Transition metal compound having heteroatom, catalyst composition including the same and preparation method of polymer using the catalyst composition

Patent metadata

Field	Value
Publication number	US-10011624-B2
Application number	US-201515327572-A
Country	US
Kind code	B2
Filing date	Dec 24, 2015
Priority date	Dec 24, 2014
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

The present invention discloses a transition metal compound including a heteroatom and having a novel structure, a catalyst composition including the same, and a preparation method of a polymer using the catalyst composition. The transition metal compound according to an embodiment of the present invention may be used as a catalyst having good copolymerization properties, and a polymer having a high molecular weight at a low density region may be prepared.

First claim

The invention claimed is:

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

in the above Formula 1,
M is a transition metal in group 4,
Q 1 and Q 2 are each independently hydrogen; halogen; alkyl having 1 to 20 carbon atoms; alkenyl having 2 to 20 carbon atoms; aryl having 7 to 20 carbon atoms; alkylaryl having 6 to 20 carbon atoms; arylalkyl having 7 to 20 carbon atoms; alkyl amido having 1 to 20 carbon atoms; or aryl amido having 6 to 20 carbon atoms;
R 1 is hydrogen; 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; or arylalkyl having 7 to 20 carbon atoms;
R 2 and R 3 are each independently hydrogen; silyl; 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; or a metalloid radical of a metal in group 14, substituted with hydrocarbyl having 1 to 20 carbon atoms;
R 2 and R 3 are optionally connected to each other to form an aliphatic ring having 5 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms,
wherein the aliphatic ring or the aromatic ring is optionally substituted with halogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, or aryl having 6 to 20 carbon atoms, and
R 4 to R 16 are each independently hydrogen; 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; or arylalkyl having 7 to 20 carbon atoms.

2. The transition metal compound of claim 1 , wherein Q 1 and Q 2 are each independently hydrogen, halogen or alkyl having 1 to 20 carbon atoms, and
R 1 to R 16 are each independently hydrogen or alkyl having 1 to 20 carbon atoms.

3. The transition metal compound of claim 1 , wherein Q 1 and Q 2 are each independently alkyl having 1 to 6 carbon atoms,
R 1 , R 4 and R 5 are each independently hydrogen or alkyl having 1 to 6 carbon atoms, and
R 2 , R 3 and R 6 to R 16 are hydrogen.

4. The transition metal compound of claim 1 , wherein Q 1 , Q 2 and R 1 are alkyl having 1 to 6 carbon atoms, and
R 2 to R 16 are hydrogen.

5. The transition metal compound of claim 1 , wherein Q 1 , Q 2 and R 1 are alkyl having 1 to 6 carbon atoms,
R 4 and R 5 are each independently hydrogen or alkyl having 1 to 6 carbon atoms,
both R 4 and R 5 are not hydrogen at the same time, and
R 2 , R 3 and R 6 to R 16 are hydrogen.

6. The transition metal compound of claim 1 , wherein M is Ti, Hf or Zr.

7. The transition metal compound of claim 1 , wherein the transition metal compound represented by Formula 1 is a compound represented by the following Formula 2 or Formula 3:

where the compound of Formula 3 is a racemic body of (R) and (S).

8. A catalyst composition comprising the transition metal compound according to claim 1 .

9. The catalyst composition of claim 8 , further comprising at least one kind of a co-catalyst.

10. The catalyst composition of claim 9 , wherein the co-catalyst comprises at least one selected from the following Formulae 4 to 6:
—[Al(R 22 )—O] a —  [Formula 4]

in the above formula, each R 22 is independently a halogen radical; a hydrocarbyl radical having 1 to 20 carbon atoms; or a halogen substituted hydrocarbyl radical having 1 to 20 carbon atoms; and a is an integer of at least 2;
D(R 22 ) 3   [Formula 5]

in the above formula, D is aluminum or boron; and each R 22 is the same as described above;
[L-H] + [Z(A) 4 ] − or [L] + [Z(A) 4 ] −   [Formula 6]

in the above formula, L is a neutral or a cationic Lewis acid; H is a hydrogen atom; Z is an element in group 13; each A is independently aryl having 6 to 20 carbon atoms or alkyl having 1 to 20 carbon atoms, where at least one hydrogen atom are optionally and independently be substituted with a substituent; and the substituent is halogen, hydrocarbyl having 1 to 20 carbon atoms, alkoxy having 1 to 20 carbon atoms or aryloxy having 6 to 20 carbon atoms.

11. The catalyst composition of claim 8 , further comprising a reaction solvent.

12. A preparation method of an olefin polymer comprising performing a polymerization reaction in the presence of the catalyst composition described in claim 8 .

13. The preparation method of an olefin polymer of claim 12 , wherein the polymer is a homopolymer or a copolymer of polyolefin.

Assignees

• Lg Chemical Ltd

Inventors

• Do Young Shil
• Gong Jin Sam
• Lee Yun Jin
• Lee Choong Hoon
• Jung Seung Hwan

Classifications

• C08F4/65908

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

• C08F4/6592 Primary

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

• C08F4/65916

  supported on a carrier, e.g. silica, MgCl2, polymer · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• B01J31/38

  of titanium, zirconium or hafnium · CPC title