US2689806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for resin treating wool textile material
Assignee: Pacific Mills
•
Filing: 1953-02-03
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Granted: 1954-09-21
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Expires: 1973-02-03
Abstract
No abstract record available.
Inventors
- 👤 John N Dalton
- 👤 William B Kaupin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
D; D06; D06M; D06M10/00; D06M10/04; D06M10/08; D06M10/10; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2352; Y10T442/2369; Y10T442/2762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
THE METHOD OF TREATING WOOL MATERIAL TO ENHANCE ITS DIMENTIONAL STABILITY UNDER LAUNDERING CONDITIONS WHILE PRESERVING ITS PROPERTIES OF FLEXIBILITY, TENSILE STRENGHT AND SOFT HAND AND FEEL SUBSTANTIALLY EQUAL TO THOSE OF THE UNTREATED WOOL MATERIAL, WHICH COMPRISES IMPREGNATING THE WOOL MATERIAL WITH AN AQUEOUS SOLUTION OF ABOUT 5% TO 10% OF THE WEIGHT OF THE WOOL MATERIAL OF RESIN-FORMING MATERIALS COMPRISING A METHYLOLMELAMINE, AND COVERTING SAID RESINFORMING MATERIALS TO CURED RESINOUS CONDITION, WHILE SAID SOLUTION IS MAINTAINED SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGH THE WHOLE THICKNESS OF THE WOOL MATERIAL, BY EXPOSING THE WET IMPREGNATED MATERIAL TO A HIGH FREQUENCY ELECTRIC FIELD HAVING A FREQUENCY OF THE ORDER OF ABOUT 5 TO 50 MEGACYCLES PER SECOND FOR ABOUT 0.3 TO 5 MINUTES TO HEAT IT SUBSTANTIALLY UNIFORMLY FROM SURFACE TO SURFACE, WHILE MAINTAINING THE LIQUID CONTENT OF THE WOOL MATERIAL ABOVE ABOUT 20% OF THE DRY WEIGHT OF THE WOOL MATERIAL AND MAINTAINING THE EXTERNAL SURFACE TEMPERATURE OF THE WOOL MATERIAL NOT ABOVE 212* F.
Claim 2
Independent Claim
164 words
THE METHOD OF TREATING WOOL MATERIAL TO ENHANCE ITS DIMENTIONAL STABILITY UNDER LAUNDERING CONDITIONS WHILE PRESERVING ITS PROPERTIES OF FLEXIBILITY, TENSILE STRENGHT AND SOFT HAND AND FEEL SUBSTANTIALLY EQUAL TO THOSE OF THE UNTREATED WOOL MATERIAL, WHICH COMPRISES IMPREGNATING THE WOOL MATERIAL WITH AN AQUEOUS SOLUTION OF ABOUT 5% TO 10% OF THE WEIGHT OF THE WOOL MATERIAL OF RESIN-FORMING MATERIALS COMPRISING A METHYLOLMELAMINE, AND COVERTING SAID RESINFORMING MATERIALS TO CURED RESINOUS CONDITION, WHILE SAID SOLUTION IS MAINTAINED SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGH THE WHOLE THICKNESS OF THE WOOL MATERIAL, BY EXPOSING THE WET IMPREGNATED MATERIAL TO A HIGH FREQUENCY ELECTRIC FIELD HAVING A FREQUENCY OF THE ORDER OF ABOUT 5 TO 50 MEGACYCLES PER SECOND FOR ABOUT 0.3 TO 5 MINUTES TO HEAT IT SUBSTANTIALLY UNIFORMLY FROM SURFACE TO SURFACE, WHILE MAINTAINING THE LIQUID CONTENT OF THE WOOL MATERIAL ABOVE ABOUT 20% OF THE DRY WEIGHT OF THE WOOL MATERIAL AND MAINTAINING THE EXTERNAL SURFACE TEMPERATURE OF THE WOOL MATERIAL NOT ABOVE 212* F.
References Cited (Backward Citations)
US2405037A
Cited
US2545450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |