Abstract: A polycarbonate resin includes a repeat unit represented by Formula 1; a repeat unit represented by Formula 2; and a repeat unit represented by Formula 3, wherein the polycarbonate resin has a weight average molecular weight of about 15,000 g/mol to about 60,000 g/mol and a melt index of about 3 g/10 min to about 40 g/10 min.: wherein R1, R2, R3, R4, a, b, c, and d are the same as defined in the specification. The polycarbonate resin for film can exhibit excellent scratch resistance, elongation, chemical resistance and heat resistance, and can be used to prepare a film in roll form without any protective film.

Abstract: A polycarbonate resin of the present invention is characterized by comprising repeating units represented by Formula 1, Formula 2, Formula 3 and Formula 4, respectively.

Abstract: The polycarbonate resin of the present invention comprises: a repeating unit represented by formula 1 of claim 1; and a repeating unit represented by formula 2 of claim 1. The polycarbonate resin has excellent scratch resistance, transparency and tensile elongation.

Abstract: The polycarbonate resin of the present invention comprises: a repeating unit represented by formula 1 of claim 1; and a repeating unit represented by formula 2 of claim 1. The polycarbonate resin has excellent scratch resistance, transparency and tensile elongation.

Abstract: A polycarbonate of the present invention includes repeating units represented by, Formula 1, Formula 2 and Formula 3, respectively, and thus, may have excellent scratch resistance, chemical resistance and impact property.

Abstract: Disclosed herein is a method for preparing a polycondensation resin. The method includes preparing a low degree condensate; and solid phase polymerizing the low degree condensate, wherein a granular molded article is introduced into the solid phase polymerization. The method enables efficient manufacture of high quality resins without problems such as agglomeration or scaling of a low degree condensate in pipes.

Abstract: A polycarbonate of the present invention includes repeating units represented by, Formula 1, Formula 2 and Formula 3, respectively, and thus, may have excellent scratch resistance, chemical resistance and impact property.

Abstract: A polycarbonate resin of the present invention is characterized by comprising repeating units represented by Formula 1, Formula 2, Formula 3 and Formula 4, respectively.

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: A polycarbonate resin includes a repeating unit in its main chain of the following Chemical Formula 1: wherein the substituents are as defined in the specification.

Abstract: A method for preparing a polycarbonate resin includes polymerizing an aromatic dihydroxyl compound and a diaryl carbonate to prepare a polycarbonate pre-polymer; injecting and mixing an inert gas with the prepared polycarbonate pre-polymer; and foaming and polymerizing the polycarbonate pre-polymer with which the inert gas is mixed. The method can prevent or reduce yellowing upon melt polymerization of the polycarbonate resin.

Abstract: A polycarbonate resin includes a repeat unit represented by Formula 1; a repeat unit represented by Formula 2; and a repeat unit represented by Formula 3, wherein the polycarbonate resin has a weight average molecular weight of about 15,000 g/mol to about 60,000 g/mol and a melt index of about 3 g/10 min to about 40 g/10 min.: wherein R1, R2, R3, R4, a, b, c, and d are the same as defined in the specification. The polycarbonate resin for film can exhibit excellent scratch resistance, elongation, chemical resistance and heat resistance, and can be used to prepare a film in roll form without any protective film.

Abstract: Disclosed herein is a scratch-resistant flameproof thermoplastic resin composition, the resin composition comprising a base resin including (A) about 50 to about 90% by weight of a polycarbonate resin; (B) about 1 to about 50% by weight of a methacrylic copolymer resin with a refractive index of about 1.495 to about 1.590; and (C) about 0 to about 49% by weight of a (meth)acrylic resin, and (D) about 5 to about 40 parts by weight of a flame retardant, based on about 100 parts by weight of the base resin comprising (A)+(B)+(C). The resin composition of the present invention can have good flame retardancy, scratch resistance, colorability, and good appearance due to its improved compatibility. The resin composition of the invention can be used to produce plastic molded articles which can exhibit better physical properties than products produced using conventional resin compositions.

Abstract: Disclosed are a polycarbonate resin composition and a molded product formed of the same. The polycarbonate resin composition includes a polycarbonate resin and three types of UV stabilizers including a first benzotriazole UV stabilizer, a second benzotriazole UV stabilizer, and a bismalonate UV stabilizer to improve heat stability, weather resistance, and visible light transmittance.

Abstract: A flameproof thermoplastic resin composition can include (A) about 5 to about 40% by weight of an epoxy group-containing rubber modified aromatic vinyl copolymer resin, (B) about 30 to about 90% by weight of a polycarbonate resin, (C) about 1 to about 50% by weight of a polyester resin and (D) about 5 to about 30 parts by weight of a phosphorus-containing flame retardant, per 100 parts by weight of a base resin comprising (A), (B) and (C).

Abstract: Polycarbonate includes repeat units represented by Formula 1, Formula 2 and Formula 3, respectively: wherein: R1 and R2 are the same or different and are each independently substituted or unsubstituted C1 to C6 alkyl, substituted or unsubstituted C3 to C6 cycloalkyl, substituted or unsubstituted C6 to C12 aryl or halogen, a and b are the same or different and are each independently an integer from 0 to 4, and Q is substituted or unsubstituted C5 to C10 cycloalkyl.

Abstract: Polycarbonate includes repeat units represented by Formula 1, Formula 2 and Formula 3, respectively: wherein: R1 and R2 are the same or different and are each independently substituted or unsubstituted C1 to C6 alkyl, substituted or unsubstituted C3 to C6 cycloalkyl, substituted or unsubstituted C6 to C12 aryl or halogen, a and b are the same or different and are each independently an integer from 0 to 4, and Q is substituted or unsubstituted C5 to C10 cycloalkyl.

Abstract: Polyarylene ether is polymerized using a dissolving agent including anisole, wherein the polyarylene ether includes about 1 to about 3,000 ppm of anisole.

Abstract: Polyarylene ether is polymerized using a dissolving agent including anisole, wherein the polyarylene ether includes about 1 to about 3,000 ppm of anisole.

Abstract: Disclosed are a polycarbonate resin composition and a molded product formed of the same. The polycarbonate resin composition includes a polycarbonate resin and three types of UV stabilizers including a first benzotriazole UV stabilizer, a second benzotriazole UV stabilizer, and a bismalonate UV stabilizer to improve heat stability, weather resistance, and visible light transmittance.