Abstract: Provided are a novel metallocene compound, a catalyst composition including the same, and a method of preparing a polyolefin using the same. The metallocene compound according to the present invention and the catalyst composition including the same may be used for the preparation of a polyolefin, may have excellent polymerization ability, and may produce a polyolefin having an ultra-high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefin-based polymer having an ultra-high molecular weight may be polymerized because the metallocene compound shows high polymerization activity even when it is supported on a support.

Abstract: The present invention relates to a novel transition metal compound, a catalyst composition comprising the transition metal compound, and a method of preparing polyolefin using the catalyst composition.

Abstract: The present disclosure relates to a novel metallocene supported catalyst, and a method for preparing a polyolefin using the same. The metallocene supported catalyst according to the present disclosure exhibits a high polymerization activity even when the metallocene compound is supported on a support, thereby showing an excellent activity and preparing a polyolefin having a high molecular weight.

Abstract: The present disclosure relates to a novel metallocene compound. The metallocene compound according to the present disclosure may be used for the preparation of an olefin-based polymer, may have excellent ability, and may produce an olefin-based polymer having a relatively high molecular weight compared with the case of using a catalyst composition having a similar structure due to the structural and electrical steric hindrance effect.

Abstract: The present invention relates to a novel ligand compound, a metallocene compound, and a method for preparing an olefin-based polymer using the same. The metallocene compound according to the present invention and a catalyst composition comprising the same have excellent polymerization activity, and yet, have excellent comonomer insertion capability, and thus, can be used to prepare olefin-based polymer having wide molecular weight distribution and the resulting excellent processability.

Abstract: Provided are a novel metallocene compound, a metallocene-supported catalyst, and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure exhibits a high polymerization activity even when the metallocene compound is supported on a support, thereby showing an excellent activity and preparing a polyolefin having a high molecular weight.

Abstract: The present invention relates to a novel transition metal compound, a catalyst composition comprising the transition metal compound, and a method of preparing polyolefin using the catalyst composition.

Abstract: Provided are a metallocene compound having a novel structure capable of preparing a polyolefin having a broad molecular weight distribution and a high molecular weight, and a method of preparing the same. The metallocene compound according to the present invention includes a non-crosslinked catalyst structure, and implements copolymerizability in an ansa-type catalyst level, thereby preparing a polyolefin having a high molecular weight of 300,000 or more.

Abstract: Provided are a novel metallocene compound, a catalyst composition including the same, and a method of preparing a polyolefin using the same. The metallocene compound according to the present invention and the catalyst composition including the same may be used for the preparation of a polyolefin, may have excellent polymerization ability, and may produce a polyolefin having an ultra-high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefin-based polymer having an ultra-high molecular weight may be polymerized because the metallocene compound shows high polymerization activity even when it is supported on a support.

Abstract: The present invention relates to a novel ligand compound, a metallocene compound, and a method for preparing an olefin-based polymer using the same. The metallocene compound according to the present invention and a catalyst composition comprising the same have excellent polymerization activity, and yet, have excellent comonomer insertion capability, and thus, can be used to prepare olefin-based polymer having wide molecular weight distribution and the resulting excellent processability.

Abstract: Provided are a metallocene compound having a novel structure capable of preparing a polyolefin having a broad molecular weight distribution and a high molecular weight, and a method of preparing the same. The metallocene compound according to the present invention includes a non-crosslinked catalyst structure, and implements copolymerizability in an ansa-type catalyst level, thereby preparing a polyolefin having a high molecular weight of 300,0000 or more.

Abstract: Disclosed is a photosensitive resin composition suitable for use in a transflective liquid crystal display (LCD). The photosensitive resin composition uses, as an alkali-soluble binder resin, a blend of two kinds of binder resins. The first binder resin has a weight average molecular weight greater than or equal to 1,000 but lower than 20,000 and contains no reactive group. The second binder resin has a weight average molecular weight greater than or equal to 20,000 but lower than 80,000 and contains reactive groups. The photosensitive resin composition has good adhesion to an underlying substrate while forming a high resolution fine pattern.

Abstract: A color filter substrate is provided. In the color filter substrate, transparent protective films are formed on respective sub-pixels of a color filter. The color filter substrate has improved electric field characteristics without the need for additional optical or circuit compensation to achieve an improvement in contrast and a reduction in color difference.

Abstract: A color filter substrate is provided. In the color filter substrate, transparent protective films are formed on respective sub-pixels of a color filter. The color filter substrate has improved electric field characteristics without the need for additional optical or circuit compensation to achieve an improvement in contrast and a reduction in color difference.

Abstract: Disclosed is a photosensitive resin composition suitable for use in a transflective liquid crystal display (LCD). The photosensitive resin composition uses, as an alkali-soluble binder resin, a blend of two kinds of binder resins. The first binder resin has a weight average molecular weight greater than or equal to 1,000 but lower than 20,000 and contains no reactive group. The second binder resin has a weight average molecular weight greater than or equal to 20,000 but lower than 80,000 and contains reactive groups. The photosensitive resin composition has good adhesion to an underlying substrate while forming a high resolution fine pattern.

Abstract: The present invention provides a method of preparing organic acids from aldehyde compounds by means of liquid phase oxidation which converts an aldehyde group of a compound harboring one or more aldehyde groups into a carboxyl group by using an ionic liquid as a reaction solvent or a reaction catalyst. According to the present invention, the ionic liquid is less volatile even at high temperature and stable against heat, enhancing conversion rate and selectivity and further increasing yield. In addition, the ionic liquid can be easily separated and recycled from the reactant and product.