| abstract |
PROCESS FOR PRODUCING HOLLOW ACRYLIC SYNTHETIC FIBERS BY EXTRUDING A SPINNING SOLUTION OF AN ACRYLIC POLYMER AND A CONCENTRATED AQUEOUS SOLUTION OF AN INORGANIC SALT THROUGH SPINNING ORIFICES INTO AN INERT GASEOUS MEDIUM WHICH IS INCAPABLE OF COAGULATING THE SPINNING SOLUTION, EACH SPINNING ORIFICE HAVING A CONTINUOUS CENTRAL PORTION SUBSTANTIALLY ENCLOSED BY A SLIT (SEE FIGURES) AND COAGULATING THE THUS-FORMED HOLLOW CURRENT OF THE SPINNING SOLUTION WITHIN WHICH IS ENCLOSED THE INERT GAS. |