| abstract |
The present invention provides a maleimide-based copolymer, a method for preparing the same, and a resin composition using the same. 40 to 60 mass % of aromatic vinyl monomer units, 5 to 20 mass % of vinyl cyanide monomer units, 25 to 50 mass % of maleimide monomer units, 0.1 to 10 mass % of dicarboxylic acid anhydride monomer units, and a glass transition temperature of 165 ° C. The above, the maleimide-based copolymer having 1 to 30 dicarboxylic acid anhydride monomer units contained in one molecule of the copolymer. In addition, it is obtained by kneading a maleimide-based copolymer and one or two or more resins selected from ABS resin, ASA resin, AES resin, and SAN resin, and has a good balance of properties of surface gloss, heat resistance, impact resistance, and fluidity. An excellent resin composition is provided. |