Patent US3143437A successfully refreshed from Google Patents.
US3143437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polyacrylonitrile textile materials
Assignee: Crylor SA
•
Filing: 1960-01-27
•
Granted: 1964-08-04
•
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
2026-11-04 22:11
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)
CA571376A
Cited
US2245708A
Cited
US2302332A
Cited
US2404713A
Cited
US2649427A
Cited
US2628172A
Cited
US2686136A
Cited
US2787606A
Cited
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 |