Patent US3056823A successfully refreshed from Google Patents.
US3056823A
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Transesterification process for making trialiphatic phosphite esters
Assignee: Hooker Chemical Corp
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Filing: 1956-05-31
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Granted: 1962-10-02
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Expires: 1976-05-31
Abstract
No abstract record available.
Inventors
- 👤 Hechenbleikner Ingenuin
- 👤 Albro T Gaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS OF PREPARING A TRIALIPHATIC HYDROCARBON PHOSPHITE WHEREIN THE HYDROCARBON GROUP IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKENYL COMPRISING TRANSESTERIFYING A TRIARYL PHOSPHILTE WHEREIN THE ARYL GROUP IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, CHLOROPHENYL AND PHENYL HAVING 1 TO 3 LOWER ALKYL SUBSTITUENTS WITH AT LEAST ABOUT 3 MOLS OF MONOHYDROXY ALIPHATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKANOLS AND ALKENOLS PER MOL OF TRIARYL PHOSPHITE IN THE PRESENCE OF A SMALL BUT EFFECTIVE AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF A METAL SALT OF A MEMBER OF THE GROUP CONSISTING OF ALKANOLS, ALKENOLS, PHENOL AND LOWER ALKYL SUBSTITUTED PHENOLS, SAID CATALYST BEING A SUFFICIENTLY STRONG BASE TO HAVE A PH OF AT LEAST 11 IN A 0.1 N SOLUTION.
Claim 2
Dependent Claim
130 words
A PROCESS OF PREPARING A TRIALIPHATIC HYDROCARBON PHOSPHITE WHEREIN THE HYDROCARBON GROUP IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKENYL COMPRISING TRANSESTERIFYING A TRIARYL PHOSPHILTE WHEREIN THE ARYL GROUP IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, CHLOROPHENYL AND PHENYL HAVING 1 TO 3 LOWER ALKYL SUBSTITUENTS WITH AT LEAST ABOUT 3 MOLS OF MONOHYDROXY ALIPHATIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKANOLS AND ALKENOLS PER MOL OF TRIARYL PHOSPHITE IN THE PRESENCE OF A SMALL BUT EFFECTIVE AMOUNT OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF A METAL SALT OF A MEMBER OF THE GROUP CONSISTING OF ALKANOLS, ALKENOLS, PHENOL AND LOWER ALKYL SUBSTITUTED PHENOLS, SAID CATALYST BEING A SUFFICIENTLY STRONG BASE TO HAVE A PH OF AT LEAST 11 IN A 0.1 N SOLUTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |