US2904387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for crease- and wrinkleproofing cellulosic textile material
Assignee: Olin Corp
•
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
2026-11-09 08:25
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD FOR THE IMPREGNATION OF A TEXTILE FABRICATED FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND REGENERATED CELLULOSE TO RENDER IT RESISTANT TO CREASING AND WRINKLING WHICHINCLUDES THE STEPS OF IMPREGNATING THE TEXTILE WITH 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, SAID REACTION PRODUCT BEING SOLUBLE IN WATER TO EXTENT OF AT LEAST 4 PERFENT, AND HEATING THE IMPREGNATED TEXTILE TO DRY IT AND PROVIDE A TEXTILE RESISTANT TO CREASING AND WRINKLING, R BEING (--CH2--)N WHEREIN N IS 0 TO 5.
Claim 2
Independent Claim
123 words
A METHOD FOR THE IMPREGNATION OF A TEXTILE FABRICATED FROM A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND REGENERATED CELLULOSE TO RENDER IT RESISTANT TO CREASING AND WRINKLING WHICHINCLUDES THE STEPS OF IMPREGNATING THE TEXTILE WITH 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, SAID REACTION PRODUCT BEING SOLUBLE IN WATER TO EXTENT OF AT LEAST 4 PERFENT, AND HEATING THE IMPREGNATED TEXTILE TO DRY IT AND PROVIDE A TEXTILE RESISTANT TO CREASING AND WRINKLING, R BEING (--CH2--)N WHEREIN N IS 0 TO 5.
References Cited (Backward Citations)
US2161808A
Cited
US2317756A
Cited
US2391942A
Cited
US2597467A
Cited
US2509183A
Cited
US2668154A
Cited
US2845400A
Cited
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 |