Patent US3304343A successfully refreshed from Google Patents.
US3304343A
Expired / Lapsed
US
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Process for transferring double bond of olefin
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1964-04-27
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Granted: 1967-02-14
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Mitsutani Akio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:53
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2537
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF TRANSFERRING A DOUBLE BOND OF AN ALIPHATIC MONOOLEFIN HAVING FROM 4 TO 10 CARBON ATOMS FROM ONE POSITION TO ANOTHER POSITION IN THE MOLECULAR CHAIN WHICH COMPRISES CONTACTING THE ALIPHATIC MONOOLEFIN WITH A CATALYST FREE OF WATER-SOLUBLE COMPONENTS PREPARED BY (1) CALCINING A SOLID PHOSPHORIC ACID CATALYST CONSISTING OF PHOSPHORIC ACID DEPOSITED ON A CARRIER CONSISTING ESSENTIALLY OF SILICA, THE CALCINATION BEING CARRIED OUT AT A TEMPERATURE IN THE RANGE OF ABOUT 500*C. TO 1100*C., AND (2) WASHING THE CALCINDED CATALYST WITH WATER TO REMOVE WATER-SOLUBLE COMPONENTS FROM SAID CALCINED CATALYST.
Claim 2
Independent Claim
94 words
A METHOD OF TRANSFERRING A DOUBLE BOND OF AN ALIPHATIC MONOOLEFIN HAVING FROM 4 TO 10 CARBON ATOMS FROM ONE POSITION TO ANOTHER POSITION IN THE MOLECULAR CHAIN WHICH COMPRISES CONTACTING THE ALIPHATIC MONOOLEFIN WITH A CATALYST FREE OF WATER-SOLUBLE COMPONENTS PREPARED BY (1) CALCINING A SOLID PHOSPHORIC ACID CATALYST CONSISTING OF PHOSPHORIC ACID DEPOSITED ON A CARRIER CONSISTING ESSENTIALLY OF SILICA, THE CALCINATION BEING CARRIED OUT AT A TEMPERATURE IN THE RANGE OF ABOUT 500*C. TO 1100*C., AND (2) WASHING THE CALCINDED CATALYST WITH WATER TO REMOVE WATER-SOLUBLE COMPONENTS FROM SAID CALCINED CATALYST.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |