US3759878A
Expired / Lapsed
US
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Polymers modified with sulfonazide isocyanate compounds
Assignee: Hercules LLC
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Filing: 1971-09-29
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Granted: 1973-09-18
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Expires: 1991-09-29
Abstract
Abstract DISCLOSED ARE SULFONAZIDE-ISOCYANATE COMPOUNDS OF THE FORMULA WHERE R IS A POLYVALENT ALIPHATIC RADICAL AND X AND Y ARE INTEGERS FROM 1 TO 100. THE USE OF SAID SULFONAZIDE-ISOCYANATE COMPOUNDS TO MODIFY POLYMERS, CROSS-LINK POLYMERS, AND ADHERE POLYMERS TO SUBSTRATES SELECTED FROM SILICEOUS MATERIALS, METALS AND OTHER POLYMER SUBSTRATES IS DISCLOSED. ALSO DISCLOSED ARE RUBBER TIRES REINFORCED WITH POLYESTER TIRE CORD WHICH HAS BEEN MODIFIED WITH A SULFONAZIDE-ISOCYANATE COMPOUND.
Inventors
- 👤 D Breslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:35
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C07; C07C; C07C309/00; C08F; C08F8/00; C08F8/34; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/714; C08G18/72; C08G18/77; C08F2810/00; C08F2810/20; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962; Y10T428/2964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |