08-08-2013 дата публикации
Номер: US20130203949A1
The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenylene ligand is fused with a heterocyclic thiophene ligand. Compared with the catalysts not fused with a heterocyclic thiophene ligand, the transition metal compound of the present invention as activated with a co-catalyst has higher catalytic activity in olefin polymerization and provides a polymer with higher molecular weight. 2. The transition metal compound as claimed in claim 1 , wherein M is titanium (Ti) claim 1 , zirconium (Zr) claim 1 , or hafnium (Hf);{'sup': 1', '2, 'Qand Qare independently methyl or chlorine;'}{'sup': 1', '2', '3', '4', '5, 'R, R, R, R, and Rare independently hydrogen or methyl; and'}{'sup': 6', '7', '8', '9', '10', '11', '12', '13, 'R, R, R, R, R, R, R, and Rare independently hydrogen.'}4. The precursor for transition metal compound as claimed in claim 3 , wherein R claim 3 , R claim 3 , R claim 3 , R claim 3 , and Rare independently hydrogen or methyl; and{'sup': 6', '7', '8', '9', '10', '11', '12', '13, 'R, R, R, R, R, R, R, and Rare independently hydrogen.'}6. The method as claimed in claim 5 , wherein R claim 5 , R claim 5 , R claim 5 , R claim 5 , and Rare independently hydrogen or methyl; and{'sup': 6', '7', '8', '9', '10', '11', '12', '13, 'R, R, R, R, R, R, R, and Rare independently hydrogen.'}8. The catalyst composition as claimed in claim 7 ,{'sup': 1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13, 'wherein in the formula 1, R, R, R, R, and Rare independently hydrogen or methyl, and R, R, R, R, R, R, R, and Rare independently hydrogen;'}{'sup': '61', 'in the formula 6, Ris methyl;'}{'sup': 71', '71, 'in the formula 7, D is aluminum, and Ris methyl or isobutyl; or D is boron, and Ris pentafluorophenyl; and'}{'sup': +', ...
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