THERMOPLASTIC RESIN COMPOSITION

摘要

The invention aims at providing a thermoplastic resin composition which is improved in impact strength and resistances to hydrolysis and thermal discoloration without impairing the characteristics inherent in a thermoplastic resin. The resin composition comprises 70 to 99 % by mass of (A) a thermoplastic resin comprising a polycarbonate resin as the essential component and 1 to 30 % by mass of (B) a graft copolymer which is obtained by emulsion graft polymerization of a monomer selected from among alkyl methacrylates or a monomer mixture comprising at least an alkyl methacrylate in the presence of a latex containing a butadiene rubbery polymer with 0.05 to 10 parts by mass of sodium alkyl diphenyl ether disulfonate per 100 parts by mass of the graft copolymer and which contains the butadiene rubbery polymer in an amount of 55 to 90 % by mass.