Disclosed is an ABS-based resin composition, a method of preparing the same, and a molded article including the same, including an ABS-based resin composition including 100 parts by weight of a base resin including 20 to 40% by weight of a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer and 60 to 80% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer; and 0.1 to 5 parts by weight of a polyether-modified polysiloxane, a method of preparing the ABS-based resin composition, and a molded article including the ABS-based resin composition.

Disclosed is an ABS-based resin composition, a method of preparing the same, and a molded article including the same, including an ABS-based resin composition including 100 parts by weight of a base resin including 20 to 40% by weight of a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer and 60 to 80% by weight of an aromatic vinyl compound-vinyl cyanide compound copolymer; and 0.1 to 5 parts by weight of a polyether-modified polysiloxane, a method of preparing the ABS-based resin composition, and a molded article including the ABS-based resin composition.

The present invention provides a maleimide-based copolymer, a method for producing same, and a resin composition obtained using same. This maleimide-based copolymer contains 40-60 mass % of aromatic vinyl monomer units, 5-20 mass % of vinyl cyanide monomer units, and 35-50 mass % of maleimide monomer units, and is such that a 4 mass % tetrahydrofuran solution of the copolymer has a transmittance of 90% or more for light having a wavelength of 450 nm at an optical path length of 10 mm, and the residual maleimide-based monomer amount is less than 300 ppm. This maleimide-based copolymer preferably further contains 0-10 mass % of unsaturated dicarboxylic acid anhydride monomer units, and preferably has a glass transition temperature of 165° C. or higher.

The present invention provides a maleimide-based copolymer, a method for producing same, and a resin composition obtained using same. This maleimide-based copolymer contains 40-60 mass % of aromatic vinyl monomer units, 5-20 mass % of vinyl cyanide monomer units, and 35-50 mass % of maleimide monomer units, and is such that a 4 mass % tetrahydrofuran solution of the copolymer has a transmittance of 90% or more for light having a wavelength of 450 nm at an optical path length of 10 mm, and the residual maleimide-based monomer amount is less than 300 ppm. This maleimide-based copolymer preferably further contains 0-10 mass % of unsaturated dicarboxylic acid anhydride monomer units, and preferably has a glass transition temperature of 165° C. or higher.

A thermoplastic resin composition includes a first copolymer including a conjugated diene-based polymer, a unit derived from an aromatic vinyl-based monomer, and a unit derived from a vinyl cyan-based monomer; a second copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer; and, with respect to 100 parts by weight of the sum of the first copolymer and the second copolymer, 2.0 to 10 parts by weight of a third copolymer having a soft segment including a unit derived from a polyalkylene glycol and a hard segment including unit derived from an aromatic dicarboxylic acid or aromatic dicarboxylate and a unit derived from a linear aliphatic diol; and 2.5 to 10 parts by weight of a fourth copolymer including an aromatic dicarboxylic acid-derived unit, a unit derived from a linear aliphatic diol, and a unit derived from a cyclic aliphatic diol.

A thermoplastic resin composition includes a first copolymer including a conjugated diene-based polymer, a unit derived from an aromatic vinyl-based monomer, and a unit derived from a vinyl cyan-based monomer; a second copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer; and, with respect to 100 parts by weight of the sum of the first copolymer and the second copolymer, 2.0 to 10 parts by weight of a third copolymer having a soft segment including a unit derived from a polyalkylene glycol and a hard segment including unit derived from an aromatic dicarboxylic acid or aromatic dicarboxylate and a unit derived from a linear aliphatic diol; and 2.5 to 10 parts by weight of a fourth copolymer including an aromatic dicarboxylic acid-derived unit, a unit derived from a linear aliphatic diol, and a unit derived from a cyclic aliphatic diol.

A thermoplastic resin composition includes a first copolymer including a conjugated diene-based polymer, a unit derived from an aromatic vinyl-based monomer, and a unit derived from a vinyl cyan-based monomer; a second copolymer including a unit derived from an aromatic vinyl-based monomer and a unit derived from a vinyl cyan-based monomer; and, with respect to 100 parts by weight of the sum of the first copolymer and the second copolymer, 2.0 to 10 parts by weight of a third copolymer having a soft segment including a unit derived from a polyalkylene glycol and a hard segment including unit derived from an aromatic dicarboxylic acid or aromatic dicarboxylate and a unit derived from a linear aliphatic diol; and 2.5 to 10 parts by weight of a fourth copolymer including an aromatic dicarboxylic acid-derived unit, a unit derived from a linear aliphatic diol, and a unit derived from a cyclic aliphatic diol.

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.

Provided is a thermoplastic resin composition which includes: a graft copolymer prepared by graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer having an average particle diameter of 50.0 to 90.0 nm; a matrix copolymer including a C.sub.1-C.sub.3 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit and a vinyl cyan-based monomer unit; and an additive including a polymer including a C.sub.1-C.sub.3 alkyl (meth)acrylate-based monomer unit, specifically, a thermoplastic resin composition which has improved properties in terms of elongation, processability, weather resistance, colorability, hardness, chemical resistance, scratch resistance, a whitening phenomenon, surface gloss and appearance quality while having excellent basic properties.