Methacrylate copolymer having good heat resistance property and pencil hardness property method of preparing the same and resin composition comprising copolymer

摘要

The present invention is based on methylmethacrylate as a main component, which imparts surface hardness and appearance, excellent workability to large area injection molded articles by using styrene, and further increases the surface hardness and heat resistance of the product by using alpha methylstyrene, The impact resistance of a molded product is improved by adding an impact modifier having a core-shell structure having the same refractive index as the prepared copolymer, and the resin composition is used as a substitute for tempered glass in an outer housing of an electrical and electronic product such as a refrigerator, And a resin composition containing the same.