ES313071A1 - Perfected procedure for the preparation of thread solutions. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Perfected procedure for the preparation of thread solutions. (Machine-translation by Google Translate, not legally binding)
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SNIA Viscosa SpA
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SNIA Viscosa SpA
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Publication of ES313071A1publicationCriticalpatent/ES313071A1/en
Improved process for the preparation of spinnable solutions, of polymers and copolymers with a high polyacrylonitrile content, of no more than 85%, by direct preparation of the polymer or copolymer solution starting from a mass including acrylonitrile in dimethylformamide, and preferably in association with other monomers, such as methyl methacrylate and sodium allylsulfonate, characterized by the fact that, under controlled temperature conditions, the process of polymerizing a mass containing a relatively high amount of monomer or monomers and stopping such a process is initiated only when a part of the aforementioned monomer or monomers has been converted, so that a suitable spinning solution is obtained for the formation of improved yarns in terms of their molecular weight and in regard to their whiteness characteristics. (Machine-translation by Google Translate, not legally binding)
ES0313071A1964-05-191965-05-18Perfected procedure for the preparation of thread solutions. (Machine-translation by Google Translate, not legally binding)
ExpiredES313071A1
(en)
Procedure for the production of synthetic fibers of polyacrilonitrile starting from acrylonitryl monomer. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of hilable polymer compositions with high carbon black content. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of threads and fibers by hilature of sulfuric solutions of polymerized acrylonitril (Machine-translation by Google Translate, not legally binding)
A procedure for improving textile properties, especially the abrasion resistance, of polyacrylonitril threads or their mixed polymerized (Machine-translation by Google Translate, not legally binding)