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WO2018127772A1 - Nouveau composé de métal de transition, composition de catalyseur contenant celui-ci, procédé de production d'homopolymère d'éthylène ou de copolymère d'éthylène et d'une alpha-oléfine l'utilisant - Google Patents

Nouveau composé de métal de transition, composition de catalyseur contenant celui-ci, procédé de production d'homopolymère d'éthylène ou de copolymère d'éthylène et d'une alpha-oléfine l'utilisant Download PDF

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Publication number
WO2018127772A1
WO2018127772A1 PCT/IB2017/058413 IB2017058413W WO2018127772A1 WO 2018127772 A1 WO2018127772 A1 WO 2018127772A1 IB 2017058413 W IB2017058413 W IB 2017058413W WO 2018127772 A1 WO2018127772 A1 WO 2018127772A1
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Prior art keywords
alkyl
aryl
ethylene
transition metal
olefin
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PCT/IB2017/058413
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English (en)
Korean (ko)
Inventor
한용규
오연옥
김명일
함형택
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사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디
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Priority claimed from KR1020170174314A external-priority patent/KR102034133B1/ko
Application filed by 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디 filed Critical 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디
Publication of WO2018127772A1 publication Critical patent/WO2018127772A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F19/00—Metal compounds according to more than one of main groups C07F1/00 - C07F17/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/52—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides selected from boron, aluminium, gallium, indium, thallium or rare earths
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/642—Component covered by group C08F4/64 with an organo-aluminium compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/646—Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group C08F4/64
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring

Definitions

  • the present invention relates to a novel transition metal compound, an ethylene homopolymer comprising the same or a transition metal catalyst composition having high catalytic activity for preparing a copolymer of ethylene and at least one ⁇ -olefin, and an air of ethylene homopolymer or ethylene and ⁇ -olefin using the same. It relates to a method for producing the coalescence.
  • Ziegler-Natta catalyst systems composed of a main catalyst component of a titanium or vanadium compound and a cocatalyst component of an alkylaluminum compound have been generally used for preparing a homopolymer of ethylene or a copolymer of? -Olefin.
  • the Ziegler-Natta catalyst system exhibits high activity against ethylene polymerization, but due to its heterogeneous catalytic activity, the molecular weight distribution of the resulting polymer is generally wide, and in particular, the composition distribution is not uniform in the copolymer of ethylene and ⁇ -olefin. There was this.
  • the metallocene catalyst system composed of a metallocene compound of Group 4 transition metal such as titanium, zirconium, and hafnium and methylaluminoxane as a promoter is a homogeneous catalyst having a single catalytic activity point.
  • polyethylene has narrower molecular weight distribution and uniform composition distribution.
  • the Group 4 transition metal on the periodic table has a rigid planar structure and is a ligand rich in electrons and widely delocalized.
  • Another object of the present invention is to provide a method for economically preparing an ethylene homopolymer or a copolymer of ethylene and an -olefin using a catalyst composition comprising the transition metal compound from a commercial point of view.
  • Another object of the present invention is a simple synthesis route, which is very economical in terms of catalytic synthesis, and has a high activity in olefin polymerization, and an ethylene homopolymer or ethylene and ⁇ - having various physical properties.
  • An object of the present invention is to provide a polymerization method in which copolymers of olefins can be economically produced from a commercial point of view.
  • One aspect of the present invention for achieving the above object relates to a novel transition metal compound based on a cyclopenta [ a ] naphthalene group represented by the following formula (1).
  • the electrons are goods rich and widely bipyeon-cyclopenta [a] naphthalene (Cyclopenta [a] naphthalene), which while having a Group 4 transition metal a hard (rigid) plane structure on the periodic table as a central metal group; and the solubility and A phenoxy group substituted with an aryl or heteroaryl which is easily introduced with a substituent to help improve the performance; a transition having a structure in which the cyclopenta [ a ] naphthalene group and the phenoxy group are connected by silyl; It relates to a metal compound.
  • M is a transition metal of Group 4 on the periodic table
  • R 1 to R 3 are each independently hydrogen, (C1-C20) alkyl, (C6-C20) aryl, (C3-C20) cycloalkyl, halogen, (C2-C20) alkenyl, (C3-C20) heteroaryl , (C3-C20) heterocycloalkyl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6 , wherein R 2 and R 3 may or may not include an aromatic ring (C3-C7 May be linked to alkylene or (C3-C7) alkenylene to form a fused ring;
  • R 4 and R 5 are each independently (C1-C20) alkyl, halo (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C1-C20) alkyl (C6-C20) Aryl, (C6-C20) aryl (C1-C20) alkyl, (C3-C20) heteroaryl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6, or R 4 and R 5 May be linked with (C 4 -C 7) alkylene to form a ring;
  • R 6 to R 8 are each independently hydrogen, (C1-C20) alkyl, halo (C1-C20) alkyl, halogen, (C6-C20) aryl, (C3-C20) cycloalkyl, halogen, (C2-C20) Alkenyl, (C3-C20) heteroaryl, (C1-C20) heterocycloalkyl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6, or R 6 to R 8 are adjacent substituents May be linked to (C4-C7) alkenylene with or without aromatic rings to form fused rings;
  • Ar 1 is (C6-C20) aryl or (C3-C20) heteroaryl, wherein the aryl or heteroaryl of Ar 1 is halogen, (C1-C20) alkyl, halo (C1-C20) alkyl, (C6-C20) Aryl, (C1-C20) alkyl (C6-C20) aryl, (C6-C20) aryl (C1-C20) alkyl, -OR a1 , -SR a2 , -NR a3 R a4 and -PR a5 R a6 May be further substituted with one or more selected from;
  • R a1 to R a6 are each independently (C1-C20) alkyl or (C6-C20) aryl;
  • Alkyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl of R 1 to R 3 and R 6 to R 8 and alkyl or aryl of R a1 to R a6 are halogen, (C 1 -C 20) alkyl, halo (C 1-) C20) alkyl, (C1-C20) alkoxy, (C6-C20) aryl, (C6-C20) aryloxy, nitro, cyano, -OSiR b1 R b2 R b3 , -SR b4 , -NR b5 R b6 and- May be further substituted with one or more selected from the group consisting of PR b7 R b8 ;
  • R b1 to R b8 independently of one another are (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl or ( C3-C20) cycloalkyl;
  • X 1 and X 2 are each independently halogen, (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C6-C20) aryl (C1-C20) alkyl, ((C1- C20) alkyl (C6-C20) aryl) (C1-C20) alkyl, (C1-C20) alkoxy, (C6-C20) aryloxy, (C1-C20) alkyl (C6-C20) aryloxy, (C1-C20 ) Alkoxy (C6-C20) aryloxy, OSiR a R b R c , -SR d , -NR e R f , -PR g R h or (C1-C20) alkylidene;
  • R a to R d independently of one another are (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl or ( C3-C20) cycloalkyl;
  • R e to R h are independently of each other (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl, ( C3-C20) cycloalkyl, tri (C1-C20) alkylsilyl or tri (C6-C20) arylsilyl;
  • the heteroaryl and heterocycloalkyl include one or more heteroatoms selected from N, O and S.
  • Another aspect of the present invention for achieving the above object is a transition metal compound of Formula 1; And a cocatalyst selected from an aluminum compound, a boron compound, or a mixture thereof.
  • the present invention relates to a transition metal catalyst composition for preparing an ethylene homopolymer or a copolymer of ethylene and an ⁇ -olefin.
  • Another aspect of the present invention for achieving the above object relates to a method for producing an ethylene homopolymer or a copolymer of ethylene and ⁇ -olefin using the catalyst composition.
  • the transition metal compound or the catalyst composition comprising the transition metal compound according to the present invention can be easily produced by a simple method of high yield and economical method due to the simple synthesis process, and also has excellent thermal stability of the catalyst and high catalytic activity even at high temperature. While maintaining a good copolymerization reactivity with other olefins and can produce a high molecular weight polymer in high yield, it is commercially viable compared to the known metallocene and non-metallocene-based single-site catalyst. Therefore, the transition metal and the catalyst composition including the same according to the present invention can be usefully used for the preparation of ethylene homopolymer or copolymer with ⁇ -olefin having various physical properties.
  • the transition metal compound according to the embodiment of the present invention solid the cyclopentadiene [a] naphthalene Group 4 transition metals on the periodic table as a transition metal compound, the central metal based groups (Cyclopenta [a] naphthalene) represented by the following general formula (1) ( rigid) cyclopentanone which electrons are abundant and widely delocalized while having a planar structure [a] naphthalene (cyclopenta [a] naphthalene) group; the solubility and the substituent that can help improve performance easily introduced available aryl or heteroaryl It is connected by a substituted phenoxy (phenoxy) group, and has a structure in which the cyclopenta [ a ] naphthalene group and the phenoxy group is connected by silyl, has an advantageous structural advantage in obtaining a high efficiency and high molecular weight ethylene polymer have.
  • the central metal based groups represented by the following general formula (1) ( rigid) cyclopentanone
  • M is a transition metal of Group 4 on the periodic table
  • R 1 to R 3 are each independently hydrogen, (C1-C20) alkyl, (C6-C20) aryl, (C3-C20) cycloalkyl, halogen, (C2-C20) alkenyl, (C3-C20) heteroaryl , (C3-C20) heterocycloalkyl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6 , wherein R 2 and R 3 may or may not include an aromatic ring (C3-C7 May be linked to alkylene or (C3-C7) alkenylene to form a fused ring;
  • R 4 and R 5 are each independently (C1-C20) alkyl, halo (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C1-C20) alkyl (C6-C20) Aryl, (C6-C20) aryl (C1-C20) alkyl, (C3-C20) heteroaryl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6, or R 4 and R 5 May be linked with (C 4 -C 7) alkylene to form a ring;
  • R 6 to R 8 are each independently hydrogen, (C1-C20) alkyl, halo (C1-C20) alkyl, halogen, (C6-C20) aryl, (C3-C20) cycloalkyl, halogen, (C2-C20) Alkenyl, (C3-C20), (C1-C20) heterocycloalkyl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6, or R 6 to R 8 are adjacent substituents and aromatic rings May be linked to (C4-C7) alkenylene with or without forming a fused ring;
  • Ar 1 is (C6-C20) aryl or (C3-C20) heteroaryl, wherein the aryl or heteroaryl of Ar 1 is halogen, (C1-C20) alkyl, halo (C1-C20) alkyl, (C6-C20) Aryl, (C1-C20) alkyl (C6-C20) aryl, (C6-C20) aryl (C1-C20) alkyl, -OR a1 , -SR a2 , -NR a3 R a4 and -PR a5 R a6 May be further substituted with one or more selected from;
  • R a1 to R a6 are each independently (C1-C20) alkyl or (C6-C20) aryl;
  • Alkyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl of R 1 to R 3 and R 6 to R 8 and alkyl or aryl of R a1 to R a6 are halogen, (C 1 -C 20) alkyl, halo (C 1-) C20) alkyl, (C1-C20) alkoxy, (C6-C20) aryl, (C6-C20) aryloxy, nitro, cyano, -OSiR b1 R b2 R b3 , -SR b4 , -NR b5 R b6 and- May be further substituted with one or more selected from the group consisting of PR b7 R b8 ;
  • R b1 to R b8 independently of one another are (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl or ( C3-C20) cycloalkyl;
  • X 1 and X 2 are each independently halogen, (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C6-C20) aryl (C1-C20) alkyl, ((C1- C20) alkyl (C6-C20) aryl) (C1-C20) alkyl, (C1-C20) alkoxy, (C6-C20) aryloxy, (C1-C20) alkyl (C6-C20) aryloxy, (C1-C20 ) Alkoxy (C6-C20) aryloxy, -OSiR a R b R c , -SR d , -NR e R f , -PR g R h or (C1-C20) alkylidene;
  • R a to R d independently of one another are (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl or ( C3-C20) cycloalkyl;
  • R e to R h are independently of each other (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl, ( C3-C20) cycloalkyl, tri (C1-C20) alkylsilyl or tri (C6-C20) arylsilyl;
  • the heteroaryl and heterocycloalkyl include one or more heteroatoms selected from N, O and S.
  • alkyl refers to a monovalent straight or branched saturated hydrocarbon radical consisting solely of carbon and hydrogen atoms, examples of which alkyl radicals are methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl , Pentyl, hexyl, octyl, nonyl, and the like.
  • aryl refers to an organic radical derived from an aromatic hydrocarbon by one hydrogen removal, wherein a single or fused ring contains 4 to 7, preferably 5 or 6 ring atoms, as appropriate for each ring. It includes a system, including a form in which a plurality of aryl is connected by a single bond.
  • Fused ring systems can include aliphatic rings, such as saturated or partially saturated rings, and necessarily include one or more aromatic rings.
  • the aliphatic ring may include nitrogen, oxygen, sulfur, carbonyl, and the like in the ring.
  • aryl radical examples include phenyl, naphthyl, biphenyl, indenyl, fluorenyl, phenanthrenyl, anthracenyl, triphenylenyl, pyrenyl, chrysenyl, naphthacenyl, 9,10-dihydro Anthracenyl and the like.
  • heteroaryl refers to an aryl group containing 1 to 4 heteroatoms selected from N, O and S as the aromatic ring skeleton atom, and wherein the remaining aromatic ring skeleton atom is carbon.
  • heteroaryl in the present invention also includes a form in which one or more heteroaryl is connected by a single bond.
  • heteroaryl group examples include pyrrole, quinoline, isoquinoline, pyridine, pyrimidine, oxazole, thiazole, thiadiazole, triazole, imidazole, benzoimidazole, isoxazole, benzoisoxazole, thiophene, Benzothiophene, furan, benzofuran and the like.
  • cycloalkyl herein refers to a monovalent saturated carbocyclic radical composed of one or more rings.
  • examples of cycloalkyl radicals include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and the like.
  • halo or halogen refers to a fluorine, chlorine, bromine or iodine atom.
  • haloalkyl refers to alkyl substituted with one or more halogens, and examples thereof include trifluoromethyl and the like.
  • alkoxy and aryloxy refer to -O-alkyl radicals and -O-aryl radicals, where “alkyl” and “aryl” are as defined above.
  • the transition metal compound of Formula 1 according to the present invention is a ethylene homopolymer synthesized because a ligand compound of a specific structure is bonded to the transition metal, has high catalytic activity, and can easily control the electronic / stereoscopic environment around the transition metal.
  • properties such as chemical structure, molecular weight distribution and mechanical properties of the copolymer with ⁇ -olefin can be easily adjusted.
  • the transition metal compound of Formula 1 may be a transition metal compound represented by the following formula (2) or:
  • M, R 4 , R 5 , R 7 , R 8 , Ar 1 , X 1 and X 2 are the same as defined in Formula 1;
  • R 1 to R 3 are each independently hydrogen, (C1-C20) alkyl, (C6-C20) aryl, (C3-C20) cycloalkyl, halogen, (C2-C20) alkenyl, (C3-C20) heteroaryl , (C3-C20) heterocycloalkyl, -OR a1 , -SR a2 , -NR a3 R a4 or -PR a5 R a6 ;
  • R a1 to R a6 are each independently (C1-C20) alkyl or (C6-C20) aryl;
  • the alkyl, aryl, cycloalkyl, heteroaryl or heterocycloalkyl of R 1 to R 3 and the alkyl or aryl of R a1 to R a6 are halogen, (C1-C20) alkyl, halo (C1-C20) alkyl, (C1 -C20) alkoxy, (C6-C20) aryl, (C6-C20) aryloxy, nitro, cyano, -OSiR b1 R b2 R b3 , -SR b4 , -NR b5 R b6 and -PR b7 R b8 May be further substituted with one or more selected from the group;
  • R b1 to R b8 independently of one another are (C1-C20) alkyl, (C6-C20) aryl, (C6-C20) ar (C1-C20) alkyl, (C1-C20) alkyl (C6-C20) aryl or ( C3-C20) cycloalkyl.
  • Ar 1 is phenyl, biphenyl, naphthyl, fluorenyl, pyrrolyl, quinolyl, isoquinolyl, pyridyl, pyrimidyl or carbazolyl
  • phenyl of Ar 1 , Biphenyl, naphthyl, fluorenyl, pyrrolyl, quinolyl, isoquinolyl, pyridyl, pyrimidyl or carbazolyl is halogen, (C1-C20) alkyl, halo (C1-C20) alkyl, (C6- C12) aryl, (C1-C10) alkyl (C6-C12) aryl, (C6-C12) aryl (C1-C10) alkyl, (C1-C10) alkoxy, (C6-C12) aryloxy, (C1-C10) Consisting of alkylthio, (C6-C)
  • the transition metal compound of Formula 1 may be more preferably a transition metal compound represented by the following formula (4) or (5):
  • R 1 to R 3 are each independently hydrogen, (C 1 -C 20) alkyl or halo (C 1 -C 20) alkyl;
  • R 4 and R 5 are each independently (C 1 -C 20) alkyl, halo (C 1 -C 20) alkyl or (C 6 -C 20) aryl;
  • R 7 and R 8 are each independently hydrogen, (C 1 -C 20) alkyl, halo (C 1 -C 20) alkyl or halogen, or R 7 and R 8 are , , or Connected to form a fused ring;
  • Ar 1 is , or ego
  • n is an integer from 1 to 5 and R 11 is (C1-C10) alkyl;
  • R 12 and R 13 are each independently (C 1 -C 20) alkyl
  • R 14 , R 15 and R 16 are each independently hydrogen or (C 1 -C 20) alkyl.
  • M of the transition metal compound is a transition metal of Group 4 on the periodic table, preferably titanium (Ti), zirconium (Zr) or hafnium (Hf).
  • R 1 to R 3 are each independently hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, n-pentyl Neopentyl, amyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-pentadecyl, phenyl, pyridyl, methoxy, ethoxy, butyl Methoxy, methylthio, ethylthio, dimethylamino, methylethylamino, diethylamino, diphenylamino, dimethylphosphine, diethylphosphine or diphenylphosphine, wherein R 2 and R 3
  • R 1 , R 2 and R 3 may be each independently hydrogen, (C 1 -C 20) alkyl, (C 1 -C 20) alkoxy or di (C 1 -C 20) alkylamino,
  • R 1 is hydrogen or (C 1 -C 10) alkyl, (C 1 -C 10) alkoxy or di (C 1 -C 10) alkylamino
  • R 2 and R 3 are each independently hydrogen or (C 1 -C 10) alkyl, R 2 and R 3 are , , or Can be connected to form a fused ring.
  • R 1 is hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, methoxy, ethoxy, butoxy, Dimethylamino, methylethylamino or diethylamino
  • R 2 and R 3 are each independently hydrogen, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl or tert -butyl, or R 2 and R 3 Can be connected to form a fused ring.
  • R 1 is hydrogen
  • R 2 and R 3 is Can be connected to form a fused ring.
  • R 1 is (C1-C10) alkyl, (C1-C10) alkoxy or di (C1-C10) alkylamino, and R 2 and R 3 are each independently hydrogen or (C1- C10) alkyl.
  • R 1 is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, methoxy, ethoxy, butoxy, dimethylamino, Methylethylamino or diethylamino
  • R 2 and R 3 may each independently be hydrogen, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl or tert -butyl.
  • R 4 and R 5 are each independently methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, n-pentyl, neo Pentyl, amyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-pentadecyl, fluoromethyl, trifluoromethyl, perfluoroethyl, Perfluoropropyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, phenyl, tolyl, xylyl, trimethylphenyl, tetramethyl
  • R 4 and R 5 are each independently (C 1 -C 20) alkyl, preferably (C 1 -C 10) alkyl, halo (C 1 -C 20) alkyl, preferably halo (C 1) -C10) alkyl or (C6-C20) aryl, preferably (C6-C12) aryl.
  • R 4 and R 5 may be each independently methyl, ethyl or phenyl.
  • R 6 to R 8 are each independently hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, n-pentyl , Neopentyl, amyl, n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-pentadecyl, fluoromethyl, trifluoromethyl, perfluoro Ethyl, perfluoropropyl, chloro, fluoro, bromo, phenyl, biphenyl, fluorenyl, triphenyl, naphthyl, anthracenyl, benzyl, naphthylmethyl, anthracenylmethyl, pyridyl,
  • R 6 to R 8 are each independently hydrogen, (C 1 -C 20) alkyl, preferably (C 1 -C 10) alkyl, halo (C 1 -C 20) alkyl, preferably halo It may be (C1-C10) alkyl or halogen.
  • R 6 to R 8 may be each independently hydrogen, methyl, ethyl, tert -butyl or fluoro.
  • R 6 is hydrogen
  • R 7 and R 8 are each independently hydrogen, (C 1 -C 20) alkyl, preferably (C 1 -C 10) alkyl, halo (C 1 -C 20) Alkyl, preferably halo (C1-C10) alkyl or halogen, wherein R 7 and R 8 are , , or Can be connected to form a fused ring.
  • R 6 and R 8 is hydrogen, R 7 is (C1-C10) alkyl or halogen, or R 7 and R 8 is Can be connected to form a fused ring.
  • R 6 and R 8 is hydrogen
  • R 7 may be methyl, ethyl, tert -butyl or fluoro, wherein R 7 and R 8 is Can be connected to form a fused ring.
  • Ar 1 is , or M is an integer from 1 to 5, R 11 is (C1-C10) alkyl, R 12 and R 13 are each independently (C1-C20) alkyl, and R 14 , R 15 and R 16 are each independently Hydrogen or (C1-C20) alkyl.
  • R 11 is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, n-pentyl, neopentyl, amyl, n- Hexyl or n-octyl
  • R 12 and R 13 are each independently methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec -butyl, tert -butyl, n-pentyl, neopentyl, amyl , n-hexyl, n-octyl, n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl or n-pentadecyl; R 14 , R 15 and R 16
  • R 11 is (C1-C10) alkyl
  • R 12 and R 13 are (C1-C20) alkyl
  • R 14 , R 15 and R 16 are each independently hydrogen Or (C1-C10) alkyl.
  • R 11 is (C1-C10) alkyl
  • R 12 , R 13 , R 15 and R 16 are each independently (C1-C20) alkyl, preferably (C1-C15) ) Alkyl, more preferably (C1-C10) alkyl
  • R 14 may be hydrogen.
  • X 1 and X 2 are each independently fluoro, chloro, bromo, methyl, ethyl, isopropyl, amyl, cyclopropyl, cyclobutyl, cyclopentyl, cichlorohexyl, phenyl , Naphthyl, benzyl, methoxy, ethoxy, isopropoxy, tert -butoxy, phenoxy, 4-tert-butylphenoxy, trimethylsiloxy, tert -butyldimethylsiloxy, dimethylamino, diphenylamino, Dimethylphosphine, diethylphosphine, diphenylphosphine, ethylthio or isopropylthio.
  • X 1 and X 2 may be (C 1 -C 20) alkyl, preferably (C 1 -C 10) alkyl or halogen, more preferably X 1 and X 2 are (C 1 -C10) alkyl.
  • X 1 and X 2 may be methyl or chloro, preferably methyl.
  • the transition metal compound may be selected from compounds having the following structure, but is not limited thereto.
  • the transition metal compound according to the present invention is preferably X 1 and X in the transition metal complex in order to be an active catalyst component used in the preparation of an ethylene polymer selected from ethylene homopolymers and copolymers of ethylene and ⁇ -olefins.
  • 2 Ligands can be catalyzed to the central metal and catalyze the counterion with weak binding ability, that is, an aluminum compound, a boron compound, or a mixture thereof, which can act as an anion, and act as a cocatalyst.
  • a catalyst composition comprising a is also within the scope of the present invention.
  • the aluminum compound which may be used as a promoter may be specifically an aluminoxane compound of Formula 6 or 7, an organoaluminum compound of Formula 8 or an organoaluminum oxide of Formula 9 or Formula 10 It may be one or two or more selected from compounds.
  • R 51 is (C1-C20) alkyl, preferably methyl or isobutyl, and n and q are each an integer of 5 to 20; R 52 and R 53 are each (C1-C20) alkyl; E is hydrogen or halogen; r is an integer from 1 to 3; R 54 is (C1-C20) alkyl or (C6-C20) aryl.
  • the aluminum compound which may be used include methyl aluminoxane, improved methyl aluminoxane and tetraisobutyl aluminoxane;
  • organoaluminum compounds are trialkylaluminum, dimethylaluminum chloride, diethylaluminum chloride, dipropylaluminum chloride, diisobutyl, including trimethylaluminum, triethylaluminum, tripropylaluminum, triisobutylaluminum, and trihexylaluminum
  • Dialkylaluminum chloride including aluminum chloride, and dihexyl aluminum chloride, methylaluminum dichloride, ethylaluminum dichloride, propylaluminum dichloride, isobutylaluminum dichloride, and alkylaluminum dichloride, including hexylaluminum dichloride, And dialkyl aluminum hydrides including dimethyl aluminum hydride,
  • the aluminum compound is preferably one or two or more mixtures selected from alkylaluminoxane compounds and trialkylaluminum, more preferably methylaluminoxanes, improved methylaluminoxanes, tetraisobutylalumina Or a mixture of two or more selected from noxic acid, trimethylaluminum, triethylaluminum, trioctylaluminum and triisobutylaluminum.
  • Boron compounds that can be used as cocatalysts in the present invention have been known in US Pat. No. 5,198,401, and may be selected from boron compounds represented by the following Chemical Formulas 11 to 13.
  • B is a boron atom
  • R 41 is phenyl, said phenyl being 3 to 5 substituents selected from fluoro, (C1-C20) alkyl unsubstituted or substituted with fluoro, and (C1-C20) alkoxy unsubstituted or substituted with fluoro; May be further substituted
  • R 42 represents a (C5-C7) aromatic radical or a (C1-C20) alkyl (C6-C20) aryl radical, a (C6-C20) aryl (C1-C20) alkyl radical, for example triphenylmethylium Radical
  • Z is nitrogen or phosphorus atom
  • R 43 is a (C1-C50) alkyl radical or an anninium radical substituted with two (C1-C10) alkyl with a nitrogen atom
  • p is an integer of 2 or 3.
  • Preferred examples of the boron-based cocatalysts include tris (pentafluorophenyl) borane, tris (2,3,5,6-tetrafluorophenyl) borane, tris (2,3,4,5-tetrafluoro Phenyl) borane, tris (3,4,5-trifluorophenyl) borane, tris (2,3,4-trifluorophenyl) borane, phenylbis (pentafluorophenyl) borane, tetrakis (Pentafluorophenyl) borate, tetrakis (2,3,5,6-tetrafluorophenyl) borate, tetrakis (2,3,4,5-tetrafluorophenyl) borate, tetrakis (3,4 , 5-tetrafluorophenyl) borate, tetrakis (2,2,4-trifluorophenyl) borate, phen
  • ferrocenium tetrakis (pentafluorophenyl) borate 1,1'- dimethyl ferrocenium tetrakis (pentafluorophenyl) borate, tetrakis (pentafluorophenyl) borate, and triphenyl Methylinium tetrakis (pentafluorophenyl) borate, triphenylmethyl tetrakis (3,5-bistrifluoromethylphenyl) borate, triethylammonium tetrakis (pentafluorophenyl) borate, tripropylammonium tetrakis ( Pentafluorophenyl) borate, tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, tri (n-butyl) ammonium tetrakis (3,5-bistri
  • the cocatalyst may serve as a scavenger to remove impurities that act as poisons to the catalyst in the reactants.
  • the preferred range of the ratio between the transition metal compound and the promoter of the present invention is based on the molar ratio ratio of the transition metal (M) to the aluminum atom (Al). 1: 10 to 5,000.
  • the preferred range of the ratio between the transition metal compound and the promoter of the present invention is a transition metal (M): boron atom on a molar ratio basis.
  • the molar ratio of (B): aluminum atom (Al) may be in the range of 1: 0.1 to 100: 10 to 3,000, more preferably in the range of 1: 0.5 to 5: 100 to 3,000.
  • the ratio between the transition metal compound and the promoter of the present invention is out of the above range, the amount of the promoter is relatively small so that the activation of the transition metal compound may not be completed, and thus the catalytic activity of the transition metal compound may not be sufficient, or more than necessary.
  • the use of cocatalysts can lead to a significant increase in production costs. It shows excellent catalytic activity for producing ethylene homopolymer or copolymer of ethylene and ⁇ -olefin within the above range, and the range of the ratio will vary depending on the purity of the reaction.
  • a method for preparing an ethylene polymer using the transition metal catalyst composition may be carried out by contacting the transition metal catalyst, the promoter, and ethylene or, if necessary, an ⁇ -olefin comonomer in the presence of a suitable organic solvent.
  • the transition metal catalyst and the cocatalyst component may be separately introduced into the reactor, or each component may be previously mixed and introduced into the reactor, and mixing conditions such as the order of input, temperature or concentration are not particularly limited.
  • Preferred organic solvents that can be used in the preparation method are (C3-C20) hydrocarbons, specific examples of which are butane, isobutane, pentane, hexane, heptane, octane, isooctane, nonane, decane, dodecane, cyclohexane, methylcyclo Hexane, benzene, toluene, xylene, etc. are mentioned.
  • ethylene when preparing the ethylene homopolymer, ethylene is used alone as a monomer, wherein a suitable pressure of ethylene is 1 to 1000 atm and more preferably 10 to 150 atm. Moreover, it is effective that polymerization temperature is performed at 25-200 degreeC, Preferably it is 50-180 degreeC, More preferably, it is 100-180 degreeC.
  • At least one selected from C3 to C18 ⁇ -olefins, C5 to C20 cycloolefins, styrene and derivatives of styrene may be used as a comonomer together with ethylene.
  • Preferred examples of the ⁇ -olefin of ⁇ C18 include propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1-decene, 1-undecene, 1-dodecene, It may be selected from the group consisting of 1- tetradecene, 1- hexadecene and 1-octadecene, preferred examples of C5-C20 cycloolefins are cyclopentene, cyclohexene, norbonene and phenylnorbornene Styrene and its derivatives may be selected from styrene, alpha-methylstyrene, p-methylstyrene and 3-chloromethylstyrene.
  • ethylene may be polymerized alone or copolymerized with two or more kinds of olefins, and more preferably 1-butene, 1-hexene, 1-octene or 1-decene and ethylene may be copolymerized.
  • the preferred ethylene pressure and polymerization temperature may be the same as in the case of preparing the ethylene homopolymer, and the copolymer prepared according to the method of the present invention usually contains 30 wt% or more of ethylene, and preferably 60 wt%. It contains at least% ethylene, more preferably in the range of 60 to 99% by weight.
  • the catalyst of the present invention when used, it has a density of 0.850 g / cc to 0.960 g / cc and a melt flow rate of 0.001 to 15 dg / min using ethylene and a C-C18 ⁇ -olefin as a comonomer. It can be easily and economically produced from the elastomer having a high density polyethylene (HDPE) region.
  • HDPE high density polyethylene
  • hydrogen may be used as a molecular weight regulator to control the molecular weight in the preparation of the ethylene homopolymer or copolymer according to the present invention, and generally has a weight average molecular weight (Mw) in the range of 5,000 to 1,000,000 g / mol.
  • the catalyst composition presented in the present invention is present in a uniform form in the polymerization reactor, it is preferable to apply to the solution polymerization process carried out at a temperature above the melting point of the polymer.
  • it may be used in slurry polymerization or gas phase polymerization in the form of a heterogeneous catalyst composition obtained by supporting the transition metal catalyst and the promoter on a porous metal oxide support.
  • Cyclohexane a polymerization solvent
  • a polymerization solvent was used after passing through a tube filled with molecular sieve 5 ⁇ and activated alumina and bubbling with high purity nitrogen to sufficiently remove moisture, oxygen, and other catalyst poisons.
  • the polymerized polymer was analyzed by the method described below.
  • Freeslate Rapid GPC was used to measure the solvent at 1,2,3-trichlorobenzene at 135 ° C. at a rate of 1.0 mL / min, and molecular weight was corrected using PL polystyrene standards.
  • the Bruker Avance400 nuclear magnetic resonance spectrometer was used to measure 13 C-NMR mode at 120 ° C. using a 1,2,4-trichlorobenzene / C 6 D 6 (7/3 weight fraction) mixed solvent at 125 MHz. (Reference: Randal, JC JMS- Rev. Macromol . Chem . Phys . 1980 , C29 , 201)
  • the ratio of ethylene and ⁇ -olefin of the copolymer was quantified using an infrared spectrometer.
  • PolymerChar A-CEF was used to measure the AF (amorphous fraction) of the polymer by branching distribution analysis of the polymer.
  • the reaction was cooled to room temperature and then the solvent was removed in vacuo under a nitrogen atmosphere. After removal of the solvent, warm methylcyclohexane was added to separate the byproducts through a celite filter. The filtrate obtained from the filter was dried in vacuo and a mixed solvent of methylcyclohexane and hexane was added to give a reddish brown precipitate at ⁇ 30 ° C. to obtain the title compound C in solid form.
  • Dissolved compound C (10 mmol) was dissolved in diethyl ether (100 mL), and a solution of MeMgBr (2.9 M in ether, 22 mmol) was slowly added at -30 ° C.
  • the reaction mixture was slowly warmed to room temperature and stirred for 22 hours, after which the solvent was removed in vacuo under nitrogen atmosphere.
  • the solvent was removed under vacuum under a nitrogen atmosphere after the filtrate obtained by adding warm hexane to celite filter.
  • the obtained solid was dissolved in hexane (70 mL) and treated again with a celite filter, and the filtrate was cooled to -30 ° C to give target compounds 1 to 5 as a yellow solid.
  • p-cresol (30.0 g, 277 mmol, 1 equiv) was dissolved in MeCN (3000 mL).
  • p-TSA p-Toluenesulfonic acid monohydrate
  • NIS N-iodosuccinimide
  • the formed product was extracted with ether (200 mL ⁇ 2), and the recovered organics were treated with aqueous Na 2 SO 3 solution and distilled water, and then dried over anhydrous Na 2 SO 4 to remove the solvent.
  • the resulting compound (2-iodo-4-methylphenol; 56.5 g, 87% yield) was used for the next reaction without further purification.
  • 2-iodo-4-methylphenol (56.5 g, 240 mmol, 1 equiv) was dissolved in anhydrous THF (250 mL) under a nitrogen atmosphere.
  • DIPEA N, N-Diisopropylethylamine
  • MOMCl Chloromethyl methyl ether
  • the organic layer was extracted with toluene (100 mL ⁇ 3), then treated with distilled water and anhydrous Na 2 SO 4 , and dried to obtain a crude product.
  • the crude product was purified by Kugelrohr distillation to give the target compound Compound E6 as a black oil (32.2g, 85% yield).
  • n- BuLi 2.5 M in hexanes, 91 mmol
  • compound G6 70 mmol
  • toluene 200 mL
  • dichlorodiethylsilane 210 mmol
  • the inorganic salts were removed through celite filtration, and after removing the solvent, excess dichlorodiethylsilane was removed in vacuo to obtain the target compound H6 (99% yield), which was used in the next reaction without further purification.
  • n- BuLi 2.5 M in hexanes, 31.6 mmol was slowly added dropwise to a THF (112 mL) solution of 2-methyl-9bH-cyclopenta [a] naphthalene (30.1 mmol) at -78 ° C.
  • the reaction mixture was raised to room temperature and then stirred for 2 hours. After stirring was complete, the mixture was cooled to -78 ° C, and then a toluene (14 mL) solution of compound H6 (33.1 mmol) was added through a syringe.
  • the reaction mixture solution was raised to room temperature, stirred for 3 hours, and added to distilled water (200 mL) to terminate the reaction.
  • Comparative Catalyst 1 was prepared using the method of Examples 1 to 5.
  • Comparative Catalyst 2 was prepared using the method of Examples 1 to 5.
  • the reaction solution was transferred to a pressure vessel, followed by Pd (dba) 2 (0.83 g, 1.00 mmol, 0.01 equiv), RuPhos [S. Buchwald, J. Am. Chem . Soc . , 2004 , 126 (40), 13028-13032] (1.92 g, 4.00 mmol, 0.04 equiv) and 2-bromo-1- (methoxymethoxy) -4-methylbenzene (23.7 g, 103 mmol, 1equiv) It was added in turn.
  • the reaction solution was diluted with THF (50 mL) and NMP (100 mL). After stirring the reaction solution at 100 ° C.
  • the obtained white solid (23.1 g, 74.0 mmol) was dissolved in a mixed solution of methanol (220 mL) and THF (220 mL), and HCl (aq) (12M, 2.2 mL) was added thereto, followed by stirring at 60 ° C. for 12 hours. Distilled water (1000 mL) was added to terminate the reaction. After completion of the reaction, the product was extracted by treatment with ether (200 mL x 2), and then treated with distilled water, dried over anhydrous Na 2 SO 4 and the solvent was removed to give the compound a in the form of a white solid (19.3 g, 97% ).
  • Comparative Catalyst 3 was prepared in the same manner as Compound 6 of Example 6 (91% yield).
  • the ethylene / 1-hexene copolymerization process is as follows:
  • the polymerization was carried out in a temperature controlled continuous polymerization reactor equipped with a mechanical stirrer.
  • 1-hexene 120 ⁇ L, 150
  • toluene were added to bring the total volume to 5 mL.
  • the temperature of the reactor was adjusted to the polymerization temperature (110 ° C. or 150 ° C.), and then the stirring speed was set to 800 rpm.
  • Ethylene was added at 220 psi for 150 ° C. and 200 psi for 110 ° C. in order to keep the ethylene constant according to the polymerization temperature.
  • the amount of catalyst used was 5 nmole, 8 nmole, 10 nmole, 15 nmole or 20 nmole, and the amount of the promoter relative to the polymerization catalyst was fixed at 5 equivalents.
  • polymerization catalyst was introduced into the reactor, polymerization was initiated while adding 5 equivalents of the cocatalyst TTB (triphenylmethylium tetraethyls (pentafluorophenyl) borate). The polymerization reaction proceeded for 45 seconds to 5 minutes, or the polymerization was terminated at a time when the resulting polymer did not exceed 100 to 200 mg.
  • TTB triphenylmethylium tetraethyls
  • the reactor temperature was cooled to room temperature and ethylene in the reactor was slowly evacuated to remove.
  • the resulting polymer was then dried in vacuo.
  • Example 20 at the polymerization temperature 150 °C it can be confirmed that the activity is 15 times or more, 34.5 times or more and 6.7 times higher than Comparative Examples 5, 7 and 9, respectively.
  • the polymerization activity of the catalysts was higher than 2.7 times, 44 times, and 1.7 times higher than Comparative Examples 4, 6, and 8, respectively, showing high polymerization characteristics.
  • Comparative Examples 4 to 7 of the polymerization results using the catalysts of Comparative Examples 1 to 2 in the polymerization property to 1-hexene, which is a comonomer, in order that the 1-hexene content in the copolymer was about 10 mol%, the polymerization was performed. 200 ⁇ L to 400 ⁇ L of comonomer should be added. However, in the case of polymerization Examples 7 to 20 using the catalysts of Examples 1 to 5, even if 120 ⁇ L to 150 ⁇ L of comonomer was added, the same comonomer content was contained in the copolymer. .
  • the amount of the comonomer added was about 30 to 75% of the comonomer input compared to the case of using the catalysts of Comparative Examples 1 to 2, which contained the same level of comonomer. It was found that one copolymer could be prepared.
  • This characteristic means that the catalysts of Examples 1 to 5 structurally have higher reactivity to the comonomers than the catalysts of Comparative Examples 1 to 2, and can produce products of lower density at lower concentrations of comonomers. It means that there is.
  • the molecular weight distribution of the polymer may be considered as a factor that may affect the polymer properties as well as the comonomer content in the prepared polymer.
  • the molecular weight distribution was in the range of 2.4 to 2.8 (Comparative Examples 4 and 5), whereas when the polymerization was performed using the catalysts of Examples 1 to 5, the polymerization was relatively very high. It can be confirmed that it has a molecular weight distribution of 1.9-2.3 which is a narrow molecular weight distribution (Examples 7-20).
  • the transition metal compound or the catalyst composition comprising the transition metal compound according to the present invention can be easily produced by a simple method of high yield and economical method due to the simple synthesis process, and also has excellent thermal stability of the catalyst and high catalytic activity even at high temperature. While maintaining a good copolymerization reactivity with other olefins and can produce a high molecular weight polymer in high yield, it is commercially viable compared to the known metallocene and non-metallocene-based single-site catalyst. Therefore, the transition metal and the catalyst composition including the same according to the present invention can be usefully used for the preparation of ethylene homopolymer or copolymer with ⁇ -olefin having various physical properties.

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Abstract

La présente invention concerne un nouveau composé de métal de transition basé sur un groupe cyclopenta [a] naphtalène, une composition de catalyseur de métal de transition comprenant celui-ci qui a une activité catalytique élevée pour produire un homopolymère d'éthylène ou un copolymère d'éthylène et au moins une alpha-oléfine, et un procédé de production d'un homopolymère d'éthylène ou d'un copolymère d'éthylène et d'alpha-oléfine l'utilisant. Un composé métallocène selon la présente invention et une composition de catalyseur les comprenant fournissent une excellente stabilité thermique d'un catalyseur et, par conséquent, tout en maintenant une activité catalytique élevée à des températures élevées, une excellente réactivité de copolymérisation avec d'autres oléfines est présentée et des polymères ayant un poids moléculaire élevé peuvent être produits à un rendement élevé.
PCT/IB2017/058413 2017-01-09 2017-12-27 Nouveau composé de métal de transition, composition de catalyseur contenant celui-ci, procédé de production d'homopolymère d'éthylène ou de copolymère d'éthylène et d'une alpha-oléfine l'utilisant WO2018127772A1 (fr)

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CN113501850A (zh) * 2021-07-06 2021-10-15 山东京博石油化工有限公司 一种桥连含氮杂环茂金属化合物、其制备方法及应用
CN113501850B (zh) * 2021-07-06 2023-08-15 山东京博石油化工有限公司 一种桥连含氮杂环茂金属化合物、其制备方法及应用

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