US3763102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of moldings and coatings by the reaction of a polyepoxide and a polyamine
Assignee: BASF SE
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Filing: 1972-05-03
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Granted: 1973-10-02
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Expires: 1992-05-03
Abstract
Abstract PRODUCTION OF MOLDINGS OR COATINGS BY REACTION OF A POLYEPOXIDE COMPOUND WITH A POLYAMINE OF THE GENERAL FORMULA: (R1,R2-PHENYL)-CH2-NH-(CH2)3-NH2 IN WHICH R1 AND R2 MAY BE IDENTICAL OR DIFFERENT AND ARE HYDROGEN, ALKYL OF ONE TO EIGHT CARBON ATOMS, OR CYCLOALKYL OR ARYL OF UP TO TWELVE CARBON ATOMS, IN THE PRESENCE OR ABSENCE OF CONVENTIONAL ADDITIVES.
Inventors
- 👤 H Hoffmann
- 👤 O Lissner
- 👤 K Merkel
- 👤 H Scholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:34
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5033
Claims Analysis
Total Claims: 0
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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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |