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US 10,472,302 B2Granted
Ligand compound, organic chromium compound, catalyst system for oligomerization of olefins, and method for oligomerization of olefins using the catalyst system
AssigneeLG Chem, Ltd.
InventorsYong Ho Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Ki Soo Lee
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Abstract
The present invention relates to a ligand compound, a catalyst system for oligomerization of olefins, and a method for oligomerization of olefins using the catalyst system. The catalyst system for oligomerization of olefins according to the present invention not only has excellent catalytic activity, but also exhibits high selectivity to 1-hexene or 1-octene, thus enabling more efficient preparation of alpha-olefin.
Claims4
A ligand compound comprising:
- two groups represented by the following Chemical Formula 1, and a linker connecting the two groups by four to seven consecutive carbon-carbon bonds:
- wherein in Chemical Formula 1:
- each X is phosphorous (P), and
- each of R1 to fC-R4 is independently a substituted or unsubstituted C1-10 alkyl group, a substituted or unsubstituted C4-10 cycloalkyl group, a substituted or unsubstituted C6-15 aryl group, a substituted or unsubstituted C7-15 arylalkyl group, or a substituted or unsubstituted C1-10 alkoxy group, and
- wherein the ligand compound is any one of the compounds represented by Chemical Formulae B-01, B-02, B-07 to B-11, B-14, B-15, B-17 and B-20, wherein the two groups represented by Chemical Formula 1 are represented by A or A′, and wherein A and A′ are identical to or different from each other:
2 more elements
Dependencies are inferred from the claim text.