US2801228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions cured with metallic salts of enol-keto tautomeric compounds
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1952-10-10
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Granted: 1957-07-30
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Expires: 1972-10-10
Abstract
No abstract record available.
Inventors
- 👤 Starck Hans
- 👤 Schlenker Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
C; C09; C09J; C09J163/00; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/68; C08G59/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN EPOXY RESIN COMPOSITION DERIVED BY THE REACTION OF A POLYHYDROXY PHENOL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DICHLOROHYDRINE AND EPICHLOROHYDRINE, HAVING COMBINED WITH SUCH RESIN, AS A HARDENING AGENT, A SALT OF AN ENOL-KETO TAUTOMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETOACETIC ACID ESTER, MALONIC ACID ESTER, ACETYL ACETONE, FORMLY ACETOPHENONE AND FORMLY ACETONE, THE METAL OF WHICH CAN BE EASILY SPLIT OFF AND IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, NICKEL, COBALT AND COPPER.
Claim 2
Dependent Claim
81 words
AN EPOXY RESIN COMPOSITION DERIVED BY THE REACTION OF A POLYHYDROXY PHENOL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DICHLOROHYDRINE AND EPICHLOROHYDRINE, HAVING COMBINED WITH SUCH RESIN, AS A HARDENING AGENT, A SALT OF AN ENOL-KETO TAUTOMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACETOACETIC ACID ESTER, MALONIC ACID ESTER, ACETYL ACETONE, FORMLY ACETOPHENONE AND FORMLY ACETONE, THE METAL OF WHICH CAN BE EASILY SPLIT OFF AND IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, NICKEL, COBALT AND COPPER.
References Cited (Backward Citations)
BE511927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |