US3360486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of epoxide resins from aromatic amines in the presence of a hydroxyl group-containing promoter
Assignee: BASF Schweiz AG
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Filing: 1964-06-09
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Granted: 1967-12-26
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Garnish Edward William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:18
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
PROCESS FOR THE PRODUCTION OF EXPOXIDE RESINS CONTAINING ON AVERAGE MORE THAN ONE 1,2-EPOXIDE GROUP PER MOLECULE WHICH CONSISTS ESSENTIALLY OF (A) REACTING AN AROMATIC AMINE CONTAINING AT LEAST TWO HYDROGEN ATOMS ATTACHED DIRECTLY TO NITROGEN WITH AN EPIHALOHYDRIN IN THE PRESENCE OF A PROMOTER FORMED BY REACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOIS AND ALCOHOLS HAVING NOT MORE THAN THREE ALCOHOLIC HYDROXYL GROUPS PER MOLECULE WITH AN EPIHALOHYDRIN, OPENING THE 1,2EPOXY GROUP OF THE IPIHALOHYDRIN AND (B) TREATING THE RESULTING MIXTURE WITH AN ALKALI SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALINE EARTH METAL HYDROXIDES, THE QUANTITY OF ALKALI BEING AT LEAST EQUIVALENT TO THE TOTAL AMOUNT OF REACTED EPIHALOHYDRIN.
Claim 2
Dependent Claim
118 words
PROCESS FOR THE PRODUCTION OF EXPOXIDE RESINS CONTAINING ON AVERAGE MORE THAN ONE 1,2-EPOXIDE GROUP PER MOLECULE WHICH CONSISTS ESSENTIALLY OF (A) REACTING AN AROMATIC AMINE CONTAINING AT LEAST TWO HYDROGEN ATOMS ATTACHED DIRECTLY TO NITROGEN WITH AN EPIHALOHYDRIN IN THE PRESENCE OF A PROMOTER FORMED BY REACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOIS AND ALCOHOLS HAVING NOT MORE THAN THREE ALCOHOLIC HYDROXYL GROUPS PER MOLECULE WITH AN EPIHALOHYDRIN, OPENING THE 1,2EPOXY GROUP OF THE IPIHALOHYDRIN AND (B) TREATING THE RESULTING MIXTURE WITH AN ALKALI SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALINE EARTH METAL HYDROXIDES, THE QUANTITY OF ALKALI BEING AT LEAST EQUIVALENT TO THE TOTAL AMOUNT OF REACTED EPIHALOHYDRIN.
References Cited (Backward Citations)
US3033803A
Cited
US3248353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |