| US 7,589,042 B2 | ||
| Arylphenoxy catalyst system for producing ethylene homopolymer or copolymers of ethylene and α-olefins | ||
| Tae-Woo Woo, Daejeon (Korea, Republic of); Myung-Ahn Ok, Daejeon (Korea, Republic of); Jong-sok Hahn, Daejeon (Korea, Republic of); Mal-Ou Lee, Daejeon (Korea, Republic of); Sang-Ook Kang, Seoul (Korea, Republic of); Sung-bo Ko, Daejeon (Korea, Republic of); Tae-Jin Kim, Seoul (Korea, Republic of); and Sung Kun Kim, Seoul (Korea, Republic of) | ||
| Assigned to SK Corporation, Seoul (Korea, Republic of) | ||
| Filed on Feb. 06, 2007, as Appl. No. 11/671,794. | ||
| Application 11/671794 is a continuation in part of application No. 11/280930, filed on Nov. 15, 2005. | ||
| Claims priority of application No. 10-2005-0059354 (KR), filed on Jul. 01, 2005. | ||
| Prior Publication US 2007/0135297 A1, Jun. 14, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C08F 4/64 (2006.01); C08F 4/6592 (2006.01); C08F 210/02 (2006.01); B01J 31/22 (2006.01) | ||
| U.S. Cl. 502—152 [502/103; 526/131; 526/160; 526/165; 526/348] | 21 Claims |
1. An arylphenoxy-based transition metal catalyst for producing ethylene homopolymer or copolymers of ethylene and α-olefins
which is expressed by Formula 1, which includes a cyclopentadienyl derivative and arylphenoxide as fixed ligands around a
transition metal, the arylphenoxide being substituted with at least one aryl derivative and being located at an ortho position
thereof, and the ligands not being crosslinked to each other:
 wherein M is a group 4 transition metal of a periodic table;
Cp is a cyclopentadienyl anion capable of forming an η5-bond along with the central metal, or a derivative thereof;
R1, R2, R3, R4, R5, R6, R7, and R8 of the arylphenoxide ligand are independently a hydrogen atom, a halogen atom, a C1-C20 linear or nonlinear alkyl group, a
silyl group which contains the C1-C20 linear or nonlinear alkyl group, a C6-C30 aryl group, a C7-C30 arylalkyl group, a C1-C20
alkylalkoxy group, or a C3-C20 alkyl-substituted siloxy group or C6-C20 aryl-substituted siloxy group;
each X is independently selected from the group consisting of a halogen atom, a C1-C20 alkyl group which is not the Cp derivative,
a C7-C30 arylalkyl group, an alkoxy group which contains a C1-C20 alkyl group, a C3-C20 alkyl-substituted siloxy group, and
an amido group which has a C1-C20 hydrocarbon group;
Y is a hydrogen atom, a halogen atom, a C1-C20 linear or nonlinear alkyl group, a silyl group which contains a C1-C20 linear
or nonlinear alkyl group, a C6-C30 aryl group, a C7-C30 arylalkyl group, a C1-C20 alkylalkoxy group, a C3-C20 alkyl-substituted
siloxy group or C6-C20 aryl-substituted siloxy group, a amido group or a phosphido group which has the C1-C20 hydrocarbon
group, or a C1-C20 alkyl-substituted mercapto or nitro group; and n is 1 or 2 depending on an oxidation value of the transition
metal.
|