Lg Chem, Ltd

Heekwang Park

Seong Min Chae

Kyung Seop Noh

Jihwa Ye

Sangjin Jeon

Seok Hwan Kim

Hyunsup Lee

Byung Seok Kim

Insun Lee

Hye Kyung Lee

Taejin Kim

Daeyeon Lee

Ki Soo Lee

Daesik Hong

Seyoung Kim

Myunghan Lee

Jung Won Lee

Donghyeon Gwon

Ha Na Park

Heon Yong Kwon

In Yong Jung

According to this invention, there are provided powder type polypropylene resin wherein flowability in a hooper and feeding stability in the feeding zone of an extruder are improved through morphology optimization such as decrease in fine powder content, narrow particle size distribution, increase in average particle size, and high melting point, and the like, and a method for preparing the same.

Powder type polypropylene resin and method for preparing the same

The present disclosure relates to a polypropylene resin exhibiting excellent processability and capable of producing fine fibers, a polypropylene fiber including the same, and a method for preparing the same.

Polypropylene resin, polypropylene fiber and method for preparing the same

There are provided a pellet type polypropylene resin composition that exhibits excellent heat resistance and oxidation stability, and exhibits high flow without using a decomposition accelerator, and thus, can be used to prepare fine denier fiber, and a method for preparing the same.

Pellet-type polypropylene resin composition and method for preparing the same

The present disclosure relates to a novel transition metal compound represented by the following Chemical Formula 1, which exhibits excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a high melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same,

Transition metal compound and catalyst composition comprising the same

The present disclosure relates to a propylene-ethylene random copolymer for high transparency injection that has a low total volatile organic compound emission (TVOC), excellent processability, and maximizing ethylene content.

Propylene-ethylene random copolymer

A method for evaluating physical properties of a melt-blown plastic resin, and, more specifically, to a novel method for evaluating physical properties are provided. When a particular plastic resin is processed by a melt-blown process, a stretching diameter value after the process of the plastic resin can be accurately derived from a physical property value measured using a specimen of the resin.

Method for evaluating properties of melt-blown plastic resin

The present invention relates to polypropylene non-woven fabric having excellent loft property, a method for preparing polypropylene non-woven fabric having excellent loft property, and a method for evaluating the properties of the polypropylene resin.

Method for evaluating properties of polypropylene resin, method for preparing polypropylene non-woven fabric, and polypropylene non-woven fabric

The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.

Polypropylene resin pellet and method for preparing the same

Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.

Method of preparing supported metallocene catalyst and method of preparing polypropylene using catalyst prepared thereby

The present invention provides a resin composition for core-sheath type bi-component fiber that not only maintains excellent softness, but also improves tensile strength, when preparing non-woven fabric, particularly spunbond non-woven fabric.

Resin composition for bi-component fiber

A propylene copolymer resin composition capable of improving softness while maintaining excellent strength properties when preparing nonwoven fabrics, and a method for preparing the same are provided. The propylene copolymer resin composition includes a propylene-ethylene copolymer having an ethylene content of 12 to 18 wt % in the propylene-ethylene copolymer and a propylene-1-butene random copolymer satisfying the following conditions (i) to (iv), wherein (i) 1-butene content of 1 to 5 wt % in the propylene-1-butene random copolymer, (ii) molecular weight distribution of 2.4 or less, (iii) storage modulus of 1200 MPa or less at 25&#xb0; C., and (iv) phase angle of 5.5&#xb0; to 8&#xb0; at a glass transition temperature, and wherein a weight ratio of the propylene-1-butene random copolymer to the propylene-ethylene copolymer is 80:20 to 99:1.

Propylene copolymer resin composition and method for preparing the same

Provided is a propylene random copolymer having excellent processability. The propylene random copolymer according to the present invention may exhibit high stiffness and flexural modulus together with a low shrinkage ratio, thereby being usefully applied to articles for thin wall injection molding.

Propylene random copolymer

A homopolypropylene has i) a molecular weight distribution of less than 2.4; ii) a melt index (measured at 230&#xb0; C. under a load of 2.16 kg in accordance with ASTM D1238) of 5 to 3000 g/10 min; iii) a remaining stress ratio of 0.5% or less; and iv) a complex viscosity of 5 to 600 Pa&#xb7;s at an angular frequency of 1 rad/s and a complex viscosity of 5 to 300 Pa&#xb7;s at an angular frequency of 100 rad/s. A method for preparing the homopolyproylene is also provided. A molded article and a non-woven fabric are also provided.

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Daejeon, South Korea

Heekwang Park