Continuous process for preparing a spinning solution of...

Details Continuous process for preparing a spinning solution of... Continuous process for preparing a spinning solution of...

D - Textiles, Paper

01

F

20/113, 400/9147

D01F 6/38 (2006.01) C08J 3/09 (2006.01) D01F 1/02 (2006.01)

Patent

CA 1037632

ABSTRACT Continuous method for preparin? a spinning solution of acrylic polymeric material. Method utilizes acrylic polymers obtained in bulk polymerization slurry, and comprises adding solvent such as dimethylacetamide to slurry in such quantity as to be insufficient to attack and dissolve the polymer, bringing the resulting mixture to a temperature not exceeding 170°C, such temperature being such as to not result in appre- cisble attach of the polymer by the solvent, removing unreacted monomer by vacuum adiabatic evaporation, and then heating to a temperature not exceeding 170°C, such temperature being sufficient high to result in solvent attack and dissolution of the polymer.

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