WO2019123028A1 - 금속-리간드 착체, 이를 포함하는 에틸렌계 중합용 촉매 조성물 및 이를 이용한 에틸렌계 중합체의 제조방법 - Google Patents
금속-리간드 착체, 이를 포함하는 에틸렌계 중합용 촉매 조성물 및 이를 이용한 에틸렌계 중합체의 제조방법 Download PDFInfo
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- 0 CC(C)(C)CC(C)(C)c1cc(I)c(*)cc1 Chemical compound CC(C)(C)CC(C)(C)c1cc(I)c(*)cc1 0.000 description 4
- OYFFSPILVQLRQA-UHFFFAOYSA-N CC(C)(C)c1ccc2[nH]c3ccc(C(C)(C)C)cc3c2c1 Chemical compound CC(C)(C)c1ccc2[nH]c3ccc(C(C)(C)C)cc3c2c1 OYFFSPILVQLRQA-UHFFFAOYSA-N 0.000 description 1
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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
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
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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
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/28—Titanium compounds
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- 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
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- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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
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- 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
-
- 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
Definitions
- the present invention relates to metal-ligand complexes, a catalyst composition for ethylenic polymerization comprising the same, and a process for producing an ethylene polymer using the same.
- copolymers of ethylene and alpha-olefins or copolymers of ethylene and olefins-dienes generally employ the so-called Ziegler-Natta catalyst system consisting of the main catalyst component of titanium or vanadium compound and the cocatalyst component of alkylaluminum compound come.
- European Patent Publication Nos. 320,762, 372,632 or 63-092621, Nos. 02-84405 and 03-2347 disclose that Cp 2 TiCl 2 , Cp 2 ZrCl 2 , Cp (Mw / Mn) in the range of 1.5 to 2.0, by polymerizing ethylene in a high activity by activating the metallocene compound with the promoter methyl aluminoxane in the presence of a catalyst such as 2 ZrMeCl, Cp 2 ZrMe 2 , ethylene (IndH 4 ) 2 ZrCl 2 , Polyethylene can be produced.
- a catalyst such as 2 ZrMeCl, Cp 2 ZrMe 2 , ethylene (IndH 4 ) 2 ZrCl 2 , Polyethylene
- the present invention provides a metal-ligand complex having a specific substituent and a catalyst composition for ethylenic polymerization containing the same, in order to solve the above problems.
- the present invention also provides a process for producing an ethylene polymer using the catalyst composition for ethylene polymerization according to the present invention.
- the present invention provides a metal-ligand complex in which solubility in an organic solvent, particularly an aliphatic hydrocarbon, is remarkably improved, and the metal-ligand complex of the present invention is represented by the following formula (1).
- M is a transition metal of Group 4 on the Periodic Table
- R 'and R " are independently from each other (C1-C20) alkyl
- R 1 and R 2 are independently of each other halogen, (C 1 -C 20) alkyl, (C 1 -C 20) alkoxy or halo (C 1 -C 20) alkyl;
- R 3 is linear (C 8 -C 20) alkyl
- R 3 in formula (1) may be linear (C 8 -C 20) alkyl.
- R 3 is an alkyl, straight-chain (C8-C20), M is titanium, zirconium or hafnium, R 'and R''are independently (C1-C5 each other ) alkyl, R 1 and R 2 are the same halogen, (C1-C8) alkyl or (C1-C8) alkoxy each other, m may be an integer of 3.
- Formula 1 according to one embodiment of the present invention may be represented by Formula 2 below.
- M is titanium, zirconium or hafnium
- R 'and R " are independently from each other (C1-C5) alkyl
- R 1 and R 2 are, independently of each other, halogen, (C 1 -C 8) alkyl or (C 1 -C 8) alkoxy;
- R 3 is linear (C 8 -C 12) alkyl.
- a catalyst composition for ethylenic polymerization comprising the metal-ligand complex of the present invention and the cocatalyst of the present invention.
- the cocatalyst according to an embodiment of the present invention may be an aluminum compound cocatalyst, a boron compound cocatalyst, or a mixture thereof, and may be used in an amount of 0.5 to 10000 moles per mole of the metal-ligand complex.
- the present invention also provides a process for producing an ethylene polymer comprising polymerizing ethylene or an alpha-olefin with ethylene or an alpha-olefin in the presence of the ethylene-based polymerization catalyst composition of the present invention to produce an ethylene polymer.
- the polymerization according to one embodiment of the present invention can be carried out at 170 to 250 ° C.
- the metal-ligand complex according to an embodiment of the present invention can dramatically improve the solubility in a solvent by introducing a specific functional group having a controlled number of carbon atoms and form, thereby improving the polymerization process more efficiently.
- the metal-ligand complex according to an embodiment of the present invention has excellent activity of the catalyst due to the introduction of a specific functional group at a specific position, and is capable of polymerization even at a high polymerization temperature, and does not lower the activity of the catalyst.
- the metal-ligand complex according to an embodiment of the present invention has an advantage of being capable of easily polymerizing with high reactivity with olefins and capable of producing an ethylene polymer having a high molecular weight at a high polymerization temperature.
- the metal-ligand complex according to one embodiment of the present invention and the catalyst composition containing the metal-ligand complex can be very usefully used in the production of an ethylene polymer having excellent physical properties.
- substituents comprising "alkyl” and “alkoxy” as well as other “alkyl” moieties described herein include both straight-chain or branched forms and, unless otherwise stated, have 1 to 20 carbon atoms, preferably 1 to 15 , More preferably from 1 to 10 carbon atoms.
- the "(C8-C20) alkyl" which includes at least one of a nitrogen atom, an oxygen atom, a sulfur atom and a phosphorus atom described in the present specification refers to an alkyl group having from 8 to 20 carbon atoms and includes a nitrogen atom, an oxygen atom, A nitrogen atom, an oxygen atom, a sulfur atom and a phosphorus atom may be present between the carbon and carbon of the alkyl group, and may be present as a substituent of the alkyl group. Examples include, but are not limited to, alkoxy, aminoalkyl, secondary amines, and ether compounds.
- Haloalkyl as described herein is one in which at least one hydrogen of the alkyl group is replaced by a halogen, and the alkyl group may contain one or more halogens.
- the present invention relates to a process for producing a polyolefin resin, which has improved solubility, excellent thermal stability and high catalytic activity even at a high polymerization temperature by introducing a substituent having a controlled shape and carbon number at a specific position, And a metal-ligand complex represented by the general formula (1).
- M is a transition metal of Group 4 on the Periodic Table
- R 'and R " are independently from each other (C1-C20) alkyl
- R 1 and R 2 are independently of each other halogen, (C 1 -C 20) alkyl, (C 1 -C 20) alkoxy or halo (C 1 -C 20) alkyl;
- R 3 is linear (C 8 -C 20) alkyl
- the metal-ligand complex according to an embodiment of the present invention is represented by the above formula (1), and it can be produced by introducing straight chain (C8-C20) alkyl which is a substituent intentionally controlled to R 3 in formula
- the solubility is remarkably improved, and the catalyst activity is extremely high even at a high polymerization temperature.
- the metal-ligand complex according to an embodiment of the present invention is excellent in thermal stability, and can be produced at a high yield, with high polymerization activity and good polymerization reactivity with other olefins while maintaining high catalytic activity even at a high temperature.
- Commercial viability is higher than that of metallocene and non-metallocene single point catalysts.
- R 3 in formula (1) may be straight chain (C 8 -C 20) alkyl, more preferably straight chain (C 8 -C 12) alkyl.
- R 3 is linear (C 8 -C 20) alkyl
- M is titanium, zirconium or hafnium
- R 1 and R 2 are the same halogen, (C1-C8) alkyl or (C1-C8) alkoxy each other
- m may be an integer of 3.
- the compound of formula (1) in order to improve solubility, catalytic activity and reactivity with olefins, may be represented by the following formula (2).
- M is titanium, zirconium or hafnium
- R 'and R " are independently from each other (C1-C5) alkyl
- R 1 and R 2 are, independently of each other, halogen, (C 1 -C 8) alkyl or (C 1 -C 8) alkoxy;
- R 3 is linear (C 8 -C 12) alkyl.
- R 3 in formula (2) may be linear (C 8 -C 12) alkyl, more preferably R 3 may be n-octyl, n-nonyl, n-decyl, n-undecyl or n-dodecyl.
- the metal-ligand complex according to an embodiment of the present invention may be a compound selected from the following structures, but is not limited thereto.
- M is titanium, zirconium or hafnium; PrO-, BuO-, PentylO-, HexylO-, HeptylO-, OctylO-, Pr-, Butyl-, Pentyl-, Hexyl-, Heptyl- and Octyl- Includes both straight chain and branched chain.
- the present invention also provides a catalyst composition for ethylenic polymerization comprising a metal-ligand complex of the present invention and a cocatalyst.
- the promoter according to one embodiment of the present invention may be a boron compound promoter, an aluminum compound promoter, and a mixture thereof.
- the cocatalyst according to an embodiment of the present invention may be contained in a molar ratio of 0.5 to 10000 to 1 mole of the metal-ligand complex.
- the boron compound which can be used as a cocatalyst in the present invention is a boron compound which is known in U.S. Patent No. 5,198,401, and can be specifically selected from the compounds represented by the following formulas (11) to (13).
- B is a boron atom
- R 21 is a phenyl group, and the phenyl group is a fluorine atom, (C1-C20) alkyl group, substituted by fluorine atoms (C1-C20) alkyl, (C1-C20) substituted with an alkoxy group or a fluorine atom, (C1-C20 ) Alkoxy group; < / RTI >
- R 22 is a (C 5 -C 7) aromatic radical or a (C 1 -C 20) alkyl (C 6 -C 20) aryl radical or a (C 6 -C 20) aryl (C 1 -C 20) alkyl radical such as triphenylmethylium, Radical
- Z is a nitrogen or phosphorus atom
- R 23 is an (Cl-C20) alkyl radical or an anilinium radical substituted with two (C1-C10) alkyl groups
- boron-based co-catalysts include trityl tetrakis (pentafluorophenyl) borate, tris (pentafluorophenyl) borane, tris (2,3,5,6-tetrafluorophenyl) (2,3,4,5-tetrafluorophenyl) borane, tris (3,4,5-trifluorophenyl) borane, tris (2,3,4-trifluorophenyl) Tetrakis (pentafluorophenyl) borate, tetrakis (pentafluorophenyl) borate, tetrakis (2,3,5,6-tetrafluorophenyl) borate, tetrakis (2,3,4,5-tetra (2,2,4-trifluorophenyl) borate, phenylbis (pentafluorophenyl) borate or tetrakis (triphenyl
- these compounds include ferrocenium tetrakis (pentafluorophenyl) borate, 1,1'-dimethylferrocenium tetrakis (pentafluorophenyl) borate, silver tetrakis (pentafluorophenyl) borate, tri (Pentafluorophenyl) borate, triphenylmethylniniumtetrakis (3,5-bistrifluoromethylphenyl) borate, triethylammonium tetrakis (pentafluorophenyl) borate, tripropylammonium (Pentafluorophenyl) borate, tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, tri (n-butyl) ammonium tetrakis , N-dimethylanilinium tetrakis (pentafluorophenyl) borate,
- An example of an aluminum compound that can be used as a cocatalyst in a catalyst composition according to an embodiment of the present invention is an aluminoxane compound of Formula 14 or 15, an organoaluminum compound of Formula 16 or an organoaluminum alkyloxide of Formula 17 or Formula 18 Or an organoaluminum aryloxide compound.
- R 26 is Al (OR 27 ) 2
- R 24 is a (C 1 -C 20) alkyl group, preferably a methyl group or an isobutyl group, m and q are each independently an integer of 5 to 20; R 25 and R 26 independently from each other are a (C 1 -C 20) alkyl group; E is a hydrogen atom or a halogen atom; r is an integer from 1 to 3; R 27 is (C 1 -C 20) alkyl group or (C 6 -C 30) aryl group.
- the aluminum compound that can be used include aluminoxane compounds such as methyl aluminoxane, modified methyl aluminoxane, and tetraisobutyl aluminoxane;
- organoaluminum compound include trialkylaluminum including trimethylaluminum, triethylaluminum, tripropylaluminum, triisobutylaluminum, and trihexylaluminum;
- Dialkyl aluminum chlorides including dimethyl aluminum chloride, diethyl aluminum chloride, dipropyl aluminum chloride, diisobutyl aluminum chloride, and dihexyl aluminum chloride;
- Alkylaluminum dichlorides including methylaluminum dichloride, ethylaluminum dichloride, propylaluminum dichloride, isobutylaluminum dichloride, and hexylaluminum dichloride;
- Dialkylaluminum hydrides including dimethyl
- the preferred range of the ratio between the metal-ligand complex of the present invention and the cocatalyst is that the aluminum compound cocatalyst is a transition metal (M) :
- Aluminum atom (Al) may be from 1:50 to 1: 5,000 based on the molar ratio.
- a process for preparing an ethylene polymer using the catalyst composition for ethylenic polymerization comprising reacting the metal-ligand complex, the cocatalyst, and the ethylene or, if necessary, the vinyl polymer Can be carried out by contacting the comonomer.
- the catalyst and the catalyst component which are metal-ligand complexes, may be separately introduced into the reactor or may be preliminarily mixed with each other and introduced into the reactor. There is no particular limitation on the mixing conditions such as the order of introduction, temperature or concentration.
- Preferred organic solvents that may be used in the above process are C3-C20 hydrocarbons. Specific examples thereof include butane, isobutane, pentane, hexane, heptane, octane, isooctane, nonane, decane, dodecane, cyclohexane, methylcyclohexane , Benzene, toluene, xylene, and the like.
- C3-C18? -Olefins may be used as comonomers together with ethylene, preferably propylene, 1-butene, Pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 1-hexadecene, and 1-octadecene. More preferably, 1-butene, 1-hexene, 1-octene, or 1-decene and ethylene can be copolymerized.
- the preferable ethylene pressure and the polymerization reaction temperature may be 1 to 1000 atm for pressure, and more preferably 10 to 150 atm. It is also effective that the polymerization reaction is carried out at a temperature of 170 to 250 ° C, preferably 180 to 200 ° C.
- the copolymer prepared according to the process of the present invention usually contains not less than 50% by weight of ethylene, preferably contains not less than 60% by weight of ethylene, more preferably contains from 60 to 99% by weight of ethylene do.
- the linear low density polyethylene (LLDPE) prepared by using C4 to C10 alpha -olefin as the comonomer has a density region of 0.940 g / cc or less and an ultra low density polyethylene (VLDPE or ULDPE) or an olefin elastomeric region.
- VLDPE or ULDPE ultra low density polyethylene
- hydrogen may be used as a molecular weight modifier and has a weight average molecular weight (Mw) usually in the range of 80,000 to 500,000.
- the ethylene-propylene-diene copolymer has an ethylene content of 30 to 80% by weight, a propylene content of 20 to 70% , And an ethylene-propylene-diene copolymer having a diene content of 0 to 15% by weight can be prepared.
- the diene monomer which can be used in the present invention has two or more double bonds.
- Examples thereof include 1,4-hexadiene, 1,5-hexadiene, 1,5-heptadiene, 1,6- Octadiene, 1,7-octadiene, 1,7-nonadiene, 1,8-nonadiene, 1,8-decadiene, 1,9-decadiene, 1,12-tetradecadiene, 1 Methyl-1,4-hexadiene, 3-methyl-1,5-hexadiene, 3-ethyl-1,4-hexadiene, 3-ethyl- , 3,3-dimethyl-1,4-hexadiene, 3,3-dimethyl-1,5-hexadiene, 5-vinyl-2-norbornene, 5-norbornadiene, 7-ethyl-2,5-norbornadiene, 7-propyl-2,5-norbornadiene, Norbornadiene, 7-hexyl-2,5-norbornadiene, 7,7-dimethyl
- the preferred reactor pressure and temperature are from 1 to 1000 atm for pressure, more preferably from 5 to 100 atm. It is also effective to carry out the polymerization reaction at a temperature of 170 to 250 ° C, preferably 180 to 200 ° C.
- the ethylene content is 30 to 80 wt%
- the olefin content is 20 to 70 wt%
- the diene content is 0 to 15 wt% have.
- the molecular weight of the copolymer is lowered when the content of propylene is increased.
- the ethylene-propylene-diene copolymer according to the present invention It was possible to produce a product having a relatively high molecular weight without decreasing the molecular weight, even if it increased to 50%.
- the catalyst composition presented in the present invention is present in a uniform form in a polymerization reactor, it is preferable to apply to a solution polymerization process carried out at a temperature above the melting point of the polymer.
- it may also be used for slurry polymerization or gas-phase polymerization in the form of a non-uniform catalyst composition obtained by supporting a metal-ligand complex catalyst and a cocatalyst on a porous metal oxide support as disclosed in U.S. Patent No. 4,752,597.
- Cyclohexane a polymerization solvent
- the polymerized polymer was analyzed by the method described below.
- MI Melt Flow Index
- the solvent used herein was 1,2,4-trichlorobenzene, and the measurement temperature was 120 ⁇ ⁇ .
- Catalyst WC04 was prepared in the same manner as in Example 1, except that ligand WC04L was used instead of ligand WC03L in Example 1.
- Catalyst WC01 was prepared in the same manner as in Example 1 except that ligand WC01L was used instead of ligand WC03L in Example 1.
- Catalyst WC02 was prepared in the same manner as in Example 1, except that ligand WC02L was used instead of ligand WC03L in Example 1.
- Catalyst WB02 was prepared in the same manner as in Example 1 except that ligand WB02L was used instead of ligand WC03L in Example 1.
- Ligand WD01L was prepared in the same manner as in Example 1 except that 2-Iodo-4-octylphenol (Compound 3-1) was replaced with 2-Iodo-4-n-butylphenol.
- Catalyst WD01 was prepared in the same manner as in Example 1 except that ligand WD01L was used instead of ligand WC03L in Example 1.
- Ligand WD02L was prepared in the same manner as in Example 1 except that 2-Iodo-4-octylphenol (Compound 3-1) was replaced with 2-Iodo-4-n-hexylphenol.
- Catalyst WD02 was prepared in the same manner as in Example 1 except that the ligand WD02L was used instead of the ligand WC03L in Example 1.
- the polymerization was carried out in a temperature-controlled continuous polymerization reactor equipped with a mechanical stirrer.
- a methyl cyclohexane solvent, 1-octene and ethylene monomer were fed to a 1.0 L continuously stirred reactor preheated at a temperature of 130 to 200 ° C at a pressure of 40 bar.
- WC03 Example 1
- TTB Tetrakis-pentafluorophenyl Borate
- TiBAO Tetraisobutyl aluminoxane
- Methylcyclohexane as a reaction solvent was injected into the reactor in an amount of 5 kg per hour, and the reactor was injected into the reactor at a C2 / MCH ratio of 10 for a residence time of about 8 minutes and an ethylene amount of about 400 to 600 g per hour .
- the polymerization was carried out at a relatively high temperature of 180 ° C., 190 ° C. and 200 ° C., and the amount of the catalyst was supplied to the reactor while adjusting the feed temperature and the temperature difference between the reactor temperature and the reactor. After the pressure was reduced to 3 bar at the rear end, it was sent to a solvent separator, and most of the solvent was removed by a solvent separation process.
- Example 3 The polymerization was carried out in the same manner as in Example 3, except that WCO4 synthesized in Example 2 was used as a catalyst. The maximum temperature reached 158 ⁇ for a reaction time of 3 minutes, and 77 g of a polymer polymer was obtained. Polymerization reaction conditions and polymerization results are shown in Table 1 below.
- Example 3 The procedure of Example 3 was repeated except that WB02 synthesized in Comparative Example 3 was used as a precatalyst.
- the polymerization reaction conditions and polymerization results are shown in Table 2 below.
- Example 3 The procedure of Example 3 was repeated except that WC01 synthesized in Comparative Example 1 was used as a precatalyst.
- the polymerization reaction conditions and polymerization results are shown in Table 2 below.
- Example 3 The procedure of Example 3 was repeated except that WC02 synthesized in Comparative Example 2 was used as a precatalyst.
- the polymerization reaction conditions and polymerization results are shown in Table 2 below.
- Example 3 The procedure of Example 3 was repeated except that WD01 synthesized in Comparative Example 4 was used as a precatalyst.
- the polymerization reaction conditions and polymerization results are shown in Table 2 below.
- Example 3 The procedure of Example 3 was repeated except that WD02 synthesized in Comparative Example 5 was used as a precatalyst.
- the polymerization reaction conditions and polymerization results are shown in Table 2 below.
- the catalysts of the present invention (WC03 and WC04), in which a controlled number of carbon atoms and a specific type of substituent were introduced into R 3 of Formula 1 according to an embodiment of the present invention
- the reactivity with the active and comonomers is remarkably superior to that of the conventional WB02, WC01, WC02, WD01 and WD02, which are comparative examples.
- the prepolymers of the present invention can produce copolymers of ethylene and 1-octene with higher molecular weights than the precursors of the present invention.
- the copolymer prepared by copolymerizing ethylene and 1-octene at 180 DEG C had a molecular weight of 37,000 g / mole and 95,000 g / mole, respectively, while the copolymer of WC03 and WC04 of the present invention
- the molecular weight of the copolymer produced in one polymerization is 131,000 g / mole and 135,000 g / mole, respectively, and a copolymer having a high molecular weight is obtained in comparison with the comparative example.
- the catalysts WB02 and WC02 of the comparative examples produce copolymers having molecular weights of 69,000 g / mole and 67,000 g / mole, respectively, (WC03 and WC04) have a high molecular weight of 100,000 g / mole or more.
- the WC03 of the present invention exhibits excellent properties in the production of a product having a low density because of higher catalytic activity and comonomer reactivity at a high polymerization temperature of 200 DEG C .
- the WDO and WDO2 catalysts exhibiting the catalytic activities exhibit values of 2.2 and 2.3 at 200 ° C, respectively, while the WC03 of the present invention has a relatively low catalyst consumption of 1.7, indicating that the catalytic activity is excellent .
- the density of the polymer obtained at a polymerization temperature of 200 ° C using WD01 and WD02 as the precatalysts was 0.901 and 0.900 g / cm 3 , respectively, while the polymer obtained from the same polymerization conditions using WC03 of the present invention as a precursor And 0.8895 g / cm < 3 >, respectively.
- the metal-ligand complex according to an embodiment of the present invention can dramatically improve the solubility in a solvent by introducing a specific functional group having a controlled number of carbon atoms and form, thereby improving the polymerization process more efficiently.
- the metal-ligand complex according to an embodiment of the present invention has excellent activity of the catalyst due to the introduction of a specific functional group at a specific position, and is capable of polymerization even at a high polymerization temperature, and does not lower the activity of the catalyst.
- the metal-ligand complex according to an embodiment of the present invention has an advantage of being capable of easily polymerizing with high reactivity with olefins and capable of producing an ethylene polymer having a high molecular weight at a high polymerization temperature.
- the metal-ligand complex according to one embodiment of the present invention and the catalyst composition containing the metal-ligand complex can be very usefully used in the production of an ethylene polymer having excellent physical properties.
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Description
Claims (9)
- 제 1항에 있어서,R 3은 직쇄형(C8-C20)알킬인 금속-리간드 착체.
- 제 1항에 있어서,상기 M은 티타늄, 지르코늄 또는 하프늄이며;R' 및 R''는 서로 독립적으로 (C1-C5)알킬이며;R 1 및 R 2는 서로 동일하게 할로겐, (C1-C8)알킬 또는 (C1-C8)알콕시이며;m은 3의 정수인 금속-리간드 착체.
- 제 1항 내지 제 4항에서 선택되는 어느 한 항에 따른 금속-리간드 착체; 및조촉매;를 포함하는 에틸렌계 중합용 촉매 조성물.
- 제 5항에 있어서,상기 조촉매는 알루미늄화합물 조촉매, 붕소화합물 조촉매, 또는 이들의 혼합물인 촉매 조성물.
- 제 5항에 있어서,상기 조촉매는 금속-리간드 착체 1몰에 대하여 0.5 내지 10000몰로 사용되는 촉매 조성물.
- 제 5항의 에틸렌계 중합용 촉매 조성물 존재 하에 에틸렌 또는 에틸렌과 알파-올레핀을 중합시켜 에틸렌계 중합체를 제조하는 단계를 포함하는 에틸렌계 중합체의 제조방법.
- 제 8항에 있어서,상기 중합은 170 내지 250℃에서 수행되는 에틸렌계 중합체의 제조방법.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18892906.1A EP3730501B1 (en) | 2017-12-21 | 2018-06-25 | Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same |
| CA3083892A CA3083892A1 (en) | 2017-12-21 | 2018-06-25 | Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same |
| ES18892906T ES2928602T3 (es) | 2017-12-21 | 2018-06-25 | Complejo de metal-ligando, composición catalizadora que lo comprende para la polimerización a base de etileno, y método para preparar un polímero a base de etileno que los utiliza |
| RU2020123959A RU2783262C2 (ru) | 2017-12-21 | 2018-06-25 | Металлолигандный комплекс, каталитическая композиция для полимеризации на основе этилена, включающая в себя указанный комплекс, и способ получения полимера на основе этилена с использованием указанного комплекса |
| JP2020530990A JP7163389B2 (ja) | 2017-12-21 | 2018-06-25 | 金属-リガンド錯体、これを含むエチレン系重合用の触媒組成物およびこれを用いたエチレン系重合体の製造方法 |
| CN201880082390.8A CN111491942B (zh) | 2017-12-21 | 2018-06-25 | 金属-配体配合物、催化剂组合物及利用其的制造方法 |
| US16/956,513 US11505563B2 (en) | 2017-12-21 | 2018-06-25 | Metal-ligand complex, catalyst composition for ethylene-based polymerization including the same, and method for preparing ethylene-based polymer using the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20170177345 | 2017-12-21 | ||
| KR10-2017-0177345 | 2017-12-21 | ||
| KR1020180070243A KR102100142B1 (ko) | 2017-12-21 | 2018-06-19 | 금속-리간드 착체, 이를 포함하는 에틸렌계 중합용 촉매 조성물 및 이를 이용한 에틸렌계 중합체의 제조방법 |
| KR10-2018-0070243 | 2018-06-19 |
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| WO2019123028A1 true WO2019123028A1 (ko) | 2019-06-27 |
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| PCT/IB2018/054644 Ceased WO2019123028A1 (ko) | 2017-12-21 | 2018-06-25 | 금속-리간드 착체, 이를 포함하는 에틸렌계 중합용 촉매 조성물 및 이를 이용한 에틸렌계 중합체의 제조방법 |
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| WO (1) | WO2019123028A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022173905A1 (en) * | 2021-02-15 | 2022-08-18 | Dow Global Technologies Llc | Biphenylphenol polymerization catalysts |
| US20220396647A1 (en) * | 2019-11-04 | 2022-12-15 | Dow Global Technologies Llc | Titanium biphenylphenol polymerization catalysts |
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| US20220396647A1 (en) * | 2019-11-04 | 2022-12-15 | Dow Global Technologies Llc | Titanium biphenylphenol polymerization catalysts |
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