Lg Chem, Ltd

Soon Ho Sun

Yi Young Choi

Ki Soo Lee

Bog Ki Hong

Sun Mi Kim

Sung Min Lee

Jin Young Park

Myung Han Lee

Sung Hyun Park

Yu Taek Sung

Eun Kyoung Song

Chang Woan Han

Heon Yong Kwon

Dae Sik Hong

Hyunsup Lee

Se Young Kim

Hyun Sup Lee

Sol Cho

Joong Soo Kim

Ye Jin Lee

Dong Hoon Jeong

Yong Ho Lee

Sung Joon Oh

Kyung Jin Cho

Jeong Kyu Lee

Eun Young Shin

In Young Song

Young Suk You

Seung Mi Lee

Daehwan Kim

Oh Joo Kwon

Pum Suk Park

Ki Heon Song

Chang Kwon Chung

Yo Han Bae

Jong Young Bae

Hyeong Il Lee

The present invention relates to a method for evaluating an injection physical property of a plastic resin, and a polyethylene resin suitable for an injection molding process and, more particularly, to a novel method for evaluating an injection physical property of a plastic resin, which, when a particular plastic resin is processed by an injection process, can accurately derive injection suitability of the plastic resin and injection pressure in the injection process through a physical property value measured by using a resin specimen, and a polyethylene resin suitable for injection molding.

Assessment method for injection molding property of plastic form

The present application relates to a method for selecting an injection-molded article and a method for manufacturing an injection-molded article. An injection-molded article having excellent crack stability can be produced using the material selected using the described selection method without having to manufacture test articles through injection molding.

Method for selecting material of injection-molded article and method for manufacturing injection-molded article

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

Polyolefin resin composition and stretch film using the same

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.

Ethylene/alpha-olefin copolymer

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

Ethylene/alpha-olefin copolymer having excellent environmental stress crack resistance

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.

Polyethylene resin having excellent impact strength

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.

Ethylene/1-hexene copolymer having excellent processability and mechanical properties

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.

Supported hybrid catalyst system for ethylene slurry polymerization and method for preparing ethylene polymer with the catalyst system

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.

Ethylene/alpha-olefin copolymer having excellent processibility

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.

Method for evaluating properties of plastic resin product

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.

Catalyst composition for synthesizing olefin copolymer and method for preparing olefin copolymer

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.

Polyolefin for preparing fiber and fiber comprising the same

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.

Supported hybrid metallocene catalyst, and method for preparing polyolefin using the same

Provided is an olefin-based polymer with excellent processability. The olefin-based polymer according to the present invention has a high molecular weight and a broad molecular weight distribution to show excellent processability and improved mechanical properties, thereby being usefully applied according to the intended use.

Olefin-based polymer with excellent processability

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.

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Daejeon, South Korea

Soon Ho Sun