US3283014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetylenic alcohols from ketones and acetylene using aqueous alkaline hy- droxide catalyst
Assignee: —
•
Filing: —
•
Granted: 1966-11-01
•
Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:09
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/04; C07C29/00; C07C29/36; C07C29/38; C07C29/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A PROCESS FOR THE PREPARATION OF ACETYLENIC ALCOHOLS COMPRISING REACTING ACETYLENE WITH A KETONE IN LIQUID AMMONIA, THE KETONE BEING OF THE GENERAL FORMULA R-CO-R'', WHEREIN R AND R'' ARE SELECTED FROM THE GROUP CONSISTING OF ARYL GROUPS AND OF ALKYL GROUPS HAVING 1 TO 4 CARBON ATOMS, AND IN THE PRESENCE OF AN ALKALINE HYDROXIDE IN AQUEOUS SOLUTION AS CATALYST, THE OPERATION BEING AFFECTED IN THE PRESENCE OF WATER IN A QUANTITY THAT INITIALLY IS NOT LESS THAN 0.025% AND THAT IN THE COURSE OF THE REACTION DOES NOT TOTAL MORE THAN 10% BY WEIGHT WITH RESPECT TO THE SOLVENT USED, INCLUDING THE WATER FORMED IN THE REACTION, AND AT TEMPERATURES OF FROM -40*C. TO +40*C., THE ACETYLENE BEING IN MOLAR EXCESS WITH RESPECT TO THE KETONE, THE MOLAR RATIO OF THE ACETYLENE TO THE KETONE BEING IN THE RANGE 1.5:1 TO 10:1.
Claim 2
Dependent Claim
144 words
A PROCESS FOR THE PREPARATION OF ACETYLENIC ALCOHOLS COMPRISING REACTING ACETYLENE WITH A KETONE IN LIQUID AMMONIA, THE KETONE BEING OF THE GENERAL FORMULA R-CO-R'', WHEREIN R AND R'' ARE SELECTED FROM THE GROUP CONSISTING OF ARYL GROUPS AND OF ALKYL GROUPS HAVING 1 TO 4 CARBON ATOMS, AND IN THE PRESENCE OF AN ALKALINE HYDROXIDE IN AQUEOUS SOLUTION AS CATALYST, THE OPERATION BEING AFFECTED IN THE PRESENCE OF WATER IN A QUANTITY THAT INITIALLY IS NOT LESS THAN 0.025% AND THAT IN THE COURSE OF THE REACTION DOES NOT TOTAL MORE THAN 10% BY WEIGHT WITH RESPECT TO THE SOLVENT USED, INCLUDING THE WATER FORMED IN THE REACTION, AND AT TEMPERATURES OF FROM -40*C. TO +40*C., THE ACETYLENE BEING IN MOLAR EXCESS WITH RESPECT TO THE KETONE, THE MOLAR RATIO OF THE ACETYLENE TO THE KETONE BEING IN THE RANGE 1.5:1 TO 10:1.
References Cited (Backward Citations)
US3082260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |