| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a methacrylic polymer composition which can more efficiently produce a polymer composition suitable for obtaining a high-quality resin composition having high thermal stability and heat resistance.SOLUTION: In a method for producing a methacrylic polymer composition, a raw material mixture comprising a raw material monomer containing 50 mass% or more of a methyl methacrylate and a polymerization initiator is supplied from a supply port of a complete mixing type reaction tank to be subjected to continuous polymerization in the reaction tank, a polymer composition obtained by the continuous polymerization is extracted from an extraction port, and the temperature of the raw material mixture supplied to the reaction tank is from -50 to -10°C. |
