Abstract: Provided is a polyethylene resin film exhibiting more improved transparency while exhibiting excellent processability and mechanical properties. The polyethylene resin film having a density of 0.910 g/cm3 to 0.930 g/cm3, and a haze of 10% or less at a thickness of 90 ?m to 110 ?m includes a first polyethylene resin and a second polyethylene resin at a weight ratio of 6:4 to 8:2, wherein the first polyethylene resin has an MFRR (21.6/2.16) value of 27 to 40, and the second polyethylene resin has an MFRR (21.6/2.16) value of 15 to 23, and the MFRR (21.6/2.16) value is obtained by dividing a melt flow rate (MFR21.6) measured at a temperature of 230° C. under a load of 21.6 kg in accordance with ISO 1133 by a melt flow rate (MFR2.16) measured at a temperature of 230° C. under a load of 2.16 kg in accordance with ISO 1133.

Abstract: The present invention relates to a method for evaluating the properties of a plastic resin molded product, more specifically to a novel method for evaluating the properties of a plastic resin molded product that can exactly derive impact resistance of practically prepared molded products, using the property measurement values by the existing ASTM.

Abstract: The present invention provides polyolefin resin composition exhibiting excellent long term durability as well as improved properties, and an article prepared using the same.

Abstract: The present invention relates to a catalyst composition for synthesizing an olefin copolymer, including a first metallocene catalyst, a second metallocene catalyst, and a third metallocene catalyst, each having a specific structure, and a method for preparing an olefin copolymer using the catalyst composition for synthesizing an olefin copolymer.

Abstract: The present invention relates to a polyolefin pellet for preparing a fiber, and a fiber comprising the same. According to the present invention, provided is a polyolefin, which exhibits a high molecular weight range and a narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of a fiber is reduced. Therefore, by using the polyolefin pellet, the present invention exhibits a molecular weight, a density and a narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but has high tenacity and an excellent drawing characteristic and can be highly oriented because gel formation is reduced, and therefore, the present invention can be applied to various industrial products due to a high draw ratio and crystallinity during a multifilament operation using the same.

Abstract: The present invention relates to polyolefin powder for preparing fiber, and fiber comprising the same. According to the present invention, provided is polyolefin, which exhibits a high molecular weight range and narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of fiber is reduced. Therefore, by using the polyolefin, the present invention exhibits molecular weight, density and narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but the number of gels having a large particle diameter is remarkably reduced, and therefore, the present invention can provide fiber having excellent tenacity and tensile strength half-life.

Abstract: Provided is an ethylene/alpha-olefin copolymer having excellent environmental stress crack resistance.

Abstract: The present disclosure relates to a supported hybrid metallocene catalyst and a method for preparing a polyolefin using the same. When the supported hybrid metallocene catalyst according to the present disclosure is used, a polyolefin with a multimodal molecular weight distribution and excellent environmental stress crack resistance can be prepared.

Abstract: The present invention relates to polyethylene resin having excellent impact strength, and more specifically, to polyethylene resin exhibiting excellent impact strength and flexural strength, when prepared into a molded product.

Abstract: A method of preparing a supported metallocene catalyst capable of more effectively preparing a polyolefin which may be preferably used for blow molding, etc., because its molecular weight distribution is such that polymer elasticity is increased to improve swell, is provided.

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.

Abstract: The present invention relates to a polyolefin which exhibits a narrow molecular weight distribution, high strength, and a high stretching ratio, and a preparation method therefor. According to the present invention, it is possible to provide polyethylene with high catalyst activity, high molecular weight, and controlled molecular weight distribution by using, in polymerization of an olefin monomer, a hybrid supported metallocene catalyst in which a borate compound is used as a second cocatalyst. In addition, if the polyolefin is processed, it is possible to produce a fiber with excellent mechanical properties and an excellent stretching ratio.

Abstract: The present invention relates to a catalyst composition for synthesizing an olefin copolymer, including a first metallocene catalyst, a second metallocene catalyst, and a third metallocene catalyst, each having a specific structure, and a method for preparing an olefin copolymer using the catalyst composition for synthesizing an olefin copolymer.

Abstract: The present disclosure relates to an ethylene/alpha-olefin copolymer having excellent processibility. The ethylene/alpha-olefin copolymer according to the present disclosure is excellent in both mechanical properties and processibility.

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and surface characteristics and thus can be usefully applied to various products.

Abstract: The ethylene/1-hexene copolymer according to the present invention has excellent processability and mechanical properties, and thus can be applied to various fields such as food containers.

Abstract: The present invention relates to a hybrid supported metallocene catalyst and a polyolefin preparation method using the same. Using the hybrid supported metallocene catalyst can not only significantly reduce the amount of wax produced when polymerizing olefin monomers, but can also enhance the stress cracking resistance of the polyolefin that is prepared.

Abstract: The present disclosure relates to a supported hybrid metallocene catalyst and a method for preparing a polyolefin using the same. When the supported hybrid metallocene catalyst according to the present disclosure is used, a polyolefin with a multimodal molecular weight distribution and excellent environmental stress crack resistance can be prepared.

Abstract: The present invention relates to a supported hybrid catalyst system for ethylene slurry polymerization and a method for preparing ethylene polymer therewith. The supported hybrid catalyst system according to the present invention may exhibit high activity during ethylene slurry polymerization, and enables preparation of an ethylene polymer having a narrow molecular weight distribution but excellent processability.