US3094552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated aliphatic nitriles
Assignee: Distillers Co Yeast Ltd
•
Filing: 1960-10-11
•
Granted: 1963-06-18
•
Expires: 1980-10-11
Abstract
No abstract record available.
Inventors
- 👤 Wood Barrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:54
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/16; B01J23/18; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS FOR THE PRODUCTION OF AN UNSATURATED ALIPHATIC NITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE WHICH COMPRISES REACTING IN THE VAPOR PHASE AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN FROM PRODUCTION OF ACRYLONITRILE AND METHACROLEIN FOR PRODUCTION OF METHACRYLONITRILE WITH OXYGEN AND AMONIA AT A TEMPERATURE OF ABOUT 300550*C., OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) A MIXTURE OF THE OXIDES OF ANTIMONY AND OXIDES OF TIN, AND (2) A COMPOUND OF ANTIMONY, TIN AND OXYGEN.
Claim 2
Dependent Claim
86 words
THE PROCESS FOR THE PRODUCTION OF AN UNSATURATED ALIPHATIC NITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE WHICH COMPRISES REACTING IN THE VAPOR PHASE AN ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN FROM PRODUCTION OF ACRYLONITRILE AND METHACROLEIN FOR PRODUCTION OF METHACRYLONITRILE WITH OXYGEN AND AMONIA AT A TEMPERATURE OF ABOUT 300550*C., OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF (1) A MIXTURE OF THE OXIDES OF ANTIMONY AND OXIDES OF TIN, AND (2) A COMPOUND OF ANTIMONY, TIN AND OXYGEN.
References Cited (Backward Citations)
US2691037A
Cited
US2904580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |