US2809942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making polyglycidyl cyanurates
Assignee: Celanese Coatings Co
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Filing: 1955-10-21
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Granted: 1957-10-15
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Expires: 1975-10-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold G Cooke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:34
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3236; C08G59/3245; C08G59/02; C08G59/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF PRODUCING POLYGLYCIDYL CYANURATES WHICH COMPRISES REACTING CYANURIC ACID WITH EPICHLORHYDRIN IN THE PRESENCE OF AN ORGANIC BASE AS A CATALYST AND AN ORGANIC SOLVENT FOR CYANURIC ACID AND WITH THE PROPORTION OF EPICHLOROHYDRIN NOT LESS THAN ABOUT 21/2 MOLS OF EPICHLORHYDRIN FOR 1 MOL OF CYANURIC ACID AND SUFFICIENT TO FORM POLYCHLORHYDRIN CYANURATES, AND SUBJECTING THE RESULTING CHLORHYDRINS TO DEHYDROHALOGENATION TO FORM POLYGLYCIDYL CYANURATES.
Claim 2
Independent Claim
67 words
THE METHOD OF PRODUCING POLYGLYCIDYL CYANURATES WHICH COMPRISES REACTING CYANURIC ACID WITH EPICHLORHYDRIN IN THE PRESENCE OF AN ORGANIC BASE AS A CATALYST AND AN ORGANIC SOLVENT FOR CYANURIC ACID AND WITH THE PROPORTION OF EPICHLOROHYDRIN NOT LESS THAN ABOUT 21/2 MOLS OF EPICHLORHYDRIN FOR 1 MOL OF CYANURIC ACID AND SUFFICIENT TO FORM POLYCHLORHYDRIN CYANURATES, AND SUBJECTING THE RESULTING CHLORHYDRINS TO DEHYDROHALOGENATION TO FORM POLYGLYCIDYL CYANURATES.
References Cited (Backward Citations)
US2581464A
Cited
US2741607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |