Hybrid supported metallocene catalyst

Patent metadata

Field	Value
Publication number	US-9926395-B2
Application number	US-201415026544-A
Country	US
Kind code	B2
Filing date	Oct 15, 2014
Priority date	Oct 18, 2013
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

The present invention relates to a hybrid supported metallocene catalyst. More specifically, the present invention relates to a hybrid supported metallocene catalyst using two or more different types or more of metallocene compounds, among which one type of the metallocene compounds shows a high polymerization activity even when it is supported, and thus the catalyst has an excellent activity and can be utilized in the polymerization of olefinic polymers having ultra-high molecular weight. Based on the hybrid supported metallocene catalyst of the present invention, an olefinic polymer having high molecular weight and the desired physical property can be prepared.

First claim

What is claimed is:

1. A hybrid supported metallocene catalyst which comprises at least one first metallocene compound selected from the group consisting of

at least one second metallocene compound selected from the group consisting of [tBu-O—(CH 2 ) 6 —C 5 H 4 ] 2 ZrCl 2 and [tBu-O—(CH 2 ) 6 (CH 3 )Si(C 5 (CH 3 ) 4 ](tBu-N)TiCl 2 , a cocatalyst compound and a support, wherein the cocatalyst comprises a first cocatalyst represented by the following Chemical Formula 6 and a second cocatalyst compound represented by the following Chemical Formula 7:
—[Al(R 18 )—O—] k —  [Chemical Formula 6]

in Chemical Formula 6, R 18 is independently halogen, or unsubstituted or halogen-substituted hydrocarbyl group having 1 to 20 carbon atoms; and k is an integer of 2 or more,
T + [BG 4 ] −   [Chemical Formula 7]

in Chemical Formula 7, T + is N,N-dimethylanilinium, B is boron in an oxidation state of +3, and G is pentafluorophenyl.

2. The hybrid supported metallocene catalyst according to claim 1 wherein the weight ratio of the transition metal in the first metallocene compound and the second metallocene compound to the support is 1:10 to 1:1.000.

3. The hybrid supported metallocene catalyst according to claim 1 wherein the weight ratio of the cocatalyst compound to the support is 1:1 to 1:100.

Assignees

• Lg Chemical Ltd

Inventors

• Hong Dae Sik
• Kwon Heon Yong
• Song Eun Kyoung
• Lee Yong Ho
• Cho Kyung Jin
• Lee Ki Soo
• Choi Yi Young

Classifications

• B01J31/2295

  Cyclic compounds, e.g. cyclopentadienyls · CPC title

• C08F4/6592

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

• C07F17/00

  Metallocenes · CPC title

• C08F4/65916

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

• C08F4/65927

  two cyclopentadienyl rings being mutually bridged · CPC title