US3792016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal imidazolate-catalyzed systems
Assignee: 3M Co
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Filing: 1972-01-06
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Granted: 1974-02-12
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Expires: 1992-01-06
Abstract
Abstract METAL IMIDAZOLATES ARE CATALYST FOR CONVENTIONAL EPOXY RESIN SYSTEMS. THE COMBINATION OF A CURING AGENT, EPOXY MONOMER OR PREPOLYMER, AND A METAL IMIDAZOLATE IS LATENT, AND CURE IS EFFECTED BY HEATING THE SYSTEM. IF A TWO-PART SYSTEM IS DESIRED, THE METAL IMIDAZOLATE CAN BE INCLUDED IN EITHER THE EPOXY RESIN OR THE CURING AGENT PART. PREFERRED METAL IONS OF THE METAL IMIDAZOLATES ARE THE METALS OF GROUP VIII AND GROUPS I(B) AND II(B).
Inventors
- 👤 B Hill
- 👤 J Kehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:56
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; 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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |