US2859136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of fabrics with resinous condensation products
Assignee: Tootal Broadhurst Lee Co Ltd
•
Filing: 1955-08-22
•
Granted: 1958-11-04
•
Expires: 1975-08-22
Abstract
No abstract record available.
Inventors
- 👤 Marsh John Thompson
- 👤 Blease Ronald Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PROCESS OF GIVING INCREASED ABRASION RESISTANCE TO A TEXTILE FABRIC CONTAINING AT LEAST 50% OF REGENERATED CELLULOSE BY INSOLUBILISING IN THE FIBERS THEREOF, BY HEATING, A RESIN SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE WHEREIN THE MOLECULAR RATIO OF FORMALDEHYDE TO UREA IS FROM 2:1 TO 4:1, MELAMINE-FORMALDEHYDE WHEREIN THE MOLECULAR RATIO OF FORMALDEHYDE TO MELAMINE IS GREATER THAN 3:1 AND UP TO 6:1, AND A MIXTURE OF SAID UREA-FORMALDEHYDE MELAMINE-FORMALDEHYDE RESINS, WHICH PROCESS COMPRISES THE STEPS OF IMPREGNATING SAID FABRIC WITH AN AQUEOUS SOLUTION CONTAINING WATER-SOLUBLE INGREDIENTS FOR FORMING SAID RESIN, SAID SOLUTION ALSO CONTAINING AN ACID CATALYST FOR THE RESIN FORMATION, DRYING THE FABRIC AND HEATING IT TO PRODUCE SAID WATER-INSOLUBLE RESIN FROM SAID RESIN-FORMING INGREDIENTS IN AN ATMOSPHERE WHEREIN AT LEAST 50% OF SAID ATMOSPHERE IS SUPERHEATED STEAM.
Claim 2
Dependent Claim
132 words
A PROCESS OF GIVING INCREASED ABRASION RESISTANCE TO A TEXTILE FABRIC CONTAINING AT LEAST 50% OF REGENERATED CELLULOSE BY INSOLUBILISING IN THE FIBERS THEREOF, BY HEATING, A RESIN SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE WHEREIN THE MOLECULAR RATIO OF FORMALDEHYDE TO UREA IS FROM 2:1 TO 4:1, MELAMINE-FORMALDEHYDE WHEREIN THE MOLECULAR RATIO OF FORMALDEHYDE TO MELAMINE IS GREATER THAN 3:1 AND UP TO 6:1, AND A MIXTURE OF SAID UREA-FORMALDEHYDE MELAMINE-FORMALDEHYDE RESINS, WHICH PROCESS COMPRISES THE STEPS OF IMPREGNATING SAID FABRIC WITH AN AQUEOUS SOLUTION CONTAINING WATER-SOLUBLE INGREDIENTS FOR FORMING SAID RESIN, SAID SOLUTION ALSO CONTAINING AN ACID CATALYST FOR THE RESIN FORMATION, DRYING THE FABRIC AND HEATING IT TO PRODUCE SAID WATER-INSOLUBLE RESIN FROM SAID RESIN-FORMING INGREDIENTS IN AN ATMOSPHERE WHEREIN AT LEAST 50% OF SAID ATMOSPHERE IS SUPERHEATED STEAM.
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US2190672A
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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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |