Patent US2957746A successfully refreshed from Google Patents.
US2957746A
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Process of inducing a crease into creaseproofed cellulose fabrics by treating with an acid catalyst and hot pressing a crease in the treated area
Assignee: National Cotton Council of America
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Filing: 1957-01-11
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Granted: 1960-10-25
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Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Jr George S Buck
- 👤 Nelson F Getchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:49
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
151 words
THE METHOD OF FORMING A DURABLE CREASE IN A COTTON FABRIC MADE CREASE-RESISTANT BY TREATMENT WITH AN ACIDIC CATALYST AND A CHEMICAL AGENT SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE, MELAMINE-FORMALDEHYDE AND CYCLIC ETHYLENE UREA-FORMALDEHYDE, WHICH AGENT REACTS WITH THE CELLULOSE MOLECULES OF THE FABRIC TO FORM A CHEMICAL BOND THEREWITH COMPRISING WETTING THE AREA OF SAID FABRIC ALONG WHICH SAID CREASE IS TO BE FORMED WITH AN AQUEOUS ACDIC CATALYST SOLUTION UNDER TREATMENT CONDITIONS WHICH BREAK THE CHEMICAL BONDS BETWEEN SAID FABRIC AND SAID AGENT TO DESTROY THE CREASE-RESISTANCE OF SAID FABRIC IN SAID WETTED AREA, FOLDING SAID FABRIC ALONG SAID WETTED AREA TO FORM A FOLD AND APPLYING HEAT AND PRESSURE TO SAID FOLD UNTIL SAID WETTED AREA IS DRY AND THE CHEMICAL BONDS BETWEEN THE CELLULOSE AND SAID CHEMICAL AGENT ARE REFORMED, SAID ACID CATALYST IN SAID AQUEOUS SOLUTION CATALYZING THE REACTION TO FORM THE AFORESAID CHEMICAL BONDS.
Claim 2
Independent Claim
151 words
THE METHOD OF FORMING A DURABLE CREASE IN A COTTON FABRIC MADE CREASE-RESISTANT BY TREATMENT WITH AN ACIDIC CATALYST AND A CHEMICAL AGENT SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE, MELAMINE-FORMALDEHYDE AND CYCLIC ETHYLENE UREA-FORMALDEHYDE, WHICH AGENT REACTS WITH THE CELLULOSE MOLECULES OF THE FABRIC TO FORM A CHEMICAL BOND THEREWITH COMPRISING WETTING THE AREA OF SAID FABRIC ALONG WHICH SAID CREASE IS TO BE FORMED WITH AN AQUEOUS ACDIC CATALYST SOLUTION UNDER TREATMENT CONDITIONS WHICH BREAK THE CHEMICAL BONDS BETWEEN SAID FABRIC AND SAID AGENT TO DESTROY THE CREASE-RESISTANCE OF SAID FABRIC IN SAID WETTED AREA, FOLDING SAID FABRIC ALONG SAID WETTED AREA TO FORM A FOLD AND APPLYING HEAT AND PRESSURE TO SAID FOLD UNTIL SAID WETTED AREA IS DRY AND THE CHEMICAL BONDS BETWEEN THE CELLULOSE AND SAID CHEMICAL AGENT ARE REFORMED, SAID ACID CATALYST IN SAID AQUEOUS SOLUTION CATALYZING THE REACTION TO FORM THE AFORESAID CHEMICAL BONDS.
Claim 3
Dependent Claim
50 words
THE METHOD OF FORMING A DURABLE CREASE IN A COTTON FABRIC AS DEFINED IN CLAIM 1 WHEREIN SAID AQUEOUS ACIDIC SOLUTION CONTAINS FROM 1 TO 30 PARTS BY WEIGHT OF SAID SOLUTION OF A CREASE-RESISTANCE IMPARTING CHEMICAL AGENT SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE, MELAMINE-FORMALDEHYDE, AND CYCLIC ETHYLENE UREA-FORMALDEHYDE.
References Cited (Backward Citations)
USRE16423E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |