Patent US2923696A successfully refreshed from Google Patents.
US2923696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous compositions and method for producing same
Assignee: Jefferson Chemical Co Inc
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Filing: 1957-12-06
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Granted: 1960-02-02
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Expires: 1977-12-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Harwell
- 👤 William J Peppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:53
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A METHOD FOR PREPARING AND INFUSIBLE RESIN WHICH COMPRISES INTIMATELY ADMIXING A GLYCIDYL POLYETHER OF A HYDROXY COMPOUND SELECTED FROM THE GOUP CONSISTING OF POLYHYDRIC PHENOLS AND POLYHYDRIC ALCOHOLS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY GREATER THAN ONE WITH AN HIGH-BOILING AMINE PRODUCT IN THE PROPORTION OF 5-30 PARTS OF SAID AMINE TO 100 PARTS OF SAID GLYCIDYL POLYETHER BY WEIGHT, SAID AMINE PRODUCT BEING OBTAINED BY REACTING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND ETHYLENE GLYCOL WITH AMMONIA THE MOLS OF SAID AMMONIA BEING IN EXCESS OF THE MOLS OF SAID MATERIAL SELECED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND ETHYLENE GLYCOL UP TO A MOL RATIO OF ABOUT 3:1, AT A TEMPERATURE FROM ABOUT 150*C. TO 400*C. AND A SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION CATALYST THEREBY PRODUCING A COMPLEX REACTION PRODUCT AND SUBJECTING SAID REACTION PRODUCT OF DISTILLATION AT A TEMPERATURE UP TO ABOUT 200*C. AT ATMOSPHERIC PRESSURE TO REMOVE LOWER-BOILING COMPONENTS THEREBY LEAVING A HIGH-BOILING AMINE PRODUCT.
Claim 2
Independent Claim
169 words
A METHOD FOR PREPARING AND INFUSIBLE RESIN WHICH COMPRISES INTIMATELY ADMIXING A GLYCIDYL POLYETHER OF A HYDROXY COMPOUND SELECTED FROM THE GOUP CONSISTING OF POLYHYDRIC PHENOLS AND POLYHYDRIC ALCOHOLS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY GREATER THAN ONE WITH AN HIGH-BOILING AMINE PRODUCT IN THE PROPORTION OF 5-30 PARTS OF SAID AMINE TO 100 PARTS OF SAID GLYCIDYL POLYETHER BY WEIGHT, SAID AMINE PRODUCT BEING OBTAINED BY REACTING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND ETHYLENE GLYCOL WITH AMMONIA THE MOLS OF SAID AMMONIA BEING IN EXCESS OF THE MOLS OF SAID MATERIAL SELECED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND ETHYLENE GLYCOL UP TO A MOL RATIO OF ABOUT 3:1, AT A TEMPERATURE FROM ABOUT 150*C. TO 400*C. AND A SUPERATMOSPHERIC PRESSURE IN THE PRESENCE OF HYDROGEN AND A HYDROGENATION CATALYST THEREBY PRODUCING A COMPLEX REACTION PRODUCT AND SUBJECTING SAID REACTION PRODUCT OF DISTILLATION AT A TEMPERATURE UP TO ABOUT 200*C. AT ATMOSPHERIC PRESSURE TO REMOVE LOWER-BOILING COMPONENTS THEREBY LEAVING A HIGH-BOILING AMINE PRODUCT.
References Cited (Backward Citations)
US2412209A
Cited
US2585115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |