Lg Chem, Ltd

Jung Jun Park

Moo Ho Hong

Young Young Hwang

Hyong Min Bahn

Ki Jae Lee

Un Ko

Young Wook Son

Byoung Kyu Chun

Min Jeong Kim

Byoung Kue Chun

Jae Chan Park

Hee Yong Park

Tae Yun Ko

Hyun Jung Ryu

Byeong Hoon Lee

Ki Heung Yoo

Hyoung Min Bahn

Hyong Minh Bahn

Hyune Jung Ryu

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: 

The present invention relates to a polycarbonate resin composition and an optical molded product comprising the same. The polycarbonate resin composition according to the present invention is excellent in transmittance and color uniformity which are required for a light guide plate, and also excellent in processability. Thus, it can be effectively used as a material of the light guide plate.

Polycarbonate resin composition and optical molded product comprising the same

The present disclosure relates to a polycarbonate resin and a method of preparing the same, has an effect of providing a polycarbonate resin having superior chemical resistance and wear resistance due to application of a predetermined comonomer thereto, and a method of preparing the same.

Copolycarbonate resin and method for preparing the same

Provided are a copolycarbonate having superior weather resistance as well as excellent mechanical properties, and a preparation method thereof.

Copolycarbonate and method for preparing the same

The present invention relates to a copolycarbonate resin composition comprising a copolycarbonate in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and a UV stabilizer. Since the present copolycarbonate resin composition has excellent weather resistance, the article prepared by using this composition exhibits less deteriorated surface quality and physical properties caused by ultraviolet rays or the like when exposed to the outside.

Copolycarbonate composition and article containing the same

The present invention relates to a copolycarbonate and a molded article comprising the same. The copolycarbonates according to the present invention has a structure in which a specific siloxane compound is introduced in a main chain of the polycarbonate, and has effects of improving impact strength at room temperature, impact strength at low temperature, and melt index properties.

The present invention relates to a copolycarbonate and a composition comprising the same, and more specifically to a technique for improving flame retardance and chemical resistance while maintaining inherent impact strength and melt index of the copolycarbonate, by comprising a branched repeating unit in the copolycarbonate structure.

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Daejeon, South Korea

Jung Jun Park