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Patent US2623807A successfully refreshed from Google Patents.
US2623807A
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Cellulosic textiles reacted with urea-vinyl sulfone addition products
Assignee: Akzo Nobel UK PLC
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Filing: 1950-08-02
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Granted: 1952-12-30
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Expires: 1970-08-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Schappel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:04
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M13/00; D06M13/244; D06M13/248; D06M13/272; D06M13/278; Y; Y10; Y10S; Y10S8/00; Y10S8/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
A CELLULOSIC TEXTILE MATERIAL PRODUCED BY THE PROCESS OF CLAIM 2. THEREBY HAVING ITS WATER RETENTION AND THE DIFFERENCE BETWEEN ITS DRY AND WET EXTENSIBILITIES REDUCED.
Claim 2
Independent Claim
120 words
A METHOD FOR TREATING A CELLULOSIC TEXTILE MATERIAL WHICH CONTAINS A REACTIVE HYDROXYL GROUP TO REDUCE THE WATER RETENTION AND DIFFERENCE IN DRY AND WET EXENSIBILITY THEREOF COMPRISING TREATING SAID CELLULOSIC TEXTILE MATERIAL WITH AN AQUEOUS SOLUTION OF A RESIN-FORMING ADDITION PRODUCT OF ONE MOL OF UREA AND ONE TO TWO MOLS OF A MONOMERIC SULFONYL COMPOUND HAIVNG FROM ONE TO TWO INTERMEDIATE SULFONYL RADICALS, EACH OF SAID RADICALS BEING LINKED TO A TERMINAL GROUP SELECTED FROM THE CLASS CONSISTING OF VINYL AND MONO-HYDROCARBON-SUBSTITUTED VINYL, AND THEN HEATING THE TREATED MATERIAL IN THE PRESENCE OF AN ALKALINE CATALYST AT A TEMPERATURE IN THE RANGE OF 75* TO 200* C. TO DRY IT AND TO POLYMERIZE THE RESIN-FORMING COMPOUND IN SITU.
Claim 3
Independent Claim
120 words
A METHOD FOR TREATING A CELLULOSIC TEXTILE MATERIAL WHICH CONTAINS A REACTIVE HYDROXYL GROUP TO REDUCE THE WATER RETENTION AND DIFFERENCE IN DRY AND WET EXENSIBILITY THEREOF COMPRISING TREATING SAID CELLULOSIC TEXTILE MATERIAL WITH AN AQUEOUS SOLUTION OF A RESIN-FORMING ADDITION PRODUCT OF ONE MOL OF UREA AND ONE TO TWO MOLS OF A MONOMERIC SULFONYL COMPOUND HAIVNG FROM ONE TO TWO INTERMEDIATE SULFONYL RADICALS, EACH OF SAID RADICALS BEING LINKED TO A TERMINAL GROUP SELECTED FROM THE CLASS CONSISTING OF VINYL AND MONO-HYDROCARBON-SUBSTITUTED VINYL, AND THEN HEATING THE TREATED MATERIAL IN THE PRESENCE OF AN ALKALINE CATALYST AT A TEMPERATURE IN THE RANGE OF 75* TO 200* C. TO DRY IT AND TO POLYMERIZE THE RESIN-FORMING COMPOUND IN SITU.
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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |