Disclosed are nitrile-vinylidene substituted aromatic polymers which include less than about 250 ppm of vinylidene substituted aromatic monomer. Also disclosed is a method of minimizing nitrile migration in nitrile-vinylidene substituted aromatic polymers where the amount of residual vinylidene substituted aromatic monomer in the nitrile-vinylidene substituted aromatic polymer is reduced. Also disclosed is a method of making nitrile-vinylidene substituted aromatic polymers which includes less than about 250 ppm of styrene monomer.

Disclosed are nitrile-vinylidene substituted aromatic polymers which include less than about 250 ppm of vinylidene substituted aromatic monomer. Also disclosed is a method of minimizing nitrile migration in nitrile-vinylidene substituted aromatic polymers where the amount of residual vinylidene substituted aromatic monomer in the nitrile-vinylidene substituted aromatic polymer is reduced. Also disclosed is a method of making nitrile-vinylidene substituted aromatic polymers which includes less than about 250 ppm of styrene monomer.

Disclosed are nitrile-vinylidene substituted aromatic polymers which include less than about 250 ppm of vinylidene substituted aromatic monomer. Also disclosed is a method of minimizing nitrile migration in nitrile-vinylidene substituted aromatic polymers where the amount of residual vinylidene substituted aromatic monomer in the nitrile-vinylidene substituted aromatic polymer is reduced. Also disclosed is a method of making nitrile-vinylidene substituted aromatic polymers which includes less than about 250 ppm of styrene monomer.

A thermoplastic resin composition includes: a polycarbonate resin (I); a specific graft copolymer (II); a vinyl copolymer (III); an inorganic filler (IV); and a phosphate ester compound (V). The vinyl-based copolymer (III) has a weight average molecular weight of 110,000 or less. A ratio of a melt flow rate of the vinyl-based copolymer (III) to a melt flow rate of the polycarbonate resin (I) is 7 or more and 12 or less. A blending amount of the phosphoric acid ester-based compound (V) is 1 to 10 parts by weight with respect to 100 parts by weight of a total amount of (I) to (IV).

A thermoplastic resin composition includes: a polycarbonate resin (I); a specific graft copolymer (II); a vinyl copolymer (III); an inorganic filler (IV); and a phosphate ester compound (V). The vinyl-based copolymer (III) has a weight average molecular weight of 110,000 or less. A ratio of a melt flow rate of the vinyl-based copolymer (III) to a melt flow rate of the polycarbonate resin (I) is 7 or more and 12 or less. A blending amount of the phosphoric acid ester-based compound (V) is 1 to 10 parts by weight with respect to 100 parts by weight of a total amount of (I) to (IV).

The present invention relates to a method for preparing an ABS graft copolymer. According to the present invention, provided is a method for preparing an ABS graft copolymer capable of improving surface gloss by inducing the formation of bimodal particles through the formation of existing ABS resin particles and ABS resin particles having a relatively small diameter.

The present invention relates to a method for preparing an ABS graft copolymer. According to the present invention, provided is a method for preparing an ABS graft copolymer capable of improving surface gloss by inducing the formation of bimodal particles through the formation of existing ABS resin particles and ABS resin particles having a relatively small diameter.

The present invention relates to a method of preparing a thermoplastic resin. In accordance with the present invention, provided is a thermoplastic resin having superior antibiosis and melt-kneadability prepared through preparation of a graft copolymer latex and coagulation of the graft copolymer latex with a specific antimicrobial agent, and a method of preparing the thermoplastic resin to prepare a thermoplastic resin composition including the thermoplastic resin.

The present invention relates to a method of preparing a thermoplastic resin. In accordance with the present invention, provided is a thermoplastic resin having superior antibiosis and melt-kneadability prepared through preparation of a graft copolymer latex and coagulation of the graft copolymer latex with a specific antimicrobial agent, and a method of preparing the thermoplastic resin to prepare a thermoplastic resin composition including the thermoplastic resin.

Disclosed are a rubber polymer, a graft copolymer, methods of preparing the same, and an impact and heat resistant resin composition. According to the present invention, provided are rubber latex and a graft copolymer which may realize a product having superior impact resistance, heat resistance and chemical resistance by adding a specific crosslinking regulator to the rubber polymer, methods of preparing the same, and an impact and heat resistant resin composition.