Lg Chem, Ltd

Young Young Hwang

Moo Ho Hong

Jung Jun Park

Hyong Min Bahn

Ki Jae Lee

Un Ko

Byoung Kyu Chun

Young Wook Son

Min Jeong Kim

Mooho Hong

Youngwook Son

Byoungkue Jeon

Young In Yang

Byoung Kue Chun

Daehyeon Hwang

Jae Chan Park

Hee Yong Park

Tae Yun Ko

Ki Heung Yoo

Hyoung Min Bahn

Dayoung Lee

Hyun Jung Ryu

Byeong Hoon Lee

Hyune Jung Ryu

Provided are a diol compound which may be used to prepare a polycarbonate having excellent weather resistance, hardness, heat resistance, transparency, impact resistance, etc. while having excellent mechanical properties, a polycarbonate prepared by using the same, and a preparation method thereof.

Diol compound, polycarbonate, and preparation method thereof

The present disclosure relates to a polycarbonate and a preparation method thereof, which has a novel structure with an improvement in weather resistance and refractive index, while having excellent mechanical properties.

Polycarbonate and preparation method thereof

Provided is a diol compound of the following Chemical Formula 1, a polycarbonate comprising the diol compound, and a method of producing the polycarbonate:

Diol compound, polycarbonate, and preparation method of the same

Provided are a copolycarbonate and a polycarbonate composition comprising the same. The copolycarbonate comprises repeat units of the following Chemical Formula 1 and repeat units of the following Chemical Formula 2: Chemical Formula 1  Chemical Formula 2 

Copolycarbonate and polycarbonate composition comprising the same

Provided is a polycarbonate of Chemical Formula 1: 

The present invention relates to a polycarbonate composition and an article including the same. The polycarbonate composition according to the present invention includes a copolycarbonate having a specific siloxane structure and a branched or non-branched polycarbonate, and simultaneously uses a flame retardant and an organophosphorus compound, thereby being able to exhibit excellent flame retardancy and impact strength and also to maintain the impact strength even under high temperature and high humidity conditions for a long period of time.

Polycarbonate composition and article comprising same

The present disclosure relates to a polycarbonate resin composition having increased fluidity and excellent physical properties, and comprising:    

Polycarbonate resin composition

The present disclosure relates to a copolycarbonate having improved impact strength at low temperature and yellow index simultaneously, a composition including the same, and the copolycarbonate comprising:

Copolycarbonate and composition comprising the same

Provided are a novel polyorganosiloxane capable of preparing copolycarbonate with improved weather resistance and flowability while maintaining the intrinsic physical properties of polycarbonate resin, and a copolycarbonate prepared by using the same.

Polyorganosiloxane, and copolycarbonate prepared by using the same

The present disclosure relates to a copolycarbonate including repeating units of Chemical Formulas 1, 2 and 3; and a composition comprising the same: 

The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved hardness and to a copolycarbonate prepared by using the same. The novel polyorganosiloxane according to the present invention can be used as a monomer of a copolycarbonate, and it can exhibit improved hardness and chemical resistance simultaneously while maintaining the intrinsic properties of copolycarbonate due to the alkylene or isosorbide-derived structure included in the formula thereof.

Polyorganosiloxane and copolycarbonate prepared by using the same

The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved chemical resistance and flame retardancy while maintaining the intrinsic physical properties of a polycarbonate resin and to a copolycarbonate prepared by using the same.

Disclosed are a copolycarbonate resin composition having improved mechanical properties such as impact resistance and chemical resistance while maintaining resin flowability, and an article including the same, where the copolycarbonate resin composition comprises a copolycarbonate resin including an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating unit having at least one siloxane bond; and a polysiloxane polymer containing a hydrocarbon-based functional group having 2 or more carbon atoms.

Copolycarbonate resin composition and article including the same

Disclosed is a copolycarbonate having an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating units having siloxane bonds, where the copolycarbonate provides an improved residence heat stability, and where the second repeating unit includes a repeating unit represented by Chemical Formula 2 and a repeating unit represented by Chemical Formula 3: 

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Daejeon, South Korea

Young Young Hwang