US3763100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions from solid epoxy resins and adducts of aziridinecompounds with polyepoxides
Assignee: Dow Chemical Co
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Filing: 1971-12-09
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Granted: 1973-10-02
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Expires: 1991-12-09
Abstract
Abstract COATING COMPOSITIONS ARE DISCLOSED WHICH CONTAIN (A) AN EPOXY-BIPHENOL ADDUCT HAVING LOW PERCENT EPOXIDE, (B) AN ADDUCT OF AN AZIRIDINE COMPOUND WITH A POLYEPOXIDE, AND (C) OPTIONALLY A MONO-FUNCTIONAL SECONDARY AMINE. THESE COATINGS ARE PARTICULARLY USEFUL AS PRIMERS FOR METALLIC SUBSTRATES.
Inventors
- 👤 P Martin
- 👤 W Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:12
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/506; C08G59/5066; Y; Y10; Y10S; Y10S525/00; Y10S525/93; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
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 |