Patent US3749599A successfully refreshed from Google Patents.
US3749599A
Expired / Lapsed
US
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Process for treating synthetic fiber with a fire retardant and the treated fiber
Assignee: Dow Chemical Co
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Filing: 1971-09-13
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Granted: 1973-07-31
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Expires: 1991-09-13
Abstract
Abstract POLYESTER, CELLULOSE TRIACETATE, AND POLYAMIDE FIBERS ARE MADE FIRE RETARDANT BY CONTACTING WITH A HOT GLYCOL SOLUTION OF 2-(2,4,6-TRIBROMOPHENOXY) ETHANOL. THIS COMPOUND ALSO ACTS AS A DYE ASSISTANT FOR POLYESTER AND CELLULOSE TRIACETATE FIBERS. THE TREATED FIBERS ARE RESISTANT TO LOSS OF THE BROMINATED COMPOUND DURING LAUNDERING AND DRY CLEANING PROCESSES.
Inventors
- 👤 S Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:35
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/165; D06M13/152; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10S8/93; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |