Patent US3251892A successfully refreshed from Google Patents.
US3251892A
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Partial hydrogenation of cycloaliphatic compounds containing at least two olefinic double bonds
Assignee: BASF SE
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Filing: 1962-05-18
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Granted: 1966-05-17
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Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Seefelder Matthias
- 👤 Raskob Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:16
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; B01J23/48; B01J23/50; B01J23/54; B01J23/56; B01J23/60; B01J23/62; B01J23/622; B01J23/628; B01J23/64; B01J23/644; B01J23/6445; B01J23/70; B01J23/89; C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS FOR THE SELECTIVE HYDROGENATION OF CYCLOALIPHATIC COMPOUNDS CONTAINING AT LEAST TWO OLEFINIC DOUBLE BONDS TO PRODUCE COMPOUNDS CONTAINING ONE OLEFINIC DOUBLE BOND WHICH COMPRISES: CONTACTING SAID CYCLOALIPHATIC COMPOUNDS WITH MOLECULAR HYDROGEN IN THE PRESENCE OF METALLIC PALLADIUM AND A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF SALTS, HYDROXIDES AND OXIDES OF A SECOND HEAVY METAL, SAID SECOND HEAVY METAL BEING SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER, ZINC, CADMINUM, MERCURY, THALLIUM, LEAD, TIN, ANTIMONY, BISMUTH, VANADIUM, ZIRCONIUM AND IRON.
Claim 2
Dependent Claim
82 words
A PROCESS FOR THE SELECTIVE HYDROGENATION OF CYCLOALIPHATIC COMPOUNDS CONTAINING AT LEAST TWO OLEFINIC DOUBLE BONDS TO PRODUCE COMPOUNDS CONTAINING ONE OLEFINIC DOUBLE BOND WHICH COMPRISES: CONTACTING SAID CYCLOALIPHATIC COMPOUNDS WITH MOLECULAR HYDROGEN IN THE PRESENCE OF METALLIC PALLADIUM AND A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF SALTS, HYDROXIDES AND OXIDES OF A SECOND HEAVY METAL, SAID SECOND HEAVY METAL BEING SELECTED FROM THE GROUP CONSISTING OF COPPER, SILVER, ZINC, CADMINUM, MERCURY, THALLIUM, LEAD, TIN, ANTIMONY, BISMUTH, VANADIUM, ZIRCONIUM AND IRON.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |