METHOD FOR PRODUCING GRAFT POLYMER

摘要

PROBLEM TO BE SOLVED: To reduce an amount of graft polymerization scale without changing an amount of an emulsifying agent used in a process for producing the graft polymer, decreasing the heat stability of the resin and changing a color tone resulting from the reduction. SOLUTION: An emulsion polymerization is carried out in the molar ratio of EDTA/an iron salt used in a redox-based radical initiator of >=4.3.