US3676207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent sizing of yarns and fibers with durable polymers and copolymers for the production of fabrics with improved properties for particular end uses
Assignee: United States Department of Agriculture
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Filing: 1970-07-15
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Granted: 1972-07-11
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Expires: 1990-07-15
Abstract
Abstract THIS INVENTION TO A PROCESS FOR SIZING COTTON YARNS AND FIBERS. MORE PARTICULARLY, THIS INVENTION RELATES TO A METHOD OF SIZING COTTON FIBERS PRIOR TO WEAVING BY COATING OR IMPREGNATING THE FIBERS WITH POLYMERS AND COPOLYMERS WHICH ADHERE WELL WITH THE FIBER. IN THIS METHOD, COTTON FIBERS ARE SIZED WITH PERMANENT POLYMER ADDITIVES PRIOR TO WEAVING. THE POLYMER ADDITIVE EMPLOYED IS ONE WHICH IMPROVES THE WRINKLE RECOVERY OR ABRASION RESISTANCE WHEN APPLIED TO WOVEN FABRIC. BY APPLICATION OF THE POLYMER ADDITIVE TO THE YARN, PRIOR TO WEAVING, THE POLYMER ADDITIVE SERVES THE DUAL PURPOSE OF ACTING AS A WEAVING SIZE AND IMPROVING THE WRINKLE RECOVERY OF THE FINISHED FABRIC.
Inventors
- 👤 John T Lofton
- 👤 Robert J Harper Jr
- 👤 Eugene J Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/267; D06M15/37; D06M15/39; D06M15/423; D06M15/564; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/273; Y10T442/30; Y10T442/3049
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |