Patent US2631997A successfully refreshed from Google Patents.
US2631997A
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Polymerization of unsaturated organic compounds using improved redox catalysts
Assignee: Goodrich Corp
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Filing: 1950-07-14
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Granted: 1953-03-17
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Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
- 👤 William D Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:20
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE PROCESS WHICH COMPRISES, SUBJECTING A MONOMERIC MATERIAL COMPRISING A VINYLIDENE COMPOUND TO POLYMERIZATION IN AN ALKALINE AQUEOUS MEDIUM IN THE PRESENCE OF CATALYTIC AMOUNTS OF A COMBINATION OF SUBSTANCES COMPRISING A PEROXYGEN COMPOUND, A WATER-SOLUBLE ALKYLENE POLYAMINE IN WHICH THERE ARE AT LEAST TWO AMINO GROUPS SEPARATED BY AT LEAST TWO CARBON ATOMS AND CONTAINING AT LEAST ONE PRIMARY TERMINAL AMINO GROUP, AND A SUBSTANCE IONIZABLE TO YIELD SULFITR (SO3=) ION.
Claim 2
Dependent Claim
72 words
THE PROCESS WHICH COMPRISES, SUBJECTING A MONOMERIC MATERIAL COMPRISING A VINYLIDENE COMPOUND TO POLYMERIZATION IN AN ALKALINE AQUEOUS MEDIUM IN THE PRESENCE OF CATALYTIC AMOUNTS OF A COMBINATION OF SUBSTANCES COMPRISING A PEROXYGEN COMPOUND, A WATER-SOLUBLE ALKYLENE POLYAMINE IN WHICH THERE ARE AT LEAST TWO AMINO GROUPS SEPARATED BY AT LEAST TWO CARBON ATOMS AND CONTAINING AT LEAST ONE PRIMARY TERMINAL AMINO GROUP, AND A SUBSTANCE IONIZABLE TO YIELD SULFITR (SO3=) ION.
References Cited (Backward Citations)
US2462354A
Cited
US2543636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |