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US 10,570,221 B2Granted
Metallocene supported catalyst and method for preparing polyolefin using the same
AssigneeLG Chem, Ltd.
InventorsYoung Suk You, Sung Ho Park, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Eun Young Shin, Hyun Jee Kwon, Jin Young Lee
Life of this patent
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Abstract
The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.
Claims9
A metallocene supported catalyst comprising:
- one or more kinds of metallocene compounds,
- two or more kinds of cocatalyst compounds, and
- a carrier,
- wherein the cocatalyst compounds include a first cocatalyst compound represented by the following Chemical Formula 1 and diethyl zinc as a second cocatalyst compound, and
- the diethyl zinc is included in the content of 0.1 to 3 mmol/g, based on the weight (g) of the carrier, and at least a part of the diethyl zinc is supported on the first cocatalyst compound:
- —[Al(Ra)—O]n— [Chemical Formula 1]
- wherein, in Chemical Formula 1,
- each Ra is identical to or different from each other, and are independently a halogen, a C1-20 hydrocarbon, or a C1-20 hydrocarbon substituted with a halogen;
- and
- n is an integer of 2 or more.
7 more elements
A method for preparing a metallocene supported catalyst comprising:
- supporting two or more kinds of cocatalyst compounds including a first cocatalyst compound and a second cocatalyst compound on a carrier,
- and then supporting one or more kinds of metallocene compounds,
- wherein the first cocatalyst compound is a compound represented by the following Chemical Formula 1 and the second cocatalyst compound is diethyl zinc, and
- the diethyl zinc is supported in the content of 0.1 to 3 mmol/g based on the weight (g) of the carrier, after the first cocatalyst compound is supported:
- —[Al(Ra)—O]n— [Chemical Formula 1]
- wherein, in Chemical Formula 1,
- each Ra is identical to or different from each other, and are independently a halogen, a C1-20 hydrocarbon, or a C1-20 hydrocarbon substituted with a halogen;
- and
- n is an integer of 2 or more.
6 more elements
Dependencies are inferred from the claim text.