Polypropylene
AssigneeLG Chem, Ltd.
InventorsJi Ho Choi, In Yong Jung, Kyung Seop Noh, Won-Sang Lee, Sang Jin Jeon, Sang Eun An, Sang Hoon Lee
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Abstract
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 μg/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.
Claims9
A polypropylene having a TVOC (total volatile organic compounds) value of 60 μg/g or less, which is measured according to VDA 277 standardized by the German Association of the Automobile Industry and means a value obtained by heating the polypropylene at 120° C. for 5 hours and converting all hydrocarbons detected per 1 g of the polypropylene into the content of acetone;
- having a haze of 5% or less;
- a weight average molecular weight of 100,000 to 145,000 g/mol;
- and
- a molecular weight distribution (Mw/Mn) of 2.9 or less.
Dependencies are inferred from the claim text.