US2848357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous terpolymer sized nylon yarns
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-12-15
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Granted: 1958-08-19
•
Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Alva F Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:11
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A METHOD OF SIZING WATER-INSOLUBLE NYLON WARM YARNS TO PREPARE THEM FOR WEAVING WHICH COMPRISES TREATING SAID YARNS WITH AN AQUEOUS SOLUTION COMPRISING FROM ABOUT 2 TO 15% BY WEIGHT OF A TERPOLYMER OF VINYL ACETATE, MALEIC ANHYDRIDE AND A STYRENE COMPOUND TAKEN FROM THE GROUP CONSISTING OF STYRENE, ALPHA ALKYL STYRENES, ALPHA CHLOROSTYRENE, RING-SUBSTITUTED MONO- AND DI-ALKYL AND CHLOROSTYRENES, AND DIALKYL STYRENES IN WHICH ONE ALKYL GROUPS IS IN THE ALPHA POSITION, SAID ALKYL GROUPS CONTAINING FROM 1 TO 4 CARBON ATOMS, THE MOL PERCENT RATIO OF VINYL ACETATE TO MALEIC ANHYDRIDE VARYING FROM 52:48 TO 50:50 AND THE MOL PRECENT RATIO OF STYRENE COMPOUND RANGING FROM 1.8 TO 4 IN THE TERPOLYMER, SAID SOLUTION BEING SUPPLIED IN AN AMOUNT SUFFICIENT TO DEPOSIT FROM ABOUT 0.5 TO 10% BY WEIGHT, BASED ON THE DRY YARNS, OF SAID TERPOLYMER, AND THEN DRYING SAID YARNS.
Claim 2
Independent Claim
144 words
A METHOD OF SIZING WATER-INSOLUBLE NYLON WARM YARNS TO PREPARE THEM FOR WEAVING WHICH COMPRISES TREATING SAID YARNS WITH AN AQUEOUS SOLUTION COMPRISING FROM ABOUT 2 TO 15% BY WEIGHT OF A TERPOLYMER OF VINYL ACETATE, MALEIC ANHYDRIDE AND A STYRENE COMPOUND TAKEN FROM THE GROUP CONSISTING OF STYRENE, ALPHA ALKYL STYRENES, ALPHA CHLOROSTYRENE, RING-SUBSTITUTED MONO- AND DI-ALKYL AND CHLOROSTYRENES, AND DIALKYL STYRENES IN WHICH ONE ALKYL GROUPS IS IN THE ALPHA POSITION, SAID ALKYL GROUPS CONTAINING FROM 1 TO 4 CARBON ATOMS, THE MOL PERCENT RATIO OF VINYL ACETATE TO MALEIC ANHYDRIDE VARYING FROM 52:48 TO 50:50 AND THE MOL PRECENT RATIO OF STYRENE COMPOUND RANGING FROM 1.8 TO 4 IN THE TERPOLYMER, SAID SOLUTION BEING SUPPLIED IN AN AMOUNT SUFFICIENT TO DEPOSIT FROM ABOUT 0.5 TO 10% BY WEIGHT, BASED ON THE DRY YARNS, OF SAID TERPOLYMER, AND THEN DRYING SAID YARNS.
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |