Continuous process for preparing a spinning solution of acrylic

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

1974-06-05

1976-06-29

Woo, Jay H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

264182, C08K 517, D01F 618

Patent

active

039666662

ABSTRACT:
Continuous process for preparing a spinning solution of acrylic polymeric material. Process utilizes acrylic polymers obtained in a bulk polymerization slurry, and comprises adding a solvent such as dimethylacetamide to the slurry in such quantity as to be insufficient to attack and dissolve the polymer, bringing the resulting mixture to a temperature not exceeding 170.degree.C, such temperature being such as to not result in any appreciable attack of the polymer by the solvent, removing unreacted monomer by vacuum adiabatic evaporation, and then heating to a temperature not exceeding 170.degree.C, such temperature being sufficiently high to result in solvent attack and dissolution of the polymer.

REFERENCES:
patent: 3075934 (1963-01-01), Grandine et al.
patent: 3397262 (1968-08-01), Stoy et al.
patent: 3630986 (1971-12-01), Mison et al.
patent: 3687918 (1972-08-01), Calurdann
patent: 3697472 (1972-10-01), Champ et al.
patent: 3787365 (1974-01-01), Melacini et al.

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