Patent ID: 11911749
Assignee: SK INNOVATION CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 5:
6. The chromium catalyst precursor of claim 1, wherein M1 is boron (B) or aluminum (Al); R is a halogen or C1-C10 alkoxy; W is acetonitrile (ACN), tetrahydrofuran (THF), diethyl ether, or water (H2O); m is an integer of 2 to 4; x is an integer of 1 to 6; and L is an acac-based ligand having the following structure:, wherein
R1 and R3 are independently of each other C1-C10 alkyl or C6-C20 aryl, and the alkyl and the aryl of R1 and R3 may be further substituted by one or more substituents selected from halogens, C1-C10 alkyl, C6-C20 aryl, haloC1-C10 alkyl, and haloC6-C20 aryl;
R2 is hydrogen, a halogen, C1-C10 alkyl, or C6-C20 aryl, and the alkyl and the aryl of R2 may be further substituted by one or more selected from halogens, C1-C10 alkyl, C6-C20 aryl, haloC1-C10 alkyl, and haloC6-C20 aryl; and
R1 and R2 or R3 and R2 may be linked by C3-C10 alkylene, C3-C10 alkenylene, C6-C20 arylene, C3-C10 heteroalkylene, C3-C10 heteroalkenylene, or C6-C20 heteroarylene to form a ring.