A METALLOCENE COMPOUND, A CATALYST COMPOSITION COMPRISING THE SAME, AND A METHOD OF PREPARING AN OLEFINIC POLYMER BY USING THE SAME (AS AMENDED)

• US 20160168281A1
• Filed: 10/11/2013
• Published: 06/16/2016
• Est. Priority Date: 08/01/2013
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: SONG, Eun Kyoung, CHO, Kyung Jin, KWON, Hyuck Ju, CHOI, Yi Young, KWON, Heon Yong, CHO, Min Seok, HONG, Dae Sik, LEE, Yong Ho, LEE, Ki Soo, KIM, Se Young, LEE, Sung Min
• Granted Patent: US 9,725,533 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B01J 2531/48 Zirconium
• CPC Class Codes: B01J 31/12 containing organo-metallic compounds or metal hydrides
• CPC Class Codes: B01J 31/1616 Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts catalysts comprising molecular sieves B01J29/00
• CPC Class Codes: B01J 31/2295 Cyclic compounds, e.g. cyclopentadienyls
• CPC Class Codes: C07F 17/00 Metallocenes
• CPC Class Codes: C07F 7/00 Compounds containing elements of Groups 4 or 14 of the Periodic Table
• CPC Class Codes: C07F 7/0803 Compounds with Si-C or Si-Si linkages
• CPC Class Codes: C08F 10/00 Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• CPC Class Codes: C08F 10/02 Ethene
• CPC Class Codes: C08F 110/02 Ethene
• CPC Class Codes: C08F 210/14 Monomers containing five or more carbon atoms
• CPC Class Codes: C08F 210/16 Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
• CPC Class Codes: C08F 2420/06 Cp analog where at least one of the carbon atoms of the non-coordinating part of the condensed ring is replaced by a heteroatom
• CPC Class Codes: C08F 2500/01 High molecular weight, e.g. >800,000 Da.
• CPC Class Codes: C08F 2500/03 Narrow molecular weight distribution, i.e. Mw/Mn < 3
• CPC Class Codes: C08F 4/65908 in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
• CPC Class Codes: C08F 4/65912 in combination with an organoaluminium compound
• CPC Class Codes: C08F 4/65927 two cyclopentadienyl rings being mutually bridged

Abstract

The present invention relates to a novel metallocene compound, a catalyst composition including the same, and a method of preparing an olefinic polymer by using the same. The metallocene compound according to the present invention and the catalyst composition comprising the same can be used for producing olefinic polymers, have outstanding polymerizing ability, and can produce olefinic polymers of ultra high molecular weight. In particular, when the metallocene compound according to the present invention is employed, an olefinic polymer of ultra high molecular weight can be obtained because it shows high polymerization activity even when it is supported on a carrier and maintains high activity even in the presence of hydrogen because of its low hydrogen reactivity.

Claims

1. A metallocene compound represented by the following Chemical Formula 1:

2. The metallocene compound according to claim 1, wherein R₁ to R₁₇ and R₁′

to R₉′

in Chemical Formulae 2a, 2b and 3 are independently hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, tert-butyl group, pentyl group, hexyl group, heptyl group, octyl group, phenyl group, a halogen group, trimethylsilyl group, triethylsilyl group, tripropylsilyl group, tributylsilyl group, triisopropylsilyl group, trimethylsilylmethyl group, methoxy group, or ethoxy group.

3. The metallocene compound according to claim 1, wherein L in Chemical Formula 1 is a C₄-C₈ linear or branched alkylene group.

4. The metallocene compound according to claim 1, wherein A in Chemical Formula 1 is hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, tert-butyl group, methoxymethyl group, tert-butoxybutyl group, 1-ethoxyethyl group, 1-methyl-1-methoxyethyl group, tetrahydropyranyl group, or tetrahydrofuranyl group.

5. The metallocene compound according to claim 1, wherein the compound represented by Chemical Formula 2a is one of the compounds represented by the following structural formulae:

6. The metallocene compound according to claim 1, wherein the compound represented by Chemical Formula 2b is one of the compounds represented by the following structural formulae:

7. The metallocene compound according to claim 1, wherein the compound represented by Chemical Formula 3 is one of the compounds represented by the following structural formulae:

8. The metallocene compound according to claim 1, wherein the compound represented by Chemical Formula 1 is one of the compounds represented by the following structural formulae:

9. A catalyst composition, including the metallocene compound of claim 1 and a cocatalyst.

10. The catalyst composition according to claim 9, wherein the cocatalyst includes one or more of the compounds represented by Chemical Formulae 4 to 6:

—

[Al(R18)-O]_n—

 

 

[Chemical Formula 4]

in Chemical Formula 4,

each R18 may be same or different, and is independently a halogen;

a C₁-C₂₀ hydrocarbon;

or a halogen-substituted C₁-C₂₀ hydrocarbon; and

n is an integer of 2 or more;

J(R18)₃ 

 

[Chemical Formula 5]

in Chemical Formula 5,

R18 is same as that in Chemical Formula 4; and

J is aluminum or boron;

[E-H]⁺[ZA′

₄]⁻

or [E]⁺[ZA′

₄]⁻

 

 

[Chemical Formula 6]

in Chemical Formula 6,

E is a neutral or cationic Lewis acid;

H is hydrogen atom;

Z is group 13 element; and

each A′

may be same or different, and is independently a C₆-C₂₀ aryl group or a C₁-C₂₀ alkyl group of which at least one hydrogen atom is unsubstituted or substituted with a halogen, a C₁-C₂₀ hydrocarbon, an alkoxy, or phenoxy.

11. The catalyst composition according to claim 10, wherein the catalyst is supported on a carrier.

12. The catalyst composition according to claim 11, wherein the carrier is one or more carriers selected from the group consisting of silica, silica-alumina, and silica-magnesia.

13. A method of preparing an olefinic polymer, including the step of polymerizing olefinic monomers in the presence of the catalyst composition according to claim 9.

14. The method of preparing an olefinic polymer according to claim 13, wherein the polymerization reaction is carried out according to a solution polymerization process, slurry process, or a gas phase process.

15. The method of preparing an olefinic polymer according to claim 13, wherein the olefinic monomer is one or more monomers selected from the group consisting of ethylene, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 1-decene, 1-undecene, 1-dodecene, 1-tetradecene, 1-hexadecene, and 1-eicosene.

16. An olefinic polymer prepared by the preparation method according to claim 13.

17. The olefinic polymer according to claim 16, of which the weight average molecular weight is 50,000 to 3,000,000 g/mol.