US3629263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diglycidyl ethers
Assignee: BASF Schweiz AG
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Filing: 1969-11-04
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Granted: 1971-12-21
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Expires: 1989-11-04
Abstract
Abstract NEW DIGLYCIDYL ETHERS OF MONONUCLEAR, FIVE-MEMBERED OR SIX-MEMBERED, UNSUBSTITUTED OR SUBSTITUTED, OXYALKYLATED N-HETEROCYCLIC COMPOUNDS WHICH CONTAIN TWO NHGROUPS IN THE MOLECULE, BY REACTION OF MONONUCLEAR, FIVEMEMBERED OR SIX-MEMBERED, UNSUBSTITUTED OR SUBSTITUTED N-HETEROCYCLIC COMPOUNDS, FOR EXAMPLE HYDANTOIN, BARBITURIC ACID, URACIL, DIHYDROURACIL, PARABANIC ACID AND THE CORRESPONDING DERIVATIVES, WITH ALKYLENE OXIDE, FOR EXAMPLE ETHYLENE OXIDE OR PROPYLENE OXIDE, TO GIVE MONOALCOHOLS OR DIALCOHOLS, AND SUBSEQUENT GLYCIDYLATION OF THE OH- GROUPS OR OF THE OH- AND NH- GROUP TO GIVE THE CORRESPONDING GLYCIDYL ETHERS. THE COMPOUNDS ARE RESIN PRESURSORS.
Inventors
- 👤 Hans Batzer
- 👤 Juergen Habermeier
- 👤 Daniel Porret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/20; C07D239/22; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D239/24; C07D239/28; C07D239/46; C07D239/52; C07D239/54; C07D239/60; C07D239/62; C08; C08G; C08G59/00; C08G59/02; C08G59/10; C08G59/18; C08G59/20; C08G59/22; C08G59/26; C08G59/32; C08G59/38; Y; Y10; Y10S; Y10S525/00; Y10S525/908
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |