Back to results
US 12,358,938 B2Granted
Transition metal compound and method of preparing polypropylene using the same
AssigneeLG Chem, Ltd.
InventorsInsun Lee, Seok Hwan Kim, Byung Seok Kim, Donghyeon Gwon, Seyoung Kim
Life of this patent
Estimating the term…
Abstract
Provided are a novel transition metal compound of the following Chemical Formula 1 that exhibits excellent catalytic activity, allows formation of a macromonomer which is a polymer in which a double bond is formed at the end of a chain, and improves a melt strength characteristic when used in polymerizing polypropylene, and a method of preparing a polypropylene using the same. wherein A, M, R1 to R10, X1 and X2, Y1 and Y2 and m are described herein.
Claims14
A transition metal compound represented by Chemical Formula 1:
- in Chemical Formula 1,
- A is an element of Group 14;
- M is a transition metal of Group 4,
- R1 to R5 are each independently linear C1-6 alkyl,
- R6 is C6-20 aryl unsubstituted or substituted with linear or branched C1-8 alkyl,
- R7 to R9 are each independently hydrogen, or two adjacent groups of R7 to R9 combine with each other to form a cyclopentyl group,
- R10 is each independently hydrogen,
- one of X1 or X2 is S, and the other is a single bond,
- Y1 and Y2 are each independently halogen, and
- m is an integer of 4.
7 more elements
Dependencies are inferred from the claim text.