US3755498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile fiber comprising an admixture of a polyester and an addition polymer having a tribromoneopentyl group in the repeating unit of theaddition polymer
Assignee: Eastman Kodak Co
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Filing: 1972-02-09
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Granted: 1973-08-28
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Expires: 1992-02-09
Abstract
Abstract DISCLOSED ARE FLAME RETARDANT TEXTILE FIBERS COMPRISING AD ADMIXTURE OF A POLYESTER AND AN ADDITION POLYMER HAVING THE -COO-CH2-C(-CH2-BR)3 GROUPS AS A PORTION OF THE POLYMER UNIT. THE POLYESTER IS DERIVED FROM AT LEAST 90 MOLE PERCENT TEREPHTHALIC ACID AND AT LEAST 90 MOLE PERCENT ETHYLENE GLYCOL, TETRAMETHYL ENE GLYCOL, OR 1,4-CYCLOHEXANEDIMETHANOL. THE ADDITION POLYMERS PREFERABLY COMPRISES AT LEAST 95 MOLE PERCENT UNITS OF THE STRUCTURE -(CH2-CH(-COO-CH2-C(-CH2-BR)3))N- THE TEXTILE FIBERS OF THIS INVENTION ARE FLAME RETARDANT AND EXHIBIT A DESIRABLE AND UNOBVIOUS COMBINATION OF OTHER PROPERTIES NECESSARY IN A COMMERICALLY ACCEPTABLE TEXTILE FIBER.
Inventors
- 👤 Intire J Mc
- 👤 W Dickason
- 👤 Sickle D Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:49
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |