ES254304A1 - Perfect procedure for the obtaining of yarns of acrylonitryl polymers (Machine-translation by Google Translate, not legally binding)
- Google Patents
Perfect procedure for the obtaining of yarns of acrylonitryl polymers (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Solutia Inc
Original Assignee
Chemstrand Corp
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Publication date
Application filed by Chemstrand CorpfiledCriticalChemstrand Corp
Publication of ES254304A1publicationCriticalpatent/ES254304A1/en
Improved process for obtaining acrylonitrile polymer yarns, characterized in that it comprises the steps of preparing a solution containing said polymer, the expulsion of the resulting solution to a stream, forming it, through a hole with a certain shape, to a gaseous medium in which only a small amount of the solvent used in the preparation of said solution is evaporated from the stream, in the form of a gas; directing said current through said medium to a coagulating bath comprising a precipitator liquid of the polymer and an extractant for the solvent; stretching the article thus formed in the presence of said liquid in order to lose weight thereto; removing the aforementioned article from said coagulant bath; pass it through a second bath and stretch it in the presence of the liquid contained in this second bath to orient the polymer molecules thereof; and then allow the relaxation of the article and consequently its contraction. (Machine-translation by Google Translate, not legally binding)
ES0254304A1958-12-291959-12-19Perfect procedure for the obtaining of yarns of acrylonitryl polymers (Machine-translation by Google Translate, not legally binding)
ExpiredES254304A1
(en)
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