Patent US2591539A successfully refreshed from Google Patents.
US2591539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous compositions
Assignee: Celanese Coatings Co
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Filing: 1950-10-03
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Granted: 1952-04-01
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Expires: 1970-10-03
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:34
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A COMPOSITION CONTAINING SUBSTANTIAL PROPORTIONS OF (1) AN APOXIDE RESIN WHICH IS A POLYETHER DERIVATIVE OF A POLYHYDRIC PHENOL CONTAINING EPOXIDE GROUPS AND FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXIDE AND HYDROXYL GROUPS (2) A MONOBASIC ACID MODIFIED ALKYD RESIN, AND (3) A FUSIBLE CONDENSATE OF AN ALDEHYDE WITH AN ORGANIC AMMONIA DERIVATIVE SELECTED FROM THE GROUP WHICH CONSISTS OF AMINES AND THE AMIDES AND CONTAINING REACTIVE HYDROGEN, ATHE PORPORTIONS BEING WITHIN THE RANGE OF FROM ABOUT 5 TO 50% OF EPOXIDE RESIN, FROM ABOUT 25% TO 75% OF ALKYD RESIN AND FROM ABOUT 10% TO 25% OF ALDEHYDE CONDENSATE.
Claim 2
Dependent Claim
100 words
A COMPOSITION CONTAINING SUBSTANTIAL PROPORTIONS OF (1) AN APOXIDE RESIN WHICH IS A POLYETHER DERIVATIVE OF A POLYHYDRIC PHENOL CONTAINING EPOXIDE GROUPS AND FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXIDE AND HYDROXYL GROUPS (2) A MONOBASIC ACID MODIFIED ALKYD RESIN, AND (3) A FUSIBLE CONDENSATE OF AN ALDEHYDE WITH AN ORGANIC AMMONIA DERIVATIVE SELECTED FROM THE GROUP WHICH CONSISTS OF AMINES AND THE AMIDES AND CONTAINING REACTIVE HYDROGEN, ATHE PORPORTIONS BEING WITHIN THE RANGE OF FROM ABOUT 5 TO 50% OF EPOXIDE RESIN, FROM ABOUT 25% TO 75% OF ALKYD RESIN AND FROM ABOUT 10% TO 25% OF ALDEHYDE CONDENSATE.
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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |