Patent US2690404A successfully refreshed from Google Patents.
US2690404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making wrinkle resistant fabric and composition therefor
Assignee: Dan River Mills Inc
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Filing: 1954-03-09
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Granted: 1954-09-28
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Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 Spangler Myrtle Joanne
- 👤 Jr Rosser Lee Wayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:11
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
195 words
IN THE PROCESS OF TREATING BLEACHED AND MERCIRIZED COTTON TEXTILE FABRICS WHEREIN FABRIC IS IMPREGNATED WITH AN AQUEOUS SOLUTION CONTAINING A HEAT ACTIVATED ACIDIC CATALYST AND FROM ABOUT 5% TO 20% OF A RESIN-FORMING MATERIAL AND THE IMPREGNATED FABRIC IS HEATED TO DRY THE FABRIC AND CURE THE RESIN, THAT IMPROVEMENT WHICH COMPRISES SUBSTANTIALLY NEUTRALIZING THE ALKALI IN THE FABRIC PRIOR TO COMPLETION OF THE CURE, USING AS THE RESIN-FORMING MATERIAL A POLYMETHYLO MELAMINE AND DIMETHYLOL ETHYLENE UREA IN THE RATIO OF ONE MOL OF THE FROMER TO FROM ABOUT 1 3/4 TO 3 1/4 MOLS OF THE LATTER, AND SAID CURING BEING WITHIN THE RANGE OF ABOUT 1 TO 5 MINUTES AT ABOUT 360* F. FOR THE SHORTER TIME AND 280* F. FOR THE LONGER TIME, AND THE CURING TIME BEING LONG ENOUGH AND THE CURING TEMPERATURE BEING HIGH ENOUGH WITHIN SAID RANGE TO REDUCE THE STRENGTH LOSS OF THE TREATED FABRIC TO ABOUT THAT OF UNTREATED FABRIC WHEN TESTED BY THE AATCC SCORCH TEST METHOD, WHEREBY HIGHLY WRINKLE RESISTANT COTTON FABRIC IS OBTAINED WITH LOW STRENGTH LOSS AND THE TEATED FABRIC IS SUBSTANTIALLY FREE FROM YELLOWING AND ACID DEGRADATION CAUSED BY CHLORINE RETENTION.
Claim 2
Dependent Claim
195 words
IN THE PROCESS OF TREATING BLEACHED AND MERCIRIZED COTTON TEXTILE FABRICS WHEREIN FABRIC IS IMPREGNATED WITH AN AQUEOUS SOLUTION CONTAINING A HEAT ACTIVATED ACIDIC CATALYST AND FROM ABOUT 5% TO 20% OF A RESIN-FORMING MATERIAL AND THE IMPREGNATED FABRIC IS HEATED TO DRY THE FABRIC AND CURE THE RESIN, THAT IMPROVEMENT WHICH COMPRISES SUBSTANTIALLY NEUTRALIZING THE ALKALI IN THE FABRIC PRIOR TO COMPLETION OF THE CURE, USING AS THE RESIN-FORMING MATERIAL A POLYMETHYLO MELAMINE AND DIMETHYLOL ETHYLENE UREA IN THE RATIO OF ONE MOL OF THE FROMER TO FROM ABOUT 1 3/4 TO 3 1/4 MOLS OF THE LATTER, AND SAID CURING BEING WITHIN THE RANGE OF ABOUT 1 TO 5 MINUTES AT ABOUT 360* F. FOR THE SHORTER TIME AND 280* F. FOR THE LONGER TIME, AND THE CURING TIME BEING LONG ENOUGH AND THE CURING TEMPERATURE BEING HIGH ENOUGH WITHIN SAID RANGE TO REDUCE THE STRENGTH LOSS OF THE TREATED FABRIC TO ABOUT THAT OF UNTREATED FABRIC WHEN TESTED BY THE AATCC SCORCH TEST METHOD, WHEREBY HIGHLY WRINKLE RESISTANT COTTON FABRIC IS OBTAINED WITH LOW STRENGTH LOSS AND THE TEATED FABRIC IS SUBSTANTIALLY FREE FROM YELLOWING AND ACID DEGRADATION CAUSED BY CHLORINE RETENTION.
Claim 3
Dependent Claim
25 words
THE PROCESS AS SET FORTH IN CLAIM 1 WHEREIN SAID NEUTRALIZATION IS ACCOMPLISHED BY ACIDIFICATION OF THE FABRIC PRIOR TO IMPREGNATION WITH THE RESIN SOLUTION.
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) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |