Patent US3226451A successfully refreshed from Google Patents.
US3226451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester resin resulting from the copolymerization of an unsaturated polyester and a polyallyl ether, and process for preparing same
Assignee: FR DUCO SOC
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Filing: 1963-01-08
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Granted: 1965-12-28
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Expires: 1983-01-08
Abstract
No abstract record available.
Inventors
- 👤 Behar Robert
- 👤 Cahn Andre Daniel
- 👤 Aussedat Robert Antoine Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:46
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
PROCESS FOR PREPARING AN UNSATURATED POLYESTER RESIN HARDENING READILY IN AIR AT ROOM TEMPERATURE, COMPRISING HEATING A MIXUTE OF A POLYALLYL ETHER OF A POLYGYLCEROL AND AT LEAST ONE ACIDIC REACTANT SELECTED FROM THE GROUP CONSISTING OF POLYCARBOXYLIC ACIDS AND ANHYDRIDES THEREOF AND AT LEAST ONE POLYHYDRIC ALCOHOL REACTANT, ONE AT LEAST OF THESE REACTANTS BEING ETHYLENICALLY UNSATURATED, SO AS TO OBTAIN AN UNSATURATED POLYESTER, SAID POLYALLYL ETHER OF A POLYGLYCEROL HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
75 words
PROCESS FOR PREPARING AN UNSATURATED POLYESTER RESIN HARDENING READILY IN AIR AT ROOM TEMPERATURE, COMPRISING HEATING A MIXUTE OF A POLYALLYL ETHER OF A POLYGYLCEROL AND AT LEAST ONE ACIDIC REACTANT SELECTED FROM THE GROUP CONSISTING OF POLYCARBOXYLIC ACIDS AND ANHYDRIDES THEREOF AND AT LEAST ONE POLYHYDRIC ALCOHOL REACTANT, ONE AT LEAST OF THESE REACTANTS BEING ETHYLENICALLY UNSATURATED, SO AS TO OBTAIN AN UNSATURATED POLYESTER, SAID POLYALLYL ETHER OF A POLYGLYCEROL HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |