JP5981311B2 - Process for producing olefin resin composition - Google Patents

Description

  The present invention relates to a method for producing an olefin resin composition, and in particular, relates to a method for producing an olefin resin composition in which a defective appearance is suppressed and a molded article having excellent rigidity is obtained.

  Conventionally, olefin resins are known as lightweight resins with excellent mechanical properties, chemical stability, and processability. Transport materials such as containers and pallets, interior and exterior parts for automobiles, tanks for industrial chemicals and fuels It is used in a wide range of applications in the industrial materials field such as large containers such as drums, liquid washing, shampoo / rinse bottles, edible oil bottles, and household appliance materials.

  In recent years, production rationalization and cost reduction have been promoted, and in the industrial material field, there has been an increasing demand for thin and light weight, and olefin resins are required to have extremely high performance improvement. In order to meet this demand, adoption of high-stereoregular high-performance catalysts and optimization of resin design have been done, but simply using these methods has not resulted in sufficient performance, There has been a demand for industrial materials having higher rigidity. However, for olefin manufacturers, large-scale equipment remodeling and catalyst conversion were not advantageous in terms of profitability from the viewpoint of cost.

  Conventionally, as a composite material development, an attempt has been made to increase the rigidity by adding an inorganic filler such as filler or talc to an olefin resin. For example, in large blow applications, it is performed with structural members such as automobile parts that require heat resistance and rigidity. However, if the amount of the inorganic filler added is increased for the purpose of improving the rigidity, the specific gravity increases, and the original weight reduction purpose cannot be achieved. Therefore, a material having a small increase in specific gravity and improved rigidity has been desired.

  In addition, olefin resin has a slow crystallization rate after molding, so the molding cycle is low, and depending on the progress of crystallization after heat molding, large crystals are formed, and the transparency and strength of the molded product are insufficient. There are drawbacks. These disadvantages are all derived from the crystallinity of the olefin resin, and it is known that these defects can be eliminated if fine crystals can be rapidly generated during the molding process of the olefin resin.

  For this purpose, it is known to add nucleating agents, conventionally sodium benzoate, 4-tert-butylaluminum benzoate, sodium adipate and disodium bicyclo [2.2.1]. Carboxylic acid metal salts such as heptane-2,3-dicarboxylate, sodium bis (4-tert-butylphenyl) phosphate, sodium-2,2′-methylenebis (4,6-ditert-butylphenyl) phosphate and lithium Phosphate metal salts such as -2,2'-methylenebis (4,6-ditert-butylphenyl) phosphate, acetal skeletons such as dibenzylidene sorbitol, bis (methylbenzylidene) sorbitol and bis (dimethylbenzylidene) sorbitol Compounds are used, for example, disclosed in Patent Documents 1 to 8 It has been.

  The above nucleating agent is added to the olefin resin by mixing an additive containing the olefin resin and the nucleating agent using a Henschel mixer, mill roll, V blender, ribbon blender, kneader blender, Banbury mixer, super mixer, etc. Then, it is put into an extruder and granulated.

  Further, Patent Document 9 proposes a method of performing two-stage polymerization by adding aluminum-bis (p-tert-butylbenzoic acid) hydroxy or sodium benzoate as a nucleating agent after propylene prepolymerization. Yes.

JP-A-58-1736 JP 59-184252 A JP-A-6-340786 JP-A-7-11075 JP 7-48473 A JP-A-8-3364 JP-A-9-118776 JP-A-10-25295 Patent 3044259

  However, the method of blending the olefin resin and the nucleating agent by melt-kneading is economically disadvantageous because the nucleating agent must be added more than necessary to cope with the problem of poor dispersion of the nucleating agent. In addition, there is a problem that the molded product is colored due to the coloring of the nucleating agent itself. On the other hand, the method of adding the nucleating agent before or during the polymerization of the olefin monomer has a problem that the nucleating agent inhibits the polymerization of the olefin monomer.

  In addition, the method of blending the nucleating agent during the polymerization of the olefin monomer has the advantage that the blending step of the nucleating agent by melt kneading such as extrusion after polymerization can be omitted, but the nucleating agent is a catalyst for the polymerization catalyst. Problems have been pointed out that the activity is lowered and the olefin resin is colored by the interaction of the polymerization catalyst with the metal, and there is a problem that the selection and management of the polymerization conditions become complicated.

  The method described in Patent Document 9 is aimed at uniform dispersion of the nucleating agent and thereby improving the rigidity of the polymer, and is a polymerization method by two-stage polymerization, wherein the nucleating agent is obtained after one-stage polymerization of propylene. It is a method of adding. Patent Document 9 discloses that the nucleating agent can influence the polymerization activity, masking the nucleating agent, and preventing adverse effects on the catalytic activity by masking the nucleating agent. It has not been. In the method described in Patent Document 9, no effect is obtained in the one-step polymerization in which the nucleating agent is brought into direct contact with the polymerization catalyst. Moreover, the nucleating agent described in Patent Document 9 was not dissolved in the organoaluminum compound and the organic solvent, and the polymerization activity was impaired.

  Then, the objective of this invention is providing the manufacturing method of the olefin resin composition in which the appearance defect is suppressed and the molded article excellent in rigidity is obtained.

  As a result of intensive studies to solve the above problems, the present inventors have polymerized an olefin monomer using a nucleating agent dissolved in an organic aluminum compound or an organic aluminum compound and an organic solvent, The present inventors have found that the above problems can be solved and have completed the present invention.

（式中、Ｒ^１〜Ｒ^４は各々独立して、水素原子又は分岐を有してもよい炭素原子数１〜９のアルキル基を表し、Ｒ^５は水素原子又はメチル基を表し、ｍは１又は２を表し、ｍが１の場合、Ｍ^１は水素原子又はアルカリ金属原子を表し、ｍが２の場合、Ｍ^１は、二族元素、Ａｌ（ＯＨ）又はＺｎを表す。）

（式中、Ｘ^１は分岐を有してもよい炭素原子数１〜５のアルキレン基であり、Ｒ^７〜Ｒ^１０は、各々、独立して、ハロゲン原子、置換基を有してもよく分岐を有してもよい炭素原子数１〜４のアルキル基、及び置換されていてもよく分岐を有してもよい炭素原子数１〜４のアルコキシ基よりなる群から選択されるものを表し、ｐ、ｑ、ｒ、ｓは各々独立して、０〜３の整数（ただし、ｐおよびｓは０ではない）を表す。）で表される化合物であり、
前記オレフィンモノマーを重合する工程に、チタン含有固体状遷移金属成分と有機金属成分からなるチーグラー・ナッタ触媒を用いることを特徴とするものである。 That is, the method for producing an olefin resin composition of the present invention is a method for producing an olefin resin composition that can obtain a molded product having a flexural modulus of 1600 MPa or more measured according to ISO 178, wherein the nucleating agent component is organic. The nucleating agent component is 0.001 to 0.5 parts by mass with respect to 100 parts by mass of an olefin polymer obtained by polymerizing an aluminum compound or an organic aluminum compound and an organic solvent. So as to prepare a step of polymerizing the olefin monomer by blending before or during the polymerization of the olefin monomer,
The nucleating agent is represented by the following general formula (1) or (3),

(Wherein R ^{1 to} R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 9 carbon atoms which may have a branch, R ⁵ represents a hydrogen atom or a methyl group, and m represents 1 or 2 and when m is 1, M ¹ represents a hydrogen atom or an alkali metal atom, and when m is 2, M ¹ represents a group 2 element, Al (OH) or Zn.)

(In the formula, X ¹ is an alkylene group having 1 to 5 carbon atoms which may have a branch, and R ^{7 to} R ¹⁰ may each independently have a halogen atom or a substituent. Represents one selected from the group consisting of an alkyl group having 1 to 4 carbon atoms which may have a branch and an alkoxy group having 1 to 4 carbon atoms which may be substituted and which may have a branch. , P, q, r and s are each independently a compound represented by an integer of 0 to 3 (provided that p and s are not 0).
In the step of polymerizing the olefin monomer, a Ziegler-Natta catalyst comprising a titanium-containing solid transition metal component and an organometallic component is used.

  Moreover, in the manufacturing method of the olefin resin composition of this invention, it is preferable that the said organoaluminum compound is a trialkylaluminum.

  Moreover, in the manufacturing method of the olefin resin composition of this invention, it is preferable that the said organic solvent is a thing selected from an aliphatic hydrocarbon compound and an aromatic hydrocarbon compound.

  According to the present invention, it is possible to provide a method for producing an olefin resin composition in which a molded product having excellent rigidity can be obtained without reducing the polymerization activity and achieving a molded product having excellent rigidity, and the molded product can be reduced in weight and thickness. It becomes possible.

The production method of the olefin resin composition of the present invention (hereinafter also referred to as “production method of the present invention”) will be described in detail below.
The production method of the present invention is a method for producing an olefin resin composition from which a molded product having a flexural modulus of 1600 MPa or more measured in accordance with ISO 178 (international standard established by the International Organization for Standardization) is obtained. ISO178 uses a test piece of thickness x width x length = 4 x 10 x 80 mm to measure the strength associated with the displacement of the indenter at the center of the test piece, and the elastic modulus in the region where a linear relationship between displacement and strength is established. The bending strength is obtained from the strength at the yield point. Suitably, the olefin resin composition from which the molded article whose bending elastic modulus measured based on ISO178 is 2000 Mpa or more is obtained can be manufactured.
The method for producing an olefin resin composition of the present invention can obtain a molded product having excellent rigidity as described above from the olefin resin composition produced thereby, while the olefin resin in which the appearance defect of the molded product is suppressed. A composition can be produced.
Examples of the nucleating agent component used in the present invention include an organic aluminum compound or an organic aluminum compound and a nucleating agent that dissolves in an organic solvent. Those that do not dissolve may have poor dispersibility in the resin, and the effects of the present invention may not be obtained. About the solubility of a nucleating agent component, it is necessary to confirm beforehand before implementing the manufacturing method of this invention. Whether or not it dissolves can be determined by dissolving a nucleating agent in an organoaluminum compound or an organoaluminum compound and an organic solvent and visually confirming whether a residue is generated.
Specific examples of the compound include a compound represented by the following general formula (1), a phosphate ester metal salt such as lithium-2,2′-methylenebis (4,6-ditert-butylphenyl) phosphate, an amide A nucleating agent that decomposes with an organoaluminum compound may color the polymer or inhibit polymerization activity, and thus cannot be employed in the production method of the present invention.

（式中、Ｒ^１〜Ｒ^４は各々独立して、水素原子又は分岐を有してもよい炭素原子数１〜９のアルキル基を表し、Ｒ^５は水素原子又はメチル基を表し、ｍは１又は２を表し、ｍが１の場合、Ｍ^１は水素原子又はアルカリ金属原子を表し、ｍが２の場合、Ｍ^１は、二族元素、Ａｌ（ＯＨ）又はＺｎを表す。）で表される化合物が好ましく用いられる。 In the present invention, the nucleating agent is represented by the following general formula (1),

(Wherein R ^{1 to} R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 9 carbon atoms which may have a branch, R ⁵ represents a hydrogen atom or a methyl group, and m represents 1 or 2, when m is 1, M ¹ represents a hydrogen atom or an alkali metal atom, and when m is 2, M ¹ represents a group II element, Al (OH) or Zn). The compound to be used is preferably used.

Examples of the alkyl group having 1 to 9 carbon atoms represented by R ¹ , R ² , R ³ and R ⁴ in the general formula (1) include, for example, a methyl group, an ethyl group, a propyl group, and an isopropyl group. Butyl group, secondary butyl group, tertiary butyl group, isobutyl group, amyl group, isoamyl group, tertiary amyl group, hexyl group, cyclohexyl group, heptyl group, isoheptyl group, tertiary heptyl group, Of these, those having a methyl group, a tertiary butyl group, or a tertiary heptyl group are particularly preferred.

Examples of the second group element represented by M ¹ in the general formula (1) include beryllium, magnesium, calcium, strontium, barium, and radium. Among these, elements that are magnesium and calcium are nucleating. Since the nucleating agent effect of the agent component is remarkable, it is preferable.

As a nucleating agent component used by this invention, the compound shown below is mentioned, for example. However, the present invention is not limited by the following compounds.

（式中、Ｒ^６は水素原子、分岐を有してもよく、置換基を有してもよい炭素原子数１〜１２のアルキル基、置換基を有してもよい炭素数３〜１２のシクロアルキル基、置換基を有してもよい炭素原子数６〜２０のアリール基を表し、複数あるＲ^６は各々異なるものであってもよい）で表されるカルバメート構造が炭素原子数１〜１０の炭化水素基を介して少なくとも４つ以上連結した構造を有する化合物、
下記一般式（３）、

（式中、Ｘ^１は分岐を有してもよい炭素原子数１〜５のアルキレン基であり、Ｒ^７〜Ｒ^１０は、各々、独立して、ハロゲン原子、置換基を有してもよく分岐を有してもよい炭素原子数１〜４のアルキル基、及び置換されていてもよく分岐を有してもよい炭素原子数１〜４のアルコキシ基よりなる群から選択されるものを表し、ｐ、ｑ、ｒ、ｓは各々独立して、０〜３の整数（ただし、ｐおよびｓは０ではない）を表す）で表される化合物、
下記一般式（４）、

（式中、Ｒ^１１及びＲ^１２は各々独立して、分岐及び／又は置換基を有してもよい炭素原子数１〜１０のアルキル基、置換基を有してもよい炭素原子数３〜１２のシクロアルキル基、又は置換基を有してもよい炭素原子数６〜２０のアリール基を表し、Ｘ^２及びＸ^３は、各々独立して、単結合手、または、分岐を有してもよい炭素原子数１〜５のアルキレン基を表す。ただし、上記置換基は水酸基を除く）で表される化合物、
下記一般式（５）、

（式中、Ｒ^１３及びＲ^１４は各々独立して、水素原子、分岐および／または置換基を有してもよい炭素原子数１〜１２のアルキル基、置換基を有してもよい炭素原子数３〜１２のシクロアルキル基、又は、置換基を有してもよい炭素原子数６〜２０のアリール基を表し、Ｘ^４は、分岐および／または置換基を有してもよい炭素原子数１〜１０のアルキレン基、置換基を有してもよい炭素原子数３〜１２のシクロアルキレン基、又は置換基を有してもよい炭素原子数６〜２０のアリーレン基を表す。なお、Ｒ^１３およびＲ^１４が互いに結合して縮合環構造を形成してもよい）で表される化合物、
下記一般式（６）、

（式中、Ｒ^１５は、水素原子、分岐および／または置換基を有してもよい炭素原子数１〜１２のアルキル基、置換基を有してもよい炭素原子数３〜１２のシクロアルキル基、又は、置換基を有してもよい炭素原子数６〜２０のアリール基を表し、Ｘ^５は、分岐および／または置換基を有してもよい炭素原子数１〜１０のアルキレン基、置換基を有してもよい炭素原子数３〜１２のシクロアルキレン基、又は置換基を有してもよい炭素原子数６〜２０のアリーレン基を表す）で表される化合物、
下記一般式（７）、

（式中、Ｒ^１６及びＲ^１７は各々独立して、分岐を有してもよい炭素原子数１〜６のアルキル基を表す）で表される化合物、脂肪酸アミド化合物等が挙げられる。 Examples of the amide compound in the present invention include the following general formula (2),

(In the formula, R ⁶ may have a hydrogen atom, a branch, an optionally substituted alkyl group having 1 to 12 carbon atoms, or an optionally substituted group having 3 to 12 carbon atoms. A cycloalkyl group, an aryl group having 6 to 20 carbon atoms which may have a substituent, and a plurality of R ⁶ may be different from each other). A compound having a structure in which at least 4 or more are linked via 10 hydrocarbon groups,
The following general formula (3),

(In the formula, X ¹ is an alkylene group having 1 to 5 carbon atoms which may have a branch, and R ^{7 to} R ¹⁰ may each independently have a halogen atom or a substituent. Represents one selected from the group consisting of an alkyl group having 1 to 4 carbon atoms which may have a branch and an alkoxy group having 1 to 4 carbon atoms which may be substituted and which may have a branch. , P, q, r, and s each independently represent a compound represented by an integer of 0 to 3 (provided that p and s are not 0),
The following general formula (4),

(In the formula, R ¹¹ and R ¹² are each independently an alkyl group having 1 to 10 carbon atoms which may have a branch and / or a substituent, and 3 to 3 carbon atoms which may have a substituent. 12 represents a cycloalkyl group having 12 or an aryl group having 6 to 20 carbon atoms which may have a substituent, and X ² and X ³ each independently have a single bond or a branch. Or an alkylene group having 1 to 5 carbon atoms, provided that the substituent is a compound excluding a hydroxyl group),
The following general formula (5),

Wherein R ¹³ and R ¹⁴ are each independently a hydrogen atom, a branched and / or optionally substituted alkyl group having 1 to 12 carbon atoms or an optionally substituted carbon atom. Represents a cycloalkyl group having a number of 3 to 12 or an aryl group having 6 to 20 carbon atoms which may have a substituent, and X ⁴ represents the number of carbon atoms which may have a branch and / or a substituent. It represents an alkylene group having 1 to 10, a cycloalkylene group having 3 to 12 carbon atoms which may have a substituent, or an arylene group having 6 to 20 carbon atoms which may have a substituent. ¹³ and R ¹⁴ may be bonded to each other to form a condensed ring structure),
The following general formula (6),

(In the formula, R ¹⁵ represents a hydrogen atom, a branched and / or alkyl group having 1 to 12 carbon atoms which may have a substituent, or a cycloalkyl having 3 to 12 carbon atoms which may have a substituent. Group or an aryl group having 6 to 20 carbon atoms which may have a substituent, and X ⁵ is an alkylene group having 1 to 10 carbon atoms which may have a branch and / or a substituent, A cycloalkylene group having 3 to 12 carbon atoms which may have a substituent, or an arylene group having 6 to 20 carbon atoms which may have a substituent.
The following general formula (7),

(Wherein, R ¹⁶ and R ¹⁷ each independently represents an optionally substituted alkyl group having 1 to 6 carbon atoms), fatty acid amide compounds, and the like.

  The hydrocarbon group having 1 to 10 carbon atoms to which the carbamate structure represented by the general formula (2) is bonded represents a functional group composed of a carbon atom and a hydrogen atom, and its molecular structure includes alkane and alkene. , Cycloalkane, aromatic hydrocarbon and the like, and represents a hydrocarbon group in which at least 4 hydrogen atoms are substituted with a carbamate structure. The hydrocarbon group may be interrupted by an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, an imino group or an aryl group, and the hydrogen atom in the hydrocarbon group is substituted with the following substituent. It may be a thing. These interruptions or substitutions may be combined.

Examples of the alkyl group having 1 to 12 carbon atoms which may have a branch represented by R ⁶ in the general formula (2) include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, Secondary butyl group, tertiary butyl group, isobutyl group, pentyl group, isopentyl group, tertiary pentyl group, hexyl group, 2-hexyl group, 3-hexyl group, heptyl group, 2-heptyl group, 3-heptyl group, Examples include isoheptyl group, tertiary heptyl group, n-octyl group, isooctyl group, tertiary octyl group, nonyl group, isononyl group, decyl group, undecyl group, dodecyl group and the like. Of these, a hexyl group and an octyl group are preferable.
These alkyl groups may be interrupted by an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, an imino group or the following aryl group, and a hydrogen atom in the alkyl group is substituted with the following substituent. These interruptions or substitutions may be combined.

  Examples of the substituent that the alkyl group in the general formula (2) may have include a hydroxy group, a halogen atom, an amino group, a nitro group, a cyano group, an alkenyl group, an alkenyloxy group, an alkanoyloxy group, and an alkoxycarbonyl group. Chain aliphatic groups such as pyrrole, furan, thiophene, imidazole, pyridine, pyridazine, pyrimidine, pyrazine, piperidine, morpholine, 2H-pyran, phenyl, biphenyl, triphenyl, naphthalene, anthracene, pyrrolidine, pyridine , An indoline, an indole, an isoindole, an indazole, a purine, a quinolidine, a quinoline, an isoquinoline, or a cyclic aliphatic group such as a cycloalkyl group.

Examples of the cycloalkyl group having 3 to 12 carbon atoms which may have a substituent represented by R ⁶ in the general formula (2) include a cyclopropyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclo Examples include an octyl group, a cyclononyl group, a cyclodecyl group, and the like, and a cyclohexyl group is preferable. The hydrogen atom in the cycloalkyl group is substituted with a hydroxy group, a halogen atom, an alkyl group, an alkoxy group, an alkenyl group, an alkenyloxy group, an alkoxyalkyl group, an alkanoyloxy group, an alkoxycarbonyl group, a nitrile group or a cyano group. Also good.

As the aryl group having 6 to 20 carbon atoms which may have a substituent, represented by R ⁶ in the general formula (2), a hydrogen atom in the aryl group is a halogen atom, a nitro group, or a cyano group. Group, an alkyl group, an alkoxy group, an alkenyl group, an alkenyloxy group, an alkoxyalkyl group, an alkanoyloxy group, or an alkoxycarbonyl group, these aryl groups include, for example, a phenyl group, 3,4 , 5-trimethoxyphenyl group, 4-tert-butylphenyl group, biphenyl group, naphthyl group, methylnaphthyl group, anthracenyl group, phenanthryl group and the like, and a phenyl group is preferable.

