Lg Chem, Ltd

In Yong Jung

Kyung Seop Noh

Sang Jin Jeon

Seong Min Chae

Taejin Kim

Sang Hoon Lee

Heekwang Park

Jihwa Ye

Ji Ho Choi

Sang Eun An

Won-Sang Lee

Daeyeon Lee

Ha Na Park

The present invention provides a homopolypropylene having high strength and a low content of low molecular weights together with excellent processability, and a preparation method thereof.

Polypropylene and method for preparing the same

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.

Homopolypropylene and method for preparing the same

The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 &#x3bc;g/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.

Polypropylene

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Daejeon, South Korea

In Yong Jung