US2803607A
Expired / Lapsed
US
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Nu-substituted polyacrylamide sizing material composition and method
Assignee: Bayer AG
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Filing: 1953-05-27
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Granted: 1957-08-20
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Stroh Rudolf
- 👤 Gerber Hanns
- 👤 Gensel Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:00
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; D06M15/01; D06M15/03; D06M15/05; D06M15/09; D06M15/11; D06M15/21; D06M15/285; D06M15/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A SIZING COMPOSITION FOR ARTIFICIAL FIBERS CONTAINING (A) A WATER SOLUBLE N-SUBSTITUTED HOMOPOLYACRYLAMIDE, WHEREIN SAID N-SUBSTITUENTS ARE THOSE OF THE FORMULA -R-(-OR-)-NOH, WHEREIN R IS THE ALKYLENE RESIDUE OF AN ALPHA, BETA-ALKYLENE EPOXIDE AND N IS AN INTEGER OF AT LEAST 1 AND (B) AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF STARCH, DEXTRIN, GLUE, SUGAR, SALT OF CELLULOSE ETHER CARBOXYLIC ACIDS AND WAX-LIKE SUBSTANCES OBTAINED BY THE ACTION OF ETHYLENE OXIDE ON POLYVALENT ALCOHOLS.
Claim 2
Dependent Claim
76 words
A SIZING COMPOSITION FOR ARTIFICIAL FIBERS CONTAINING (A) A WATER SOLUBLE N-SUBSTITUTED HOMOPOLYACRYLAMIDE, WHEREIN SAID N-SUBSTITUENTS ARE THOSE OF THE FORMULA -R-(-OR-)-NOH, WHEREIN R IS THE ALKYLENE RESIDUE OF AN ALPHA, BETA-ALKYLENE EPOXIDE AND N IS AN INTEGER OF AT LEAST 1 AND (B) AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF STARCH, DEXTRIN, GLUE, SUGAR, SALT OF CELLULOSE ETHER CARBOXYLIC ACIDS AND WAX-LIKE SUBSTANCES OBTAINED BY THE ACTION OF ETHYLENE OXIDE ON POLYVALENT ALCOHOLS.
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |