US3143437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polyacrylonitrile textile materials
Assignee: Crylor SA
•
Filing: 1960-01-27
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Granted: 1964-08-04
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Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Rosset Jean Baptiste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:27
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/01; D06M15/03; D06M15/05; D06M15/07; D06M15/31; D06M15/327; D06M15/333
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR THE TREATMENT OF ACRYLONITRILE POLYMER TEXTILE FABRICS TO IMPART A PERMANENT FINISH THERETO, WHICH COMPRISES SUBJECTING TEXTILE FABRICS FORMED OF A POLYMER CONTAINING AT LEAST 85% OF ACRYLONITRILE TO IMPREGNATION WITH A SOLUTION OF A THERMOPLASTIC POLYMER IN A LIQUID AT A TEMPERATURE AT WHICH THE LIQUID IS A NON-SOLVENT FOR THE TEXTILE FABRICS AND DRYING THE TEXTILE FABRICS AT A TEMPERATURE AT WHICH THE LIQUID IS A SOLVENT, THEREFOR, THEREBY COATING THE FIBRES OF WHICH THE FABRIC IS COMPOSED WITH THE SAID THERMOPLASTIC POLYMER.
Claim 2
Dependent Claim
88 words
A PROCESS FOR THE TREATMENT OF ACRYLONITRILE POLYMER TEXTILE FABRICS TO IMPART A PERMANENT FINISH THERETO, WHICH COMPRISES SUBJECTING TEXTILE FABRICS FORMED OF A POLYMER CONTAINING AT LEAST 85% OF ACRYLONITRILE TO IMPREGNATION WITH A SOLUTION OF A THERMOPLASTIC POLYMER IN A LIQUID AT A TEMPERATURE AT WHICH THE LIQUID IS A NON-SOLVENT FOR THE TEXTILE FABRICS AND DRYING THE TEXTILE FABRICS AT A TEMPERATURE AT WHICH THE LIQUID IS A SOLVENT, THEREFOR, THEREBY COATING THE FIBRES OF WHICH THE FABRIC IS COMPOSED WITH THE SAID THERMOPLASTIC POLYMER.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |