Copolymer of acrylate modified chlorinated polyolefin and primer coat composition for plastic substrate comprising the same

摘要

The present invention relates to a method for modifying an unmodified chlorinated polyolefin with an acrylic monomer having a tertiary amino group to improve the pigment dispersibility and heat storage property of a paint for use as a binder in an automobile bumper primer coating composition, Modified chlorinated polyolefin resin having improved adhesion at the time of initial adhesion and re-coating by increasing the content of chlorine groups in the coating layer through a coating layer, and a primer coating composition for plastic materials containing the copolymer.