Process for shaping cellulose solutions

D - Textiles – Paper – 01 – F

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D01F 2/00 (2006.01) C08B 16/00 (2006.01)

Patent

CA 1078570

PRECIS DE LA LA DIVULGATION: L'invention concerne un procédé d'obtention d'articles en forme en cellulose. Il consiste en l'extrusion d'une solution contenant au moins 6 % en poids par volume de cellulose dans le dimethylsulfoxyde (DMSO), ladite solution contenant du formal- déhyde dans un rapport formaldéhyde/cellulose compris entre 0,2 et 2 en poids, dans un bain coagulant à base d'eau et de DMSO et contenant de l'ammoniaque ou des sels ammoniacaux. On obtient des articles en forme de filaments, fibres, membranes, fils, films ou feuilles pouvant être utilises notamment dans le domaine textile.

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