| abstract |
Method for producing a methacrylic resin according to the present invention is a monomer mixture containing alkyl methacrylate, (meth) acrylic acid and alkyl acrylate, a radical initiator and a molecular weight regulator are mixed, the mixture is put into a reactor and polymerized, Adding the polymer to a first devolatilization tank to remove unreacted monomers firstly, and subsequently adding a second devolatilization tank to remove unreacted monomers secondly. The manufacturing method produces methacrylic resin having excellent heat resistance and optical properties with high productivity. |