A thermoplastic resin composition including 100 parts by weight of a base resin including 0.5 to 45% by weight of a graft copolymer (A-1) including acrylate rubber having an average particle diameter of 50 to 150 nm, an aromatic vinyl compound, and a vinyl cyanide compound, 20 to 80% by weight of a graft copolymer (A-2) including acrylate rubber having an average particle diameter of 151 to 600 nm, an aromatic vinyl compound, and a vinyl cyanide compound, and 10 to 45% by weight of an α-methylstyrene-based copolymer (B) having a weight average molecular weight of 60,000 to 180,000 g/mol; and 0.5 to 10 parts by weight of an ultra-high molecular weight copolymer (C) having a weight average molecular weight of 1,000,000 to 12,000,000 g/mol. A method of preparing the thermoplastic resin composition and a molded article including the thermoplastic resin composition are also disclosed.

The present disclosure relates to a thermoplastic resin having excellent non-whitening properties, impact strength, gloss, and fluidity, and a method of preparing the thermoplastic resin. The thermoplastic resin includes an alkyl acrylate-alkyl methacrylate graft copolymer (A), or the copolymer (A) and a matrix resin (B) including an alkyl methacrylate polymer and/or an alkyl methacrylate-alkyl acrylate copolymer. A transparency of the thermoplastic resin having a thickness of 0.15 mm is less than 2, a total content of the alkyl acrylate in the thermoplastic resin is 20 to 50% by weight, and a butyl acrylate coverage value (X) as calculated by Equation 1 below is 50 or more:

X={(G−Y)/Y}×100,  [Equation 1] wherein G represents a total gel content (%) of the thermoplastic resin, and Y represents a content (% by weight) of butyl acrylate in the gel of the thermoplastic resin.

The present disclosure relates to a thermoplastic resin having excellent non-whitening properties, impact strength, gloss, and fluidity, and a method of preparing the thermoplastic resin. The thermoplastic resin includes an alkyl acrylate-alkyl methacrylate graft copolymer (A), or the copolymer (A) and a matrix resin (B) including an alkyl methacrylate polymer and/or an alkyl methacrylate-alkyl acrylate copolymer. A transparency of the thermoplastic resin having a thickness of 0.15 mm is less than 2, a total content of the alkyl acrylate in the thermoplastic resin is 20 to 50% by weight, and a butyl acrylate coverage value (X) as calculated by Equation 1 below is 50 or more:

X={(G−Y)/Y}×100,  [Equation 1] wherein G represents a total gel content (%) of the thermoplastic resin, and Y represents a content (% by weight) of butyl acrylate in the gel of the thermoplastic resin.

Disclosed are a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. The thermoplastic resin composition includes 3 to 22% by weight of a graft copolymer (A-1) including an acrylate-based rubber having an average particle diameter of 200 to 400 nm, an aromatic vinyl compound, and a vinyl cyanide compound; 17 to 40% by weight of a graft copolymer (A-2) including an acrylate-based rubber having an average particle diameter of 50 to 199 nm, an aromatic vinyl compound, and a vinyl cyanide compound; 30 to 57% by weight of a copolymer (B) including a (meth)acrylic acid alkyl ester compound, an α-methyl styrene-based compound, and a vinyl cyanide compound; and 6 to 30% by weight of a polymethacrylate resin (C) (except for α-methyl styrene), wherein an average multi-axial impact strength is 22 J/mm or more.

A thermoplastic resin composition and a molded article including the same are disclosed in which the thermoplastic resin composition includes 100 parts by weight of a base resin including an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer; and 0.5 to 10 parts by weight of a matting agent having a refractive index of 1.46 to 1.53, and a molded article including the thermoplastic resin composition, wherein the thermoplastic resin composition satisfies Equations 1 and 2 below:

G≤20,  [Equation 1] wherein G denotes the gloss of a sheet having a size of 0.15 T as measured at 60° using a gloss meter,

Hz<Tt,  [Equation 2] wherein Hz and Tt denote the haze (%) and total light transmittance (%) of a sheet having a size of 0.15 T, respectively.

