US3562215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature,latent epoxy resin curing system
Assignee: 3M Co
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Filing: 1967-06-09
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Granted: 1971-02-09
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Expires: 1987-06-09
Abstract
Abstract A MULTICOMPONENT CURING SYSTEM STABLE IN THE PRESENCE OF EXPOXY RESIN UNDER NORMAL SHELF CONDITIONS AND CAPABLE OF CURING THE RESIN AT ACCEPTABLE RATES BY IN SITU GENERATION OF THE CURING AGENTS BELOW ABOUT 200*F. INCLUDING A ROOM TEMPERATURE STABLE COMPOUND DECOMPOSABLE TO FORM AN AMINE HAVING AT LEAST ONE ACTIVE HYDROGEN ATOM, SUCH AS 3-PHENYL-1,1-DIMETHYL UREA, AN OH CONTAINING ORGANIC COMPOUND, SUCH AS ETHYLENE GLYCOL, AND AN ORGANO LEAD OR ORGANO MERCURY COMPOUND, SUCH AS LEAD OCTOATE OR PHENYL MERCURIC HYDROXIDE.
Inventors
- 👤 Neal E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:21
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4021; C08G59/68; C08G59/681; C08G59/685
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |