Abstract: The present invention relates to a method for generating an artificial intelligence model for process control, a process control system based on the artificial intelligence model, and a reactor comprising same, the present invention may easily derive an optimal reactor input condition for achieving the target operation condition of the reactor and the target physical property value of the product by using the AI model.

Abstract: Provided are a method of purifying an alpha-olefin and a composition for purifying an alpha-olefin therefor. More specifically, a method of purifying an alpha-olefin having an excellent effect of removing impurities in the alpha-olefin and a composition for purifying an alpha-olefin therefor are provided.

Abstract: The present invention relates to a method for producing ethylene polymer predicting and controlling the density of ethylene polymer in real time using on-ling analyzer. Specifically, the present invention relates to a method for producing a polymer having a desired property by measuring properties such as the density of a polymer and a content of unreacted substances in real time on-line in a polymerization reactor system and controlling a content of raw materials injected into polymerization therefrom.

Abstract: A pigment composition according to an embodiment includes aluminum flakes coated with a plurality of metal oxide layers and TiO2 coated with a metal oxide layer, thus having explosion stability. The pigment composition may be prepared by mixing with TiO2 coated with a metal oxide layer having lower apparent specific gravity as compared to other plate-shaped inorganic particles. The pigment composition can have stability against a thermite reaction by aluminum and metal oxides while preventing deterioration of saturation and opacity.

Abstract: Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method of preparing the same, and a molded article having a low haze and a low heat sealing temperature using the ethylene polymer mixture, are provided.

Abstract: The present invention provides a transition metal compound, a catalyst composition comprising same, and a method for producing an olefin polymer using the catalyst composition. A transition metal compound having a specific functional group at a specific position, according to the present invention, has high solubility and catalytic activity, and thus a method for producing an olefin polymer by using said transition metal compound can produce an olefin polymer having excellent physical properties through a simple process.

Abstract: Provided are an ultra-low viscosity ethylene-butene copolymer which is a copolymer derived from ethylene and butene, wherein the ethylene-butene copolymer has a density of 0.874 to 0.900 g/cm3 and a melting point of 63 to 90° C., and a composition for a hot-melt adhesive including the same. The ethylene-butene copolymer according to the present disclosure may be rapidly melted at a certain melting point or higher and may provide a low processing temperature with a significantly low viscosity. In addition, the composition for a hot-melt adhesive according to the present disclosure includes the ethylene-butene copolymer, thereby having excellent thermal resistance with high shear adhesion failure temperature and peel adhesion failure temperature and securing both excellent cohesiveness and adhesive strength.

Abstract: Provided are a method of purifying an alpha-olefin and a composition for purifying an alpha-olefin therefor. More specifically, a method of purifying an alpha-olefin having an excellent effect of removing impurities in the alpha-olefin and a composition for purifying an alpha-olefin therefor are provided.

Abstract: Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method of preparing the same, and a molded article having a low haze and a low heat sealing temperature using the ethylene polymer mixture, are provided.

Abstract: Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The ethylene copolymer having improved hygienic property can be applied in injection molding, rotation molding, or blow molding.

Abstract: Disclosed herein is a group IV transition metal catalyst for producing an ethylene homopolymer or an ethylene-olefin copolymers, having high catalytic activity, which includes a cyclopentadiene derivative and one or more anionic ligands having an aryl group substituted with an aryl derivative at an ortho-position thereof around a transition metal, the ligands not being crosslinked to each other, a catalyst system including the group IV transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and a method of producing ethylene homopolymers or ethylene-olefin copolymers using the catalyst system.

Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.

Abstract: Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The ethylene copolymer having improved hygienic property can be applied in injection molding, rotation molding, or blow molding.

Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.

Abstract: Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The ethylene copolymer having improved hygienic property can be applied in injection molding, rotation molding, or blow molding.

Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.

Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.

Abstract: Disclosed herein is a group IV transition metal catalyst for producing an ethylene homopolymer or an ethylene-olefin copolymers, having high catalytic activity, which includes a cyclopentadiene derivative and one or more anionic ligands having an aryl group substituted with an aryl derivative at an ortho-position thereof around a transition metal, the ligands not being crosslinked to each other, a catalyst system including the group IV transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and a method of producing ethylene homopolymers or ethylene-olefin copolymers using the catalyst system.

Abstract: The present invention relates to a bis-arylaryloxy catalyst system for the production of ethylene homopolymers or copolymers with ?-olefins, which has high catalytic activity. More particularly, it relates to a transition metal catalyst comprising a group-IV transition metal as a central metal, a cyclopentadiene derivative around the central metal, and two aryloxide ligands substituted with aryl derivatives at the ortho-positions, the ligands not being bridged to each other, as well as a catalyst system comprising said catalyst and an aluminoxane co-catalyst or a boron compound co-catalyst, and a method for producing high-molecular-weight ethylene homopolymers or copolymers with ?-olefins using the same.

Abstract: The present invention relates to a bis-arylaryloxy catalyst system for the production of ethylene homopolymers or copolymers with ?-olefins, which has high catalytic activity. More particularly, it relates to a transition metal catalyst comprising a group-IV transition metal as a central metal, a cyclopentadiene derivative around the central metal, and two aryloxide ligands substituted with aryl derivatives at the ortho-positions, the ligands not being bridged to each other, as well as a catalyst system comprising said catalyst and an aluminoxane co-catalyst or a boron compound co-catalyst, and a method for producing high-molecular-weight ethylene homopolymers or copolymers with ?-olefins using the same.