Patent US3224990A successfully refreshed from Google Patents.
US3224990A
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Preparing a water soluble cationic thermosetting resin by reacting a polyamide with epichlorohydrin and ammonium hydroxide
Assignee: Georgia-Pacific LLC
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Filing: 1963-03-11
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Granted: 1965-12-21
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Douglas C Babcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:55
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G59/00; C08G59/02; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS OF PREPARING AN AQUEOUS SOLUTION OF A CATIONIC THERMOSETTING RESIN WHICH COMPRISES REACTING DIEHTYLENE TRIAMINE WITH ADIPIC ACID TO FORM A WATER-SOLUBLE PRE-POLYMER, THE MOLAR RATIO OF THE AMINE TO THE ACID BEING 1.0:1.0, THEREAFTER REACTING THE PRE-POLYMER IN AQUEOUS SOLUTION WITH EPICHLOROHYDRIN AND AMMONIUM HYDROXIDE IN A MOLAR RATIO OF THE PRE-POLYMER TO AMMONIUM HYDROXIDE TO EPICHLOROHYDRIN OF 1.0:0.5:2.5 TO FORM A WATER SOLUBLE CATIONIC THERMOSETTING RESIN HAVING A PH IN THE RANGE OF 3.4 TO 3.6.
Claim 2
Dependent Claim
80 words
A PROCESS OF PREPARING AN AQUEOUS SOLUTION OF A CATIONIC THERMOSETTING RESIN WHICH COMPRISES REACTING DIEHTYLENE TRIAMINE WITH ADIPIC ACID TO FORM A WATER-SOLUBLE PRE-POLYMER, THE MOLAR RATIO OF THE AMINE TO THE ACID BEING 1.0:1.0, THEREAFTER REACTING THE PRE-POLYMER IN AQUEOUS SOLUTION WITH EPICHLOROHYDRIN AND AMMONIUM HYDROXIDE IN A MOLAR RATIO OF THE PRE-POLYMER TO AMMONIUM HYDROXIDE TO EPICHLOROHYDRIN OF 1.0:0.5:2.5 TO FORM A WATER SOLUBLE CATIONIC THERMOSETTING RESIN HAVING A PH IN THE RANGE OF 3.4 TO 3.6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |