JP2006169283A - Solid catalyst component, catalyst for olefin polymerization, and method for producing olefin polymer or copolymer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a catalyst for olefin polymerization which has high catalyst activity, can obtain a polymer having high stereoregularity at a high yield and has good hydrogen response, and to provide a method for producing olefin polymers using the catalyst. <P>SOLUTION: The catalyst for olefin polymerization is formed from a solid catalyst component for olefin polymerization obtained by bringing a solid component (a) containing magnesium, titanium, halogen and an electron-donating compound into contact with an organosilicon compound, an organosilicon compound (b) represented by [CH<SB>2</SB>=CH-(CH<SB>2</SB>)<SB>n</SB>]<SB>q</SB>SiR<SP>3</SP><SB>4-q</SB>and an organoaluminum compound, and an organoaluminum compound (B). The method for producing olefin polymers or copolymers are carried out in the presence of the above described catalyst. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a solid catalyst component and a catalyst for polymerization of olefins having a high hydrogen response and a high effect on the melt flow rate of hydrogen, which can maintain the stereoregularity and yield of the polymer at high levels, and The present invention relates to a method for producing a polymer or copolymer of olefins to be used.

  Conventionally, in the polymerization of olefins such as propylene, solid catalyst components containing magnesium, titanium, an electron donating compound and halogen as essential components are known. Many methods for polymerizing or copolymerizing olefins in the presence of an olefin polymerization catalyst comprising the solid catalyst component, an organoaluminum compound and an organosilicon compound have been proposed. For example, in Patent Document 1 (Japanese Patent Laid-Open No. 57-63310) and Patent Document 2 (Japanese Patent Laid-Open No. 57-63311), a magnesium compound, a titanium compound, and an organosilicon compound having a Si—O—C bond are used. In particular, a method for polymerizing olefins having 3 or more carbon atoms using a catalyst composed of a combination has been proposed. However, these methods are not always satisfactory for obtaining a high stereoregularity polymer in a high yield, and further improvement has been desired.

  On the other hand, in Patent Document 3 (Japanese Patent Laid-Open No. 63-3010), a product obtained by contacting dialkoxymagnesium, aromatic dicarboxylic acid diester, aromatic hydrocarbon compound and titanium halide is in a powder state. A propylene polymerization catalyst comprising a solid catalyst component prepared by heat treatment with, an organoaluminum compound and an organosilicon compound, and a method for polymerizing propylene have been proposed.

  Moreover, in patent document 4 (Unexamined-Japanese-Patent No. 3-234707), the solid component (i) which contains titanium, magnesium, and a halogen as an essential component, The organosilicon compound (ii) containing two or more Si-OR bonds , A Ziegler type solid catalyst component for α-olefin polymerization obtained by contacting a vinylsilane compound (iii) and an organometallic compound (iv) of groups I to III of the periodic table, and the solid catalyst component and organoaluminum compound A catalyst for propylene and a method for polymerizing propylene in the presence of the catalyst have been proposed.

  Each of the above prior arts has such a high activity that the purpose of removing a so-called deashing step for removing catalyst residues such as chlorine and titanium remaining in the produced polymer can be omitted. Although efforts have been made to improve the yield and to increase the sustainability of the catalyst activity during the polymerization, each of them has achieved results, but improvement of the catalyst for such purpose is still desired.

  By the way, the polymer obtained by using the catalyst as described above is used for various uses such as containers and films in addition to molded articles such as automobiles and home appliances. They melt polymer powder produced by polymerization and are molded by various molding machines. Especially when manufacturing large molded products by injection molding, the flowability of melted polymer (melt flow rate, MFR) May be required to be high. In particular, in order to reduce the cost of highly functional block copolymers for automotive materials, we produce as many copolymers as necessary for the production of olefinic thermoplastic elastomers (hereinafter referred to as “TPO”) in the copolymerization reactor. However, in the production of TPO directly in the polymerization reactor without adding a newly synthesized copolymer after production, that is, in the production of reactor-made TPO by direct weight in the industry, the melt flow of the final product In order to keep the rate sufficiently large and facilitate injection molding, the melt flow rate in the homopolymerization stage may be required to be 200 or more, and therefore, many studies have been made to increase the melt flow rate of the polymer. .

  The melt flow rate is highly dependent on the molecular weight of the polymer. In the industry, hydrogen is generally added as a molecular weight regulator for the produced polymer in the polymerization of propylene. At this time, in order to produce a low molecular weight polymer, that is, in order to produce a polymer having a high melt flow rate, a large amount of hydrogen is usually added. However, particularly in a bulk polymerization apparatus, the pressure resistance of the reactor is limited due to its safety. There is also a limit to the amount of hydrogen that can be added. Further, even in the gas phase polymerization, in order to add more hydrogen, the partial pressure of the monomer to be polymerized must be reduced, and in this case, productivity is lowered. In addition, the use of a large amount of hydrogen also causes cost problems. Therefore, the development of a catalyst having a higher effect on the melt flow rate of the so-called hydrogen amount than that of the conventional catalyst so that a polymer having a high melt flow rate can be produced with a smaller amount of hydrogen was desired. However, it was not sufficient to fundamentally solve the problem of TPO production due to the direct weight described above.

JP-A-57-63310 (Claims) JP-A-57-63311 (Claims) JP 63-3010 A (Claims) JP-A-3-234707 (Claims)

  Accordingly, an object of the present invention is to provide a solid catalyst component for polymerizing olefins having a high hydrogen response, which can maintain a high degree of polymer stereoregularity and yield, and has a large effect on the melt flow rate of hydrogen. It is an object of the present invention to provide a catalyst and a method for producing an olefin polymer using the catalyst.

  In such a situation, the present inventors have conducted extensive studies, and as a result, the solid component containing magnesium, titanium, halogen, and an electron-donating compound has two types of organosilicon compounds and a specific structure. It has been found that a catalyst formed from a solid catalyst component obtained by contacting an organoaluminum compound having an organic group and an organoaluminum compound is more suitable as a catalyst for polymerization and copolymerization of olefins than the conventional catalyst described above. The present invention has been completed.

That is, the present invention represents an organic silicon compound (b) represented by the following general formula (1) in the solid component (a) containing magnesium, titanium, halogen and an electron donating compound, and represented by the following general formula (2). It provides a solid catalyst component for olefin polymerization, which is obtained by contacting an organosilicon compound (c) and an organoaluminum compound (d) represented by the following general formula (3).
R ¹ _p Si (OR ² ) _4-p (1)
(In the formula, R ¹ is a hydrogen atom or a linear or branched alkyl group having 1 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, an allyl group, an aralkyl group, a monoalkylamino group, a dialkylamino group. , A cycloalkylamino group, and a polycyclic amino group, which may be the same or different, R ² is an alkyl group having 1 to 4 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, an allyl group, or an aralkyl group. And may be the same or different, and p is an integer of 1 to 3.)
_{[CH 2 = CH- (CH 2)} n ] _{^{q SiR 3 4-q (2}} )
(Wherein R ³ represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, or a halogen atom, and may be the same or different, and n is an integer of 1 to 5) And q is an integer of 1 to 4. However, when q is 1, at least one of R ³ includes an alkyl group having 2 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, or a halogen atom. .)
_{^{R 4 r AlQ 3-r (}} 3)
(In the formula, R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, Q represents a hydrogen atom or a halogen atom, and r is a real number of 0 <p ≦ 3.)

The present invention also provides the solid catalyst component, and (B) the following general formula (3); R ⁴ _r AlQ _{3 -r} (3)
(Wherein R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, Q represents a hydrogen atom or a halogen atom, and r is a real number of 0 <p ≦ 3). The present invention provides a catalyst for olefin polymerization.

  Furthermore, the present invention provides a method for producing an olefin polymer or copolymer, which is carried out in the presence of the olefin polymerization catalyst.

  The catalyst using the catalyst component for olefin polymerization of the present invention can maintain a higher degree of polymer stereoregularity and yield than conventional catalysts, and has a large effect on the melt flow rate of hydrogen (hereinafter simply referred to as “hydrogen”). Response "). Therefore, it is possible to provide a general-purpose polyolefin at a low cost due to functions such as reduction in the amount of hydrogen used in polymerization and high catalyst activity, and it is expected to be useful in the production of highly functional olefin polymers. The Furthermore, by using an organic silicon compound (external electron-donating compound) that has been in contact with a solid catalyst component just before the polymerization of olefins to form a catalyst, the solid catalyst component can be used as a conventional external electron-donating compound. The amount of the organosilicon compound used can be greatly reduced, and the production cost of the resulting polymer can be reduced.

  The solid catalyst component (A) of the present invention (hereinafter sometimes referred to as “component (A)”) is a solid component (a) containing magnesium, titanium, halogen and an electron donating compound (hereinafter referred to as “component ( a) "may be referred to as an organic silicon compound (b) represented by the general formula (1) (hereinafter also referred to as" component (b) "), and represented by the general formula (2). Organosilicon compound (c) (hereinafter sometimes referred to as “component (c)”) and organoaluminum compound (d) represented by general formula (3) (hereinafter referred to as “component (d)”) May be obtained by contacting them.

  The solid component (a) includes a magnesium compound (i) (hereinafter also referred to as “component (i)”), a titanium compound (ii) (hereinafter also referred to as “component (ii)”), and An electron donating compound (iii) (hereinafter sometimes referred to as “component (iii)”) can be obtained by contact. In addition to component (i), component (ii) and component (iii), solid component (a) also includes aromatic hydrocarbon compound (iv) (hereinafter sometimes referred to as “component (iv)”). It can be obtained by contacting them together.

  Examples of the magnesium compound (i) used for the preparation of the solid component include dihalogenated magnesium, dialkylmagnesium, halogenated alkylmagnesium, dialkoxymagnesium, diaryloxymagnesium, halogenated alkoxymagnesium, and fatty acid magnesium. Among these magnesium compounds, magnesium dihalide, a mixture of magnesium dihalide and dialkoxymagnesium, dialkoxymagnesium is preferable, dialkoxymagnesium is particularly preferable, specifically, dimethoxymagnesium, diethoxymagnesium, dipropoxymagnesium, Examples include butoxymagnesium, ethoxymethoxymagnesium, ethoxypropoxymagnesium, and butoxyethoxymagnesium. Diethoxymagnesium is particularly preferable.

  These dialkoxymagnesium may be obtained by reacting metal magnesium with alcohol in the presence of a halogen-containing organic metal or the like. The above dialkoxymagnesium can be used alone or in combination of two or more. Furthermore, dialkoxymagnesium that is preferably used is in the form of granules or powder, and the shape thereof may be indefinite or spherical. For example, when spherical dialkoxymagnesium is used, a polymer powder having a better particle shape and a narrow particle size distribution is obtained, and the handling operability of the produced polymer powder during the polymerization operation is improved. Problems such as filter clogging in the polymer separation apparatus due to the fine powder contained are solved.

  The spherical dialkoxymagnesium does not necessarily need to be spherical, and may be oval or potato-shaped. Specifically, the shape of the particles is such that the ratio (L / W) of the major axis diameter L to the minor axis diameter W is 3 or less, preferably 1 to 2, more preferably 1 to 1.5. .

  The dialkoxymagnesium having an average particle size of 1 to 200 μm can be used. Preferably it is 5-150 micrometers. In the case of spherical dialkoxymagnesium, the average particle size is 1 to 100 μm, preferably 5 to 50 μm, and more preferably 10 to 40 μm. Moreover, about the particle size, it is preferable to use a thing with few fine powder and coarse powder and a narrow particle size distribution. Specifically, the particle size of 5 μm or less is 20% or less, preferably 10% or less. On the other hand, the particle size of 100 μm or more is 10% or less, preferably 5% or less. Further, when the particle size distribution is represented by D90 / D10 (where D90 is the integrated particle size at 90%, D10 is the integrated particle size at 10%), it is 3 or less, preferably 2 or less. .

  For example, JP-A-58-4132, JP-A-62-51633, JP-A-3-74341, JP-A-4-368391, JP-A-4-36891 can be used for producing spherical dialkoxymagnesium as described above. It is illustrated in the 8-73388 gazette etc.

The titanium compound (ii) used for the preparation of the solid component (a) has a general formula; Ti (OR ⁵ ) _n X _4-n (wherein R ⁵ represents an alkyl group having 1 to 4 carbon atoms, and X represents Represents a halogen atom, and n is an integer of 0 ≦ n ≦ 4.) One or more compounds selected from the group of tetravalent titanium halides or alkoxytitanium halides represented by the following formula:

  Specifically, titanium tetrachloride such as titanium tetrachloride, titanium tetrabromide and titanium tetraiodide is exemplified as the titanium halide, and methoxy titanium trichloride, ethoxy titanium trichloride, propoxy titanium trichloride, n- Butoxy titanium trichloride, dimethoxy titanium dichloride, diethoxy titanium dichloride, dipropoxy titanium dichloride, di-n-butoxy titanium dichloride, trimethoxy titanium chloride, triethoxy titanium chloride, tripropoxy titanium chloride, tri-n-butoxy titanium chloride, etc. Is exemplified. Of these, titanium tetrahalide is preferable, and titanium tetrachloride is particularly preferable. These titanium compounds can be used alone or in combination of two or more.

  The electron donating compound (iii) used for the preparation of the solid component (a) is an organic compound containing an oxygen atom or a nitrogen atom, such as alcohols, phenols, ethers, esters, ketones, acid halides. , Aldehydes, amines, amides, nitriles, isocyanates, organosilicon compounds containing Si—O—C bonds or Si—N—C bonds, and the like.

  Specifically, alcohols such as methanol, ethanol, n-propanol and 2-ethylhexanol, phenols such as phenol and cresol, methyl ether, ethyl ether, propyl ether, butyl ether, amyle ether, diphenyl ether, 9, Ethers such as 9-bis (methoxymethyl) fluorene, 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, methyl formate, ethyl acetate, vinyl acetate, propyl acetate, octyl acetate, cyclohexyl acetate, ethyl propionate, Monomers such as ethyl butyrate, ethyl benzoate, propyl benzoate, butyl benzoate, octyl benzoate, phenyl cyclohexylbenzoate, methyl p-toluate, ethyl p-toluate, methyl anisate, ethyl anisate Ethyl rubonates, diethyl malonate, dipropyl malonate, dibutyl malonate, diisobutyl malonate, dipentyl malonate, dineopentyl malonate, diethyl isopropyl bromomalonate, diethyl butyl bromomalonate, diethyl diisobutyl bromomalonate, diisopromalone Diethyl diethyl, diethyl dibutylmalonate, diethyl diisobutylmalonate, diethyl diisopentylmalonate, diethyl isopropylbutylmalonate, dimethyl isopropylisopentylmalonate, diethyl bis (3-chloro-n-propyl) malonate, bis (3 -Bromo-n-propyl) diethyl malonate, diethyl maleate, dibutyl maleate, dimethyl adipate, diethyl adipate, dipropyl adipate, dipropyl adipate, adip Dibutyl diacids, diisodecyl adipate, dioctyl adipate, diphthalic acid diesters, dicarboxylic acid diesters such as phthalic acid diester derivatives, ketones such as acetone, methyl ethyl ketone, methylbutyl ketone, acetophenone, benzophenone, phthalic acid dichloride, terephthalic acid dichloride, etc. Acid chlorides, aldehydes such as acetaldehyde, propionaldehyde, octyl aldehyde, benzaldehyde, amines such as methylamine, ethylamine, tributylamine, piperidine, aniline, pyridine, amides such as olefinic acid amide, stearic acid amide, Nitriles such as acetonitrile, benzonitrile and tolunitrile, isocyanates such as methyl isocyanate and ethyl isocyanate, phenyl alcohol Organosilicon compounds containing Si—O—C bonds such as silane, alkylalkoxysilane, phenylalkylalkoxysilane, cycloalkylalkoxysilane, cycloalkylalkylalkoxysilane, bis (alkylamino) dialkoxysilane, bis (cycloalkylamino) Examples thereof include organosilicon compounds containing a Si—N—C bond such as dialkoxysilane, alkyl (alkylamino) dialkoxysilane, dialkylaminotrialkoxysilane, and cycloalkylaminotrialkoxysilane.

  Among the above electron donating compounds, esters, particularly aromatic dicarboxylic acid diesters are preferably used, and phthalic acid diesters and phthalic acid diester derivatives are particularly preferable. Specific examples of these phthalic acid diesters include dimethyl phthalate, diethyl phthalate, di-n-propyl phthalate, di-isopropyl phthalate, di-n-butyl phthalate, diisobutyl phthalate, ethyl methyl phthalate, Methyl isopropyl phthalate, ethyl phthalate (n-propyl), ethyl phthalate (n-butyl), ethyl phthalate-isobutyl, di-n-pentyl phthalate, diisopentyl phthalate, dineopentyl phthalate, dihexyl phthalate, phthalate Di-n-heptyl phthalate, di-n-octyl phthalate, bis (2,2-dimethylhexyl) phthalate, bis (2-ethylhexyl) phthalate, di-n-nonyl phthalate, di-isodecyl phthalate, Bis (2,2-dimethylheptyl) phthalate, n-butyl-isohexyl phthalate, N-butyl tartrate (2-ethylhexyl), n-pentylhexyl phthalate, n-pentylisohexyl phthalate, isopentyl phthalate (heptyl), n-pentyl phthalate (2-ethylhexyl), n-pentyl phthalate Isononyl, isopentyl phthalate (n-decyl), n-pentyl undecyl phthalate, isopentyl isohexyl phthalate, n-hexyl phthalate (2,2-dimethylhexyl), n-hexyl isononyl phthalate, phthalic acid Examples include n-hexyl (n-decyl), n-heptyl phthalate (2-ethylhexyl), n-heptylisononyl phthalate, n-heptyl phthalate (neo-decyl), 2-ethylhexyl isononyl phthalate, One or more of these phthalic acid diesters are used.

  Further, as the phthalic acid diester derivative, one or two hydrogen atoms of the benzene ring to which the two ester groups of the above phthalic acid diester are bonded are an alkyl group having 1 to 5 carbon atoms, or a chlorine atom, bromine atom and fluorine. Examples thereof include those substituted with a halogen atom such as an atom. The solid catalyst component prepared by using the phthalic diester derivative as an electron donating compound can further improve the effect of hydrogen amount on the melt flow rate, that is, the hydrogen response, and the hydrogen added during polymerization is the same. Even when the amount is small or small, the melt flow rate of the polymer can be improved. Specifically, dineopentyl 4-methylphthalate, dineopentyl 4-ethylphthalate, 4,5, dineopentyl dimethylphthalate, dineopentyl 4,5-diethylphthalate, diethyl 4-chlorophthalate, di-n-chlorochlorophthalate Butyl, dineopentyl 4-chlorophthalate, diisobutyl 4-chlorophthalate, diisohexyl 4-chlorophthalate, diisooctyl 4-chlorophthalate, diethyl 4-bromophthalate, di-n-butyl 4-bromophthalate, dineopentyl 4-bromophthalate, 4- Diisobutyl bromophthalate, diisohexyl 4-bromophthalate, diisooctyl 4-bromophthalate, diethyl 4,5-dichlorophthalate, di-n-butyl 4,5-dichlorophthalate, diisohexyl 4,5-dichlorophthalate 4,5-dichloro phthalic acid diisooctyl, can be mentioned, of which 4-bromophthalic acid dineopentyl, 4-bromophthalic di -n- butyl, and 4-bromophthalic acid diisobutyl are preferred.

  In addition, it is also preferable to use the above-mentioned esters in combination of two or more. When the total carbon number of the alkyl group of the ester used is 4 or more compared to that of other esters, the esters are combined. Is desirable.

  In the present invention, a preferred embodiment is a method for preparing the solid component (a) by contacting the components (i), (ii), and (iii) in the presence of the aromatic hydrocarbon compound (iv). As this component (iv), specifically, an aromatic hydrocarbon compound having a boiling point of 50 to 150 ° C. such as toluene, xylene or ethylbenzene is preferably used. Moreover, these may be used independently or may be used in mixture of 2 or more types.

  As a particularly preferred method for preparing the solid component (a) in the present invention, a suspension is formed from the component (i), the component (iii), and the aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. The preparation method by making the mixed solution formed from (ii) and component (iv) contact this suspension, and making it react after that can be mentioned.

In the preparation of the solid component (a) of the present invention, it is preferable to use a polysiloxane (v) (hereinafter sometimes simply referred to as “component (v)”) in addition to the above components. By using it, the stereoregularity or crystallinity of the produced polymer can be improved, and further the fine powder of the produced polymer can be reduced. Polysiloxane is a polymer having a siloxane bond (—Si—O bond) in the main chain, but is also collectively referred to as silicone oil, and has a viscosity at 25 ° C. of 0.02 to 100 cm ² / s ( ^{2 to} 1000 centistokes). It is a liquid or viscous chain, partially hydrogenated, cyclic or modified polysiloxane at room temperature.

  As the chain polysiloxane, dimethylpolysiloxane and methylphenylpolysiloxane are used. As the partially hydrogenated polysiloxane, methylhydrogen polysiloxane having a hydrogenation rate of 10 to 80% is used. As the cyclic polysiloxane, hexamethylcyclotrimethyl is used. Siloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, 2,4,6-trimethylcyclotrisiloxane, 2,4,6,8-tetramethylcyclotetrasiloxane, and modified polysiloxanes include higher fatty acid groups. Examples thereof include substituted dimethylsiloxane, epoxy group-substituted dimethylsiloxane, and polyoxyalkylene group-substituted dimethylsiloxane. Among these, decamethylcyclopentasiloxane and dimethylpolysiloxane are preferable, and decamethylcyclopentasiloxane is particularly preferable.

  In the present invention, the above components (i), (ii), and (iii) and, if necessary, the component (iv) or the component (v) are contacted to form a solid component (a). A method for preparing the solid component (a) is described. Specifically, the magnesium compound (i) is suspended in a tetravalent titanium halogen compound (ii) or an aromatic hydrocarbon compound (iv), and an electron donating compound (iii) such as phthalic acid diester, and further necessary Depending on the method, a method of obtaining a solid component (a) by contacting a tetravalent titanium halogen compound (ii) can be mentioned. In this method, a spherical solid compound (a) having a sharp particle size distribution can be obtained by using a spherical magnesium compound, and without using a spherical magnesium compound, for example, a solution or By forming particles by the so-called spray-drying method in which the suspension is sprayed and dried, the solid component (a) having a spherical shape and a sharp particle size distribution can be obtained.

  The contact of each component is performed with stirring in a container equipped with a stirrer in a state where moisture and the like are removed under an inert gas atmosphere. The contact temperature is the temperature at the time of contact of each component at the time of contact of each component, and may be the same temperature as the reaction temperature or a different temperature. The contact temperature may be a relatively low temperature range around room temperature when the mixture is simply brought into contact with stirring and mixed, or is dispersed or suspended for modification, but the product is allowed to react after contact. When obtaining, the temperature range of 40-130 degreeC is preferable. If the temperature during the reaction is less than 40 ° C, the reaction does not proceed sufficiently, resulting in insufficient performance of the prepared solid catalyst component, and if it exceeds 130 ° C, evaporation of the solvent used becomes remarkable. Therefore, it becomes difficult to control the reaction. The reaction time is 1 minute or longer, preferably 10 minutes or longer, more preferably 30 minutes or longer.

  As a preferred method for preparing the solid component (a) of the present invention, the component (i) is suspended in the component (iv), and then the component (ii) is contacted and then the component (iii) and the component (iv) are contacted. Or a method of preparing the solid component (a) by reacting, or suspending the component (i) in the component (iv) and then contacting the component (iii) and then contacting the component (ii), The method of preparing a solid component (a) by making it react can be mentioned. Moreover, the performance of the final solid contact component is improved by bringing the component (ii) or the component (ii) and the component (iii) into contact with the solid component (a) thus prepared again or a plurality of times. be able to. At this time, it is desirable to carry out in the presence of the aromatic hydrocarbon compound (iv).

  As a preferred method for preparing the solid component (a) in the present invention, a suspension is formed from the component (i), the component (iii), and the aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. The preparation method by making the mixed solution formed from ii) and component (iv) contact this suspension, and making it react after that can be mentioned.

  Preferred methods for preparing the solid component (a) in the present invention include the methods shown below. A suspension is formed from the component (i), the component (iii), and the aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. A mixed solution is formed from the component (iii) and the aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C., and the suspension is added to the mixed solution. Then, the obtained mixed solution is heated and subjected to a reaction treatment (first reaction treatment). After completion of the reaction, the obtained solid substance is washed with a liquid hydrocarbon compound at room temperature, and the solid substance after washing is used as a solid product. Thereafter, the washed solid material is further brought into contact with component (ii) and an aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. at −20 to 100 ° C., and the temperature is raised. It is also possible to obtain a solid component (a) obtained by repeating a reaction treatment (secondary reaction treatment) and washing with a liquid hydrocarbon compound at room temperature after completion of the reaction 1 to 10 times.

  As a more preferable preparation method of the solid component (a) in the present invention, a suspension is formed from the component (i) and the component (iv), and the component (ii) and the component (iv) And a mixed solution formed from (1) and (2), and the component (iii) is added to the resulting mixed solution, the temperature is raised, and the reaction treatment (1) is performed to obtain the solid component (a). The solid product obtained after the reaction treatment (1) is washed with the aromatic hydrocarbon compound used as component (iv), and is further brought into contact with the mixed solution formed from component (ii) and component (iv). More preferably, the temperature is raised and the reaction treatment (2) is performed to obtain the solid component (a).

  Based on the above, as a particularly preferred method for preparing the solid component (a) in the present invention, dialkoxymagnesium (i) is suspended in an aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. After the liquid is brought into contact with a mixed solution of a tetravalent titanium halogen compound (ii) and an aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C., a reaction treatment is performed. At this time, before or after contacting the mixed solution of the tetravalent titanium halogen compound (ii) and the aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C. with the suspension, electrons such as phthalic acid diester One or more donor compounds (iii) are contacted at −20 to 130 ° C., and if necessary, the component (v) is contacted to carry out the first reaction treatment, and the solid product (1) Get. At this time, it is desirable to perform the aging reaction at a low temperature before or after contacting one or more of the electron donating compounds. The solid product (1) is washed (intermediate washing) with a hydrocarbon compound that is liquid at room temperature, preferably an aromatic hydrocarbon compound (iv) having a boiling point of 50 to 150 ° C., and then again a tetravalent titanium halogen compound (ii). Is contacted at −20 to 100 ° C. in the presence of an aromatic hydrocarbon compound, and a second reaction treatment is performed to obtain a solid product (2). If necessary, the intermediate cleaning and the second reaction treatment may be repeated a plurality of times. Next, the solid product (2) is washed with a hydrocarbon compound which is liquid at room temperature by decantation to obtain a solid component (a).

  The ratio of the amount of each component used in preparing the solid component (a) varies depending on the preparation method, and thus cannot be determined unconditionally. For example, a tetravalent titanium halogen compound (ii) is present per 1 mol of the magnesium compound (i). 0.5 to 100 mol, preferably 0.5 to 50 mol, more preferably 1 to 10 mol, and the electron donating compound (iii) is 0.01 to 10 mol, preferably 0.01 to 1 mol, More preferably, it is 0.02 to 0.6 mol, and the aromatic hydrocarbon compound (iv) is 0.001 to 500 mol, preferably 0.001 to 100 mol, more preferably 0.005 to 10 mol. The polysiloxane (v) is 0.01 to 100 g, preferably 0.05 to 80 g, more preferably 1 to 50 g.

  Further, the content of titanium, magnesium, halogen, and electron donating compound in the solid component (a) in the present invention is not particularly defined, but preferably titanium is 1.0 to 8.0% by weight, preferably 2.0. -8.0 wt%, more preferably 3.0-8.0 wt% magnesium is 10-70 wt%, more preferably 10-50 wt%, particularly preferably 15-40 wt%, still more preferably 15- 25 wt%, halogen is 20 to 90 wt%, more preferably 30 to 85 wt%, particularly preferably 40 to 80 wt%, still more preferably 45 to 75 wt%, and the total amount of electron donating compounds is 0.5 to 30% by weight, more preferably 1 to 25% by weight in total, and particularly preferably 2 to 20% by weight in total.

  The organosilicon compound (b) (hereinafter sometimes simply referred to as “component (b)”) constituting the solid catalyst component for olefin polymerization of the present invention may be a compound represented by the above general formula (1). Specific examples include, but are not limited to, alkyl alkoxy silane, alkyl (cycloalkyl) alkoxy silane, cycloalkyl alkoxy silane, phenyl alkoxy silane, alkyl (phenyl) alkoxy silane, alkyl (alkyl amino) alkoxy silane, alkyl amino alkoxy Examples thereof include silane, cycloalkyl (alkylamino) alkoxysilane, alkyl (cycloalkylamino) alkoxysilane, polycyclic aminoalkoxysilane, and alkyl (polycyclic amino) alkoxysilane.

In the general formula (1), R ¹ is preferably an alkyl group such as a methyl group, an ethyl group, an isopropyl group, an isobutyl group, or a t-butyl group, a cyclopentyl group, or a cyclohexyl group, and includes a secondary carbon or a tertiary carbon. It is more preferable that it is an alkyl group, and it is particularly preferable that the carbon directly bonded to Si is a secondary carbon or a tertiary carbon. R ² is preferably a methyl group or an ethyl group. Further, dialkoxysilane having p of 2 is preferable.

Specific examples of the organosilicon compound (b) include di-n-propyldimethoxysilane, diisopropyldimethoxysilane, di-n-butyldimethoxysilane, di-n-butyldiethoxysilane, and t-butyl (methyl). Dimethoxysilane, t-butyl (ethyl) dimethoxysilane, dicyclohexyldimethoxysilane, cyclohexyl (methyl) dimethoxysilane, dicyclopentyldimethoxysilane, cyclopentyl (methyl) diethoxysilane, cyclopentyl (ethyl) dimethoxysilane, cyclopentyl (cyclohexyl) dimethoxysilane, 3-methylcyclohexyl (cyclopentyl) dimethoxysilane, 4-methylcyclohexyl (cyclopentyl) dimethoxysilane, 3,5-dimethylcyclohexyl (cyclopentyl) Dimethoxysilane, bis (diethylamino) dimethoxysilane, bis (di-n-propylamino) dimethoxysilane, bis (di-n-butylamino) dimethoxysilane, bis (di-t-butylamino) dimethoxysilane, bis (dicyclopentyl) Amino) dimethoxysilane, bis (dicyclohexylamino) dimethoxysilane, bis (di-2-methylcyclohexylamino) dimethoxysilane, bis (isoquinolino) dimethoxysilane, bis (quinolino) dimethoxysilane, bis (ethyl-n-propylamino) dimethoxy Silane, bis (ethylisopropylamino) dimethoxysilane, bis (ethyl-n-butylamino) dimethoxysilane, bis (ethylisobutylamino) dimethoxysilane, bis (ethyl-t-butylamino) dimeth Sisilane, bis (isobutyl-n-propylamino) dimethoxysilane, bis (ethylcyclopentylamino) dimethoxysilane, bis (ethylcyclohexylamino) dimethoxysilane, ethyl (diethylamino) dimethoxysilane, n-propyl (diisopropylamino) dimethoxysilane, isopropyl (Di-t-butylamino) dimethoxysilane, cyclohexyl (diethylamino) dimethoxysilane, ethyl (di-t-butylamino) dimethoxysilane, ethyl (isoquinolino) dimethoxysilane, n-propyl (isoquinolino) dimethoxysilane, isopropyl (isoquinolino) Dimethoxysilane, n-butyl (isoquinolino) dimethoxysilane, ethyl (quinolino) dimethoxysilane, n-propyl (quinolino) dimethoxysila , Isopropyl (quinolino) dimethoxysilane, n-butyl (quinolino) dimethoxysilane, bis (diethylamino) diethoxysilane, bis (di-n-propylamino) diethoxysilane, bis (di-n-butylamino) diethoxysilane Bis (di-t-butylamino) diethoxysilane, bis (dicyclopentylamino) diethoxysilane, bis (dicyclohexylamino) diethoxysilane, bis (di-2-methylcyclohexylamino) diethoxysilane, bis (diisoquinolino) ) Diethoxysilane, bis (diquinolino) diethoxysilane, bis (ethyl-n-propylamino) diethoxysilane, bis (ethylisopropylamino) diethoxysilane, bis (ethyl-n-butylamino) diethoxysilane, bis (Ethyl-iso Tilamino) diethoxysilane, bis (ethyl-t-butylamino) diethoxysilane, bis (isobutyl-n-propylamino) diethoxysilane, bis (ethylcyclopentylamino) diethoxysilane, bis (ethylcyclohexylamino) diethoxy Silane, n-propyl (diisopropylamino) diethoxysilane, ethyl (isoquinolino) diethoxysilane, n-propyl (isoquinolino) diethoxysilane, isopropyl (isoquinolino) diethoxysilane, n-butyl (isoquinolino) diethoxysilane, ethyl (Quinolino) diethoxysilane, n-propyl (quinolino) diethoxysilane, isopropyl (quinolino) diethoxysilane, n-butyl (quinolino) diethoxysilane, texyltrimethoxysilane, diethyla Minotrimethoxysilane, di-n-propylaminotrimethoxysilane, di-n-butylaminotrimethoxysilane, di-t-butylaminotrimethoxysilane, dicyclopentylaminotrimethoxysilane, dicyclohexylaminotrimethoxysilane, di- 2-methylcyclohexylaminotrimethoxysilane, isoquinolinotrimethoxysilane, quinolinotrimethoxysilane, diethylaminotriethoxysilane, di-n-propylaminotriethoxysilane, di-n-butylaminotriethoxysilane, ethyl-t -Butylaminotriethoxysilane, ethyl-sec-butylaminotriethoxysilane, dicyclopentylaminotriethoxysilane, dicyclohexylaminotriethoxysilane, di-2-methylcyclohexylaminoto Liethoxysilane, isoquinolinotriethoxysilane, quinolinotriethoxysilane, bis (t-butylamino) dimethoxysilane, bis (cyclohexylamino) dimethoxysilane, bis (t-butylamino) diethoxysilane, bis (cyclohexylamino) ) Diethoxysilane, methyl (isopropylamino) dimethoxysilane, ethyl (isopropylamino) dimethoxysilane, n-propyl (isopropylamino) dimethoxysilane, isopropyl (isopropylamino) dimethoxysilane, sec-butyl (isopropylamino) dimethoxysilane, t -Butyl (isopropylamino) dimethoxysilane, cyclopentyl (isopropylamino) dimethoxysilane, cyclohexyl (isopropylamino) dimethoxysilane, 2-methyl Cyclohexyl (isopropylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (isopropylamino) dimethoxysilane, methyl (n-butylamino) dimethoxysilane, ethyl (n-butylamino) dimethoxysilane, n-propyl (n-butylamino) Dimethoxysilane, isopropyl (n-butylamino) dimethoxysilane, Sec-butyl (n-butylamino) dimethoxysilane, t-butyl (n-butylamino) dimethoxysilane, cyclopentyl (n-butylamino) dimethoxysilane, cyclohexyl (n -Butylamino) dimethoxysilane, 2-methylcyclohexyl (n-butylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (n-butylamino) dimethoxysilane, methyl (sec-butylamino) ) Dimethoxysilane, ethyl (sec-butylamino) dimethoxysilane, n-propyl (sec-butylamino) dimethoxysilane, isopropyl (sec-butylamino) dimethoxysilane, t-butyl (sec-butylamino) dimethoxysilane, cyclopentyl ( sec-Butylamino) dimethoxysilane, 2-methylcyclopentyl (sec-butylamino) dimethoxysilane, cyclohexyl (sec-butylamino) dimethoxysilane, 2-methylcyclohexyl (sec-butylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (Sec-butylamino) dimethoxysilane, methyl (t-butylamino) dimethoxysilane, ethyl (t-butylamino) dimethoxysilane, n-propyl (t-butylamino) dimethoxysilane, isopropyl (t-butyl) Tilamino) dimethoxysilane, n-butyl (t-butylamino) dimethoxysilane, sec-butyl (t-butylamino) dimethoxysilane, t-butyl (t-butylamino) dimethoxysilane, cyclopentyl (t-butylamino) dimethoxysilane , Cyclohexyl (t-butylamino) dimethoxysilane, 2-methylcyclohexyl (t-butylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (t-butylamino) dimethoxysilane, methyl (cyclopentylamino) dimethoxysilane, ethyl (cyclopentyl) Amino) dimethoxysilane, n-propyl (cyclopentylamino) dimethoxysilane, isopropyl (cyclopentylamino) dimethoxysilane, sec-butyl (cyclopentylamino) dimethoxysilane, t Butyl (cyclopentylamino) dimethoxysilane, cyclopentyl (cyclopentylamino) dimethoxysilane, cyclohexyl (cyclopentylamino) dimethoxysilane, 2-methylcyclohexyl (cyclopentylamino) dimethoxysilane, methyl (cyclohexylamino) dimethoxysilane, ethyl (cyclohexylamino) dimethoxysilane N-propyl (cyclohexylamino) dimethoxysilane, isopropyl (cyclohexylamino) dimethoxysilane, sec-butyl (cyclohexylamino) dimethoxysilane, t-butyl (cyclohexylamino) dimethoxysilane, cyclopentyl (cyclohexylamino) dimethoxysilane, cyclohexyl (cyclohexyl) Amino) dimethoxysilane, 2-methylcyclohexane Sil (cyclohexylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (cyclohexylamino) dimethoxysilane, methyl (2-methylcyclohexylamino) dimethoxysilane, ethyl (2-methylcyclohexylamino) dimethoxysilane, n-propyl (2-methyl) Cyclohexylamino) dimethoxysilane, isopropyl (2-methylcyclohexylamino) dimethoxysilane, sec-butyl (2-methylcyclohexylamino) dimethoxysilane, t-butyl (2-methylcyclohexylamino) dimethoxysilane, cyclopentyl (2-methylcyclohexylamino) ) Dimethoxysilane, 2-methylcyclopentyl (2-methylcyclohexylamino) dimethoxysilane, cyclohexyl (2-methylcyclohexyl) Ruamino) dimethoxysilane, 2-methylcyclohexyl (2-methylcyclohexylamino) dimethoxysilane, 2,6-dimethylcyclohexyl (2-methylcyclohexylamino) dimethoxysilane, methyl (isopropylamino) diethoxysilane, ethyl (isopropylamino) di Ethoxysilane, n-propyl (isopropylamino) diethoxysilane, isopropyl (isopropylamino) diethoxysilane, sec-butyl (isopropylamino) diethoxysilane, t-butyl (isopropylamino) diethoxysilane, cyclopentyl (isopropylamino) Diethoxysilane, cyclohexyl (isopropylamino) diethoxysilane, 2-methylcyclohexyl (isopropylamino) diethoxysilane, 2,6-dimethyl Lucyclohexyl (isopropylamino) diethoxysilane, methyl (n-butylamino) diethoxysilane, ethyl (n-butylamino) ditooxysilane, n-propyl (n-butylamino) diethoxysilane, isopropyl (n-butylamino) Diethoxysilane, sec-butyl (n-butylamino) diethoxysilane, t-butyl (n-butylamino) ditooxysilane, cyclopentyl (n-butylamino) diethoxysilane, cyclohexyl (n-butylamino) diethoxysilane, 2-methylcyclohexyl (n-butylamino) diethoxysilane, 2,6-dimethylcyclohexyl (n-butylamino) diethoxysilane, methyl (n-butylamino) diethoxysilane, methyl (sec-butylamino) diethoxy Silane, D (Sec-butylamino) diethoxysilane, n-propyl (sec-butylamino) diethoxysilane, isopropyl (sec-butylamino) diethoxysilane, cyclopentyl (sec-butylamino) diethoxysilane, cyclohexyl (sec- Butylamino) diethoxysilane, 2-methylcyclohexyl (sec-butylamino) diethoxysilane, 2,6-dimethylcyclohexyl (sec-butylamino) diethoxysilane, methyl (t-butylamino) diethoxysilane, ethyl ( t-butylamino) diethoxysilane, n-propyl (t-butylamino) diethoxysilane, isopropyl (t-butylamino) diethoxysilane, n-butyl (t-butylamino) diethoxysilane, sec-butyl ( t-butylamino) diethoxysilane, t-butyl Ru (t-butylamino) diethoxysilane, cyclopentyl (t-butylamino) diethoxysilane, cyclohexyl (t-butylamino) diethoxysilane, 2-methylcyclohexyl (t-butylamino) diethoxysilane, 2,

