PROCESS FOR PRODUCING METHACRYLIC POLYMER COMPOSITION

摘要

The present invention provides a process for producing a methacrylic polymer composition, which comprises supplying a raw material mixture comprising a raw material monomer containing 50% by weight or more of methyl methacrylate and a polymerization initiator into a reactor of a complete mixing type through a supply port thereof; subjecting to continuous polymerization in the reactor; and taking an obtained polymer composition from an effluent port thereof, wherein a temperature of the raw material mixture supplied into the reactor is -50°C to -10°C. By this, a methacrilic polymer composition suitable for producing a high thermally-stable and heat-resistant resin composition with high quality can be produced.