JP2000313724A - Copolymer, its production and product molded therefrom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a copolymer excellent in elastic recovery and transparency, and useful for a stretch film, a shrink film or the like by regulating the molecular weight distribution of a copolymer of an olefin, an alkenyl aromatic hydrocarbon and a diene within a specified range. SOLUTION: This copolymer is the one of (A) an olefin [e.g. ethylene and an α-olefin (e.g. propylene)], (B) an alkenyl aromatic hydrocarbon (e.g. styrene) and (C) a diene (e.g. divinylbenzene), having 1.5-12.0 ratio of the weight average molecular weight to the number average molecular weight. The copolymerizing composition is preferably 1-99 mol%; component B and 0.00001-9 mol% component C. The copolymer is obtained, for example, by carrying out the copolymerization in the presence of an addition polymerization catalyst obtained by contacting a transition metal complex with an aluminum compound and a boron compound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copolymer suitable for a stretch film, a shrink film, and a wrap film, a method for producing the same, and a molded article formed therefrom.

[0002]

2. Description of the Related Art Copolymers generally used as stretch films, shrink films, and wrap films are required to have elastic recovery, transparency, and mechanical strength as found in polyvinyl chloride. However, polyvinyl chloride has been viewed as a problem with respect to environmental pollution, for example, harmful substances may be generated during combustion. At present, substitution of polyvinyl chloride by various polymers is being studied, but in reality, satisfactory properties in terms of viscoelasticity and transparency have not been obtained.

In recent years, in the field of polymerization of olefins such as ethylene and propylene, with the advent of single-site catalysts using transition metal compounds such as so-called metallocenes and non-metallocenes, it has become possible to produce polymers having properties different from conventional ones. Advances are being made that allow for the production of large quantities of polymers with very small amounts of catalyst.

The application of such a catalyst has also been proposed for the copolymerization of alkenyl aromatic hydrocarbons represented by styrene with ethylene, and for example, Japanese Patent No. 262070 discloses a specific transition metal compound and an organoaluminum compound. A pseudo-random copolymer of ethylene and styrene obtained by using a catalyst comprising: (a) methine carbon atoms having a phenyl group bonded thereto are always separated by at least two methylene groups. Japanese Patent Application Laid-Open No. 9-309925 discloses a copolymer of ethylene and styrene in which the arrangement of phenyl groups is sterically regulated and obtained by using a similar catalyst. All of these polymers are excellent in viscoelasticity and transparency and are expected to be a substitute for polyvinyl chloride. For this reason, a copolymer having a high styrene composition has a problem in that the mechanical strength is not sufficient. On the other hand, J. Polym. Sci., Part A: Pol
ym. Chem., 35, 2549 (1997). describes a method for copolymerizing ethylene, styrene and 1,5-hexadiene. However, the copolymer obtained by this method is
Since the molecular weight distribution (Mw / Mn) represented by the ratio between the weight average molecular weight (Mw) and the number average molecular weight (Mn) is very wide at 14.5, transparency and mechanical strength are not sufficient. was there.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. That is, an object of the present invention is to provide a copolymer having a high molecular weight and a narrow molecular weight distribution, an elastic recovery property, and excellent transparency, which can have a configuration containing no halogen which is regarded as a problem from the viewpoint of environmental pollution. To provide a method for producing the copolymer with extremely high polymerization activity; and to provide a transparent molded article of the copolymer having excellent mechanical strength, flexibility and elastic recovery. It is in.

[0006]

Means for Solving the Problems In order to achieve the above objects, the present inventors have earnestly focused on the production of a copolymer based on a production method using a transition metal compound represented by a metallocene as a catalyst component. We continued our research and completed the present invention.

That is, the present invention relates to ethylene and α-olefin.
An olefin selected from the group consisting of
Copolymer obtained by copolymerizing aromatic hydrocarbon and diene
Where weight average molecular weight (Mw) and number average molecular weight (M
n) and the molecular weight distribution (Mw / Mn) represented by the ratio to 1.
5 to 12.0, a method for producing the copolymer,
And the following (A), (B) and / or (C)
In the presence of a catalyst for addition polymerization obtained by contacting
Selected from the group consisting of olefins and α-olefins
And alkenyl aromatic hydrocarbons and dienes
A method for producing a copolymer to be combined,
It depends on the molded article. (A): represented by the following general formula [I], [II] or [III]
Transition metal complexes(In the above general formulas [I] to [III], M¹Is
Represents a transition metal atom of Group 4 of the Periodic Table of the Elements, where A is an element
Indicates an atom belonging to Group 16 of the Periodic Table of the Elements, and J is the period of the element
Shows the atoms of Group 14 of the Rule. Cp¹Is cyclopentadi
A group having an ene-type anion skeleton is shown. X¹, X^Two,
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Are independent of each other,
Hydrogen atom, halogen atom, alkyl group, aralkyl group,
Aryl group, substituted silyl group, alkoxy group, aralkyl
Represents an oxy group, an aryloxy group or a disubstituted amino group
You. X^ThreeRepresents an atom belonging to Group 16 of the periodic table of the elements.
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Is optionally bonded to a ring
May be formed. In general formula [II] or [III]
Two M¹, A, J, Cp¹, X¹, X^Two, X^Three, R¹, R
^Two, R ^Three, R^Four, R^FiveAnd R⁶Are the same even if
It may be different. (B): at least one selected from the following (B1) to (B3)
(B1) General formula E¹ _aAlZ_3-aOrganic aluminum indicated by
Compound (B2) General formula ｛-Al (E^Two) -O-｝_bIndicated by
Cyclic aluminoxane having a structure (B3) General formula E^Three｛-Al (E^Three) -O-｝_cAlE^Three
_TwoLinear aluminoxane having a structure represented by the following formula (provided that E¹, E^TwoAnd E^ThreeIs a hydrocarbon group
Yes, all E¹, All E^TwoAnd all E^ThreeIs the same
May be different. Z is a hydrogen atom or halo
Gen atom, all Z are the same or different
May be. a is a number satisfying 0 <a ≦ 3, b is 2 or more
And c represents an integer of 1 or more. (C): Boration of any of the following (C1) to (C3)
Compound (C1) General formula BQ¹Q^TwoQ^ThreeBoron compound represented by
Object, (C2) general formula G⁺(BQ¹Q^TwoQ^ThreeQ^Four)^-Represented by
Boron compound, (C3) general formula (LH)⁺(BQ¹
Q^TwoQ^ThreeQ^Four)^-(Where B is a boron atom in a trivalent valence state, and Q
¹~ Q^FourIs a halogen atom, hydrocarbon group, halogenated hydrocarbon
Group, substituted silyl group, alkoxy group or disubstituted amino
Groups, which may be the same or different
No. G⁺Is an inorganic or organic cation, and L is neutral
A Lewis base, (LH)⁺Is Bronsted acid
is there. )

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in more detail. The copolymer of the present invention contains ethylene and α-
A copolymer obtained by copolymerizing an olefin selected from the group consisting of olefins, an alkenyl aromatic hydrocarbon, and a diene, represented by a ratio between a weight average molecular weight (Mw) and a number average molecular weight (Mn). Molecular weight distribution (Mw / Mn)
Is 1.5 to 12.0.

The α-olefin referred to herein is preferably an α-olefin having 3 to 20 carbon atoms,
Specific examples of such α-olefins include propylene,
Butene-1, pentene-1, hexene-1, heptene-
Linear olefins such as 1, octene-1, nonene-1, decene-1, dodecene-1, tetradecene-1, hexadecene-1, eicosene-1, 3-methylbutene-
1,3-methylpentene-1,4-methylpentene-
Examples thereof include branched olefins such as 1,4-methyl-hexene-1, 5-methyl-hexene-1, and vinylcyclohexane. More preferred α-olefins are propylene, butene-1, pentene-1, hexene-1, heptene-1, octene-1, 4-methylpentene-1 or vinylcyclohexane, particularly preferably propylene.

The olefin in the present invention is an olefin selected from the group consisting of ethylene and such α-olefin, and may be used alone or in combination. Particularly preferred as the olefin of the present invention is ethylene or propylene.

The alkenyl aromatic hydrocarbon in the present invention is preferably an alkenyl compound having an aromatic hydrocarbon group having 6 to 25 carbon atoms. 6 to 25 carbon atoms
Specific examples of the aromatic hydrocarbon group include phenyl group, tolyl group, xylyl group, tertiary butylphenyl group, vinylphenyl group, naphthyl group, phenanthryl group, anthracenyl group, benzyl group and the like. Preferably, it is a phenyl group, a tolyl group, a xylyl group, a tertiary butylphenyl group, a vinylphenyl group or a naphthyl group.

Specific examples of such alkenyl aromatic hydrocarbons include p-methylstyrene, m-methylstyrene,
o-methylstyrene, p-ethylstyrene, m-ethylstyrene, o-ethylstyrene, 2,4-dimethylstyrene, 2,5-dimethylstyrene, 3,4-dimethylstyrene, 3,5-dimethylstyrene, 3- Methyl-5-
Ethyl styrene, p-tertiary butyl styrene, p-second
Alkyl styrene such as butyl styrene; styrene;
Alkenylbenzenes such as 2-phenylpropylene, 2-phenylbutene and 3-phenylpropylene; vinylnaphthalenes such as 1-vinylnaphthalene and the like can be mentioned. The alkenyl aromatic hydrocarbon used in the present invention is preferably styrene, p-methylstyrene, m-methylstyrene, o-methylstyrene, p-tertiary butylstyrene, 2-phenylpropylene or 1-vinylnaphthalene. And particularly preferably styrene.

The diene in the present invention is not particularly limited as long as it has two carbon-carbon double bonds, and examples thereof include divinylbenzene, divinylnaphthalene,
Bisalkenyl aromatic hydrocarbons such as divinylbiphenyl and diallylbenzene; cyclic dienes such as norbornadiene, dicyclopentadiene, vinylnorbornene and vinylcyclohexene; linear dienes such as 1,5-hexadiene and 1,7-octadiene; isoprene and the like Can be listed.

The copolymer of the present invention has no diene-derived vinyl group in the molecular chain. Unreacted vinyl groups of the diene incorporated into the polymer molecular chain polymerize with further monomers, resulting in a polymer having a branched polymer chain structure. A polymer having such a structure is excellent in processability.

The diene is preferably a bisalkenyl aromatic hydrocarbon, a cyclic diene or a branched diene,
More preferred are bisalkenyl aromatic hydrocarbons and cyclic dienes, and particularly preferred are bisalkenyl aromatic hydrocarbons. When a diene is copolymerized, the molecular weight distribution tends to widen with the improvement of the molecular weight by crosslinking. In such a case, the effect of improving the mechanical strength is low, and the transparency is reduced. However, when a bisalkenyl aromatic hydrocarbon is used as the diene, the molecular weight can be improved without widening the molecular weight distribution of the copolymer.

The bisalkenyl aromatic hydrocarbon is preferably divinylbenzene or divinylbiphenyl, particularly preferably divinylbenzene.

The copolymer of the present invention is a copolymer obtained by copolymerizing such an olefin, an alkenyl aromatic hydrocarbon and a diene. The copolymer composition of the alkenyl aromatic hydrocarbon in the copolymer of the present invention is preferably from 1 to 99.
mol%. When the copolymerization composition of the alkenyl aromatic hydrocarbon is in this range, it is particularly excellent in flexibility and is preferable.
A more preferred alkenyl aromatic hydrocarbon copolymer composition is 10 to 60 mol%, and a still more preferred alkenyl aromatic hydrocarbon copolymer composition is 20 to 60 mol%. In the copolymer of the present invention, a preferable diene copolymer composition is 0.00001 to 9 mol%. When the copolymer composition of the diene is within this range, the mechanical strength is particularly excellent. More preferred diene copolymer composition is 0.0001 to
1 mol%, and a more preferred diene copolymer composition is 0.0003 to 0.1 mol%.

In the copolymer of the present invention, another monomer can be further copolymerized. Examples of the other monomer include a cyclic olefin and the like. Specific examples of the cyclic olefin include cyclopentene, norbornene, 5-
Methyl norbornene, 5-ethyl norbornene, 5-butyl norbornene, 5-phenyl norbornene, 5-benzyl norbornene, tetracyclododecene, tricyclodecene, tricycloundecene, pentacyclopentadecene, pentacyclohexadecene, 8-methyltetra Cyclododecene, 8-ethyltetracyclododecene and the like can be mentioned.

The copolymer of the present invention has a molecular weight distribution (Mw / Mn) represented by a ratio of a weight average molecular weight (Mw) to a number average molecular weight (Mn) from the viewpoint of mechanical strength and transparency.
Is 1.5 to 12.0, preferably 1.5 to 6.0.
It is. It is more preferably from 1.5 to 4.0, particularly preferably from 1.7 to 2.4.

The number average molecular weight (Mn) of the copolymer of the present invention is preferably 50,000 from the viewpoint of mechanical strength.
~ 1,000,000, more preferably 50,
000 to 500,000, particularly preferably 80,
000 to 400,000.

In the copolymer of the present invention, the sequence of olefin, alkenyl aromatic hydrocarbon and diene in the polymer skeleton can be determined by ¹³ C-NMR spectrum.

[0022] When the olefin among the copolymer of the present invention is ethylene, 3 in ¹³ C-NMR spectrum
A copolymer in which the ratio (/) of the peak area appearing at 34.0 to 36.0 ppm to the peak area appearing at 6.0 to 38.0 ppm is preferably 0.01 to 0.25, more preferably 0. 0.01 to 0.20.

In the ¹³ C-NMR spectrum, peaks based on methylene groups _represented by S _αγ and S _αδ in the following general formula (1) usually appear at 36.0 to 38.0 ppm (). The presence of the methylene group indicates that an alkenyl aromatic hydrocarbon compound unit is sandwiched between ethylene units or diene units in the polymer skeleton, and that a structure that is not a chain of the alkenyl aromatic hydrocarbon compound exists. When such a bond occurs, the carbon atoms substituted with the aromatic hydrocarbon groups are separated from each other by three or more methylene groups.

Further, a peak based on a methylene group indicated by S _.alpha..beta general formula (2) is usually from 34.0 to 3
Appears at 6.0 ppm (). Such a methylene group is present when alkenyl aromatic hydrocarbon compound units are bonded in opposite directions in the molecular chain of the copolymer. That is, the insertion mode of the alkenyl aromatic hydrocarbon compound is 2,
The methylene group is present when one or two insertions follow one insertion or two or one insertions followed by the insertion of ethylene or diene after the insertion of one or two insertions. When such a bond occurs, the carbon atoms substituted with the aromatic hydrocarbon groups are separated from each other by two methylene groups.

[0025] In addition, in the general formulas (1) and (2), the case where styrene is used as the alkenyl aromatic hydrocarbon is illustrated, and the position of the diene in the polymer skeleton is also the same as that of styrene.

36.0 in the ¹³ C-NMR spectrum
3 for the area of the peak appearing at ~ 38.0 ppm
The copolymer having a peak area ratio (/) of 4.0 to 36.0 ppm of 0.01 to 0.25 has few ethylene chains or alkenyl aromatic hydrocarbon chains, The insertion of group hydrocarbons is highly alternating. And such a copolymer has a good balance of viscoelasticity. The balance of viscoelasticity here is
It is the balance between the storage elastic modulus (E ') and the loss elastic modulus (E'') that can be obtained by a dynamic viscoelasticity test of a solid. Generally, when the storage elastic modulus decreases, the loss elastic modulus tends to decrease. is there. In contrast, a copolymer having a high degree of alternating ethylene and alkenyl aromatic hydrocarbon insertion has a high loss modulus (ie, rebound) despite having a low storage modulus (ie, having flexibility). Low recovery and excellent delay recovery and vibration damping performance).

From the viewpoint of transparency, the copolymer of the present invention is
It is preferably an amorphous copolymer having no crystallinity. Lack of crystallinity is due to differential scanning calorimetry (DS
This can be confirmed by the fact that the melting point measured in C) does not substantially show the melting point.

The copolymer of the present invention is, for example,
(A) is brought into contact with (B) and / or (C)
In the presence of the resulting addition polymerization catalyst, ethylene and α-
An olefin selected from the group consisting of
To copolymerize kenyl aromatic hydrocarbon and diene
Can be produced with higher polymerization activity. Such catalysts are copolymerizable
The polymer derived from diene in the polymer molecular chain.
Nyl groups polymerize again with another olefin, resulting in polymer
-A polymer having a branched structure is formed. (A): represented by the following general formula [I], [II] or [III]
Transition metal complexes(In the above general formulas [I] to [III], M¹Is
Represents a transition metal atom of Group 4 of the Periodic Table of the Elements, where A is an element
Indicates an atom belonging to Group 16 of the Periodic Table of the Elements, and J is the period of the element
Shows the atoms of Group 14 of the Rule. Cp¹Is cyclopentadi
A group having an ene-type anion skeleton is shown. X¹, X^Two,
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Are independent of each other,
Hydrogen atom, halogen atom, alkyl group, aralkyl group,
Aryl group, substituted silyl group, alkoxy group, aralkyl
Represents an oxy group, an aryloxy group or a disubstituted amino group
You. X^ThreeRepresents an atom belonging to Group 16 of the periodic table of the elements.
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Is optionally bonded to a ring
May be formed. In general formula [II] or [III]
Two M¹, A, J, Cp¹, X¹, X^Two, X^Three, R¹, R
^Two, R ^Three, R^Four, R^FiveAnd R⁶Are the same even if
It may be different. (B): at least one selected from the following (B1) to (B3)
(B1) General formula E¹ _aAlZ_3-aOrganic aluminum indicated by
Compound (B2) General formula ｛-Al (E^Two) -O-｝_bIndicated by
Cyclic aluminoxane having a structure (B3) General formula E^Three｛-Al (E^Three) -O-｝_cAlE^Three
_TwoLinear aluminoxane having a structure represented by the following formula (provided that E¹, E^TwoAnd E^ThreeIs a hydrocarbon group
Yes, all E¹, All E^TwoAnd all E^ThreeIs the same
May be different. Z is a hydrogen atom or halo
Gen atom, all Z are the same or different
May be. a is a number satisfying 0 <a ≦ 3, b is 2 or more
And c represents an integer of 1 or more. (C): Boration of any of the following (C1) to (C3)
Compound (C1) General formula BQ¹Q^TwoQ^ThreeBoron compound represented by
Object, (C2) general formula G⁺(BQ¹Q^TwoQ^ThreeQ^Four)^-Represented by
Boron compound, (C3) general formula (LH)⁺(BQ¹
Q^TwoQ^ThreeQ^Four)^-(Where B is a boron atom in a trivalent valence state, and Q
¹~ Q^FourIs a halogen atom, hydrocarbon group, halogenated hydrocarbon
Group, substituted silyl group, alkoxy group or disubstituted amino
Groups, which may be the same or different
No. G⁺Is an inorganic or organic cation, and L is neutral
A Lewis base, (LH)⁺Is Bronsted acid
is there. Hereinafter, the production method will be described in more detail.

(A) Transition metal complex In the general formula [I], [II] or [III], the transition metal atom represented by M ¹ is a periodic table of elements (IUPAC).
Inorganic chemical nomenclature, revised edition 1989), it indicates a transition metal element of Group 4 and includes, for example, a titanium atom, a zirconium atom, and a hafnium atom. Preferably it is a titanium atom or a zirconium atom.

The atom of Group 16 of the periodic table of the element represented by A in the general formulas [I], [II] or [III] includes, for example, an oxygen atom, a sulfur atom, a selenium atom and the like. Is an oxygen atom.

In the general formulas [I], [II] and [III], examples of atoms belonging to Group 14 of the periodic table of the element represented by J include a carbon atom, a silicon atom, and a germanium atom. Is a carbon atom or a silicon atom.

Examples of the group having a cyclopentadiene-type anion skeleton represented by the substituent Cp ¹ include, for example, η
⁵ - (substituted) cyclopentadienyl group, eta ⁵ - (substituted) indenyl group, eta ⁵ - and the like (substituted) fluorenyl group. Specific examples include, for example, η ⁵ -cyclopentadienyl group, η ⁵ -methylcyclopentadienyl group, η ⁵
- dimethyl cyclopentadienyl group, eta ⁵ - trimethyl cyclopentadienyl group, eta ⁵ - tetramethylcyclopentadienyl group, eta ⁵ - Echirushikuro Bae Ntajieniru group, eta ^5-n-propyl cyclopentadienyl group, eta ⁵ −
Isopropyl cyclopentadienyl group, eta ^{5-n-butylcyclopentadienyl} group, eta ^{5-sec-butylcyclopentadienyl} group, eta ^{5-tert-Buchirushikuro} Bae Ntajieniru group, eta ^{5-n-Penchirushikuro} Bae Ntajieniru Group, η ⁵ -neopentylcyclopentadienyl group,
η ⁵ -n-hexylcyclopentadienyl group, η ⁵ -n-
Octylcyclopropane Bae Ntajieniru group, eta ⁵ - phenyl cycloalkyl Bae Ntajieniru group, eta ⁵ - Nafuchirushikuro Bae Ntajieniru group, eta ⁵ - trimethylsilylcyclopentadienyl Bae Ntajieniru group, eta ⁵ - triethylsilyl cycloalkyl Bae Ntajieniru group,
eta ^{5-tert-butyldimethylsilyl} cycloalkyl Bae Ntajieniru group, eta ⁵ - indenyl group, eta ⁵ - methylindenyl group, eta ⁵ - dimethyl indenyl group, eta ⁵ - ethyl indenyl group, eta ^5-n-propyl indenyl Nyl group, η ⁵ -isopropylindenyl group, η ⁵ -n-butylindenyl group, η ⁵
-Sec-butylindenyl group,? ⁵ -tert-butylindenyl group,? ^5- n-pentylindenyl group,? ⁵
-Neopentylindenyl group,? ^5- n-hexylindenyl group,? ^5- n-octylindenyl group,? ^5- n-
Decylindenyl group, η ⁵ -phenylindenyl group, η ⁵
-Methylphenylindenyl group,? ⁵ -naphthylindenyl group,? ⁵ -trimethylsilylindenyl group,? ⁵ -triethylsilylindenyl group,? ⁵ -tert-butyldimethylsilylindenyl group,? ⁵ -tetrahydroindenyl group, eta ⁵ - fluorenyl group, eta ⁵ - methyl fluorenyl group, eta ⁵ - dimethyl fluorenyl group, eta ⁵ - ethyl fluorenyl group, eta ⁵ - diethyl fluorenyl group, eta ⁵ -n
-Propylfluorenyl group,? ⁵ -di-n-propylfluorenyl group,? ⁵ -isopropylfluorenyl group,? ⁵
- diisopropyl fluorenyl group, eta ^{5-n-butyl-fluorenyl} group, eta ^{5-sec-butylfluorenyl} group,
η ⁵ -tert-butylfluorenyl group, η ⁵ -di-n-
Butylfluorenyl group, eta ⁵ - di -sec- butyl-fluorenyl group, eta ⁵ - di -tert- butyl-fluorenyl group, eta ^{5-n-pentyl-fluorenyl} group, eta ⁵ - Neopentyl fluorescens alkenyl group, eta ^{5-n-hexyl-fluorenyl} group, eta ^{5-n-octyl-fluorenyl} group, eta ^{5-n-decyl-fluorenyl} group, eta ^{5-n-dodecyl-fluorenyl} group, eta ⁵ - phenyl fluorenyl group, eta ⁵ - di - phenyl fluorenyl group, eta ⁵ - methylphenyl fluorenyl group, eta ⁵ - naphthyl fluorenyl group, eta ⁵ - trimethylsilyl fluorenyl group, eta ⁵ - bis - trimethylsilyl fluorenyl group, eta ⁵ - triethylsilyl fluorenyl group, such as eta ^{5-tert-butyldimethylsilyl-fluorenyl} group and the like, preferably eta ⁵ - cyclopentadienyl group, eta ⁵ - Mechirushiku Pentadienyl, η ⁵ -
tert- butyl cyclopentadienyl group, eta ⁵ - tetramethylcyclopentadienyl group, eta ⁵ - fluorenyl group - indenyl group or eta ^5,.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
Examples of the halogen atom for ⁵ or R ⁶ include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
Preferably it is a chlorine atom or a bromine atom, more preferably a chlorine atom.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
The alkyl group for ⁵ or R ⁶ has 1 carbon atom.
To 20 alkyl groups, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, n-pentyl, neopentyl, amyl, n -Hexyl group,
n-octyl group, n-decyl group, n-dodecyl group, n-
Examples thereof include a pentadecyl group and an n-eicosyl group, and more preferably a methyl group, an ethyl group, an isopropyl group, and a t-group.
tert-butyl or amyl.

Any of these alkyl groups may be substituted with a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. Examples of the alkyl group having 1 to 20 carbon atoms substituted with a halogen atom include a fluoromethyl group, a difluoromethyl group, a trifluoromethyl group, a chloromethyl group, a dichloromethyl group, a trichloromethyl group, a bromomethyl group, and a dibromomethyl group. , Tribromomethyl group, iodomethyl group, diiodomethyl group,
Triiodomethyl, fluoroethyl, difluoroethyl, trifluoroethyl, tetrafluoroethyl, pentafluoroethyl, chloroethyl, dichloroethyl, trichloroethyl, tetrachloroethyl, pentachloroethyl, bromoethyl , Dibromoethyl group, tribromoethyl group, tetrabromoethyl group, pentabromoethyl group, perfluoropropyl group,
Perfluorobutyl, perfluoropentyl, perfluorohexyl, perfluorooctyl, perfluorododecyl, perfluoropentadecyl, perfluoroeicosyl, perchloropropyl, perchlorobutyl, perchloropentyl Group, perchlorohexyl group, perchlorooctyl group, perchlorododecyl group,
Perchloropentadecyl group, perchloroeicosyl group,
Perbromopropyl, perbromobutyl, perbromopentyl, perbromohexyl, perbromooctyl, perbromododecyl, perbromopentadecyl, perbromoeicosyl and the like. All of these alkyl groups may be partially substituted with an alkoxy group such as a methoxy group or an ethoxy group, an aryloxy group such as a phenoxy group, or an aralkyloxy group such as a benzyloxy group.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
The aralkyl group for ⁵ or R ⁶ is preferably an aralkyl group having 7 to 20 carbon atoms, such as benzyl, (2-methylphenyl) methyl, (3-methylphenyl) methyl, and (4-methylphenyl) Methyl group,
(2,3-dimethylphenyl) methyl group, (2,4-dimethylphenyl) methyl group, (2,5-dimethylphenyl) methyl group, (2,6-dimethylphenyl) methyl group, (3,4-dimethyl Phenyl) methyl group, (4,6
-Dimethylphenyl) methyl group, (2,3,4-trimethylphenyl) methyl group, (2,3,5-trimethylphenyl) methyl group, (2,3,6-trimethylphenyl) methyl group, (3,4 , 5-trimethylphenyl) methyl group, (2,4,6-trimethylphenyl) methyl group, (2,3,4,5-tetramethylphenyl) methyl group, (2,3,4,6-tetramethylphenyl) ) Methyl, (2,3,5,6-tetramethylphenyl) methyl, (pentamethylphenyl) methyl, (ethylphenyl) methyl, (n-propylphenyl) methyl,
(Isopropylphenyl) methyl group, (n-butylphenyl) methyl group, (sec-butylphenyl) methyl group, (tert-butylphenyl) methyl group, (n-pentylphenyl) methyl group, (neopentylphenyl)
Methyl group, (n-hexylphenyl) methyl group, (n-
Octylphenyl) methyl group, (n-decylphenyl)
Methyl group, (n-dodecylphenyl) methyl group, (n-
Tetradecylphenyl) methyl group, naphthylmethyl group,
Examples include an anthracenylmethyl group, and more preferably a benzyl group. All of these aralkyl groups include a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, an alkoxy group such as a methoxy group and an ethoxy group, an aryloxy group such as a phenoxy group, and an aralkyloxy group such as a benzyloxy group. May be partially substituted.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
The aryl group for ⁵ or R ⁶ has 6 carbon atoms.
~ 20 aryl groups are preferable, for example, a phenyl group,
2-tolyl group, 3-tolyl group, 4-tolyl group, 2,3-
Xylyl group, 2,4-xylyl group, 2,5-xylyl group, 2,6-xylyl group, 3,4-xylyl group, 3,5
-Xylyl group, 2,3,4-trimethylphenyl group,
2,3,5-trimethylphenyl group, 2,3,6-trimethylphenyl group, 2,4,6-trimethylphenyl group, 3,4,5-trimethylphenyl group, 2,3,4
5-tetramethylphenyl group, 2,3,4,6-tetramethylphenyl group, 2,3,5,6-tetramethylphenyl group, pentamethylphenyl group, ethylphenyl group,
n-propylphenyl group, isopropylphenyl group, n
-Butylphenyl group, sec-butylphenyl group, te
rt-butylphenyl group, n-pentylphenyl group, neopentylphenyl group, n-hexylphenyl group, n-
Examples include an octylphenyl group, an n-decylphenyl group, an n-dodecylphenyl group, an n-tetradecylphenyl group, a naphthyl group, an anthracenyl group and the like, and more preferably a phenyl group. All of these aryl groups are
Partially substituted with a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, an alkoxy group such as a methoxy group or an ethoxy group, an aryloxy group such as a phenoxy group, or an aralkyloxy group such as a benzyloxy group. You may.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
The substituted silyl group in ⁵ or R ⁶ is a silyl group substituted with a hydrocarbon group, wherein the hydrocarbon group includes
For example, methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert
-Alkyl groups having 1 to 10 carbon atoms such as -butyl group, isobutyl group, n-pentyl group, n-hexyl group and cyclohexyl group, and aryl groups such as phenyl group. Examples of the substituted silyl group having 1 to 20 carbon atoms include mono-substituted silyl groups having 1 to 20 carbon atoms such as methylsilyl group, ethylsilyl group and phenylsilyl group, dimethylsilyl group, diethylsilyl group, diphenylsilyl group and the like. A disubstituted silyl group having 2 to 20 carbon atoms,
Trimethylsilyl group, triethylsilyl group, tri-n-
Propylsilyl group, triisopropylsilyl group, tri-
n-butylsilyl group, tri-sec-butylsilyl group,
Tri-tert-butylsilyl group, tri-isobutylsilyl group, tert-butyl-dimethylsilyl group, tri-
n-pentylsilyl group, tri-n-hexylsilyl group,
Examples thereof include a trisubstituted silyl group having 3 to 20 carbon atoms such as a tricyclohexylsilyl group and a triphenylsilyl group, and a trimethylsilyl group, a tert-butyldimethylsilyl group, or a triphenylsilyl group is preferable. All of these substituted silyl groups have a hydrocarbon group such as a fluorine atom, a chlorine atom, a bromine atom, a halogen atom such as an iodine atom, an alkoxy group such as a methoxy group or an ethoxy group, an aryloxy group such as a phenoxy group, or a benzyloxy group. May be partially substituted with an aralkyloxy group such as a group.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
^{As the} alkoxy group for ⁵ or R ^6, an alkoxy group having 1 to 20 carbon atoms is preferable. For example, a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group, an n-butoxy group, a sec-butoxy group, a tert-
Butoxy group, n-pentoxy group, neopentoxy group, n
-Hexoxy group, n-octoxy group, n-dodesoxy group, n-pentadeoxy group, n-icosoxy group and the like, and more preferably methoxy group, ethoxy group or tert-butoxy group. All of these alkoxy groups include a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, an alkoxy group such as a methoxy group and an ethoxy group, an aryloxy group such as a phenoxy group and an aralkyloxy group such as a benzyloxy group. May be partially substituted.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
The aralkyloxy group for ⁵ or R ⁶ is preferably an aralkyloxy group having 7 to 20 carbon atoms, for example, benzyloxy group, (2-methylphenyl) methoxy group, (3-methylphenyl) methoxy group, (4- A (methylphenyl) methoxy group, a (2,3-dimethylphenyl) methoxy group, a (2,4-dimethylphenyl) methoxy group, a (2,5-dimethylphenyl) methoxy group,
(2,6-dimethylphenyl) methoxy group, (3,4-
(Dimethylphenyl) methoxy group, (3,5-dimethylphenyl) methoxy group, (2,3,4-trimethylphenyl) methoxy group, (2,3,5-trimethylphenyl)
A methoxy group, a (2,3,6-trimethylphenyl) methoxy group, a (2,4,5-trimethylphenyl) methoxy group, a (2,4,6-trimethylphenyl) methoxy group,
(3,4,5-trimethylphenyl) methoxy group,
(2,3,4,5-tetramethylphenyl) methoxy, (2,3,4,6-tetramethylphenyl) methoxy, (2,3,5,6-tetramethylphenyl) methoxy, (penta (Methylphenyl) methoxy group, (ethylphenyl) methoxy group, (n-propylphenyl) methoxy group, (isopropylphenyl) methoxy group, (n
-Butylphenyl) methoxy group, (sec-butylphenyl) methoxy group, (tert-butylphenyl) methoxy group, (n-hexylphenyl) methoxy group, (n-
Examples thereof include (octylphenyl) methoxy, (n-decylphenyl) methoxy, (n-tetradecylphenyl) methoxy, naphthylmethoxy, and anthracenylmethoxy, and more preferably benzyloxy. All of these aralkyloxy groups include a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, an alkoxy group such as a methoxy group and an ethoxy group, an aryloxy group such as a phenoxy group, and an aralkyloxy group such as a benzyloxy group. It may be partially substituted with a group or the like.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
^The aryloxy group for ⁵ or R ⁶ is preferably an aryloxy group having 6 to 20 carbon atoms, for example, a phenoxy group, a 2-methylphenoxy group, a 3-methylphenoxy group, a 4-methylphenoxy group, a 2,3- Dimethylphenoxy group, 2,4-dimethylphenoxy group, 2,
5-dimethylphenoxy group, 2,6-dimethylphenoxy group, 3,4-dimethylphenoxy group, 3,5-dimethylphenoxy group, 2,3,4-trimethylphenoxy group, 2,3,5-trimethylphenoxy group, 2,3,6
-A trimethylphenoxy group, a 2,4,5-trimethylphenoxy group, a 2,4,6-trimethylphenoxy group,
3,4,5-trimethylphenoxy group, 2,3,4,5
-Tetramethylphenoxy group, 2,3,4,6-tetramethylphenoxy group, 2,3,5,6-tetramethylphenoxy group, pentamethylphenoxy group, ethylphenoxy group, n-propylphenoxy group, isopropylphenoxy group , N-butylphenoxy group, sec-butylphenoxy group, tert-butylphenoxy group, n-hexylphenoxy group, n-octylphenoxy group, n-decylphenoxy group, n-tetradecylphenoxy group, naphthoxy group, anthracenoxy group, etc. Is raised. All of these aryloxy groups are a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, an alkoxy group such as a methoxy group and an ethoxy group, an aryloxy group such as a phenoxy group, and an aralkyloxy group such as a benzyloxy group. It may be partially substituted with a group or the like.

The substituents X ¹ , X ² , R ¹ , R ² , R ³ , R ⁴ , R
^The disubstituted amino group in ⁵ or R ⁶ is an amino group substituted with two hydrocarbon groups, and examples of the hydrocarbon group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, -Alkyl group having 1 to 10 carbon atoms such as -butyl group, sec-butyl group, tert-butyl group, isobutyl group, n-pentyl group, n-hexyl group and cyclohexyl group, and 6 to 6 carbon atoms such as phenyl group And an aralkyl group having 7 to 10 carbon atoms. Examples of such a disubstituted amino group substituted with a hydrocarbon group having 1 to 10 carbon atoms include a dimethylamino group, a diethylamino group, a di-n-propylamino group, a diisopropylamino group, a di-n-butylamino group, Di-sec-butylamino group, di-ter
t-butylamino group, di-isobutylamino group, ter
t-butylisopropylamino group, di-n-hexylamino group, di-n-octylamino group, di-n-decylamino group, diphenylamino group, bistrimethylsilylamino group, bis-tert-butyldimethylsilylamino group and the like. And preferably a dimethylamino group or a diethylamino group. Each of these disubstituted amino groups is a halogen atom such as a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, an alkoxy group such as a methoxy group or an ethoxy group, an aryloxy group such as a phenoxy group, or an aralkyl group such as a benzyloxy group. Part may be substituted with an oxy group or the like.

The substituents R ¹ , R ² , R ³ , R ⁴ , R ⁵ and R ⁶
May be arbitrarily bonded to form a ring.

Preferably, R ¹ is an alkyl, aralkyl, aryl or substituted silyl group. Preferably, X ¹ and X ² are each independently a halogen atom, an alkyl group, an aralkyl group, an alkoxy group, an aryloxy group or a disubstituted amino group, and more preferably a halogen atom or an alkoxy group.

The atom of Group 16 of the periodic table of the element represented by X ³ in the general formula [II] or [III] includes, for example, an oxygen atom, a sulfur atom, a selenium atom and the like, preferably an oxygen atom It is.

As the transition metal complex represented by the general formula [I], for example, methylene (cyclopentadienyl)
(3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-t
tert-butyl-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-ter
t-butyl-5-methyl-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3
-Phenyl-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-tert
-Butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-trimethylsilyl-5-methyl-2-
Phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, methylene (cyclopentadienyl) (3-tert-butyl-5-chloro-2- Phenoxy) titanium dichloride,

Methylene (methylcyclopentadienyl)
(3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl)
(3-tert-butyl-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl) (3 -Phenyl-2-phenoxy)
Titanium dichloride, methylene (methylcyclopentadienyl) (3-tert-butyldimethylsilyl-
5-methyl-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl) (3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl) (3-tert-butyl- 5-methoxy-2-phenoxy) titanium dichloride, methylene (methylcyclopentadienyl) (3-tert-butyl-5-
Chloro-2-phenoxy) titanium dichloride,

Methylene (tert-butylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (tert-butylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride , Methylene (tert
-Butylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, methylene (tert-butylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, methylene (tert) -Butylcyclopentadienyl) (3-tert-butyldimethylsilyl-5-
Methyl-2-phenoxy) titanium dichloride, methylene (tert-butylcyclopentadienyl) (3
-Trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (tert-butylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, methylene (tert-butylcyclopentadiene) Enil) (3
-Tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Methylene (tetramethylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-tert-butyl-2-phenoxy)
Titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride , Methylene (tetramethylcyclopentadienyl) (3-ter
t-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-trimethylsilyl-5-
Methyl-2-phenoxy) titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-t
tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, methylene (tetramethylcyclopentadienyl) (3-tert-butyl-5-chloro-
2-phenoxy) titanium dichloride,

Methylene (trimethylsilylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, methylene (trimethylsilyl) Cyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) ) (3-tert-butyldimethylsilyl-5
Methyl-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) (3
-Trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, methylene (trimethylsilylcyclopentadienyl) (3
-Tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Methylene (fluorenyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-tert-butyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-tert-butyl- 5-methyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-phenyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-ter
t-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-tert-butyl-5- Methoxy-2-phenoxy) titanium dichloride, methylene (fluorenyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Isopropylidene (cyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, isopropylidene ( Cyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl) ) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl)
(3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, isopropylidene (cyclopentadienyl) (3-tert
-Butyl-5-chloro-2-phenoxy) titanium dichloride,

Isopropylidene (methylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, isopropylidene (methylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, isopropylidene Riden (methylcyclopentadienyl) (3-tert-butyl-5
-Methyl-2-phenoxy) titanium dichloride,
Isopropylidene (methylcyclopentadienyl) (3
-Phenyl-2-phenoxy) titanium dichloride, isopropylidene (methylcyclopentadienyl)
(3-tert-butyldimethylsilyl-5-methyl-
2-phenoxy) titanium dichloride, isopropylidene (methylcyclopentadienyl) (3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (methylcyclopentadienyl) (3-tert-butyl-5- Methoxy-2-
Phenoxy) titanium dichloride, isopropylidene (methylcyclopentadienyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Isopropylidene (tert-butylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, isopropylidene (te
rt-butylcyclopentadienyl) (3-tert-
Butyl-2-phenoxy) titanium dichloride, isopropylidene (tert-butylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (t
tert-butylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, isopropylidene (tert-butylcyclopentadienyl)
(3-tert-butyldimethylsilyl-5-methyl-
2-phenoxy) titanium dichloride, isopropylidene (tert-butylcyclopentadienyl) (3
-Trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (tert-
Butylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, isopropylidene (tert-butylcyclopentadienyl) (3-tert-butyl-5-chloro-2)
-Phenoxy) titanium dichloride,

Isopropylidene (tetramethylcyclopentadienyl) (3,5-dimethyl-2-phenoxy)
Titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3-tert-butyl-
2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3-t
tert-butyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3- tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3-trimethylsilyl-5-
Methyl-2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl)
(3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, isopropylidene (tetramethylcyclopentadienyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Isopropylidene (trimethylsilylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3-tert-
Butyl-2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3-phenyl- 2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl)
(3-tert-butyldimethylsilyl-5-methyl-
2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3
-Trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, isopropylidene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-chloro-2
-Phenoxy) titanium dichloride,

Isopropylidene (fluorenyl) (3,
5-dimethyl-2-phenoxy) titanium dichloride, isopropylidene (fluorenyl) (3-tert
-Butyl-2-phenoxy) titanium dichloride,
Isopropylidene (fluorenyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (fluorenyl) (3-phenyl-2-phenoxy) titanium dichloride, isopropylidene (fluorenyl) (3-tert- Butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (fluorenyl)
(3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, isopropylidene (fluorenyl) (3-tert-butyl-5-methoxy-2
-Phenoxy) titanium dichloride, isopropylidene (fluorenyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (cyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, diphenylmethylene ( Cyclopentadienyl) (3-tert-butyl-5-methyl-2
-Phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl) (3-phenyl-2-
Phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl) (3-trimethylsilyl-5-methyl- 2-
Phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, diphenylmethylene (cyclopentadienyl)
(3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (methylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (methylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, diphenyl Methylene (methylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (methylcyclopentadienyl) (3-phenyl-2-phenoxy) titanium dichloride, diphenylmethylene ( Methylcyclopentadienyl) (3-tert-butyldimethylsilyl-5-
Methyl-2-phenoxy) titanium dichloride, diphenylmethylene (methylcyclopentadienyl) (3
-Trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (methylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, diphenylmethylene (methylcyclopentadienyl) (3
-Tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (tert-butylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3-te
rt-butyl-2-phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3-tert-butyl-5-methyl-2)
-Phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3
-Phenyl-2-phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3-tert-butyldimethylsilyl-
5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3-trimethylsilyl-5-methyl-2
-Phenoxy) titanium dichloride, diphenylmethylene (tert-butylcyclopentadienyl) (3
-Tert-butyl-5-methoxy-2-phenoxy)
Titanium dichloride, diphenylmethylene (ter
t-butylcyclopentadienyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (tetramethylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride , Diphenylmethylene (tetramethylcyclopentadienyl)
(3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopentadienyl) (3-phenyl-2
-Phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopentadienyl) (3-t
tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopentadienyl) (3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopenta Dienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, diphenylmethylene (tetramethylcyclopentadienyl)
(3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (trimethylsilylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3-te
rt-butyl-2-phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-methyl-2)
-Phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3
-Phenyl-2-phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3-tert-butyldimethylsilyl-
5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3-trimethylsilyl-5-methyl-2
-Phenoxy) titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3
-Tert-butyl-5-methoxy-2-phenoxy)
Titanium dichloride, diphenylmethylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride,

Diphenylmethylene (fluorenyl)
(3,5-dimethyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-
tert-butyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-t
tert-butyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-phenyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-
tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-trimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-tert-butyl- 5-methoxy-2-phenoxy) titanium dichloride, diphenylmethylene (fluorenyl) (3-te
rt-butyl-5-chloro-2-phenoxy) titanium dichloride and the like, compounds obtained by changing titanium to zirconium or hafnium, dibromide to dichloride, diiodide, bis (dimethylamide), bis (diethylamide), -A compound changed to n-butoxide or diisopropoxide,
(Cyclopentadienyl) is replaced by (dimethylcyclopentadienyl), (trimethylcyclopentadienyl), (n
-Butylcyclopentadienyl), (tert-butyldimethylsilylcyclopentadienyl) or a compound modified to (indenyl), (3,5-dimethyl-2-
Phenoxy) to (2-phenoxy), (3-methyl-2)
-Phenoxy), (3,5-di-tert-butyl-2)
-Phenoxy), (3-phenyl-5-methyl-2-phenoxy), (3-tert-butyldimethylsilyl-
2-phenoxy) or (3-trimethylsilyl-2)
A transition metal complex wherein J in the general formula [I] is a carbon atom, such as a compound changed to -phenoxy);

Dimethylsilylene (cyclopentadienyl) (2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-methyl-
2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3,5-dimethyl-
2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-tert-
Butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl)
(3,5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (5-methyl-3-phenyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl)
(5-methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3-tert
-Butyl-5-chloro-2-phenoxy) titanium dichloride, dimethylsilylene (cyclopentadienyl) (3,5-diamyl-2-phenoxy) titanium dichloride,

Dimethylsilylene (methylcyclopentadienyl) (2-phenoxy) titanium dichloride,
Dimethylsilylene (methylcyclopentadienyl) (3
-Methyl-2-phenoxy) titanium dichloride,
Dimethylsilylene (methylcyclopentadienyl)
(3,5-dimethyl-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3-tert -Butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3,5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (5-methyl-3-phenyl-2-phenoxy)
Titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (5-methyl-3-trimethylsilyl- 2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3-tert-butyl- 5-chloro-2-phenoxy) titanium dichloride, dimethylsilylene (methylcyclopentadienyl) (3,5-diamyl-2-
Phenoxy) titanium dichloride,

Dimethylsilylene (n-butylcyclopentadienyl) (2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadienyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (n- Butylcyclopentadienyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadienyl) (3-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (n- Butylcyclopentadienyl) (3-tert-
Butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadienyl) (3,5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopenta Dienyl) (5-methyl-3
-Phenyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadienyl) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadiene) Enyl) (5-
Methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopentadienyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (n-butylcyclopenta Dienyl)
(3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride, dimethylsilylene (n-
Butylcyclopentadienyl) (3,5-diamyl-2
-Phenoxy) titanium dichloride,

Dimethylsilylene (tert-butylcyclopentadienyl) (2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (tert-butyl Butylcyclopentadienyl) (3,5-dimethyl-2-
Phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3-t
tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3-tert-butyl-5-methyl-2)
-Phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3,
5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (5-methyl-3-phenyl-
2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3
-Tert-butyldimethylsilyl-5-methyl-2-
Phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (5-methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3-tert-butyl- 5
-Methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3-tert-butyl-5-chloro-2-
Phenoxy) titanium dichloride, dimethylsilylene (tert-butylcyclopentadienyl) (3,5
-Diamyl-2-phenoxy) titanium dichloride,

Dimethylsilylene (tetramethylcyclopentadienyl) (2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopenta Dienyl) (3,5-dimethyl-2-phenoxy)
Titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-tert-butyl-
2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-t
tert-butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3,5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopenta Dienyl) (5-
Methyl-3-phenyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-tert-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopenta Dienyl) (5-methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-tert
-Butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl) (3-tert-butyl-5-chloro-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadiene) Enil) (3,
5-diamyl-2-phenoxy) titanium dichloride,

Dimethylsilylene (trimethylsilylcyclopentadienyl) (2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3,5-dimethyl-2-
Phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3-t
tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-methyl-2)
-Phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3,
5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (5-methyl-3-phenyl-
2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3
-Tert-butyldimethylsilyl-5-methyl-2-
Phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (5-methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5)
-Methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3-tert-butyl-5-chloro-2-
Phenoxy) titanium dichloride, dimethylsilylene (trimethylsilylcyclopentadienyl) (3,5
-Diamyl-2-phenoxy) titanium dichloride,

Dimethylsilylene (indenyl) (2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl)
(3,5-dimethyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-te
rt-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-tert-
Butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3,5-
Di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (5-methyl-3-phenyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-te
rt-butyldimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (5-methyl-3-trimethylsilyl-2-
Phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-tert-butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (indenyl) (3-tert-butyl-5
-Chloro-2-phenoxy) titanium dichloride,
Dimethylsilylene (indenyl) (3,5-diamyl-
2-phenoxy) titanium dichloride,

Dimethylsilylene (fluorenyl) (2-
Phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3,5-dimethyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3
-Tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3-t
tert-butyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl)
(3,5-di-tert-butyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (5-methyl-3-phenyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3-tert-butyl Dimethylsilyl-5-methyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (5-methyl-3-trimethylsilyl-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3-tert
-Butyl-5-methoxy-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3
-Tert-butyl-5-chloro-2-phenoxy) titanium dichloride, dimethylsilylene (fluorenyl) (3,5-diamyl-2-phenoxy) titanium dichloride, dimethylsilylene (tetramethylcyclopentadienyl)) (1-naphthoxy) -2-yl) titanium dichloride and the like, and (cyclopentadienyl) of these compounds is (dimethylcyclopentadienyl),
(Trimethylcyclopentadienyl), (ethylcyclopentadienyl), (n-propylcyclopentadienyl), (isopropylcyclopentadienyl), (se
c-butylcyclopentadienyl), (isobutylcyclopentadienyl), (tert-butyldimethylsilylcyclopentadienyl), (phenylcyclopentadienyl), (methylindenyl), or (phenylindenyl) Compound changed, (2-phenoxy) changed to (3-phenyl 2-phenoxy), (3-trimethylsilyl-2-phenoxy), or compound changed to (3-tert-butyldimethylsilyl-2-phenoxy), dimethylsilylene Is changed to diethylsilylene, diphenylsilylene, or dimethoxysilylene, a compound is changed to titanium, zirconium or hafnium, dichloride is dibromide, diiodide, bis (dimethylamide), bis (diethylamide), di-n-butoxide Or J in the general formula [I] such compound was changed to di isopropoxide include transition metal complexes is a Group 14 atoms of the Periodic Table of the Elements other than carbon atoms.

Examples of the transition metal complex represented by the general formula [II] include μ-oxobis {isopropylidene (η
⁵ -cyclopentadienyl) (2-phenoxy) titanium chloride {, μ-oxobis {isopropylidene (η ⁵ -cyclopentadienyl) (2-phenoxy) titanium methoxide}, μ-oxobis {isopropylidene (η ⁵ -Cyclopentadienyl) (3-tert-
Butyl-5-methyl-2-phenoxy) titanium chloride {, μ-oxobis} isopropylidene (η ⁵ −
Cyclopentadienyl) (3-tert-butyl-5-
Methyl-2-phenoxy) titanium methoxide {, μ
- Okisobisu {isopropylidene (eta ⁵ - cyclopentadienyl) (2-phenoxy) titanium chloride}, .mu. Okisobisu {isopropylidene (eta ⁵ - cyclopentadienyl) (2-phenoxy) titanium methoxide}, μ-oxobis {isopropylidene (η ⁵ -methylcyclopentadienyl) (3-tert
-Butyl-5-methyl-2-phenoxy) titanium chloride {, μ-oxobis} isopropylidene (η ⁵
-Methylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium methoxide {, μ-oxobis} isopropylidene (η ⁵ -tetramethylcyclopentadienyl) (2-phenoxy) titanium Chloride｝, μ-oxobis ｛isopropylidene (η ⁵ -tetramethylcyclopentadienyl) (2
-Phenoxy) titanium methoxide}, μ-oxobis {isopropylidene (η ⁵ -tetramethylcyclopentadienyl) (3-tert-butyl-5-methyl-2)
-Phenoxy) titanium chloride {, μ-oxobis} isopropylidene (η ⁵ -tetramethylcyclopentadienyl) (3-tert-butyl-5-methyl-2
-Phenoxy) titanium methoxide メ ト キ シ,

Μ-oxobis ｛dimethylsilylene (η ⁵
-Cyclopentadienyl) (2-phenoxy) titanium chloride｝, μ-oxobis {dimethylsilylene (η ⁵ -cyclopentadienyl) (2-phenoxy) titanium methoxide｝, μ-oxobis ｛dimethylsilylene (η ⁵ − Cyclopentadienyl) (3-tert-
Butyl-5-methyl-2-phenoxy) titanium chloride {, μ-oxobis} dimethylsilylene (η ⁵ −
Cyclopentadienyl) (3-tert-butyl-5-
Methyl-2-phenoxy) titanium methoxide {, μ
- Okisobisu {dimethylsilylene (eta ⁵ - cyclopentadienyl) (2-phenoxy) titanium chloride}, .mu. Okisobisu {dimethylsilylene (eta ⁵ - cyclopentadienyl) (2-phenoxy) titanium methoxide}, μ-oxobis ｛dimethylsilylene (η ⁵ -methylcyclopentadienyl) (3-tert
-Butyl-5-methyl-2-phenoxy) titanium chloride {, μ-oxobis} dimethylsilylene (η ⁵
-Methylcyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium methoxide {, μ-oxobis} dimethylsilylene (η ⁵ -tetramethylcyclopentadienyl) (2-phenoxy) titanium Chloride｝, μ-oxobis ｛dimethylsilylene (η ⁵ -tetramethylcyclopentadienyl) (2
-Phenoxy) titanium methoxide {, μ-oxobis} dimethylsilylene (η ⁵ -tetramethylcyclopentadienyl) (3-tert-butyl-5-methyl-2
-Phenoxy) titanium chloride｝, μ-oxobis ｛dimethylsilylene (η ⁵ -tetramethylcyclopentadienyl) (3-tert-butyl-5-methyl-2
-Phenoxy) titanium methoxide, and the like.

As the transition metal complex represented by the general formula [III], for example, di-μ-oxobis {isopropylidene (η ⁵ -cyclopentadienyl) (2-phenoxy)
Titanium, di-μ-oxobis {isopropylidene (η ⁵ -cyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium}, di-
μ-oxobis {isopropylidene (η ⁵ -methylcyclopentadienyl) (2-phenoxy) titanium},
Di-μ-oxobis {isopropylidene (η ⁵ -methylcyclopentadienyl) (3-tert-butyl-5-
Methyl-2-phenoxy) titanium, di-μ-oxobis {isopropylidene (η ⁵ -tetramethylcyclopentadienyl) (2-phenoxy) titanium}, di-μ-oxobis {isopropylidene (η ⁵ -tetramethyl) Cyclopentadienyl) (3-tert-butyl-
5-methyl-2-phenoxy) titanium｝, di-μ-
Okisobisu {dimethylsilylene (eta ⁵ - cyclopentadienyl) (2-phenoxy) titanium},

Di-μ-oxobis {dimethylsilylene (η ⁵ -cyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium}, di-
μ-oxobis {dimethylsilylene (η ⁵ -methylcyclopentadienyl) (2-phenoxy) titanium},
Di-μ-oxobis {dimethylsilylene (η ⁵ -methylcyclopentadienyl) (3-tert-butyl-5-
Methyl-2-phenoxy) titanium, di-μ-oxobis {dimethylsilylene (η ⁵ -tetramethylcyclopentadienyl) (2-phenoxy) titanium}, di-μ-oxobis {dimethylsilylene (η ⁵ -tetramethyl) Cyclopentadienyl) (3-tert-butyl-
5-methyl-2-phenoxy) titanium}, and the like.

The transition metal complex represented by the general formula [I] can be produced, for example, by the method described in WO 97/03992. In addition, the above general formula [II] or [II
The transition metal complex represented by the formula [I] is produced by reacting the transition metal complex represented by the general formula [I] with 0.5 times or 1 times the molar amount of water, respectively. At that time, a method of directly reacting the required amount of water with the transition metal complex represented by the general formula [I], the method represented by the general formula [I] in a solvent such as a hydrocarbon containing the required amount of water. The transition metal complex represented by the above general formula [I] is introduced into a solvent such as a dried hydrocarbon, and an inert gas containing a necessary amount of water is passed through. A method or the like can be adopted.

(B) Aluminum Compound The aluminum compound (B) used in the present invention is at least one aluminum compound selected from the following (B1) to (B3). (B1) the general formula E ¹ _a AlZ organoaluminum compound represented by the _3-a (B2) general formula {-Al (E ²⁾ -O-} cyclic aluminoxane (B3) having a structure represented by _b the formula E ³ ｛-Al (E ³ ) -O-｝ _c AlE ³
Linear aluminoxane having a structure represented by ₂ (provided that E ¹ , E ² , and E ³ are each a hydrocarbon group, and all E ¹ , all E ^2, and all E ³ are the same; Z represents a hydrogen atom or a halogen atom, and all Z may be the same or different, a is a number satisfying 0 <a ≦ 3, and b is 2 or more. And c represents an integer of 1 or more.) As the hydrocarbon group for E ¹ , E ² or E ³ , a hydrocarbon group having 1 to 8 carbon atoms is preferable, and an alkyl group is more preferable.

Specific examples of the organoaluminum compound (B1) represented by the general formula E ¹ _a AlZ _3-a include trialkylaluminums such as trimethylaluminum, triethylaluminum, tripropylaluminum, triisobutylaluminum and trihexylaluminum; Dialkylaluminum chlorides such as dimethylaluminum chloride, diethylaluminum chloride, dipropylaluminum chloride, diisobutylaluminum chloride and dihexylaluminum chloride; alkylaluminum dichlorides such as methylaluminum dichloride, ethylaluminum dichloride, propylaluminum dichloride, isobutylaluminum dichloride and hexylaluminum dichloride Dimethylal Examples thereof include dialkylaluminum hydrides such as minium hydride, diethylaluminum hydride, dipropylaluminum hydride, diisobutylaluminum hydride, and dihexylaluminum hydride. Preferably, it is a trialkylaluminum, and more preferably, triethylaluminum or triisobutylaluminum.

[0079] In the general formula {-Al (E ²⁾ -O-} cyclic aluminoxane having the structure represented by _b (B2), the general formula ^{E 3 {-Al (E 3)} -O-} c AlE 3 2 In a linear aluminoxane (B3) having the structure shown,
Specific examples of E ² and E ³ include a methyl group, an ethyl group, a normal propyl group, an isopropyl group, a normal butyl group,
Examples thereof include an alkyl group such as an isobutyl group, a normal pentyl group, and a neopentyl group. b is an integer of 2 or more, and c is an integer of 1 or more. Preferably, E ²
And E ³ is a methyl group or an isobutyl group, and b
Is 2 to 40 and c is 1 to 40.

The aluminoxane described above can be made by various methods. The method is not particularly limited, and may be made according to a known method. For example, a solution prepared by dissolving a trialkylaluminum (for example, trimethylaluminum) in a suitable organic solvent (benzene, aliphatic hydrocarbon, or the like) is brought into contact with water. In addition, a method in which a trialkylaluminum (for example, trimethylaluminum or the like) is brought into contact with a metal salt (for example, copper sulfate hydrate or the like) containing water of crystallization can be exemplified.

(C) Boron Compound In the present invention, the boron compound (C) includes (C1)
A boron compound represented by the general formula BQ ¹ Q ² Q ³ , (C
2) a boron compound represented by the general formula G ⁺ (BQ ¹ Q ² Q ³ Q ⁴ ) ^— , (C3) a general formula (LH) ⁺ (BQ ¹ Q ² Q ³ Q)
^{4) -} one of boron compound represented by can be used.

In the boron compound (C1) represented by the general formula BQ ¹ Q ² Q ³ , B is a trivalent boron atom, and Q ^{1 to} Q ³ are a halogen atom, a hydrocarbon group, or a halogen atom. A substituted hydrocarbon group, a substituted silyl group, an alkoxy group or a disubstituted amino group, which may be the same or different. Q ^{1 to} Q ³ are preferably a halogen atom, a hydrocarbon group containing 1 to 20 carbon atoms, 1 to 20
A halogenated hydrocarbon group containing 1 to 20 carbon atoms, a substituted silyl group containing 1 to 20 carbon atoms, an alkoxy group containing 1 to 20 carbon atoms or an amino group containing 2 to 20 carbon atoms. Q ^{1 to} Q ³ are more preferably a halogen atom, a hydrocarbon group containing 1 to 20 carbon atoms, or 1
Halogenated hydrocarbon groups containing up to 20 carbon atoms. More preferably, Q ^{1 to} Q ⁴ are each a fluorinated hydrocarbon group having 1 to 20 carbon atoms containing at least one fluorine atom, and particularly preferably, Q ^{1 to} Q ⁴ each have at least one fluorine atom. 6 to 2 carbon atoms including atoms
0 is a fluorinated aryl group.

As specific examples of the compound (C1), tris (pentafluorophenyl) borane, tris (2,3,
5,6-tetrafluorophenyl) borane, tris (2,3,4,5-tetrafluorophenyl) borane,
Tris (3,4,5-trifluorophenyl) borane,
Tris (2,3,4-trifluorophenyl) borane,
Phenylbis (pentafluorophenyl) borane and the like can be mentioned, and most preferred is tris (pentafluorophenyl) borane.

In the boron compound (C2) represented by the general formula G ⁺ (BQ ¹ Q ² Q ³ Q ⁴ ) ^- , G ⁺ is an inorganic or organic cation, and B is boron in a trivalent valence state. And Q ^{1 to} Q ⁴ are Q ^{1 to} Q ³ in the above (C1).
Is the same as

[0085] formula ^{G + (BQ 1 Q 2 Q} 3 Q 4) - Examples of G ⁺ as an inorganic cation in the compound represented by, ferrocenium cation, alkyl-substituted ferrocenium cation, silver Examples of G ^{+ in} which a cation or the like is an organic cation include a triphenylmethyl cation. G ⁺ is preferably a carbenium cation, and particularly preferably a triphenylmethyl cation. ^{(BQ 1 Q 2 Q 3 Q} 4) - as the tetrakis (pentafluorophenyl) borate, tetrakis (2,3,5,6-tetrafluorophenyl) borate, tetrakis (2,3,4,5-tetrafluoro Phenyl) borate, tetrakis (3,4,5-trifluorophenyl) borate, tetrakis (2,3,4-trifluorophenyl) borate, phenyltris (pentafluorophenyl) borate, tetrakis (3,5-bistriborate) Fluoromethylphenyl) borate and the like.

Specific combinations of these include ferrocenium tetrakis (pentafluorophenyl) borate, 1,1′-dimethylferrocenium tetrakis (pentafluorophenyl) borate, silver tetrakis (pentafluorophenyl) borate, Phenylmethyltetrakis (pentafluorophenyl) borate,
Triphenylmethyltetrakis (3,5-bistrifluoromethylphenyl) borate and the like can be mentioned, and most preferred is triphenylmethyltetrakis (pentafluorophenyl) borate.

The formula (LH) ⁺ (BQ ¹ Q ² Q ³ Q
^{4) -} In the boron compound represented (C3), L is a neutral Lewis base, (L-H) ⁺ is a Bronsted acid, B is boron atom in the trivalent valence state ,
Q ¹ to Q ⁴ are the same as Q ¹ to Q ³ in the above Lewis acid (C1).

The compound represented by the general formula (LH) ⁺ (BQ ¹ Q ² Q ³ Q ⁴ ) ^— is a Bronsted acid (L-
Specific examples of H) ⁺ include trialkyl-substituted ammonium, N, N-dialkylanilinium, dialkylammonium, triarylphosphonium, and the like.
Examples of (BQ ¹ Q ² Q ³ Q ⁴ ) ⁻ include the same as those described above.

As specific combinations of these, triethylammonium tetrakis (pentafluorophenyl) borate, tripropylammonium tetrakis (pentafluorophenyl) borate, tri (n-butyl) ammonium tetrakis (pentafluorophenyl) borate, tri ( n-butyl) ammonium tetrakis (3,5-bistrifluoromethylphenyl) borate, N, N-dimethylanilinium tetrakis (pentafluorophenyl) borate, N, N-diethylanilinium tetrakis (pentafluorophenyl) borate, N, N N-2,4,6-pentamethylanilinium tetrakis (pentafluorophenyl) borate, N, N
-Dimethylanilinium tetrakis (3,5-bistrifluoromethylphenyl) borate, diisopropylammonium tetrakis (pentafluorophenyl) borate, dicyclohexylammonium tetrakis (pentafluorophenyl) borate, triphenylphosphonium tetrakis (pentafluorophenyl) borate,
Tri (methylphenyl) phosphonium tetrakis (pentafluorophenyl) borate, tri (dimethylphenyl) phosphonium tetrakis (pentafluorophenyl) borate and the like can be mentioned, and most preferably, tri (n-butyl) ammonium tetrakis (pentafluoro) Phenyl) borate or N, N-
Dimethylanilinium tetrakis (pentafluorophenyl) borate.

[Polymerization] In the present invention, the above transition metal complex (A) is combined with the above (B) and / or (C)
And an addition polymerization catalyst obtained by contacting the above.
When the addition polymerization catalyst comprising (A) and (B) is used, (B) may be the aforementioned cyclic aluminoxane (B
2) and / or linear aluminoxanes (B3) are preferred. As another preferred embodiment of the addition polymerization catalyst, an addition polymerization catalyst using the above (A), (B) and (C) is exemplified. ) Easy to use.

The amount of each component used is usually such that the molar ratio of (B) / (A) is from 0.1 to 10,000, preferably from 5 to 200.
It is desirable to use each component so that the molar ratio of 0, (C) / (A) is 0.01 to 100, preferably 0.5 to 10. When each component is used in a solution state or a suspension state in a solvent, the concentration is appropriately selected depending on conditions such as the performance of an apparatus for supplying each component to the polymerization reactor. .01-500 μmol
/ G, more preferably 0.05 to 100 μmol /
g, more preferably 0.05 to 50 μmol / g,
(B) is usually 0.01 to 10,000 in terms of Al atom.
μmol / g, more preferably 0.1 to 5000 μm
mol / g, more preferably 0.1 to 2000 μm
ol / g, (C) is usually 0.01 to 500 μmol /
g, more preferably 0.05 to 200 μmol /
g, more preferably 0.05 to 100 μmol / g
It is desirable to use each component so as to fall within the range.

The catalyst used in the present invention may further include Si
A particulate carrier including an inorganic carrier such as O ₂ and Al ₂ O _{3 and} an organic polymer carrier such as a polymer such as ethylene and styrene may be used in combination.

The copolymer of the present invention is obtained by copolymerizing an olefin selected from the group consisting of ethylene and α-olefin, an alkenyl aromatic hydrocarbon, and a diene using such an olefin polymerization catalyst. . The amount of the diene used is usually 0.1% of the alkenyl aromatic hydrocarbon.
0001 to 10 mol%. The preferred amount of the diene is 0.0001 to 1 mol of the alkenyl aromatic hydrocarbon.
1%, more preferably 0.0001 to 0.1%.
mol%. Particularly preferred amount of the diene is 0.0001 to 0.01 mol of the alkenyl aromatic hydrocarbon.
%.

In carrying out the method of the present invention, the polymerization method is not particularly limited, and examples thereof include a batch or continuous gas phase polymerization method, a bulk polymerization method, a solution polymerization method using a suitable solvent, and a slurry polymerization method. Any method can be used. When a solvent is used, various solvents can be used provided that they do not deactivate the catalyst. Examples of such a solvent include hydrocarbons such as benzene, toluene, pentane, hexane, heptane, and cyclohexane; And halogenated hydrocarbon groups such as styrene chloride.

The polymerization temperature is not particularly limited, and is generally -100 to 250 ° C, preferably -50 to 200 ° C. The pressure is not limited, but is generally 10 MPa or less, preferably 0.2 MPa to 5 MPa.
a. In addition, a chain transfer agent such as hydrogen can be added to adjust the molecular weight of the polymer.

The copolymer of the present invention can be used for molded articles such as films, sheets and containers.
Particularly suitable for films or sheets.

For the film or sheet, for example, the melted resin is extruded from a circular die, and the film or sheet is wound, and the molten resin is extruded from a linear die, and the film or sheet is wound. It can be obtained by T-die molding or calendar molding.

The molded article of the present invention is transparent and has excellent properties in flexibility and elastic recovery. Such flexibility and elastic recovery can be examined by obtaining a hysteresis curve by a tensile test.

The copolymer of the present invention can be used in the form of a multilayer film or sheet of two or more layers with other materials. At this time, the film or sheet can be manufactured by various known laminating methods such as a coextrusion method, a dry lamination method, a sandwich lamination method, and an extrusion lamination method. Other materials include paper,
Known materials such as paperboard, aluminum thin film, cellophane, nylon, polyethylene terephthalate (PET), polypropylene, polyvinylidene chloride, ethylene-vinyl alcohol copolymer (EVOH), and various adhesive resins can be used.

The molded product of the present invention includes a molded product obtained by blow molding or injection molding.

The molded article of the present invention may contain, if necessary, an antioxidant, a weathering agent, a lubricant, an anti-blocking agent, an antistatic agent,
Known additives such as anti-fogging agents, drip-free agents, pigments, and fillers can be contained. Further, a known polymer substance such as a low-density polyethylene, a high-density polyethylene, a linear low-density polyethylene, an ethylene-α-olefin copolymer elastomer, and a polypropylene may be blended. The film or sheet of the present invention can be subjected to known post-treatments such as corona discharge treatment, plasma treatment, ozone treatment, ultraviolet irradiation, and electron beam irradiation.

[0102]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the scope of the present invention is not limited by these Examples. In addition, the property of the polymer in an Example was measured by the following method.

The glass transition point and the melting point were measured using DSC (SSC-5200 manufactured by Seiko Instruments Inc.) under the following conditions, and were determined from the inflection point. Temperature rise 20 ° C to 200 ° C (20 ° C / min) 10 minutes hold Cooling 200 ° C to -50 ° C (20 ° C / min) hold 10 minutes Measurement -50 ° C to 300 ° C (20 ° C / min)

The molecular weight and the molecular weight distribution were measured by gel permeation chromatography (800, manufactured by JASCO Corporation).
Series), and determined under the following conditions. Column Shodex A806M Measurement temperature 45 ° C Measurement solvent Tetrahydrofuran Measurement concentration 0.5mg / ml

The styrene unit content in the polymer and the structure of the polymer were determined by ¹³ C-NMR (JNM-EX manufactured by JEOL Ltd.).
270) Determined by analysis. Measurement solvent 8 of orthodichlorobenzene and heavy benzene
5:15 (weight ratio) mixed solution Measurement temperature 135 ° C

The tensile test of the polymer was carried out using a Strograph-T
Using Toyo Seiki Seisakusho under the following conditions, a hysteresis curve with a tensile magnification of 2 and an elongation until fracture (%) were determined. Test piece 120 mm x 20 mm x 0.3 mm press sheet Pulling speed 200 mm / min Distance between chucks 60 mm

A polymer having a thickness of 100 μm was formed by preheating at 180 ° C. for 3 minutes and hot pressing at 180 ° C. under a pressure of 3 to 5 MPa for 3 minutes.
As a test piece cut out into a size of mm × 30 mm, the test piece was examined using an Abbe refractometer type 3 (manufactured by Atago Co., Ltd.).

Example 1 400 m purged with argon
1 ml of styrene, 25 μl of a toluene solution of divinylbenzene [p-divinylbenzene manufactured by Nissei Chemical Co., Ltd.] (0.1 mol / l), and 71 ml of dehydrated toluene were charged into a 1 l autoclave, and ethylene was added at 0.8 MPa.
I charged. 2.0 ml of a toluene solution of triisobutylaluminum (1 mol / l, manufactured by Tosoh Akzo) and isopropylidene (cyclopentadienyl) having the following structural formula
A solution prepared by dissolving 3.0 mg of (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride in 4 ml of dehydrated toluene was mixed in advance, and then charged.
A solution prepared by dissolving 22.2 mg of triphenylmethyltetrakis (pentafluorophenyl) borate in 4.8 ml of dehydrated toluene was added, and the reaction solution was stirred at 60 ° C. for 1 hour. Thereafter, the reaction solution was poured into a mixture of 5 ml of hydrochloric acid (12N) and 1000 ml of acetone, and the precipitated white solid was collected by filtration. The solid was washed with acetone and dried under reduced pressure to obtain 8.34 g of a polymer. The number average molecular weight of this polymer was 241,000, the molecular weight distribution (weight average molecular weight / number average molecular weight) was 2.07, and the styrene unit content was 35 mol%. The glass transition point was 11 ° C., and the melting point could not be confirmed. The refractive index of the polymer film was 1.562. ¹³ C-NM
In the R spectrum, the ratio of the peak area appearing at 34.0 to 36.0 ppm to the peak area appearing at 36.0 to 38.0 ppm was 0.09. FIG. 1 shows a hysteresis curve of the polymer. The polymer is excellent in flexibility, and the measurement specimen after the measurement is almost 10
It recovered by 0%. Further, the elongation at break was 403%, which was excellent in mechanical strength. The press sheet created for the measurement was very transparent.

Example 2 400 m purged with argon
55 ml of styrene, 1.25 ml of a toluene solution of divinylbenzene [p-divinylbenzene manufactured by Nissei Chemical Co., Ltd.] (0.1 mol / l), and 19 ml of dehydrated toluene were charged into an autoclave of 1 l each, and then propylene was added in an amount of 0.8 ml.
Mpa was charged. A solution of 6.0 mg of isopropylidene (cyclopentadienyl) (3-tert-butyl-5-methyl-2-phenoxy) titanium dichloride in 8 ml of dehydrated toluene and a toluene solution of triisobutylaluminum [Tosoh Akzo Co., Ltd. 1 mol /
l] was mixed in advance with 4.0 ml, then a solution prepared by dissolving 44.3 mg of triphenylmethyltetrakis (pentafluorophenyl) borate in 9.6 ml of dehydrated toluene was added, and the reaction solution was stirred at 60 ° C for 1 hour. . Thereafter, 5 ml of hydrochloric acid (12N) and 1000 ml of acetone were added.
It was poured into the mixture of the above-mentioned mixture and the precipitated white solid was collected.
The solid was washed with acetone and dried under reduced pressure to obtain 6.88 g of a polymer. The number average molecular weight of this polymer is 82,
000, molecular weight distribution (weight average molecular weight / number average molecular weight)
Was 1.97. The glass transition point was 33 ° C., and the melting point was not substantially confirmed. The refractive index of the polymer film was 1.522. The press sheet prepared for the measurement was very transparent.

Reference Example 1 The procedure of Example 1 was repeated except that divinylbenzene was not charged, to obtain 8.89 g of a polymer. The number average molecular weight of this polymer is 15
6,000, molecular weight distribution (weight average molecular weight / number average molecular weight) was 2.04, and glass transition point was 12 ° C. As a result of a tensile test, the elongation at break was 390%.

Reference Example 2 The procedure of Example 2 was repeated except that divinylbenzene was not charged, to obtain 4.08 g of a polymer. The number average molecular weight of this polymer is 72,
000, molecular weight distribution (weight average molecular weight / number average molecular weight)
Was 1.88 and the glass transition point was 32 ° C.

[0112]

As described above, according to the present invention,
A copolymer having a high molecular weight and a narrow molecular weight distribution, an elastic recovery property, and excellent transparency, which can take a configuration containing no halogen which is regarded as a problem from the viewpoint of environmental pollution. The production method and a molded article made of the copolymer which is transparent and excellent in mechanical strength, flexibility and elastic recovery are provided, and its industrial value is extremely large.

[Brief description of the drawings]

FIG. 1 is a hysteresis curve of a copolymer obtained in Example 1.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08F 232/00 C08F 232/00 236/00 236/00 C08J 5/00 CES C08J 5/00 CES 5/18 CES 5/18 CES // C08L 23:08

Claims (10)

[Claims] 1. A copolymer obtained by copolymerizing an olefin selected from the group consisting of ethylene and α-olefin, an alkenyl aromatic hydrocarbon, and a diene, wherein the copolymer has a weight average molecular weight (Mw) and a number average A copolymer having a molecular weight distribution (Mw / Mn) expressed as a ratio to the molecular weight (Mn) of 1.5 to 12.0. 2. The method according to claim 1, wherein the olefin is ethylene, and ¹³ C-NM.
In the R spectrum, the ratio (/) of the peak area appearing at 34.0 to 36.0 ppm to the peak area appearing at 36.0 to 38.0 ppm (/) is 0.01 to 0.0.
The copolymer according to claim 1, wherein the copolymer is 25. 3. The copolymer according to claim 1, wherein the olefin is propylene. 4. The number average molecular weight (Mn) is from 50,000 to
The amount is 1,000,000.
3. The copolymer according to any one of 3. 5. A molecular weight distribution (Mw / Mn) of 1.5 to 1.5.
The copolymer according to any one of claims 1 to 4, wherein the copolymer is 4.0. 6. The copolymer according to claim 1, having no crystallinity. 7. The copolymer according to claim 1, wherein the diene is a bisalkenyl aromatic hydrocarbon. 8. The copolymer according to claim 1, wherein
The method of (A), (B) and / or
Or a catalyst for addition polymerization obtained by contacting the polymer with (C).
Currently, selected from the group consisting of ethylene and α-olefins
Olefin, alkenyl aromatic hydrocarbon,
Method for producing copolymer characterized by copolymerizing ene with ene
Law. (A): represented by the following general formula [I], [II] or [III]
Transition metal complexes(In the above general formulas [I] to [III], M¹Is
Represents a transition metal atom of Group 4 of the Periodic Table of the Elements, where A is an element
Indicates an atom belonging to Group 16 of the Periodic Table of the Elements, and J is the period of the element
Shows the atoms of Group 14 of the Rule. Cp¹Is cyclopentadi
A group having an ene-type anion skeleton is shown. X¹, X^Two,
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Are independent of each other,
Hydrogen atom, halogen atom, alkyl group, aralkyl group,
Aryl group, substituted silyl group, alkoxy group, aralkyl
Represents an oxy group, an aryloxy group or a disubstituted amino group
You. X^ThreeRepresents an atom belonging to Group 16 of the periodic table of the elements.
R¹, R^Two, R^Three, R^Four, R^FiveAnd R⁶Is optionally bonded to a ring
May be formed. In general formula [II] or [III]
Two M¹, A, J, Cp¹, X¹, X^Two, X^Three, R¹, R
^Two, R ^Three, R^Four, R^FiveAnd R⁶Are the same even if
It may be different. (B): at least one selected from the following (B1) to (B3)
(B1) General formula E¹ _aAlZ_3-aOrganic aluminum indicated by
Compound (B2) General formula ｛-Al (E^Two) -O-｝_bIndicated by
Cyclic aluminoxane having a structure (B3) General formula E^Three｛-Al (E^Three) -O-｝_cAlE^Three
_TwoLinear aluminoxane having a structure represented by the following formula (provided that E¹, E^TwoAnd E^ThreeIs a hydrocarbon group
Yes, all E¹, All E^TwoAnd all E^ThreeIs the same
May be different. Z is a hydrogen atom or halo
Gen atom, all Z are the same or different
May be. a is a number satisfying 0 <a ≦ 3, b is 2 or more
And c represents an integer of 1 or more. (C): Boration of any of the following (C1) to (C3)
Compound (C1) General formula BQ¹Q^TwoQ^ThreeBoron compound represented by
Object, (C2) general formula G⁺(BQ¹Q^TwoQ^ThreeQ^Four)^-E represented by
Iodine compound, (C3) General formula (LH)⁺(BQ¹Q^TwoQ^ThreeQ^Four)^-In table
(Where B is a boron atom in a trivalent state, Q
¹~ Q^FourIs a halogen atom, hydrocarbon group, halogenated hydrocarbon
Group, substituted silyl group, alkoxy group or disubstituted amino
Groups, which may be the same or different
No. G⁺Is an inorganic or organic cation, and L is neutral
A Lewis base, (LH)⁺Is Bronsted acid
is there. ) 9. A molded article comprising the copolymer according to any one of claims 1 to 7. 10. The molded article according to claim 9, wherein the molded article is a film or a sheet.