6-dimethylcyclohexyl (t-butylamino) diethoxysilane, methyl (cyclopentylamino) diethoxysilane, ethyl (cyclopentylamino) diethoxysilane, n-propyl (cyclopentylamino) diethoxysilane, isopropyl (cyclopentylamino) diethoxy Silane, sec-butyl (cyclopentylamino) diethoxysilane, t-butyl (cyclopentylamino) diethoxysilane, cyclopentyl (cyclopentylamino) diethoxysilane, cyclohexyl (cyclopentylamino) diethoxysilane, 2-methylcyclohexyl (cyclopentylamino) Diethoxysilane, 2,6-dimethyl (cyclopentylamino) diethoxysilane, methyl (cyclohexylamino) diethoxysilane, ethyl Cyclohexylamino) diethoxysilane, n-propyl (cyclohexylamino) diethoxysilane, isopropyl (cyclohexylamino) diethoxysilane, sec-butyl (cyclohexylamino) diethoxysilane, t-butyl (cyclohexylamino) diethoxysilane, Cyclopentyl (cyclohexylamino) diethoxysilane, cyclohexyl (cyclohexylamino) diethoxysilane, 2-methylcyclohexyl (cyclohexylamino) diethoxysilane, 2,6-dimethyl (cyclohexylcyclohexylamino) diethoxysilane, methyl (2-methylcyclohexyl) Amino) diethoxysilane, ethyl (2-methylcyclohexylamino) diethoxysilane, n-propyl (2-methylcyclohexylamino) die Xysilane, isopropyl (2-methylcyclohexylamino) diethoxysilane, sec-butyl (2-methylcyclohexylamino) diethoxysilane, t-butyl (2-methylcyclohexylamino) diethoxysilane, cyclopentyl (2-methylcyclohexylamino) Diethoxysilane, cyclohexyl (2-methylcyclohexylamino) diethoxysilane, 2-methylcyclohexyl (2-methylcyclohexylamino) diethoxysilane, 2,6-dimethyl (2-methylcyclohexylcyclohexylamino) diethoxysilane, methyl ( Isopropylamino) di-n-propoxysilane, ethyl (isopropylamino) di-n-propoxysilane, n-propyl (isopropylamino) di-n-propoxysilane, isoprop Pyr (isopropylamino) di-n-propoxysilane, sec-butyl (isopropylamino) di-n-propoxysilane, t-butyl (isopropylamino) di-n-propoxysilane, cyclopentyl (isopropylamino) di-n-propoxy Silane, cyclohexyl (isopropylamino) di-n-propoxysilane, 2-methylcyclohexyl (isopropylamino) di-n-propoxysilane, 2,6-dimethylcyclohexyl (isopropylamino) di-n-propoxysilane, methyl (n- Butylamino) di-n-propoxysilane, ethyl (n-butylamino) di-n-propoxysilane, n-propyl (n-butylamino) di-n-propoxysilane, isopropyl (n-butylamino) di-n -Propoxysilane, sec- Til (n-butylamino) di-n-propoxysilane, t-butyl (n-butylamino) di-n-propoxysilane, cyclopentyl (n-butylamino) di-n-propoxysilane, cyclohexyl (n-butylamino) ) Di-n-propoxysilane, 2-methylcyclohexyl (n-butylamino) di-n-propoxysilane, 2,6-dimethylcyclohexyl (n-butylamino) di-n-propoxysilane, methyl (sec-butylamino) ) Di-n-propoxysilane, ethyl (sec-butylamino) di-n-propoxysilane, n-propyl (sec-butylamino) di-n-propoxysilane, isopropyl (sec-butylamino) di-n-propoxy Silane, sec-butyl (sec-butylamino) di-n-propoxysilane, t-butyl (sec- Tilamino) di-n-propoxysilane, cyclopentyl (sec-butylamino) di-n-propoxysilane, cyclohexyl (sec-butylamino) di-n-propoxysilane, 2-methylcyclohexyl (sec-butylamino) di-n -Propoxysilane, 2,6-dimethylcyclohexyl (sec-butylamino) di-n-propoxysilane, methyl (t-butylamino) di-n-propoxysilane, ethyl (t-butylamino) di-n-propoxysilane , N-propyl (t-butylamino) di-n-propoxysilane, isopropyl (t-butylamino) di-n-propoxysilane, n-butyl (t-butylamino) di-n-propoxysilane, sec-butyl (T-Butylamino) di-n-propoxysilane, t-butyl (t-butylamino) Di-n-propoxysilane, cyclopentyl (t-butylamino) di-n-propoxysilane, cyclohexyl (t-butylamino) di-n-propoxysilane, 2-methylcyclohexyl (t-butylamino) di-n-propoxy Silane, 2,6-dimethylcyclohexyl (t-butylamino) di-n-propoxysilane, methyl (cyclopentylamino) di-n-propoxysilane, ethyl (cyclopentylamino) di-n-propoxysilane, n-propyl (cyclopentyl) Amino) di-n-propoxysilane, isopropyl (cyclopentylamino) di-n-propoxysilane, sec-butyl (cyclopentylamino) di-n-propoxysilane, t-butyl (cyclopentylamino) di-n-propoxysilane, cyclopentyl (Sh Lopentylamino) di-n-propoxysilane, cyclohexyl (cyclopentylamino) di-n-propoxysilane, 2-methylcyclohexyl (cyclopentylamino) di-n-propoxysilane, 2,6-dimethyl (cyclopentylamino) di-n -Propoxysilane, methyl (cyclohexylamino) di-n-propoxysilane, ethyl (cyclohexylamino) di-n-propoxysilane, n-propyl (cyclohexylamino) di-n-propoxysilane, isopropyl (cyclohexylamino) di-n -Propoxysilane, sec-butyl (cyclohexylamino) di-n-propoxysilane, t-butyl (cyclohexylamino) di-n-propoxysilane, cyclopentyl (cyclohexylamino) di-n-propoxysila Cyclohexyl (cyclohexylamino) di-n-propoxysilane, 2-methylcyclohexyl (cyclohexylamino) di-n-propoxysilane, 2,6-dimethyl (cyclohexylcyclohexylamino) di-n-propoxysilane, methyl (2-methyl) Cyclohexylamino) di-n-propoxysilane, ethyl (2-methylcyclohexylamino) di-n-propoxysilane, n-propyl (2-methylcyclohexylamino) di-n-propoxysilane, isopropyl (2-methylcyclohexylamino) Di-n-propoxysilane, sec-butyl (2-methylcyclohexylamino) di-n-propoxysilane, t-butyl (2-methylcyclohexylamino) di-n-propoxysilane, cyclopentyl (2-methylcyclone) Rohexylamino) di-n-propoxysilane, 2-methylcyclopentyl (2-methylcyclohexylamino) di-n-propoxysilane, cyclohexyl (2-methylcyclohexylamino) di-n-propoxysilane, 2-methylcyclohexyl (2 -Methylcyclohexylamino) di-n-propoxysilane, 2,6-dimethyl (2-methylcyclohexylcyclohexylamino) di-n-propoxysilane, decahydronaphthyl (2-methylcyclohexylamino) di-n-propoxysilane, , 2,3,4-tetrahydronaphthyl (2-methylcyclohexylamino) diethoxysilane, among which t-butyl (methyl) dimethoxysilane, t-butyl (ethyl) dimethoxysilane, dicyclohexyl Sill dimethoxysilane, cyclohexyl (methyl) dimethoxysilane, dicyclopentyldimethoxysilane are preferably used. The organosilicon compound (b) can be used alone or in combination of two or more.

The organosilicon compound (c) constituting the solid catalyst component for olefin polymerization of the present invention (hereinafter sometimes simply referred to as “component (c)”) may be a compound represented by the above general formula (2). The alkenyl group-containing alkyl silane, alkenyl group-containing cycloalkyl silane, alkenyl group-containing phenyl silane, alkenyl group-containing vinyl silane, alkenyl group-containing alkyl halogenated silane, alkenyl group-containing halogenated silane is there. Here, the alkenyl group is a CH ₂ ═CH— (CH ₂ ) _n — group. In the above general formula (2), R ³ is preferably a methyl group, an ethyl group, a vinyl group or a chlorine atom, q is preferably a dialkenyl silane or a trialkenyl silane having 2 or 3, and n is an allyl silane having a value of 1 or n. 2, 3-butenylsilane is preferred, and diallyldialkylsilane is particularly preferred.

  Specific examples of the organosilicon compound (c) include allyltriethylsilane, allyltrivinylsilane, allylmethyldivinylsilane, allyldimethylvinylsilane, allylmethyldichlorosilane, allyltrichlorosilane, allyltribromosilane, diallyldimethylsilane, Diallyldiethylsilane, diallyldivinylsilane, diallylmethylvinylsilane, diallylmethylchlorosilane, diallyldichlorosilane, diallyldibromosilane, triallylmethylsilane, triallylethylsilane, triallylvinylsilane, triallylchlorosilane, triallylbromosilane, tetraallylsilane, Di-3-butenylsilane dimethylsilane, di-3-butenylsilane diethylsilane, di-3-butenylsilane divinylsilane, di-3 Butenylsilane methylvinylsilane, di-3-butenylsilane methylchlorosilane, di-3-butenylsilane dichlorosilane, diallyldibromosilane, triallylmethylsilane, tri-3-butenylsilane ethylsilane, tri-3 -Butenylsilane vinylsilane, tri-3-butenylsilane chlorosilane, tri-3-butenylsilane bromosilane, tetra-3-butenylsilane silane are preferably used, and among these, allyldimethylvinylsilane, diallyldimethylsilane, Triallylmethylsilane, di-3-butenylsilane dimethylsilane, diallyldichlorosilane, and allyltriethylsilane are preferred. The organosilicon compound (c) can be used alone or in combination of two or more.

The organoaluminum compound (d) (hereinafter sometimes simply referred to as “component (d)”) used in forming the olefin polymerization catalyst of the present invention is a compound represented by the above general formula (3). As long as R ⁴ is not particularly limited, R ⁴ is preferably an ethyl group or an isobutyl group, Q is preferably a hydrogen atom, a chlorine atom or a bromine atom, and r is preferably 2 or 3, and particularly preferably 3. Specific examples of such an organoaluminum compound (d) include triethylaluminum, diethylaluminum chloride, triisobutylaluminum, diethylaluminum bromide and diethylaluminum hydride, and one or more can be used. Triethylaluminum and triisobutylaluminum are preferable.

(Preparation method of solid catalyst component (A))
The solid catalyst component (A) of the present invention is obtained by bringing the component (b), the component (c) and the component (d) into contact with the solid component (a).
The contact of components (a), (b), (c) and (d) is carried out in the presence of an inert solvent in consideration of ease of operation. As the inert solvent, aliphatic hydrocarbon compounds such as hexane, heptane, and cyclohexane, and aromatic hydrocarbon compounds such as benzene, toluene, xylene, and ethylbenzene are used. The contact order of the components is not particularly limited, but the contact order shown below is preferable.
Component (a) + Component (b) + Component (c) + Component (d)
Component (a) + Component (b) + Component (c) → Component (d)
Component (a) + component (b) → component (c) + component (d)
Component (a) + component (c) → component (b) + component (d)
Component (a) + component (d) → component (b) + component (c)
Component (a) → Component (b) + Component (c) (previously mixed) → Component (d)
Component (a) → Component (c) + Component (d) (previously mixed) → Component (b)

  Among the above contact sequences, a method is preferred in which the component (a) is first contacted with the component (b) or the component (c) and then the component (d) is contacted, the component (a) is contacted with the component (c), Next, a method in which the component (b) and the component (d) are contacted is more desirable. Alternatively, when the component (a) is first brought into contact with the component (d), it is brought into contact in the presence of the component (b) or the component (c). Moreover, after making each component contact as mentioned above, in order to remove an unnecessary component, it wash | cleans with inert solvents, such as a heptane. In particular, if the component (d) remains in the solid catalyst component, it causes deterioration with the passage of time such as a decrease in catalyst activity. Further, after contacting component (b), component (c) and component (d) with component (a) as described above, component (b), component (c) and component (d) are repeated once again. Or it can also be made to contact twice or more. Further, when contacting the organosilicon compound (b), the organosilicon compound (c) and the organoaluminum compound (d) with the solid component (a), contacting the polysiloxane (e) It is preferable because the molecular weight distribution of the polymer can be broadened and the stereoregularity or crystallinity can be improved, and the fine powder of the produced polymer can be reduced. As polysiloxane (e), the thing similar to polysiloxane (v) used when preparing solid component (a) can be mentioned.

  In the preparation of the solid catalyst component, the preferred combinations of components (b) and (c) are shown in Table 1 below.

  The ratio of the amount used when contacting each component is arbitrary as long as it does not affect the effect of the present invention, and is not particularly limited. However, the component (b) and the component (c) are usually the components ( It is used in the range of 0.5 to 10 mol, preferably 1 to 5 mol, per mol of titanium atom in a). Component (d) is used in the range of 1 to 15 mol, preferably 3 to 10 mol, particularly preferably 4 to 7 mol, per mol of titanium atom in component (a).

  The temperature at which the above components are brought into contact is −10 to 100 ° C., preferably 0 to 80 ° C., particularly preferably 25 to 75 ° C. The contact time is 1 minute to 10 hours, preferably 10 minutes to 5 hours, particularly preferably 30 minutes to 2 hours. In particular, the component (c) may be polymerized to form a polymer depending on the conditions for contacting the component (c). When the contact temperature is 30 ° C. or higher, the polymerization of the component (c) starts and a part or the whole becomes a polymer, and the resulting olefin polymers have improved crystallinity and catalytic activity.

  The solid catalyst component (A) obtained as described above contains magnesium, titanium, halogen, component (b) and component (c) or a polymer thereof, and the content of each component is 10 for magnesium. -70 wt%, preferably 10-50 wt%, titanium 1.0-8.0 wt%, preferably 2.0-8.0 wt%, halogen 20-90 wt%, preferably 30-85 %, Component (b) is 1.0 to 50% by weight, preferably 1.0 to 30% by weight, component (c) or a polymer thereof is 1.0 to 50% by weight, preferably 1.0 to 30%. % By weight.

  As the organoaluminum compound (B) (hereinafter sometimes simply referred to as “component (B)”) used in forming the olefin polymerization catalyst of the present invention, the same organoaluminum compound as the aforementioned component (d) is used. Preferably used are triethylaluminum and triisobutylaluminum.

  In forming the olefin polymerization catalyst of the present invention, in addition to the component (A) and the component (B), an organosilicon compound (C) (hereinafter sometimes referred to as “component (C)”) may be used. it can. This component (C) can maintain high activity and high stereoregularity without being used to form a catalyst for olefin polymerization. When used in combination with component (A) and component (B), higher catalyst activity and stereoregulation Sex can be expressed. As the component (C), the same compound as the component (b) described above can be used, preferably ethyl (t-butylamino) dimethoxysilane, ethyl (t-butylamino) diethoxysilane, di-n-propyldimethoxy. Examples include silane, diisopropyldimethoxysilane, dicyclopentyldimethoxysilane, dicyclohexyldimethoxysilane, cyclohexylmethyldimethoxysilane, and cyclopentylcyclohexyldimethoxysilane.

  In the presence of the olefin polymerization catalyst of the present invention, homopolymerization, random copolymerization or block copolymerization of olefins is carried out. Examples of olefin monomers used for polymerization include ethylene, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, vinylcyclohexane, and the like. These monomers are used alone or in combination of two or more. Can be used together. In particular, ethylene, propylene, and 1-butene are preferably used. Particularly preferred is propylene. In the case of propylene, copolymerization with one or more other olefin monomers can be preferably performed. Examples of olefin monomers to be copolymerized include ethylene, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, vinylcyclohexane, and the like. Alternatively, two or more can be used in combination. In particular, ethylene and 1-butene are preferably used. Copolymerization of propylene with other olefin monomers includes random copolymerization in one stage using propylene and a small amount of ethylene as a comonomer, and homopolymerization of propylene in the first stage (first polymerization tank). A typical example is so-called propylene-ethylene block copolymerization, in which propylene and ethylene are copolymerized in a second stage (second polymerization tank) or more stages (multistage polymerization tank). Also in such random copolymerization and block copolymerization, the catalyst of the present invention comprising the above component (A) and component (B) or component (C) is effective, and has catalytic activity, stereoregularity and / or Not only is the hydrogen response good, but the copolymerization properties and the properties of the resulting copolymer are also good. In particular, in random copolymerization of propylene and ethylene, a copolymer having an ethylene content of 5 to 10% by weight and a high ethylene content and good randomness can be obtained. Furthermore, in the propylene-ethylene block copolymer described above, a copolymer having a high rubber content can be obtained. In particular, when shifting from homopolymerization of propylene to block copolymerization, alcohols can be added to the polymerization system in order to prevent gel formation in the final product. Specific examples of alcohols include ethyl alcohol, isopropyl alcohol and the like, and the amount used is 0.01 to 10 mol, preferably 0.1 to 2 mol, per 1 mol of component (B).

  The amount of each component used is arbitrary as long as it does not affect the effect of the present invention, and is not particularly limited. Usually, component (B) is used per 1 mole of titanium atom in component (A). , 1 to 2000 mol, preferably 50 to 1000 mol. Component (C) is used in an amount of 0.002 to 10 mol, preferably 0.01 to 2 mol, particularly preferably 0.1 to 0.5 mol, per mol of component (B).

  The order of contacting the components is arbitrary, but it is desirable to first introduce the organoaluminum compound (B) into the polymerization system and contact the solid catalyst component (A). When component (C) is used, the organoaluminum compound (B) is first charged into the polymerization system, then component (C) is charged, and then the solid catalyst component (A) is contacted.

  The polymerization method in the present invention can be carried out in the presence or absence of an organic solvent, and an olefin monomer such as propylene can be used for polymerization in any state of gas and liquid. The polymerization temperature is 200 ° C. or lower, preferably 100 ° C. or lower, and the polymerization pressure is 10 MPa or lower, preferably 6 MPa or lower. In addition, either a continuous polymerization method or a batch polymerization method is possible. Furthermore, the polymerization reaction may be performed in one stage, or may be performed in two or more stages.

  Furthermore, in polymerizing olefins using the catalyst formed from component (A) and component (B) or component (C) in the present invention (also referred to as “main polymerization”), catalytic activity, stereoregularity and In order to further improve the particle properties and the like to be generated, it is desirable to perform preliminary polymerization prior to the main polymerization. In the preliminary polymerization, monomers similar to the main polymerization such as olefins or styrene can be used. Specifically, component (A) and component (B), or component (C) are contacted in the presence of olefins, and 0.1 to 100 g of polyolefin per 1 g of component (A) is preliminarily polymerized, Further, component (B) and / or component (C) are contacted to form a catalyst.

  In carrying out the prepolymerization, the order of contacting the components and the monomers is arbitrary, but preferably, the component (B) is first placed in a prepolymerization system set to an inert gas atmosphere or a gas atmosphere for carrying out polymerization such as propylene. Then, after contacting component (A), an olefin such as propylene and / or one or more other olefins are contacted. The prepolymerization temperature is arbitrary and is not particularly limited, but is preferably in the range of -10 ° C to 70 ° C, more preferably in the range of 0 ° C to 50 ° C.

  When olefins are polymerized in the presence of the olefin polymerization catalyst of the present invention, high stereoregularity is maintained and hydrogen response is improved as compared with the case where a conventional catalyst is used.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. However, this is merely an example and does not limit the present invention.

<Preparation of solid component>
A 2000-ml round bottom flask equipped with a stirrer and sufficiently substituted with nitrogen gas was charged with 150 g of diethoxymagnesium and 750 ml of toluene to form a suspension. The suspension was then added to a solution of 450 ml of toluene and 300 ml of titanium tetrachloride, pre-charged in a 2000 ml round bottom flask equipped with a stirrer and thoroughly substituted with nitrogen gas. The suspension was then reacted at 5 ° C. for 1 hour. Thereafter, 22.5 ml of n-butyl phthalate was added, the temperature was raised to 100 ° C., and the first reaction treatment was performed for 2 hours with stirring. After completion of the reaction, the product was washed four times with 1300 ml of toluene at 80 ° C., and 1200 ml of toluene and 300 ml of titanium tetrachloride were newly added, followed by a second reaction treatment at 110 ° C. for 2 hours with stirring. The intermediate wash and the second reaction treatment were repeated once more. The product was then washed 7 times with 1300 ml of 40 ° C. heptane, filtered and dried to obtain a powdery solid component. The titanium content in the solid component was measured and found to be 2.9% by weight.

<Preparation of solid catalyst component>
30 g of the solid component obtained above was suspended in 100 ml of heptane, and 27 mmol of diallyldimethylsilane was charged into this suspension and reacted at 70 ° C. for 2 hours. After completion of the reaction, the reaction solution was cooled to 30 ° C., 27 mmol of t-butylethyldimethoxysilane and 90 mmol of triethylaluminum diluted in heptane were added, and contacted at 30 ° C. with stirring for 2 hours. The product was then washed seven times with 100 ml of 30 ° C. heptane to obtain a solid catalyst component. When this solid catalyst component was analyzed, titanium was 2.4% by weight and silane was 3.0% by weight.

<Formation and polymerization of polymerization catalyst>
A polymerization catalyst was formed by charging 1.32 mmol of triethylaluminum and 0.0026 mmol of the solid catalyst component as titanium atoms into an autoclave with a stirrer having an internal volume of 2.0 liters completely substituted with nitrogen gas. Thereafter, 4 liters of hydrogen gas and 1.4 liters of liquefied propylene were charged, preliminarily polymerized at 20 ° C. for 5 minutes, then heated up, and polymerized at 70 ° C. for 1 hour. About the obtained polymer, catalyst activity, boiling heptane insoluble matter (HI, wt%), melt flow rate (MI, g-PP / 10 min), xylene soluble component amount at 23 ° C. (XS, wt%) Was measured. The results are shown in Table 2.

  The catalytic activity indicating the amount of polymer produced (F) g per hour of the polymerization time per 1 g of the solid catalyst component was calculated by the following equation.

  Catalytic activity = product polymer (F) g / solid catalyst component g / 1 hour

Further, after the polymer was continuously extracted with boiling n-heptane for 6 hours, the polymer (G) insoluble in n-heptane was dried and weighed, and the insoluble content of boiling heptane in the polymer (HI, % By weight) was calculated from the following formula.
HI (% by weight) = (G) g / (F) g × 100

The xylene-soluble component (XS: wt%) of the polymer was measured by the following method.
Method for measuring xylene-soluble component: 4.0 g of a polymer was charged into 200 ml of para-xylene, and the polymer was dissolved under the boiling point of toluene (138 ° C.) over 2 hours. Thereafter, the mixture was cooled to 23 ° C., and the insoluble component and the dissolved component were separated by filtration. The solvent of the dissolved component was distilled off and dried by heating, and the resulting polymer was used as a xylene-soluble component, which was expressed as a relative value (XS, wt%) relative to the produced polymer (F).

  The melt index (MI) value indicating the melt flow rate of the polymer was measured according to ASTM D 1238 and JIS K 7210.

  A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that triallylmethylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

  A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that diallyl dichlorosilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

  A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that allyldimethylvinylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

  A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that allyltriethylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

  The polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that the polymerization catalyst was formed and polymerized using cyclohexylmethyldimethoxysilane instead of t-butylethyldimethoxysilane. The obtained results are shown in Table 2.

  A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that dicyclopentyl dimethoxysilane was used instead of t-butylethyldimethoxysilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

<Preparation of solid component>
32 g of ground magnesium for Grignard was charged into a 1000 ml round bottom flask equipped with a stirrer and sufficiently substituted with nitrogen gas. Next, a mixed liquid of 120 g of butyl chloride and 500 ml of dibutyl ether was dropped into the magnesium over 4 hours at 50 ° C., and then reacted at 60 ° C. for 1 hour. After completion of the reaction, the reaction solution was cooled to room temperature and solid content was removed by filtration to obtain a magnesium compound solution. Next, a 500 ml round bottom flask equipped with a stirrer and sufficiently substituted with nitrogen gas was charged with 240 ml of hexane, 5.4 g of tetrabutoxytitanium and 61.4 g of tetraethoxysilane to obtain a homogeneous solution. The magnesium compound solution (150 ml) was added dropwise at 5 ° C. over 4 hours to react, and then stirred at room temperature for 1 hour. Next, the reaction solution was filtered at room temperature to remove the liquid portion, and then the remaining solid was washed with 240 ml of hexane 8 times and dried under reduced pressure to obtain a solid product. Then, 8.6 g of the solid product was charged into a 100-ml round bottom flask equipped with a stirrer and sufficiently substituted with nitrogen gas, and further 48 ml of toluene and 5.8 ml of diisobutyl phthalate were added. The reaction was carried out at 1 ° C. for 1 hour. Thereafter, the liquid part was removed by filtration, and the remaining solid was washed 8 times with 85 ml of toluene. After completion of washing, 21 ml of toluene, 0.48 ml of diisobutyl phthalate and 12.8 ml of titanium tetrachloride were added to the flask and reacted at 95 ° C. for 8 hours. After completion of the reaction, solid-liquid separation is performed at 95 ° C., and the solid content is washed twice with 48 ml of toluene. Then, the treatment with the above mixture of diisobutyl phthalate and titanium tetrachloride is performed again under the same conditions, and washed with 48 ml of hexane eight times. , Filtered and dried to obtain a powdery solid component. The titanium content in the solid catalyst component was measured and found to be 2.1% by weight.

<Preparation of solid catalyst component>
A solid catalyst component was prepared in the same manner as in Example 1 except that the solid component obtained above was used.

<Formation and polymerization of polymerization catalyst>
A polymerization catalyst was formed and polymerized in the same manner as in Example 1 except that the solid catalyst component obtained above was used. The obtained results are shown in Table 2.

<Preparation of solid component>
A 500 ml round bottom flask equipped with a stirrer and thoroughly substituted with nitrogen gas was charged with 4.76 g of anhydrous magnesium chloride, 25 ml of decane and 23.4 ml of 2-ethylhexyl alcohol, and at 130 ° C. for 2 hours. Reaction was performed to obtain a homogeneous solution. Next, 1.11 g of phthalic anhydride was added to the homogeneous solution and reacted at 130 ° C. for 1 hour. The solution was then added dropwise to 200 ml of titanium tetrachloride charged in a 500 ml round bottom flask equipped with a stirrer and fully substituted with nitrogen gas and maintained at -20 ° C over 1 hour. did. Subsequently, after heating up this mixed solution to 110 degreeC over 4 hours, 2.68 ml of diisobutyl phthalate was added and it was made to react for 2 hours. After completion of the reaction, the liquid part is removed by filtration, and the remaining solid component is washed with decane and hexane at 110 ° C. until no free titanium compound is detected, filtered and dried to obtain a powdered solid catalyst component. It was. The titanium content in the solid component was measured and found to be 3.1% by weight.

<Preparation of solid catalyst component>
A solid catalyst component was prepared in the same manner as in Example 1 except that the solid component obtained above was used.

<Formation and polymerization of polymerization catalyst>
A polymerization catalyst was formed and polymerized in the same manner as in Example 1 except that the solid catalyst component obtained above was used. The obtained results are shown in Table 2.

Comparative Example 1
A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that allyltrimethylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

Comparative Example 2
A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that vinyltrimethylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

Comparative Example 3
A polymerization catalyst was formed and polymerized under the same conditions as in Example 1 except that divinyldidimethylsilane was used instead of diallyldimethylsilane to form and polymerize the polymerization catalyst. The obtained results are shown in Table 2.

  From the above results, it can be seen that when the solid catalyst component of the present invention is used for the polymerization of propylene, a highly stereoregular polymer can be obtained in good yield and the hydrogen response is good.

(Production of propylene-ethylene random copolymer)
An autoclave with a stirrer having an internal volume of 2.0 liters, which was completely replaced with nitrogen gas, was charged with 700 ml of n-heptane, and triethylaluminum (TEAL) and Example 1 were maintained under a mixed gas atmosphere of ethylene and propylene. The solid catalyst component prepared in (1) was charged in 0.0035 mmol as titanium atoms to form a polymerization catalyst. At this time, the molar ratio of Ti and TEAL (Ti / TEAL) in the solid catalyst component was 1/600. First, prepolymerization is performed with propylene only at 20 ° C. and 0.1 MPaG for 30 minutes, and then propylene, ethylene, and hydrogen gas are flow rates of 0.22 mol / min, 0.013 mol / min, and 0.0067 mol / min, respectively. Then, the temperature in the system was raised to 70 ° C., and copolymerization was performed at 0.4 MPaG for 120 minutes while maintaining the temperature at 70 ° C. The obtained suspension of the copolymer was separated from the insoluble component and the soluble component, and the insoluble component, ethylene content, MI, and melting point were measured for the insoluble component. Further, the amount of the soluble component was measured for the soluble component. The measurement results are shown in Table 3.

Comparative Example 4
Table 3 shows the results obtained by producing a propylene-ethylene random copolymer in the same manner as in Example 10, except that the solid catalyst component prepared in Comparative Example 1 was used.

(Production of propylene-ethylene block copolymer)
A catalyst for polymerization was prepared by charging 0.0026 mmol of triethylaluminum (TEAL) and the solid catalyst component prepared in Example 1 as titanium atoms into an autoclave with a stirrer having an internal volume of 2.0 liters that was completely replaced with nitrogen gas. Formed. At this time, the Ti and TEAL molar ratio (Ti / TEAL) in the solid catalyst component was 1/700. Charged 200 mmol of hydrogen gas and 1.2 liters of liquefied propylene, and prepolymerized at 20 ° C. for 5 minutes. Then, the propylene bulk polymerization reaction was performed at 70 degreeC for 1 hour. Thereafter, while supplying ethylene, propylene and hydrogen at an ethylene / propylene / hydrogen molar ratio of 0.7 / 1 / 0.03, gas phase polymerization was performed at 1.2 MPa at 70 ° C. for 2 hours, and the rubber part ratio was about A propylene-ethylene block copolymer was produced so as to be 30% by weight. Table 4 shows the polymerization activity and the ethylene content, EPR content, PP part MI, PP part xylene-insoluble matter and MI of the resulting propylene-ethylene block copolymer.

Comparative Example 5
Table 4 shows the results obtained by producing a propylene-ethylene random copolymer in the same manner as in Example 11 except that the solid catalyst component prepared in Comparative Example 1 was used.

  As described above, when the catalyst of the present invention is used for random copolymerization of propylene and ethylene, a random copolymer having a high ethylene content and high randomness can be obtained under the same polymerization conditions. As for the copolymer, a polymer having a high EPR content can be obtained under the same polymerization conditions.

It is a flowchart figure which shows the process of preparing the catalyst component and polymerization catalyst which concern on this invention.

Claims (12)

An organic silicon compound (b) represented by the following general formula (1) and an organic silicon compound represented by the following general formula (2) in the solid component (a) containing magnesium, titanium, halogen and an electron donating compound A solid catalyst component for olefin polymerization obtained by contacting (c) and an organoaluminum compound (d) represented by the following general formula (3).
R ¹ _p Si (OR ² ) _4-p (1)
(In the formula, R ¹ is a hydrogen atom or a linear or branched alkyl group having 1 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, an allyl group, an aralkyl group, a monoalkylamino group, a dialkylamino group. , A cycloalkylamino group, and a polycyclic amino group, which may be the same or different, R ² is an alkyl group having 1 to 4 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, an allyl group, or an aralkyl group. And may be the same or different, and p is an integer of 1 to 3.)
_{[CH 2 = CH- (CH 2)} n ] _{^{q SiR 3 4-q (2}} )
(Wherein R ³ represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, or a halogen atom, and may be the same or different, and n is an integer of 1 to 5) And q is an integer of 1 to 4. However, when q is 1, at least one of R ³ is an alkyl group having 2 to 20 carbon atoms, a cycloalkyl group, a phenyl group, a vinyl group, or a halogen atom. .)
_{^{R 4 r AlQ 3-r (}} 3)
(In the formula, R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, Q represents a hydrogen atom or a halogen atom, and r is a real number of 0 <p ≦ 3.)   2. The solid catalyst for olefin polymerization according to claim 1, wherein the solid component (a) is obtained by contacting a magnesium compound (i), a titanium compound (ii) and an electron donating compound (iii). component.   The solid component (a) is obtained by contacting a magnesium compound (i), a titanium compound (ii), an electron donating compound (iii) and an aromatic hydrocarbon compound (iv). The solid catalyst component for olefin polymerization described in 1.   The solid catalyst component for olefin polymerization according to claim 2 or 3, wherein the magnesium compound (i) is dialkoxymagnesium.   The solid catalyst component for olefin polymerization according to claim 2 or 3, wherein the titanium compound (ii) is titanium tetrachloride.   The solid catalyst component for olefin polymerization according to claim 2 or 3, wherein the electron donating compound (iii) is a phthalic acid diester or a derivative thereof. The solid catalyst component for olefin polymerization according to claim 1, wherein R ^{1 in} the general formula (1) of the organosilicon compound (b) is a secondary carbon or an alkyl group containing a tertiary carbon. .   The solid catalyst component for olefin polymerization according to claim 1, wherein the organosilicon compound (c) is diallyldialkylsilane.   The polysiloxane (e) is brought into contact with the solid component (a) when the organosilicon compound (b), the organosilicon compound (c) and the organoaluminum compound (d) are brought into contact with each other. Item 2. The solid catalyst component for olefin polymerization according to Item 1. (A) The solid catalyst component according to any one of claims 1 to 9, and (B) the following general formula (3);
_{^{R 4 r AlQ 3-r (}} 3)
(Wherein R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms, Q represents a hydrogen atom or a halogen atom, and r is a real number of 0 <p ≦ 3). A catalyst for olefin polymerization.   A process for producing an olefin polymer or copolymer, which is carried out in the presence of the olefin polymerization catalyst according to claim 10.   The olefin monomer used in the production of the olefin polymer or copolymer is propylene or a monomer of propylene and one or more other olefins. A process for producing an olefin polymer or copolymer.

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