Patent US2904388A successfully refreshed from Google Patents.
US2904388A
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Composition and process for crease-and wrinkleproofing cellulosic textile material
Assignee: Olin Corp
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Filing: 1958-04-28
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Granted: 1959-09-15
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Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Holbrook
- 👤 Richard L Doerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:25
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD FOR THE IMPREGNATION OF A TEXTILE FABRICATED FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND REGENERATED CALLULOSE TO RENDER IT RESISTANT TO CREASING AND WRINKLING WHICH INCLUDES THE STEPS OF IMPREGNATING THE TEXTILE WITH A SOLUTION OF A REACTION PRODUCT OF FORMALDEHYDE AND A DIHYDRAZIDE OF THE FORMULA R(CONHNH2)2 OBTAINED BY REACTING FORMALDEHYDE AND THE DIHYDRAZIDE AT A PH OF FROM 6 TO 11 IN A MOLAR RATIO OF FORMALDEHYDE TO THE DIHYDRAZIDE WITHIN THE RANGE FROM 4 TO 20, THE SAID REACTION PRODUCT BEING SOLUBLE IN WATER TO EXTENT OF AT LEAST 2 PERCENT, AND HEATING THE IMPREGNATED TEXTILE TO DRY IT AND TO PROVIDE A TEXTILE RESISTANT TO CREASING AND WRINKLING, R BEING AN ALKYLENE GROUP CONTAINING FROM 2 TO 6 CARBON ATOMS INTERRUPTED BY FROM 1 TO 2 ATOMS SELECTED FROM THE GROUP CONSISTING OF OXYGEN ATOMS AND SULFUR ATOMS.
Claim 2
Independent Claim
148 words
A METHOD FOR THE IMPREGNATION OF A TEXTILE FABRICATED FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND REGENERATED CALLULOSE TO RENDER IT RESISTANT TO CREASING AND WRINKLING WHICH INCLUDES THE STEPS OF IMPREGNATING THE TEXTILE WITH A SOLUTION OF A REACTION PRODUCT OF FORMALDEHYDE AND A DIHYDRAZIDE OF THE FORMULA R(CONHNH2)2 OBTAINED BY REACTING FORMALDEHYDE AND THE DIHYDRAZIDE AT A PH OF FROM 6 TO 11 IN A MOLAR RATIO OF FORMALDEHYDE TO THE DIHYDRAZIDE WITHIN THE RANGE FROM 4 TO 20, THE SAID REACTION PRODUCT BEING SOLUBLE IN WATER TO EXTENT OF AT LEAST 2 PERCENT, AND HEATING THE IMPREGNATED TEXTILE TO DRY IT AND TO PROVIDE A TEXTILE RESISTANT TO CREASING AND WRINKLING, R BEING AN ALKYLENE GROUP CONTAINING FROM 2 TO 6 CARBON ATOMS INTERRUPTED BY FROM 1 TO 2 ATOMS SELECTED FROM THE GROUP CONSISTING OF OXYGEN ATOMS AND SULFUR ATOMS.
References Cited (Backward Citations)
US2161808A
Cited
US2317756A
Cited
US2391942A
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US2597467A
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US2509183A
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US2668154A
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US2845400A
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |