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

Claim 15:
16. The method of preparing an ethylene oligomer of claim 15, wherein the organoboron compound-based cocatalyst is an organoboron compound represented by the following Chemical Formula 9:

[R31R32R33Y]+[B(C6R34pH5-p)4]−  [Chemical Formula 9]

wherein
Y is C or NH;
R31 to R33 are independently of one another hydrogen, C1-C20 alkyl, or C6-C20 aryl, and the alkyl or the aryl of R31 may be further substituted by one or more selected from the group consisting of C1-C20 alkyl and C6-C20 aryl;
R34 is fluoro, C1-C20 alkyl, or C1-C20 alkoxy, and the alkyl or the alkoxy of R34 may be further substituted by one or more fluoro(s); and
p is an integer of 3 to 5.