Patent US2806040A successfully refreshed from Google Patents.
US2806040A
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Production of acrylic acid or its derivatives using a nickel halide catalyst in the presence of an activator containing sulfur or selenium
Assignee: BASF SE
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Filing: 1955-10-25
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Granted: 1957-09-10
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Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Reppe Walter
- 👤 Friederich Herbert
- 👤 Henkel Erich
- 👤 Lautenschlager Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:43
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A METHOD OF MANUFACTURING ACRYLIC ACID AND ITS FUNCTIONAL DERIVATIVES BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND A COMPOUND WITH A REACTIVE HYDROGEN ATOM WHILE USING A NICKEL HALIDE AS A CATALYST THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SAID REACTION IN THE PRESENCE OF A COMPOUND CONTAINING ON THE SAME CARBON ATOM A NITROGEN ATOM AND AN ATOM OF AN ELEMENT OF THE 6TH GROUP OF THE PERIODIC ARRANGEMENT OF THE ELEMENTS HAVING AN ATOMIC NUMBER BETWEEN 16 AND 34, AT LEAST ONE SAID NITROGEN ATOM AND SAID ATOM OF THE 6TH GROUP OF THE PERIOCDIC ARRANGEMENT BEING LINKED TO SAID CARBON ATOM BY A DOUBLE BOND, SAID COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OFFN,N''-DIPHENYLTHIOUREA, 2-MERCAPTOTHIZOLINE, RHODAMIC ACID, A SUBSTITUTED ACID AMIDE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
130 words
IN A METHOD OF MANUFACTURING ACRYLIC ACID AND ITS FUNCTIONAL DERIVATIVES BY THE REACTION OF ACETYLENE WITH CARBON MONOXIDE AND A COMPOUND WITH A REACTIVE HYDROGEN ATOM WHILE USING A NICKEL HALIDE AS A CATALYST THE IMPROVEMENT WHICH COMPRISES CARRYING OUT SAID REACTION IN THE PRESENCE OF A COMPOUND CONTAINING ON THE SAME CARBON ATOM A NITROGEN ATOM AND AN ATOM OF AN ELEMENT OF THE 6TH GROUP OF THE PERIODIC ARRANGEMENT OF THE ELEMENTS HAVING AN ATOMIC NUMBER BETWEEN 16 AND 34, AT LEAST ONE SAID NITROGEN ATOM AND SAID ATOM OF THE 6TH GROUP OF THE PERIOCDIC ARRANGEMENT BEING LINKED TO SAID CARBON ATOM BY A DOUBLE BOND, SAID COMPOUND BEING SELECTED FROM THE CLASS CONSISTING OFFN,N''-DIPHENYLTHIOUREA, 2-MERCAPTOTHIZOLINE, RHODAMIC ACID, A SUBSTITUTED ACID AMIDE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2738364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |