ASA COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION

摘要

The present invention relates to an acrylate-styrene-acrylonitrile polymer, to a manufacturing method thereof and to a thermoplastic resin composition. More particularly, the present invention has an effect of providing an acrylate-styrene-acrylonitrile polymer, a manufacturing method thereof and a thermoplastic resin composition, wherein an N-vinyl monomer is applied so that polymerization can be initiated by a redox system under the conditions of not using a grafting agent thereby improving the grafting efficiency of the acrylate-styrene-acrylonitrile polymer and thus improving powder characteristics and impact resistance while maintaining dyeability; the content of free shells is lowered to improve coagulation and latex stability; and the polymerization is performed by the redox system without an activation liquid of a shell layer, thereby reducing additives and thus improving pigment dyeability and significantly improving weather resistance. The acrylate-styrene-acrylonitrile polymer according to the present invention comprises an acrylic rubber core; and a styrene-acrylonitrile copolymer-based shell.