US2977374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing oxirane
Assignee: —
•
Filing: —
•
Granted: 1961-03-28
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Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:20
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/14; C07C; C07C407/00; C07C409/00; C07C69/00; C07C69/52; C07C69/533; C07C69/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS WHICH COMPRISES CONTINUOUSLY INTRODUCING AN ETHYLENICALLY UNSATURATED COMPOUND AND PERACETIC ACID INTO AN ELONGATED REACTION ZONE; SAID ETHYLENICALLY UNSATURATED COMPOUND CONTAINING AT LEAST 3 CARBON ATOMS AND AT LEAST ONE ETHYLENIC DOUBLE BOND IN WHICH THE ATOMS DIRECTLY JOINED TO THE ETHYLENIC CARBON ATOMS ARE OF THE GROUP CONSISTING OF HYDROGEN AND CARBON; SAID ELONGATED REACTION ZONE HAVING A LENGTH IN THE RANGE OF FROM 100 $4K/$ TO 10,000 $4K/$, WHEREIN K IS THE MINIMUM AREA OBTAINABLE OBTAINABLE FROM A PERPENDICULAR CROSS SECTIONAL VIEW OF SAID ZONE, AND WHEREIN THE EXPRESSION $4K/$ IS IN THE RANGE OF FROM 0.25 TO 5.0 INCHES; UNDER PRESSURE SUFFICIENT TO MAINTAIN A LIQUID PHASE REACTION MIXTURE; AND FOR A RESIDENCE TIME AT LEAST SUFFICIENT TO INTRODUCE OXTRANE OXYGEN AT THE SITE OF A CARBON TO CARBON ETHYLENIC BOND OF SAID ETHYLENICALLY UNSATURATED COMPOUND, SAID RESIDENCE TIME ARE EXCEEDING ABOUT 45 MINUTES.
Claim 2
Dependent Claim
149 words
A PROCESS WHICH COMPRISES CONTINUOUSLY INTRODUCING AN ETHYLENICALLY UNSATURATED COMPOUND AND PERACETIC ACID INTO AN ELONGATED REACTION ZONE; SAID ETHYLENICALLY UNSATURATED COMPOUND CONTAINING AT LEAST 3 CARBON ATOMS AND AT LEAST ONE ETHYLENIC DOUBLE BOND IN WHICH THE ATOMS DIRECTLY JOINED TO THE ETHYLENIC CARBON ATOMS ARE OF THE GROUP CONSISTING OF HYDROGEN AND CARBON; SAID ELONGATED REACTION ZONE HAVING A LENGTH IN THE RANGE OF FROM 100 $4K/$ TO 10,000 $4K/$, WHEREIN K IS THE MINIMUM AREA OBTAINABLE OBTAINABLE FROM A PERPENDICULAR CROSS SECTIONAL VIEW OF SAID ZONE, AND WHEREIN THE EXPRESSION $4K/$ IS IN THE RANGE OF FROM 0.25 TO 5.0 INCHES; UNDER PRESSURE SUFFICIENT TO MAINTAIN A LIQUID PHASE REACTION MIXTURE; AND FOR A RESIDENCE TIME AT LEAST SUFFICIENT TO INTRODUCE OXTRANE OXYGEN AT THE SITE OF A CARBON TO CARBON ETHYLENIC BOND OF SAID ETHYLENICALLY UNSATURATED COMPOUND, SAID RESIDENCE TIME ARE EXCEEDING ABOUT 45 MINUTES.
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) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |