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US 2022/0017657 A1Published application
Hybrid Supported Catalyst and Method of Preparing Polyolefin Using the Same
AssigneeLG Chem, Ltd.
InventorsSun Mi Kim, Ue Ryung Seo, Bog Ki Hong, Eun Kyoung Song, Daesik Hong, Si Jung Lee, Cheolhwan Jeong, Kiju Um
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Abstract
Provided are a hybrid supported catalyst which includes two or more kinds of transition metal compounds having the following Chemical Formulas 1 and 2, thereby preparing a polyolefin, particularly, a high-density polyethylene having a molecular structure which is optimized to improve tensile strength of a chlorinated polyolefin compound, and a method of preparing a polyolefin using the same: wherein all the variables are described herein.
Claims17
A hybrid supported catalyst comprising:
- one or more of a first transition metal compound represented by the following Chemical Formula 1;
- one or more of a second transition metal compound represented by the following Chemical Formula 2;
- and
- a support on which the first and second transition metal compounds are supported:
- (Cp1R11)m(Cp2R12)M1(Z1)3-m [Chemical Formula 1]
- in Chemical Formula 1,
- M1 is a transition metal of Group 4;
- Cp1 and Cp2 are the same as or different from each other, and each independently, any one selected from the group consisting of cyclopentadienyl, indenyl, 4,5,6,7-tetrahydro-1-indenyl, and fluorenyl radicals, which are unsubstituted or substituted with C1-20 hydrocarbon;
- R11 and R12 are the same as or different from each other, and each independently, hydrogen, C1-20 alkyl, C1-20 alkoxy, C2-20 alkoxyalkyl, C6-20 aryl, C6-20 aryloxy, C2-20 alkenyl, C7-40 alkylaryl, C7-40 arylalkyl, C8-40 arylalkenyl, C2-20 alkynyl, or C2-20 heteroaryl comprising one or more heteroatoms selected from the group consisting of N, O, and S;
- Z1 is halogen, C1-20 alkyl, C2-20 alkenyl, C7-40 alkylaryl, C7-40 arylalkyl, C6-20 aryl, an amino group, C2-20 alkylalkoxy, or C7-40 arylalkoxy;
- and
- m is 1 or 0;
- in Chemical Formula 2,
- A is carbon or silicon,
- M2 is a transition metal of Group 4,
- R21 is C6-20 aryl substituted with C1-20 alkyl,
- R22 is C3-20 branched alkyl,
- R23 to R25 are each independently C1-20 alkyl,
- Z21 and Z22 are each independently halogen or C1-10 alkyl, and
- n is an integer of 1 to 10.
17 more elements
Dependencies are inferred from the claim text.