A graft copolymer (B) produced by graft polymerization of a vinyl monomer mixture (m1) including an alkyl (meth)acrylate ester onto a copolymer (A), the copolymer (A) being a copolymer of an alkyl (meth)acrylate ester (Aa) and a (meth)acrylate ester (Ab) including an aromatic hydrocarbon group. A thermoplastic resin composition including the graft copolymer (B), a copolymer (C) that is the product of a polymerization reaction of a vinyl monomer mixture (m2) including an alkyl (meth)acrylate ester, and a molded article produced by molding the thermoplastic resin composition. Provided are the graft copolymer with which a thermoplastic resin composition excellent in terms of transparency, impact resistance, weather resistance, and flowability may be produced, a thermoplastic resin composition including the graft copolymer, and the molded article produced by molding the thermoplastic resin composition.

A graft copolymer (B) produced by graft polymerization of a vinyl monomer mixture (m1) including an alkyl (meth)acrylate ester onto a copolymer (A), the copolymer (A) being a copolymer of an alkyl (meth)acrylate ester (Aa) and a (meth)acrylate ester (Ab) including an aromatic hydrocarbon group. A thermoplastic resin composition including the graft copolymer (B), a copolymer (C) that is the product of a polymerization reaction of a vinyl monomer mixture (m2) including an alkyl (meth)acrylate ester, and a molded article produced by molding the thermoplastic resin composition. Provided are the graft copolymer with which a thermoplastic resin composition excellent in terms of transparency, impact resistance, weather resistance, and flowability may be produced, a thermoplastic resin composition including the graft copolymer, and the molded article produced by molding the thermoplastic resin composition.

Provided is a thermoplastic resin composition which includes: a first graft copolymer including a C.sub.4 to C.sub.10 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a vinyl cyan-based monomer unit; a second graft copolymer including a C.sub.4 to C.sub.10 alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a vinyl cyan-based monomer unit; and a first styrene-based copolymer being a copolymer of a monomer mixture including a C.sub.1 to C.sub.3 alkyl-substituted styrene-based monomer, a vinyl cyan-based monomer, and a C.sub.1 to C.sub.3 alkyl (meth)acrylate-based monomer, wherein the first graft copolymer and the second graft copolymer have cores having mutually different average particle diameters. The thermoplastic resin composition is excellent in colorability, weather resistance, tensile strength, flexural strength, and impact strength.

A method for styling hair comprises placing the hair in a desired configuration and applying a hair styling composition to the hair. The hair styling composition comprises a powder of a multistage polymer of a soft polymer of Tg<40° C.; and a hard polymer having a Tg>40° C., and at least 10° C. higher than the Tg of the soft polymer wherein the hard polymer forms a complete or partial shell around the soft polymer the weight ratio of hard polymer to soft polymer being 1.01:1 to 2:1. After exposure to liquid water and drying at temperatures below 100° C., a maximum thermal transition temperature of the multistage polymer in an atmosphere of 0% relative humidity that differs by 20° C. or less from the maximum thermal transition temperature in an atmosphere of 75% relative humidity.

A method for styling hair comprises placing the hair in a desired configuration and applying a hair styling composition to the hair. The hair styling composition comprises a powder of a multistage polymer of a soft polymer of Tg<40° C.; and a hard polymer having a Tg>40° C., and at least 10° C. higher than the Tg of the soft polymer wherein the hard polymer forms a complete or partial shell around the soft polymer the weight ratio of hard polymer to soft polymer being 1.01:1 to 2:1. After exposure to liquid water and drying at temperatures below 100° C., a maximum thermal transition temperature of the multistage polymer in an atmosphere of 0% relative humidity that differs by 20° C. or less from the maximum thermal transition temperature in an atmosphere of 75% relative humidity.