Patent US2815333A successfully refreshed from Google Patents.
US2815333A
Expired / Lapsed
US
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Stabilized unsaturated polyester compositions and process of making same
Assignee: Akzo Nobel Paints LLC
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Filing: 1955-02-28
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Granted: 1957-12-03
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jerome G Klein
- 👤 Edwin W Meyer
- 👤 Leonard C Grotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:23
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
A COMPOSITION OF MATTER COMPRISING A MIXTURE OF (A) LIQUID POLYMERIZABLE, ETHYLENICALLY UNSATURATED COMPOUND, (B) POLYMERIZABLE UNSATURATED POLYHYDRIC ALCOHOL-POLYCARBOXYLIC ACID POLYESTER WHICH IS SOLUBLE IN SAID ETHYLENICALLY UNSATURATED COMPOUND AND WHOSE MOLECULES CONTAIN A PLURALITY OF POLYMERIZABLY REACTIVE $ 2.3ENEDIOYL GROUPS, AND (C) A SMALL STABILIZING AMOUNT OF AN ISOTHIOURONIUM SALT OF AN ACID NOT MORE STRONGLY OXIDIZING THAN SULFURIC ACID, SAID SMALL DISSOLVED AMOUNT BEING EFFECTIVE TO DELAY THE GELATION OF SAID COMPOSITION IN THE ABSENCE OF POLYMERIZATION CATALYST WHEN COMPARED WITH A SIMILAR COMPOSITION FROM WHICH SAID SMALL STABILIZING AMOUNT HAS BEEN OMITTED.
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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |