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Patent US2822343A successfully refreshed from Google Patents.
US2822343A
Expired / Lapsed
US
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Ethylenically unsaturated polyester resinous compositions and the cure thereof in the presence of a catalytic promoter
Assignee: Wyeth Holdings LLC
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Filing: 1954-01-14
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Granted: 1958-02-04
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Expires: 1974-01-14
Abstract
No abstract record available.
Inventors
- 👤 Harold M Day
- 👤 Charles H Dugliss
- 👤 Roy R H Miron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:39
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A RESINOUS COMPOSITION COMPRISING THE POLYMERIZABLE MIXTURE OF (1) AN ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID-POLYHYDRIC ALCOHOL POLYESTER, (2) A COMPOUND CONTAINING A POLYMERIZABLE CH2=C< GROUP AND HAVING A BOILING POINT OF AT LEAST 60*C., A POLYMERIZATION CATALYST FOR (1) AND (2), AND (3) A CATALYTIC AMOUNT OF AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF THE GAUNIDINES, ISOMELAMINES, AMIDINES, BIGUANIDES, GUANYLUREAS, PSEUDOUREAS, PSEUDOTHIOUREAS AND THE SALTS THEREOF, WHEREBY CATALYTIC ACTIVITY OF THE POLYMERIZATION CATALYST IS PROMOTED.
Claim 2
Dependent Claim
75 words
A RESINOUS COMPOSITION COMPRISING THE POLYMERIZABLE MIXTURE OF (1) AN ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID-POLYHYDRIC ALCOHOL POLYESTER, (2) A COMPOUND CONTAINING A POLYMERIZABLE CH2=C< GROUP AND HAVING A BOILING POINT OF AT LEAST 60*C., A POLYMERIZATION CATALYST FOR (1) AND (2), AND (3) A CATALYTIC AMOUNT OF AN INGREDIENT SELECTED FROM THE GROUP CONSISTING OF THE GAUNIDINES, ISOMELAMINES, AMIDINES, BIGUANIDES, GUANYLUREAS, PSEUDOUREAS, PSEUDOTHIOUREAS AND THE SALTS THEREOF, WHEREBY CATALYTIC ACTIVITY OF THE POLYMERIZATION CATALYST IS PROMOTED.
References Cited (Backward Citations)
US2332898A
Cited
US2452669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |