WO2004003022A1 - 触媒組成物 - Google Patents
触媒組成物 Download PDFInfo
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- WO2004003022A1 WO2004003022A1 PCT/JP2003/008185 JP0308185W WO2004003022A1 WO 2004003022 A1 WO2004003022 A1 WO 2004003022A1 JP 0308185 W JP0308185 W JP 0308185W WO 2004003022 A1 WO2004003022 A1 WO 2004003022A1
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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
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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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
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F136/06—Butadiene
Definitions
- the present invention relates to a catalyst composition for conjugated diene polymerization.
- the present invention also relates to a method for producing a conjugated diene polymer using the catalyst composition and a novel conjugated diene polymer obtained by the production method.
- One of the promising means to solve this problem is to use a catalyst that has high polymerization activity for conjugated gens and to have a high cis 1,4-structure content in the microstructure and a narrow molecular weight distribution. Attempts have been made to produce polymers having
- the present inventors have previously prepared a catalyst composition obtained by combining a rare earth metal meta-acene catalyst with an ionic compound comprising a non-coordinating anion and a cation and a cocatalyst containing Z or aluminoxane.
- an ionic compound comprising a non-coordinating anion and a cation and a cocatalyst containing Z or aluminoxane.
- the compound it is possible to efficiently polymerize the conjugated diene, and by using the above-mentioned catalyst composition for polymerization, the content of the cis-1,4-structure in the microstructure is extremely high, and the molecular weight distribution is high. It has been found that a conjugated gen polymer having a small diameter can be produced (see JP-A-2000-313710). Further, the present inventors have found a polymerization catalyst composition having particularly excellent polymerization activity among the above polymerization catalyst compositions (see Japanese Patent Application No. 2002-094681).
- the present inventors have proposed a rare earth metal meta-aqueous type polymerization catalyst, a group IA to IIIA (groups 1 to 3) element of the periodic table, and a group III to III (groups 11 to 13).
- Group) element an organometallic compound of at least one element selected from the group consisting of an aluminoxane and / or an organoaluminum compound and a reaction product of water is mixed with a polymerization catalyst to form cis 1,4- It has been found that a conjugated diene polymer having an extremely high structure content and an appropriate molecular weight that is easy to process can be produced (see Japanese Patent Application No. 2000-384771).
- An object of the present invention is to provide a catalyst for polymerizing a conjugated gen. More specifically, a catalyst composition for polymerization for producing a polymer having a high content of cis 1,4-structure in the microstructure, a moderate molecular weight, and a narrow molecular weight distribution in processing. To provide things. Another object of the present invention is to provide a polymerization catalyst composition having good polymerization efficiency for producing a polymer having the above characteristics. Still another object of the present invention is to provide a polymer having the above characteristics and a method for producing the same.
- the present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have found that rare earth metal meta-acene catalysts, as well as aluminoxanes and organometallic compounds of Group I to III elements of the Periodic Table. It is possible to efficiently polymerize conjugated diene by using a catalyst composition in combination with a catalyst containing two or more kinds of catalysts. It has been found that a conjugated gen-polymer having an extremely high content of the 1,4_ structure, an appropriate molecular weight for easy processing, and a narrow molecular weight distribution can be produced. The present invention has been completed based on these findings.
- the present invention provides a catalyst composition for the polymerization of a conjugated diene, comprising: (A) a meta-acene complex of a rare earth metal compound, (B) an aluminoxane, and (C) a periodic table. It is intended to provide a catalyst composition comprising a combination of at least two kinds of organometallic compounds of Group I to III elements.
- the catalyst composition wherein the metallocene-type complex is a salimum complex;
- the catalyst composition wherein the organometallic compound of a Group I to Group III element of the periodic table is an organic aluminum compound
- a combination of two or more organometallic compounds of Group I to III elements of the periodic table is a combination of one or more alkylmetal compounds and one or more hydrogenated alkylmetal compounds.
- the above catalyst composition wherein the combination of two or more of the organometallic compounds of the Group I to Group III elements of the periodic table is a combination of triisobutylaluminum and diisobutylalminium hydride;
- a catalyst composition comprising an ionic compound comprising a coordinating anion and a cation; and a cocatalyst for use together with a catalyst for polymerizing a conjugated gen containing a meta-acene complex of a rare earth metal compound,
- a cocatalyst comprising: an aluminoxane and a combination of two or more kinds of organometallic compounds of elements of Groups I to III of the Periodic Table.
- the present invention provides a method for producing a conjugated diene, which comprises polymerizing a conjugated diene in the presence of the above catalyst composition; and a method of polymerizing the conjugated diene in the presence of the above catalyst composition.
- a polymer that can be provided is provided.
- the content of the cis 1,4-structure in the microstructure of the polymer is 80.Omol% or more, preferably 90.Omol% or more, more preferably 95.Omol% or more, and particularly preferably.
- This polymer can be produced by polymerizing a conjugated gen in the presence of the above-mentioned catalyst composition for polymerization.
- the meta-opening sensor type complex of a rare earth metal compound for example, the general formula (I): R a MX b ⁇ L e or the general formula ( ⁇ ): R a MX b QX b
- M represents a rare earth metal
- R represents a cyclopentenyl group, a substituted cyclopentagenenyl group, an indenyl group, a substituted indenyl group, a fluorenyl group or a substituted fluorenyl group
- X represents a hydrogen atom, a halogen atom, an alkoxide group, a thiolate group, an amino group
- L represents a Lewis basic compound
- Q represents a Group III element of the periodic table
- a represents an integer of 1, 2, or 3
- b represents an integer of 0, 1, or 2
- c represents an integer of 0, 1, or 2)
- the rare earth metal represented by M an element having an atomic number of 57 to 71 in the periodic table can be used.
- the rare earth metal include, for example, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terpium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. Of these, samarium is preferred.
- the type, number, and substitution position of the substituents in the substituted cyclopentenyl, substituted indenyl, or substituted fluorenyl groups represented by R are not particularly limited, but include, for example, methyl, ethyl, n-propyl, and isopropyl. Pill group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, hexyl group, phenyl group, benzyl group, etc., as well as hydrocarbon groups containing silicon atoms such as trimethylsilyl group Can be.
- R may be mutually bonded to a part of X by a cross-linking group such as a dimethylsilyl group, a dimethylmethylene group, a methylphenylmethylene group, a diphenylmethylene group, an ethylene group, or a substituted ethylene group. They may be linked by a cross-linking group such as a dimethylsilyl group, a dimethylmethylene group, a methylphenylmethylene group, a diphenylmethylene group, an ethylene group, or a substituted ethylene group.
- a cross-linking group such as a dimethylsilyl group, a dimethylmethylene group, a methylphenylmethylene group, a diphenylmethylene group, an ethylene group, or a substituted ethylene group.
- substituted cyclopentagenenyl group examples include, for example, a methylcyclopentagenenyl group, a benzylcyclopentylphenyl group, a vinylcyclopentenyl group, a 2-methoxyhexylcyclopentenyl group, and a trimethylsilylcyclopentenyl group.
- Tert-butylcyclopentagenenyl group ethylcyclopentapentaenyl group, fuelcyclopentagenenyl group, 1,2-dimethylcyclopentenyl group, 1,3-dimethylcyclopentenyl group, 1,3-di ( tert-butyl) cyclopentenyl group, 1,2,3-trimethylcyclopentenyl group, 1,2,3,4-tetramethylcyclopentyl group
- Benzyl group pentamethylcyclopentagenenyl group, tolethyl-2,3,4,5-tetramethylcyclopentenyl group, trisopropyl-2,3,4,5-tetramethylcyclopentenyl group, 1-n-butyl-2,3,4,5-pentamethylcyclene pentagenenyl group, 1-trimethylsilyl-2,3,4,5-tetramethylcyclyl pentagenenyl group, 1-benzyl-2,3,4,5- Tetramethylcyclopentenyl group, 1-phenyl-2,3,4,5-te
- substituted indenyl group examples include, for example, 1,2,3-trimethylindenyl group, heptane methylindenyl group, 1,2,4,5,6,7-hexamethylindenyl group and the like.
- R a substituted cyclopentenyl group is preferred. Specifically, 1-ethyl-2,3,4,5-tetramethylcyclopentapentaenyl group and triisopropyl-2,3,4,5-tetraphenyl A methylcyclopentene genenyl group, a 1-normal butyl-2,3,4,5-tetramethylcyclopentenyl group and a 1_trimethylsilyl-2,3,4,5-tetramethylcyclopentenyl group Preferred are mentioned.
- Examples of the alkoxide group represented by X include a methoxy group, an ethoxy group, a propoxy group, an n-butoxy group, an isobutoxy group, a sec-butoxy group, a tert-butoxy group, and other aliphatic alkoxy groups, a phenoxy group, and 2,6.
- -Di-tert-butyl phenoxy group 2,6-diisopropylphenoxy group, 2,6-dineopentyl phenoxy group, 2-tert-butyl-6-isopropylphenoxy group, 2-tert-butyl-6-neo Any of aryloxy groups such as a pentylphenoxy group and a 2-isopropyl-6-neopentylphenoxy group may be used, but a 2,6-di-tert-butylphenoxy group is preferred.
- Examples of the thiolate group represented by X include aliphatic thiolate groups such as a thiomethoxy group, a thioethoxy group, a thiopropoxy group, a thio-n-butoxy group, a thioisobutoxy group, a thio-sec-butoxy group, and a thio-tert-butoxy group.
- the amide group represented by X includes an aliphatic amide group such as a dimethylamide group, a getylamide group, a diisopropylamide group, a phenylamide group, a 2,6-di-tert-butylphenylamide group, 2,6-diisopropylpropylphenylamide, 2,6-dyneopentylphenylamide, 2-tert-butyl-6-isopropylphenylamide, 2-tert-butyl-6-neopentylphenyl Any of the arylamide groups such as amide group, 2_isopropyl-6-neopentylphenylamide group and 2,4,6_tert-butylphenylamide group may be used, but 2,4,6-tert-butylphenyl Amide groups are preferred.
- the halogen atom represented by X may be any of a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, but is preferably a chlorine atom or an iodine atom.
- hydrocarbon group having 1 to 20 carbon atoms represented by X include, for example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert- Linear or branched aliphatic hydrocarbon groups such as butyl group, neopentyl group, hexyl group, and octyl group; aromatic hydrocarbon groups such as phenyl, tolyl, and naphthyl groups; and aralkyl groups such as benzyl group;
- a hydrocarbon group containing a silicon atom such as a trimethylsilylmethyl group and a pistrimethylsilylmethyl group
- a hydrocarbon group containing an oxygen atom such as a furyl group and a tetrahydrofuryl group may be used.
- X is preferably a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 20 carbon atoms.
- the Lewis basic compound represented by L is not particularly limited as long as it is a Lewis basic compound that can coordinate to a metal with a counter electron, and may be either an inorganic compound or an organic compound. Examples of the Lewis basic compound include, but are not limited to, ether compounds, ester compounds, ketone compounds, amine compounds, phosphine compounds, silyloxy compounds, and the like.
- Q represents an element of Group III (Group III and Group IIIB) of the periodic table, and specific examples of the element include boron, aluminum, and gallium. Aluminum is preferred.
- meta-orthocene type complex of the rare earth metal compound represented by the formula (I) include, for example, bispentamethylcyclopentene genenyl bistetrahydrofuran, fransamarium, and methylbispentamethylcyclopentene genyl tetra.
- Hydrofuransamaridum bis-bis-methyl-cyclopentadienyltetrahydrofuransamarium, cyclobis-penta-methyl-cyclopentapentaenyl tetrahydrofuransamarium, bis-tetramethylethylcyclopentene phenyl bis-tetrahydrofuransamarium Bistetramethylisopropylcyclopentagenyl tetrahydrofuran samarium, bistetramethyl normal butyl cyclopentene genyl bis (tetrahydrofuransamarium), or bistetramethyltrimethylsilylcyclopentadiene Nyltetrahydrofuransamarium and the like.
- Specific examples of the meta-acene complex of the rare earth metal compound represented by the formula (II) include, for example, dimethylaluminum (-dimethyl) bis (pentamethylcyclopentapentaenyl) samarium .
- aluminoxane used as the co-catalyst for example, an aluminoxane obtained by contacting an organic aluminum compound with a condensing agent can be used, and more specifically, an aluminoxane represented by the general formula (_AI (R ′) 0- )
- R ′ is a hydrocarbon group having 1 to 10 carbon atoms, and the hydrocarbon group may be substituted with a halogen atom and Z or an alkoxy group.
- n is polymerization It is preferably 5 or more, more preferably 10 or more.
- R ′ examples include a methyl group, an ethyl group, a propyl group, and an isobutyl group, and a methyl group is preferable.
- the organic aluminum compound used as a raw material of the aluminoxane include trialkylaluminums such as trimethylaluminum, triethylaluminum, and triisobutylaluminum, and mixtures thereof. Particularly preferred is methylaluminoxane using trimethylaluminum as a raw material. ⁇ Modified methylaluminoxane using a mixture of trimethylaluminum and triisobutylaluminum as a raw material can also be suitably used.
- aluminoxane commercially available aluminoxane may be used.
- marauder AO or the like sold by Tosoh Finechem Co., Ltd. may be used.
- One type of aluminoxane may be used, or two or more types may be used in combination.
- aluminoxane When used as a co-catalyst, aluminoxane may be used alone or in combination with an ionic compound. An ionic compound may be used together with the aluminoxane as a promoter.
- the anionic compound is not particularly limited as long as it is composed of a non-coordinating anion and a cation.
- examples include an ionic compound that can react with the rare earth metal compound to form a cationic transition metal compound. Can be done.
- Non-coordinating anions include, for example, tetra (phenyl) porate, tetrakis (monofluorophenyl) porate, tetrakis (difluorophenyl) porate, tetrakis (trifluorophenyl) porate, tetrakis (trifluorophenyl) porate, Tetrakis (tetrafluorophenyl) porate, tetrakis (tetrafluoromethylphenyl) porate, tetra (tolyl) porate, tetra (xylyl) porate, (triphenyl, pentafluorophenyl) porate, [tris (pen Fluorophenyl
- Examples of the cation include a carpone cation, an oxonium cation, an ammonium cation, a phosphonium cation, and a cycloheptatriene. And cation cations having a transition metal.
- Specific examples of the carbonyl cation include trisubstituted cation cations such as a triphenyl cation cation and a tri-substituted phenyl cation cation.
- Specific examples of the tri-substituted phenolic cation include tri (methylphenyl) capillon cation and tri (dimethylphenyl) cation cation.
- ammonium cation examples include trimethylammonium cation, triethylammonium cation, propylammonium cation, triptylammonium cation, and tri (n-butyl) ammonium cation.
- ⁇ , ⁇ -dialkylanilinium cations such as alkylammonium cations, ⁇ , ⁇ -ethylenilani cation, ⁇ , ⁇ -2,4,6-pentamethylaniline cation
- dialkylammonium cations such as diisopropylammonium cation and dicyclohexylammonium cation.
- phosphonium cation examples include triarylphosphonium cations such as triphenylphosphonium cation, tri (methylphenyl) phosphonium cation, and tri (dimethylphenyl) phosphonium cation. it can.
- ionic compound a combination of arbitrarily selected non-coordinating anions and cations can be preferably used.
- ionic compounds include triphenylcarboditetramethyl (pentafluorophenyl) porate, triphenylcarbodidimethyl tetrakis (tetrafluorophenyl) porate, ⁇ , ⁇ -dimethylanilinium dimethyltetrakis (pentafluorophenyl) porate, ⁇ , -Dimethyl ferrocene tetrakis (pentafluorophenyl) porate is preferred.
- the ionic compounds may be used alone or in combination of two or more.
- the catalyst composition of the present invention contains, as a cocatalyst, a combination of two or more organometallic compounds of Group I to Group III (Groups IA to IIIA and Groups IB to IIIB) of the Periodic Table.
- Organometallic compounds of Group I to III elements of the periodic table include organoaluminum compounds, organolithium compounds, organomagnesium compounds, organozinc compounds, organoboron compounds and the like.
- an alkyl metal compound can be preferably used.
- the co-catalyst of the present invention is preferably an aluminum compound.
- two or more of these organometallic compounds are used in combination.
- a combination of one or more alkyl metal compounds and one or more hydrogenated alkyl metal compounds is preferable, and specifically, triisobutylaluminum and Combinations such as disobutyl aluminum hydride are preferred.
- triisobutylaluminum and Combinations such as disobutyl aluminum hydride are preferred.
- component (A) a rare earth metal compound, a meta-acene complex of the rare earth metal compound, (B) an aluminoxane, and (C) an organic metal compound of an element in Groups I to III of the periodic table in the catalyst composition of the present invention.
- component (A): component (B) molar ratio; molar amount of rare earth metal contained in meta-acene complex: amount of aluminum metal contained in aluminoxane
- the ratio can be set to about 1:10 to 1: 1000, and more preferably about 1:50 to 1: 500.
- the mixing ratio (molar ratio) of the component (A) and the component (C) is, for example, 1: 1 to 1: 10000, preferably 1:10 to 1: 1000, and more preferably 1:50 to 1: It is about 500.
- the organometallic compound of the component (C) is used in combination of two or more.
- one or more alkyl metal compounds are used as the first component, and as other components, one or more hydrogenated alkyl metal compounds, alkyl metal octogen compounds, etc.
- one or more alkyl metal compounds are used as the first component, and one or more hydrogenated alkyl metal compounds are further combined as the other components.
- the mixing ratio (molar ratio) of the first component and the other components is, for example, 1: 0.001 to 1: 1,000, preferably 1: 0.02 to 1: 500, and more preferably 1: 0.05. ⁇ 1: About 200.
- the type of the conjugated diene compound monomer that can be polymerized by the polymerization method of the present invention is not particularly limited.
- 1,3-butadiene, isoprene, 1,3-pentenegen, 2-ethyl-1,3-butadiene examples thereof include 2,3-dimethylbutadiene, 2-methylpentene, 4-methylpentene, and 2,4-hexadiene, and among them, 1,3-butadiene is preferable.
- These monomer components may be used alone or in combination of two or more.
- the mixing ratio of the polymerization catalyst and the monomer of the present invention is, for example, that the monomer weight (g) and the Z polymerization catalyst molar amount (Mi ol) are 100 or more, preferably 3000 or more, and more preferably Or more than 5,000.
- the polymerization method of the present invention may be performed in the presence or absence of a solvent.
- a solvent is used, the type of the solvent is not particularly limited as long as the solvent is substantially inactive in the polymerization reaction and has sufficient solubility in the monomer and the catalyst composition.
- saturated aliphatic hydrocarbons such as butane, pentane, hexane and heptane
- saturated alicyclic hydrocarbons such as cyclopentane and cyclohexane
- monoolefins such as tobutene and 2-butene
- aromatic hydrocarbons such as methylene chloride, chloroform, carbon tetrachloride, trichloroethylene, perchlorethylene, 1,2-dichloroethane, chlorobenzene, bromobenzene, and chlorotoluene.
- toluene is preferred as the solvent used in the present invention.
- Cyclohexane is also preferred as having no toxicity to living organisms.
- the solvent may be used alone or in combination of two or more.
- the polymerization temperature in the polymerization method of the present invention is, for example, in the range of ⁇ 100 to 100 ° C., and preferably in the range of ⁇ 50 to 80 ° C.
- the polymerization time is, for example, about 1 minute to 12 hours, preferably about 5 minutes to 5 hours.
- these reaction conditions can be appropriately selected according to the type of the monomer and the type of the catalyst composition, and are not limited to the ranges exemplified above.
- a known polymerization terminator is added to the polymerization system to stop the polymerization, and then the produced polymer can be separated from the reaction system according to a usual method.
- the content of the cis structure in the microstructure of the polymer of the present invention is usually 80.Omol% or more, preferably 90.Omol% or more, more preferably 95.Omol% or more, and particularly preferably. Is 98.5 mol% or more.
- the number average molecular weight is from 100,000 to 500,000, preferably from 150,000 to 450,000, more preferably from 200,000 to 400,000, particularly preferably from 250,000 to 350,000.
- Mw / Mn is 2.50 or less, more preferably 2.20 or less, and further preferably 2.00 or less.
- the polymer of the present invention is expected to have high thermal properties (such as thermal stability) and mechanical properties (such as tensile modulus and flexural modulus). Therefore, it can be used for various purposes as a polymer material.
- the polymer of the present invention has a high content of a cis structure in a micro structure, and has high performance in thermal and mechanical properties. Improving the content of the cis structure by a few percent is very significant in the case of industrially producing polymers.
- the content of the cis structure in the microstructure of the polymer of the present invention can be calculated from the integral ratio of the obtained peaks by analyzing the polymer by ⁇ NMR and 13 C R.
- the weight average molecular weight (Mw;), number average molecular weight (Mn), and molecular weight distribution (Mw / Mn) were determined by GPC using polystyrene as a standard substance.
- a dried and degassed glass ampoule is charged with bistetramethylisopropylcyclopentapentaenyltetrahydrofuran summary [[C 5 Me 4 iPr) 2 Sm (THF)] (iPr: isopropyl group; THF: tetrahydrofuran ligand ) was dissolved in 5 ml of toluene charged with O.OImmol.
- Polymerization was carried out in the same manner as in Example 1, except that the composition of the catalyst composition was changed to the molar ratio shown in Table 1, and 200 g of cyclohexane and 50 g of 1,3-butadiene were used. Table 1 shows the results.
- Polymerization was carried out in the same manner as in Example 1 except that the composition of the catalyst composition was changed to the molar ratio shown in Table 1, and 320 g of cyclohexane and 80 g of 1,3-butadiene were used. Table 1 shows the results.
- Table 1 shows the composition of the catalyst composition, using bistetramethyltrimethylsilylcyclopentadenyltetrahydrofuransamarium [(C 5 Me 4 TMS) 2 Sm (THF)] (TMS: trimethylsilyl group) as the catalyst.
- TMS bistetramethyltrimethylsilylcyclopentadenyltetrahydrofuransamarium [(C 5 Me 4 TMS) 2 Sm (THF)]
- TMS trimethylsilyl group
- Example 2 The polymerization was carried out in the same manner as in Example 1 except that the composition of the catalyst composition was changed to the molar ratio shown in Table 1 and 4 g of cyclohexane and lg of 1,3-butadiene were used. Table 1 shows the results. ⁇ Comparative Example 2>
- Polymerization was carried out in the same manner as in Example 1 except that the composition of the catalyst composition was changed to the molar ratio shown in Table 1, and 40 g of cyclohexane and 10 g of 1,3-butadiene were used. Table 1 shows the results.
- a polymer having an extremely high cis-1,4-structure content in a microstructure, having a moderate molecular weight that is easy to process, and having a narrow molecular weight distribution can be efficiently produced with a small amount of catalyst. Can be manufactured.
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EP03738548A EP1541593A4 (en) | 2002-06-27 | 2003-06-27 | CATALYST COMPOSITION |
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CN102549023B (zh) * | 2009-10-14 | 2014-02-19 | 日本曹达株式会社 | 聚丁二烯的制造方法 |
WO2012153786A1 (ja) | 2011-05-09 | 2012-11-15 | 独立行政法人理化学研究所 | 多元重合体の製造方法、および多元重合体 |
SG11201404288QA (en) | 2012-01-31 | 2014-09-26 | Asahi Kasei Chemicals Corp | Catalyst composition for polymerizing conjugated diene monomer |
JP2017082138A (ja) * | 2015-10-29 | 2017-05-18 | 株式会社ブリヂストン | 触媒調製方法、触媒及び(変性)共役ジエン系重合体の製造方法 |
CN109153737A (zh) * | 2016-05-24 | 2019-01-04 | 株式会社普利司通 | 末端改性的共轭二烯聚合物、橡胶组合物、橡胶产品和末端改性的共轭二烯聚合物的制造方法 |
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US5744415A (en) * | 1995-12-28 | 1998-04-28 | Union Carbide Chemicals & Plastics Technology Corporation | Rare earth metal catalyst for olefin polymerization |
US6441107B1 (en) * | 1998-12-18 | 2002-08-27 | Union Carbide Chemicals & Plastics Technology Corporation | Molecular weight control of gas phase polymerized polybutadiene when using a rare earth catalyst |
US6960631B2 (en) * | 2000-04-07 | 2005-11-01 | Riken | Catalyst composition and process for producing copolymer |
JP2003292513A (ja) * | 2002-03-29 | 2003-10-15 | Inst Of Physical & Chemical Res | 触媒組成物 |
-
2002
- 2002-06-27 JP JP2002187957A patent/JP2004027103A/ja active Pending
-
2003
- 2003-06-27 WO PCT/JP2003/008185 patent/WO2004003022A1/ja active Application Filing
- 2003-06-27 US US10/518,928 patent/US20060058179A1/en not_active Abandoned
- 2003-06-27 EP EP03738548A patent/EP1541593A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10251319A (ja) * | 1997-03-10 | 1998-09-22 | Rikagaku Kenkyusho | 重合方法 |
JPH10259206A (ja) * | 1997-03-21 | 1998-09-29 | Rikagaku Kenkyusho | サマリウム錯体 |
EP1086957A1 (en) * | 1999-03-04 | 2001-03-28 | Riken | Catalyst composition |
JP2002187908A (ja) * | 2000-12-19 | 2002-07-05 | Nippon Zeon Co Ltd | 共役ジエン重合触媒及び共役ジエン系重合体の製造方法 |
Non-Patent Citations (1)
Title |
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See also references of EP1541593A4 * |
Also Published As
Publication number | Publication date |
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JP2004027103A (ja) | 2004-01-29 |
US20060058179A1 (en) | 2006-03-16 |
EP1541593A1 (en) | 2005-06-15 |
EP1541593A4 (en) | 2006-06-28 |
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