Patent US3081358A successfully refreshed from Google Patents.
US3081358A
Expired / Lapsed
US
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Disproportionation of chloroper-fluoropropenes
Assignee: Honeywell International Inc
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Filing: 1960-04-27
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Granted: 1963-03-12
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Agahigian Harry
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:49
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE PROCESS WHICH COMPRISES HEATING STARTING MATERIAL OF THE TERIAL OF THE GROUP CONSISTING OF CF2CICF:CF2 AND CF3CF:CFCI TO TEMPERATURES SUBSTANTIALLY IN THE RANGE OF 300-450* C., IN THE PRESENCE OF ANHYDROUS ALUMINUM FLUORIDE CATALYST AND FOR A TIME SUFFICIENT TO DISPROPORTIONATE A SUBSTANTIAL AMOUNT OF SAID STARTING MATERIAL, SAID CATALYST HAVING CRYSTALLITE SIZE NOT SUBSTANTIALLY GREATER THAN 500 ANGSTROM UNITS RADIUS AND HAVING BEEN DERIVED BY REACTION OF ALUMINUM CHLORIDE AND HF, AND RECOVERING, FROM THE RESULTING REACTION MIXTURE, MATERIAL OF THE GROUP CONSISTING OF CF3CF:CF2 AND CF3CF:CCI2.
Claim 2
Dependent Claim
89 words
THE PROCESS WHICH COMPRISES HEATING STARTING MATERIAL OF THE TERIAL OF THE GROUP CONSISTING OF CF2CICF:CF2 AND CF3CF:CFCI TO TEMPERATURES SUBSTANTIALLY IN THE RANGE OF 300-450* C., IN THE PRESENCE OF ANHYDROUS ALUMINUM FLUORIDE CATALYST AND FOR A TIME SUFFICIENT TO DISPROPORTIONATE A SUBSTANTIAL AMOUNT OF SAID STARTING MATERIAL, SAID CATALYST HAVING CRYSTALLITE SIZE NOT SUBSTANTIALLY GREATER THAN 500 ANGSTROM UNITS RADIUS AND HAVING BEEN DERIVED BY REACTION OF ALUMINUM CHLORIDE AND HF, AND RECOVERING, FROM THE RESULTING REACTION MIXTURE, MATERIAL OF THE GROUP CONSISTING OF CF3CF:CF2 AND CF3CF:CCI2.
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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |