| abstract |
PROBLEM TO BE SOLVED: To provide a flame retardant which exhibits high flame retardancy imparting property, good handleability during kneading and good kneading properties, and shows little deterioration in the molded appearance and physical properties of a thermoplastic resin composition when added. . SOLUTION: (a-1) A composite polymer ((a-1) + (a-2)) comprising an aromatic group-containing polyorganosiloxane and (a-2) a vinyl polymer is added with (a) -3) a flame retardant comprising a graft copolymer (A) obtained by graft polymerization of at least one monomer selected from an aromatic alkenyl compound, a methacrylic acid ester, an acrylic acid ester and a vinyl cyanide compound, and a method for producing the flame retardant; A flame-retardant resin composition containing the same. |