Compounds, catalyst composition comprising the same, and method for preparing of cycloolefin-based polymer using the same
AssigneeLG Chem, Ltd.
InventorsYoung-Chul Won, Sung-Ho Chun, Dai-Seung Choi, Dong-Woo Yoo, Bun-Yeoul Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to a novel metallocene compound, a catalyst composition including the compound and an olefin polymer prepared using the same. The metallocene compound and the catalyst composition can be used for preparing the olefin polymer with high copolymerization degree and high molecular weight. Particularly, the block copolymer with high heat resistance can be prepared by using the metallocene compound, and the olefin polymer with high melting point (Tm) can be obtained, even if co-monomer is used at an increased amount in preparation of olefin polymer.
Claims13
A compound represented by Chemical formula 1:
- {[H—P(R1)3]+}2[(C6F5)3B—Z—B(C6F5)3]2− Chemical formula 1
- wherein,
- R1 is the same or different from each other and is independently selected from the group consisting of hydrogen, a linear or branched C1-C20 alkyl group, a substituted or unsubstituted C3-C12 cycloalkyl group, a substituted or unsubstituted C6-C40 aryl group, a substituted or unsubstituted C7-C15 aralkyl group, a substituted or unsubstituted C7-C15 aralkenyl, and a substituted or unsubstituted C2-C20 alkynyl group;
- Z is a group connecting two boron atoms by a covalent bond, which is selected from the group consisting of a linear or branched C1-C20 alkylene group, a substituted or unsubstituted C3-C12 cycloalkylene group, a substituted or unsubstituted C6-C40 arylene group, a substituted or unsubstituted C7-C15 aralkylene group, a substituted or unsubstituted C2-C20 alkenylene group, and C2-C20 alkylene group.
A catalyst composition comprising a precatalyst of Group 10 metal compounds represented by Chemical formula 2 and a co-catalyst of a compound represented by Chemical formula 1:
- {[H—P(R1)3]+}2[(C6F5)3B—Z—B(C6F5)3]2− Chemical formula 1
- wherein,
- R1 is the same or different from each other and is independently selected from the group consisting of hydrogen, a linear or branched C1-C20 alkyl group, a substituted or unsubstituted C3-12 cycloalkyl group, a substituted or unsubstituted C6-40 aryl group, a substituted or unsubstituted C7-15 aralkyl group, a substituted or unsubstituted C7-C15 aralkyl, a substituted or unsubstituted C7-C15 aralkenyl, and a substituted or unsubstituted C2-C20 alkynyl group;
- and
- Z is a group connecting two boron atoms by a covalent bond, which is selected from the group consisting of a linear or branched C1-C20 alkylene group, a substituted or unsubstituted C3-C12 cycloalkylene group, a substituted or unsubstituted C6-C40 arylene group, a substituted or unsubstituted C7-C15 aralkylene group, a substituted or unsubstituted C2-C20 alkenylene group, and C2-C20 alkylene group;
- [Ma(R)b(L1)c] Chemical formula 2
- wherein,
- M is Group 10 metal;
- R is a hydrocarbyl ligand;
- L1 is a neutral ligand;
- and
- a is 1 or 2, b is 0 or 2, c is 0 or 3, with proviso that a, b and c satisfy the formulae of 0<b+c≦3 and 3≦a+b+c≦5.
Dependencies are inferred from the claim text.