COMPOUND WITH A DIENE, CONVERTING THE CARBONYL COMPOUND SATURATED IN ALPHA, BETA-POSITION THERBY FORMED, IN ALKALINE MEDIUM WITH AN ETHINYL COMPOUND FROM THE GROUP CONSISTING OF ACETYLENE, LITHIUM ACETYLIDE, SODIUM ACETYLIDE AND POTASSIUM ACETYLIDE INTO THE CORRESPONDING ACETYLENE ALCOHOL AND SPLITTING THIS UP BY THERMAL TREATMENT AT A TEMPERATURE OF ABOUT 300* TO ABOUT 600*C. INTO THE INITIAL DIENE AND THE ETHINYL VINYL CARBINOL.
Claim 2
Dependent Claim
80 words
A PROCESS FOR THE PRODUCTION OF ETHINYL VINYL CARBINOLS WHICH COMPRISES REACTING AN ALPHA,BETA-OLEFINICALLY UNSATURATED CARBONYL COMPOUND WITH A DIENE, CONVERTING THE CARBONYL COMPOUND SATURATED IN ALPHA, BETA-POSITION THERBY FORMED, IN ALKALINE MEDIUM WITH AN ETHINYL COMPOUND FROM THE GROUP CONSISTING OF ACETYLENE, LITHIUM ACETYLIDE, SODIUM ACETYLIDE AND POTASSIUM ACETYLIDE INTO THE CORRESPONDING ACETYLENE ALCOHOL AND SPLITTING THIS UP BY THERMAL TREATMENT AT A TEMPERATURE OF ABOUT 300* TO ABOUT 600*C. INTO THE INITIAL DIENE AND THE ETHINYL VINYL CARBINOL.
References Cited (Backward Citations)
US2761883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |