PURPOSE: To obtain a methacrylic ester polymer continuously and advantageously from the viewpoint of energy consumption as compared with conventional processes.
CONSTITUTION: A process for producing a methacrylic ester polymer by a high- velocity living polymerization in which the conversion of monomer reaches 90% or higher within 1 min, wherein a monomer, a solvent, an initiator and a catalyst are grouped into two liquids in such a combination as to prevent polymerization, the liquids are passed without contact with each other through the inner path and the outer path respectively of a double-walled flow channel in the form of concentric circles and continuously supplied to a nozzle at the outlet where they collide with each other and are mixed, and polymerization is allowed to proceed in an inert gas atmosphere provided below the nozzle.
MIZOTA HIROTOSHI
MURAKAMI TOMONARI
