US3636034A
Expired / Lapsed
US
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Surfactant production via rhodium-catalyzed oxo process
Assignee: Mitsubishi Chemical Corp
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Filing: 1965-09-27
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Granted: 1972-01-18
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Expires: 1985-09-27
Abstract
Abstract A SURFACE ACTIVE CONPOSITION COMPRISISNG SALTS OF HIGH MOLECULAR WEIGHT ALKYL SULFATE. THE SALTS ARE OBTAINED BY REACTING ONE OR MORE MONO-OLEFINS HAVING 10 TO 24 CARBON ATOMS WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF A RHODIUM CATALYST. THE RESULTANT PRODUCT IS HYDROGENATED TO FORM HIGH MOLECULAR WEIGHT ALCHOLS AND THESE ARE SULFATED FOLLOWED BY NEUTRALIZATION OF THE RESULTANT SULFATION PRODUCTS BY CERTAIN BASES.
Inventors
- 👤 Yoshio Ohsumi
- 👤 Yoshiki Matsnnaga
- 👤 Mitsuo Yamaguchi
- 👤 Hiroshi Ishida
- 👤 Takeshi Onoda
- 👤 Masaru Onishi
- 👤 Hiroshi Kasugai
- 👤 Tadao Namiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:03
CPC Classifications
C; C07; C07C; C07C305/00; C07C45/00; C07C45/49; C07C45/50; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146
Claims Analysis
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |