Abstract: The present invention provides a flame retardant acrylic-based copolymer which includes a derivative unit obtained from a monomer mixture comprising: (A) a (meth)acrylic monomer; (B) at least one vinyl monomer selected from the group consisting of an aromatic vinyl monomer and an unsaturated nitrile monomer; and (C) a phosphorus-based (meth)acrylic monomer. The flame retardant acrylic copolymer has high refractivity and exhibits excellent flame retardancy and scratch resistance.

Abstract: The present disclosure relates to a polycarbonate resin composition, which comprises: based on thermoplastic resin 100 parts by weight comprising (A) polycarbonate resin 60 to 80 wt %; and (B) polycarbonate-polysiloxane copolymer resin 20 to 40 wt %, (C) pearl metal particle 1 to 4 parts by weight; and (D) colorant 0.1 to 10 parts by weight.

Abstract: The present invention provides a flame-retardant and scratch-resistant polycarbonate resin composition including a (meth)acrylic flame-retardant copolymer.

Abstract: A thermoplastic resin composition includes a base resin comprising about 5 to about 95 weight % of polycarbonate resin and about 5 to about 95 weight % of polycarbonate-polysiloxane copolymer resin; and about 0.1 to about 5 parts by weight of luster pigment per about 100 parts by weight of the base resin.

Abstract: A molded article for an automobile is formed using a thermoplastic resin composition including (A) about 1 to about 20 wt % of a first rubber-modified acrylic-based graft copolymer having an average particle diameter of greater than or equal to about 100 nm and less than about 200 nm, (B) about 1 to about 20 wt % of a second rubber-modified acrylic-based graft copolymer having an average particle diameter of greater than or equal to about 200 nm and less than or equal to about 400 nm, (C) about 5 to about 40 wt % of a first vinyl-based copolymer of an alkyl(meth)acrylate monomer, an aromatic vinyl monomer, and an unsaturated nitrile monomer wherein the alkyl(meth)acrylate monomer is included in an amount of greater than or equal to about 50 wt %, and (D) about 50 to about 85 wt % of a polycarbonate resin, wherein the molded article is a radiator grill or an outside mirror housing.

Abstract: Disclosed are a thermoplastic resin composition including (A) a polycarbonate resin, (B) an aromatic vinyl-based copolymer, (C) a rubber modified vinyl-based graft copolymer, and (D) a glass fiber, wherein the glass fiber (D) includes (D-1) a first glass fiber having a length of about 1 ?m to about 200 ?m and (D-2) a second glass fiber having a length of about 2 mm to about 6 mm, and a molded article using the same.

Abstract: A polycarbonate resin composition can have improved transparency and scratch resistance of the present invention and comprises about 10 to about 99% by weight of polycarbonate resin (A); and about 1 to about 90% by weight of acrylic copolymer with ultra-low molecular weight and high refractive index (B). The resin composition of the present invention can further comprise acrylic resin (C). The acrylic copolymer with ultra-low molecular weight and high refractive index (B) can have a refractive index of about 1.495 to about 1.590 and a weight average molecular weight of about 3,000 to about 40,000 g/mol.

Abstract: An eco-friendly (meth)acrylic flame retardant copolymer includes a phosphorous-based acrylic monomer to provide a high index of refraction and excellent flame retardancy.

Abstract: Disclosed herein is a thermoplastic (meth)acrylate copolymer, which includes a derivative unit obtained from a monomer mixture including: (A) an aromatic (meth)acrylate having an index of refraction from about 1.580 to about 1.700; and (B) a monofunctional unsaturated monomer.

Abstract: A thermoplastic resin composition according to the present invention is characterized by comprising: (A) a polycarbonate resin; and (B) a biphenyl group-containing (meth)acrylic copolymer. As such, the refractive index of the biphenyl group-containing (meth)acrylic copolymer (B) can be approximately from 1.495 to 1.640. The thermoplastic resin composition exhibits superior balance of material properties such as impact strength, internal scratch resistance, transparency, thermal resistance and appearance.

Abstract: Disclosed herein is a branched (meth)acrylate copolymer prepared by polymerizing a monomer mixture comprising (A) about 20 to about 99.999% by weight of a (meth)acrylate monomer having a refractive index higher than methyl methacrylate; (B) about 0 to about 79.999% by weight of a mono-functional unsaturated monomer; and (C) about 0.001 to about 10% by weight of a crosslinking monomer. The copolymer has a refractive index of about 1.495 to about 1.590.

Abstract: The present invention provides a flame retardant acrylic-based copolymer which includes a derivative unit obtained from a monomer mixture comprising: (A) a (meth)acrylic monomer; (B) at least one vinyl monomer selected from the group consisting of an aromatic vinyl monomer and an unsaturated nitrile monomer; and (C) a phosphorus-based (meth)acrylic monomer. The flame retardant acrylic copolymer has high refractivity and exhibits excellent flame retardancy and scratch resistance.

Abstract: Acrylic fine particles formed by polymerization of a (meth)acrylate containing monomer with a cross-linking agent are disclosed. The cross-linking agent includes a first cross-linking agent having at least three (meth)acryloyloxy groups and at least one functional group —OH, —COOH, or a combination thereof, and the acrylic fine particles can have a coefficient of variation (C.V.) of about 20 to about 60%. The acrylic fine particles can have high heat resistance and solvent resistance and also enhanced compatibility with a binder and a solvent. Accordingly, the acrylic fine particles can exhibit remarkably increased dispersibility when used in a diffusing film or the like, and thus are suitable for use as a diffusing agent.

Abstract: Disclosed herein is a flame-retardant scratch-resistant thermoplastic resin composition comprising (A) about 20 to about 95% by weight of a polycarbonate resin; (B) about 1 to about 50% by weight of a copolymer resin comprising (B1) about 0 to about 100% by weight of a rubber modified vinyl graft copolymer resin and (B2) about 0 to about 100% by weight of a vinyl copolymer resin; (C) about 1 to about 50% by weight of a (meth)acrylic copolymer resin with a refractive index of about 1.50 to about 1.59; and (D) about 0.1 to about 40 parts by weight of a flame retardant, per 100 parts by weight of a base resin comprising (A)+(B)+(C).

Abstract: Disclosed is a resin composition including (A) a polycarbonate resin and (B) a rubber modified vinyl-based graft copolymer, and (C) about 1 to about 9 parts by weight of a random copolymer of a compound represented by the following Chemical Formula 1, an aromatic vinyl monomer, and a vinyl cyanide monomer, based on about 100 parts by weight of the polycarbonate resin (A) and the rubber-modified vinyl-based graft copolymer (B): wherein, in the above chemical formula, m is an integer ranging from 0 to 10, and X is phenyl, methylphenyl, methylethylphenyl, methoxyphenyl, cyclohexylphenyl, chlorophenyl, bromophenyl, phenylphenyl group, or benzylphenyl.

Abstract: Disclosed are a transparent thermoplastic resin composition including (A) about 5 to about 40 wt % of an impact-reinforcing agent having a core-shell structure where an acrylic-based compound is grafted on a rubber core including a copolymer of an acrylic-based monomer and a diene-based monomer, to form a shell, and (B) about 60 to about 95 wt % of an acrylic-based resin, and a molded article using the same.

Abstract: A (meth)acrylic copolymer is a copolymer of a monomer mixture including a phosphorus-based (meth)acrylic monomer represented by Formula 1, and a monofunctional unsaturated monomer. The (meth)acrylic copolymer can have improved refractive index, excellent flame resistance, transparency, scratch resistance and/or environment-friendliness: wherein R1 is hydrogen or methyl, R2 is a substituted or unsubstituted C1-C20 hydrocarbon group, R3 and R4 are the same or different and are each independently a substituted or unsubstituted C6-C20 cyclic hydrocarbon group, m is an integer from 1 to 10, and n is an integer from 0 to 5.

Abstract: A thermoplastic resin composition comprises (A) about 30 to about 98 wt % of a polycarbonate resin, (B) about 1 to about 50 wt % of a rubber modified acrylic-based graft copolymer, and (C) about 1 to about 69 wt % of a branched copolymer including silicon-based compound. A molded article can be made using the same.

Abstract: Disclosed are a thermoplastic resin composition including (A) a polycarbonate resin, (B) an aromatic vinyl-based copolymer, (C) a rubber modified vinyl-based graft copolymer, and (D) a glass fiber, wherein the glass fiber (D) includes (D-1) a first glass fiber having a length of about 1 ?m to about 200 ?m and (D-2) a second glass fiber having a length of about 2 mm to about 6 mm, and a molded article using the same.

Abstract: An aromatic vinyl thermoplastic resin composition includes (A) about 10 to about 99% by weight of a thermoplastic resin (A) including (a1) an aromatic vinyl copolymer resin, (a2) a rubber-modified vinyl graft copolymer, or a combination of (a1) and (a2); and (B) about 1 to about 90% by weight of a branched aromatic vinyl copolymer resin including a silicon based compound. The branched aromatic vinyl copolymer includes a copolymer prepared by copolymerizing (b1) about 10 to about 85% by weight of an aromatic vinyl based monomer; (b2) about 10 to about 85% by weight of an unsaturated nitrile based monomer; (b3) about 1 to about 50% by weight of an aromatic methacrylate, aliphatic methacrylate, or a combination thereof; and (b4) about 0.1 to about 20% by weight of a silicon based compound having two or more unsaturated functional groups.