US3634322A
Expired / Lapsed
US
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Composition of matter comprising an epoxy resin dicyandiamide and hexamethylenetetramine
Assignee: BASF Schweiz AG
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Filing: 1970-04-22
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Granted: 1972-01-11
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Expires: 1990-04-22
Abstract
Abstract A HEAT-CURABLE COMPOSITION OF MATTER WHICH COMPRISES (A) AN EPOXIDE COMPOUND HAVING A EPOXIDE EQUIVALENCY GREATER THAN 1, (B) DICYANDIAMIDE AS THE CURING AGENT AND (C) HEXAMETHYLENE TETRAMINE AS A CURE ACCELERATOR. SUCH COMPOSITIONS ARE USEFUL INTER ALIA AS MOLDING COMPOSITIONS.
Inventors
- 👤 Peter Ruf
- 👤 Ewald Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:14
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4021; C08G59/50; C08G59/5046; C08G59/68; C08G59/686
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |