US3009898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture comprising a polyether polyepoxide, a polycarboxylic acid, and styrene or diallyl phthalate, and production of hardened resin therefrom
Assignee: BASF SE
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Filing: 1955-07-11
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Granted: 1961-11-21
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Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Meyer Ferdinand
- 👤 Demmler Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:55
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4223; C08F; C08F283/00; C08F283/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
A MIXTURE CAPABLE OF BEING HARDENED UPON HEATING CONSISTING ESSENTIALLY OF (1) A POLYETHER POLYEPOXIDE HAVING A 1,2-EPOXY EQUIVALENCY GREATER THAN 1 AND CONTAINING NO ALIPHATIC CARBON-TO-CARBON UNSATURATION, (2) AN OLEFINICALLY-UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE AND DIALLYL PHTHALATE, AND (3) A COMPONENT FROM THE GROUP CONSISTING OF POLYCARBOXYLIC ACIDS AND AHYDRIDES WHICH CONTAIN NO ALIPHATIC CARBONTO-CARBON UNSATURATION, SAID POLYEPOXIDE CONSTITUTING 10% TO 90% BY WEIGHT OF THE WEIGHT OF SAID POLYEPOXIDE AND SAID OLEFINICALLY-UNSATURATED COMPOUND, AND SAID COMPONENT BEING IN AN AMOUNT SUFFICIENT TO PROVIDE UP TO AT LEAST ABOUT TWO CARBOXY EQUIVALENTS PER EPOXY GROUP IN SAID POLYEPOXIDE.
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |