Ligand compound, transition metal compound, and catalystic composition including the same

Patent metadata

Field	Value
Publication number	US-9822200-B2
Application number	US-201515110596-A
Country	US
Kind code	B2
Filing date	Nov 6, 2015
Priority date	Nov 7, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

The present invention relates to a novel ligand compound, a transition metal compound, and a catalytic composition including the same. The novel ligand compound and the transition metal compound of the present invention are useful as a polymerization reaction catalyst in preparing an olefin-based polymer having low density. In addition, an olefin polymer polymerized using a catalytic composition including the transition metal compound is capable of being prepared to a high molecular weight product having a low melt index (MI).

First claim

What is claimed is:

1. A transition metal compound represented by the following Chemical Formula 1:

wherein, in Chemical Formula 1,
R 1 is hydrogen; alkyl having 1 to 20 carbon atoms; alkoxy having 1 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; arylalkoxy having 7 to 20 carbon atoms; alkylaryl having 7 to 20 carbon atoms; or arylalkyl having 7 to 20 carbon atoms;
R 2 and R 3 are each independently hydrogen; alkyl having 1 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; or alkylaryl having 6 to 20 carbon atoms;
R 4 to R 9 are each independently hydrogen; alkyl having 1 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; alkylaryl having 7 to 20 carbon atoms; or arylalkyl having 7 to 20 carbon atoms;
two or more of R 2 and R 3 ; R 4 and R 5 ; R 6 and R 7 ; R 7 and R 8 ; and R 8 and R 9 are optionally linked to each other to form a ring;
Q is Si;
M is a group 4 transition metal; and
X 1 and X 2 are each independently hydrogen, halogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, aryl having 6 to 20 carbon atoms, alkylaryl having 7 to 20 carbon atoms, arylalkyl having 7 to 20 carbon atoms, alkylamino having 1 to 20 carbon atoms, arylamino having 6 to 20 carbon atoms or alkylidene having 1 to 20 carbon atoms.

2. The transition metal compound of claim 1 , wherein, in Chemical Formula 1, R 1 is alkyl having 1 to 20 carbon atoms; aryl having 6 to 20 carbon atoms; arylalkoxy having 7 to 20 carbon atoms; or arylalkyl having 7 to 20 carbon atoms;
R 2 and R 3 are each independently hydrogen; alkyl having 1 to 20 carbon atoms; or aryl having 6 to 20 carbon atoms;
R 4 to R 9 are each independently hydrogen; alkyl having 1 to 20 carbon atoms; or aryl having 6 to 20 carbon atoms; and
Q is Si.

3. The transition metal compound of claim 2 , wherein M is Ti, Hf or Zr.

4. The transition metal compound of claim 3 , wherein the compound represented by Chemical Formula 1 is represented by any one of the following chemical formulae:

5. A catalytic composition comprising the transition metal compound of claim 1 .

6. The catalytic composition of claim 5 , further comprising one or more cocatalysts, wherein the cocatalyst includes one or more selected from among the following Chemical Formulae 8 to 10:
—[Al(R 22 )-0] a -  [Chemical Formula 8]

wherein, in the formula, each R 22 represents independently a halogen radical; a hydrocarbyl radical having 1 to 20 carbon atoms; or a hydrocarbyl radical having 1 to 20 carbon atoms substituted with halogen; a is an integer of 2 or greater;
D(R 22 ) 3   [Chemical Formula 9]

wherein, in the formula, D is aluminum or boron; each R 22 represents independently as defined above;
[L-H] + [Z(A) 4 ] − or [L] + [Z(A) 4 ] −   [Chemical Formula 10]

wherein, in the formula, L is a neutral or cationic Lewis acid; H is a hydrogen atom; Z is a group 13 element; each A represents independently aryl having 6 to 20 carbon atoms or alkyl having 1 to 20 carbon atoms of which one or more hydrogen atoms are capable of being substituted with substituents; and the substituents are halogen, hydrocarbyl having 1 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms, or aryloxy having 6 to 20 carbon atoms.

7. The catalytic composition of claim 6 , further comprising a reaction hydrocarbon solvent.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Dong Eun
• Kim A Rim
• Gong Jin Sam
• Jung Seung Hwan
• Park Hae Woong

Classifications

• C07F7/28

  Titanium compounds · CPC title

• C07F7/10

  containing nitrogen {having a Si-N linkage} · CPC title

• C08F4/6592 Primary

  containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring · CPC title

• C07F7/02

  Silicon compounds · CPC title

• C08F4/65908

  in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+ · CPC title