US2948583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing shaped oriented polyester articles having a metallic luster
Assignee: EIDP Inc
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Filing: 1958-03-04
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Granted: 1960-08-09
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Expires: 1978-03-04
Abstract
No abstract record available.
Inventors
- 👤 Dustin S Adams
- 👤 Ernst Albert
- 👤 Robert S Prengle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D01; D01F; D01F6/00; D01F6/58; D01F6/62; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
THE PROCESS OF PRODUCING A TEXTILE YARN WHICH COMPRISES SPINNING A FILAMENT OF A MOLTEN, HIGHLY POLYMERIC ESTER OF A DICARBOXYLIC ACID AND A DIHYDRIC ALCOHOL, SAID ESTER BEING CAPABLE OF BEING FORMED INTO FILAMENTS WHICH WHEN COLD DRAWN SHOW BY CHARACTERISTIC X-RAY PATTERN MOLECULAR ORIENTATION ALONG THE FIBER AXIS UNDER CONDITIONS WHEREBY THE FILAMENT HAS AN AS-SPUN BIREFRINGENCE OF NOT MORE THAN 0.01, AGING THE FILAMENT FOR A PERIOD OF AT LEAST ONE HOUR, AND DRAWING THE FILAMENT AT ITS NATURAL DRAW RATIO TO MORE THAN 5.0 TIMES ITS ORIGINAL LENGTH AT A DRAWING SPEED OF AT LEAST 0.75 YARD PER MINUTE AND LESS THAN 50 YARDS PER MINUTE AT A TEMPERATURE OF LESS THAN 80*C. WHEREBY A METALLIC LUSTER IS IMPARTED TO SAID YARN AND SAID YARN IS HIGHLY ORIENTED AND UNIFORMLY DRAWN.
Claim 2
Dependent Claim
135 words
THE PROCESS OF PRODUCING A TEXTILE YARN WHICH COMPRISES SPINNING A FILAMENT OF A MOLTEN, HIGHLY POLYMERIC ESTER OF A DICARBOXYLIC ACID AND A DIHYDRIC ALCOHOL, SAID ESTER BEING CAPABLE OF BEING FORMED INTO FILAMENTS WHICH WHEN COLD DRAWN SHOW BY CHARACTERISTIC X-RAY PATTERN MOLECULAR ORIENTATION ALONG THE FIBER AXIS UNDER CONDITIONS WHEREBY THE FILAMENT HAS AN AS-SPUN BIREFRINGENCE OF NOT MORE THAN 0.01, AGING THE FILAMENT FOR A PERIOD OF AT LEAST ONE HOUR, AND DRAWING THE FILAMENT AT ITS NATURAL DRAW RATIO TO MORE THAN 5.0 TIMES ITS ORIGINAL LENGTH AT A DRAWING SPEED OF AT LEAST 0.75 YARD PER MINUTE AND LESS THAN 50 YARDS PER MINUTE AT A TEMPERATURE OF LESS THAN 80*C. WHEREBY A METALLIC LUSTER IS IMPARTED TO SAID YARN AND SAID YARN IS HIGHLY ORIENTED AND UNIFORMLY DRAWN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |