Patent US3681282A successfully refreshed from Google Patents.
US3681282A
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Siliated polyhydantoin,polyester hydantoin siloxanes and polyhydantoin amide siloxanes for use as wire coatings
Assignee: Essex International Inc
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Filing: 1970-07-24
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Granted: 1972-08-01
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Expires: 1990-07-24
Abstract
Abstract POLYHYDANTOIN POLYMERS MODIFIED BY REACTION WITH SPECIFIC SILICON COMPOUNDS PROVIDE A CURED ENAMEL CHARACTERIZED BY A LOW COEFFICIENT OF FRICTION. FOR EXAMPLE, DIPHENYL HYDANTOIN IS REACTED WITH A POLYISOCYANANTE OR A POLYAMINE TO PROVIDE THE POLYHYDANTOIN POLYMER. THE PREFERRED SILICONES HAVE HYDROGEN HYDROXYL ALKYL OR ARYL RADICAL ATTACHED TO THE SILICON ATOMS, AND ARE NOT THREE DIMENSIONAL POLYMERS, BUT STRAIGHT CHAIN. THE HYDANTOIN REACTS WITH THE REACTIVE RADICAL TO PRODUCE A POLYMER HAVING UNEXPECTED PROPERTIES.
Inventors
- 👤 Jerome A Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:22
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3821; C08G18/3842; C08G18/3848; C08G69/00; C08G69/44; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; C08G77/00; C08G77/42; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/307; H01B3/42; Y; Y10; Y10S; Y10S525/00; Y10S525/908
Claims Analysis
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |