Patent US2324270A successfully refreshed from Google Patents.
US2882250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing epoxy resin modified proteins and compositions resulting therefrom
Assignee: Stauffer Chemical Co
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Filing: 1955-07-07
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Granted: 1959-04-14
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Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Edgar B Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:49
CPC Classifications
C; C09; C09J; C09J189/00; C08; C08L; C08L63/00; C09H; C09H11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE PROCESS OF MODIFYING A PROTEIN SELECTED FROM THE CLASS CONSISTING OF SOYA, CASEIN, GELATIN, PEANUT AND ANIMAL GLUE PROTEIN COMPRISING: DISSOLVING SAID PROTEIN IN WATER HAVING A PH OF AT LEAST 8.0; AND THEREAFTER ADDING THERETO BETWEEN ABOUT 0.05% AND 25%, BASED UPON THE WEIGHT OF SAID PROTEIN, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) POLYEPOXIDES PREPARED BY REACTING A POLYHDRIC PHENOL AND AN EPIHALOHYDRIN FROM THE GROUP CONSISTING OF EPHCHLOROHYDRIN, EPIBROMOHYDRIN AND EPIIODOHYDRIN AND (B) POLYHALOHYDRINS PREPARED BY REACTING A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALIPHATIC ALCOHOLS AND POLYDRIC CYCLOALIPHATIC ALCOHOLS WITH AN EPIHALOHYDRIN SELECTED FROM THE GROUP CONSISTING OF EPICHLOROHYDRIN, EPIBROMOHYDRIN AND EPIIODOHYDRIN.
Claim 2
Dependent Claim
112 words
THE PROCESS OF MODIFYING A PROTEIN SELECTED FROM THE CLASS CONSISTING OF SOYA, CASEIN, GELATIN, PEANUT AND ANIMAL GLUE PROTEIN COMPRISING: DISSOLVING SAID PROTEIN IN WATER HAVING A PH OF AT LEAST 8.0; AND THEREAFTER ADDING THERETO BETWEEN ABOUT 0.05% AND 25%, BASED UPON THE WEIGHT OF SAID PROTEIN, OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) POLYEPOXIDES PREPARED BY REACTING A POLYHDRIC PHENOL AND AN EPIHALOHYDRIN FROM THE GROUP CONSISTING OF EPHCHLOROHYDRIN, EPIBROMOHYDRIN AND EPIIODOHYDRIN AND (B) POLYHALOHYDRINS PREPARED BY REACTING A POLYOL SELECTED FROM THE GROUP CONSISTING OF POLYHYDRIC ALIPHATIC ALCOHOLS AND POLYDRIC CYCLOALIPHATIC ALCOHOLS WITH AN EPIHALOHYDRIN SELECTED FROM THE GROUP CONSISTING OF EPICHLOROHYDRIN, EPIBROMOHYDRIN AND EPIIODOHYDRIN.
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |