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US 2020/0369701 A1Published application
Metallocene-Supported Catalyst and Method for Preparing Polypropylene Using the Same
AssigneeLG Chem, Ltd.
InventorsJae Youp Cheong, Heon Yong Kwon, Daesik Hong, Sangjin Jeon
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Abstract
A supported catalyst including a novel metallocene compound having excellent polymerization activity, and a method for producing polypropylene by polymerizing propylene in the presence of the catalyst are provided. The metallocene-supported catalyst of the present invention can produce a polypropylene having a relatively narrow molecular weight distribution and a SPAN value.
Claims9
A metallocene-supported catalyst comprising:
- a metallocene compound represented by the following Chemical Formula 1, and
- a support
- wherein, in Chemical Formula 1,
- n is an integer from 4 to 10,
- R1 and R2 are the same as or different from each other, and each independently, an aryl having 6 to 20 carbon atoms or an aryl having 6 to 20 carbon atoms substituted with an alkyl having 1 to 20 carbon atoms;
- R3 is an alkyl group having 1 to 20 carbon atoms;
- R4 is a tertiary amine having an alkyl group having 1 to 10 carbon atoms;
- A is carbon, silicon or germanium;
- and
- each X is the same as or different from each other, and each independently, a halogen or an alkyl group having 1 to 20 carbon atoms.
7 more elements
Dependencies are inferred from the claim text.