（式中、Ｒ^１８は、上記一般式（２）中のＲ^６と同じものを表し、ｋは２〜１０の整数を表し、複数あるＲ^１８は各々異なるものであってもよい）で表される化合物、又は、下記一般式（９）、

（式中、Ｒ^１９は、上記一般式（２）中のＲ^６と同じものを表し、複数あるＲ^１９は各々異なるものであってもよい）で表される化合物を好ましく用いることができる。 Of the compounds represented by the general formula (2), the following general formula (8),

(In the formula, R ¹⁸ represents the same as R ⁶ in the general formula (2), k represents an integer of 2 to 10, and a plurality of R ¹⁸ may be different from each other). Or a compound represented by the following general formula (9),

(Wherein, R ¹⁹ represents the same as R ⁶ in the general formula (2), a plurality of R ¹⁹ may also is a in each different) can be preferably used a compound represented by.

Examples of the specific structure of the compound represented by the general formula (2) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

Examples of the alkylene group having 1 to 5 carbon atoms that may have X ¹ branch in the general formula (3) include a methylene group, an ethylene group, a propylene group, a butylene group, an isobutylene group, and a pentylene group. -CH _2- in these alkylene groups may be substituted with -O-, -CO-, -COO- or -OCO-, and the hydrogen atom in the alkylene group is a halogen atom, alkenyl A group, an alkenyloxy group, an alkanoyloxy group, an alkoxycarbonyl group, a nitro group, a cyano group, an aryl group or a saturated aliphatic ring.

Examples of the alkyl group having 1 to 4 carbon atoms which may have a substituent of R ^{7 to} R ¹⁰ in the general formula (3) and may have a branch include a methyl group, an ethyl group, a propyl group, Isopropyl group, butyl group, tert-butyl group and the like, and these alkyl groups may be interrupted by oxygen atom, sulfur atom, carbonyl group, ester group, amide group, imino group or the above aryl group, The hydrogen atom in the alkyl group may be substituted with the above-mentioned substituent, and these interruptions or substitutions may be combined.

In the general formula (3), R ^{7 to} R ¹⁰ which may be substituted or branched may have 1 to 4 carbon atoms such as a methoxy group, an ethoxy group, a propoxy group or an isopropoxy group. Group, butoxy group and the like. These alkoxy groups may be interrupted by an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, an imino group or the above aryl group, and a hydrogen atom in the alkoxy group is substituted with the above substituent. These interruptions or substitutions may be combined.

Examples of the specific structure of the compound represented by the general formula (3) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

Among the compounds represented by the general formula (3), compounds in which R ⁷ and R ¹⁰ in the general formula (3) are in the ortho position of the benzene ring are preferably used.

  Moreover, the compound whose p and s in the said General formula (3) are 1 and q and r are 2 is used preferably.

Examples of the alkyl group having 1 to 10 carbon atoms which may have a branch and / or substituent represented by R ¹¹ or R ¹² in the general formula (4) include, for example, a methyl group, an ethyl group, Propyl group, isopropyl group, butyl group, sec-butyl group, tert-butyl group, isobutyl group, pentyl group, isopentyl group, tert-pentyl group, hexyl group, 2-hexyl group, 3-hexyl group, heptyl group, 2 -Heptyl group, 3-heptyl group, isoheptyl group, tertiary heptyl group, n-octyl group, isooctyl group, tertiary octyl group, nonyl group, isononyl group, decyl group and the like. These alkyl groups are oxygen atoms , A sulfur atom, a carbonyl group, an ester group, an amide group, an imino group or the above aryl group, the hydrogen atom in the alkyl group may be substituted with the above substituent. At best, these interruptions or substitutions may be combined.

Examples of the cycloalkyl group having 3 to 12 carbon atoms which may have a substituent and represented by R ¹¹ or R ¹² in the general formula (4) include R ⁶ in the general formula (2) and The same can be mentioned.

The aryl group having 6 to 20 carbon atoms which may have a substituent and represented by R ¹¹ or R ¹² in the general formula (4) is the same as R ⁶ in the general formula (2). Things.

The alkylene group having 1 to 5 carbon atoms which may have a branch and represented by X ² or X ³ in the general formula (4) is the same as X ¹ in the general formula (3). Is mentioned.

（式中、Ｒ^２０は、上記一般式（４）中のＲ^１１と同じものを表し、Ｒ^２１は、上記一般式（４）中のＲ^１２と同じものを表し、ｔは、０又は１を表す）のいずれかで表される化合物を好ましく用いることができる。 Of the compounds represented by the general formula (4), the following general formulas (10) to (12),

(In the formula, R ²⁰ represents the same as R ¹¹ in the general formula (4), R ²¹ represents the same as R ¹² in the general formula (4), and t is 0 or 1 Can be preferably used.

Examples of the specific structure of the compound represented by the general formula (4) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

As the alkyl group having 1 to 12 carbon atoms which may be branched, represented by R ¹³ and R ¹⁴ in the general formula (5) or R ¹⁵ in the general formula (6), The same thing as R < ⁶ > in Formula (2) is mentioned.

The cycloalkyl group having 3 to 12 carbon atoms which may have a substituent, represented by R ¹³ and R ¹⁴ in the general formula (5) or R ¹⁵ in the general formula (6), The same thing as R < ⁶ > in the said General formula (2) is mentioned.

It is represented by R ¹³ and R ¹⁴ in the general formula (5) or R ¹⁵ in the general formula (6).
Examples of the aryl group having 6 to 20 carbon atoms which may have a substituent include the same as R ⁶ in the general formula (2).

Examples of the alkylene group having 1 to 10 carbon atoms which may be branched or have a substituent represented by X ⁴ and X ⁵ in the general formula (5) or (6) include methylene. Group, ethylene group, propylene group, methylethylene group, butylene group, 1-methylpropylene group, 2-methylpropylene group, 1,2-dimethylpropylene group, 1,3-dimethylpropylene group, 1-methylbutylene group, 2 -Methylbutylene group, 3-methylbutylene group, 1,3-dimethylbutylene group, pentylene group, hexylene group, heptylene group, octylene group and the like can be mentioned. These alkylene groups may be interrupted by an oxygen atom, a sulfur atom, a carbonyl group, an ester group, an amide group, an imino group or the above aryl group, and the hydrogen atom in the alkylene group is substituted by the above substituent. These interruptions or substitutions may be combined.

The cycloalkylene group having 3 to 12 carbon atoms which may have a substituent represented by X ⁴ and X ⁵ in the general formula (5) or (6) is a 1,2-cyclopropylene group. 1,3-cycloheptylene group, trans-1,4-cyclohexylene group and the like. The hydrogen atom in these cycloalkylene groups may be substituted with the above substituents.

Examples of the arylene group having 6 to 20 carbon atoms which may have a substituent represented by X ⁴ and X ⁵ in the general formula (5) or (6) include a 1,4-phenylene group. 1,3-phenylene group, 1,5-naphthylene group, 2,6-naphthylene group, 2,6-phenalene group, 1,6-phenanthrene group, 2,7-phenanthrene group, 2,6-anthracene group, etc. Is mentioned. The hydrogen atom of these arylene groups may be substituted with the above substituent.

Further, when R ¹³ and R ¹⁴ in the general formula (5) or R ¹⁵ in the general formula (6) is an alkyl group, the nucleating agent for the olefin polymer is increased when the carbon number of the alkyl group is increased. However, in the present invention, R ¹³ , R ¹⁴ may deteriorate the heat resistance of the compound itself and may decompose and adversely affect the molded product when the olefin polymer is molded. , Or the number of carbon atoms of the alkyl group represented by R ¹⁵ is preferably within the range of 1 to 8, particularly preferably within the range of 1 to 5.

Examples of the specific structure of the compound represented by the general formula (5) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

Examples of the specific structure of the compound represented by the general formula (6) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

Examples of the alkyl group having 1 to 6 carbon atoms which may have a branch represented by R ¹⁶ and R ¹⁷ in the general formula (7) include a methyl group, an ethyl group, a propyl group, an isopropyl group, and a butyl group. , Isobutyl group, tertiary butyl group, pentyl group, isopentyl group, tertiary pentyl group, neopentyl group, hexyl group, isohexyl group and the like.

（式中、Ｒ^２２は、一般式（７）中のＲ^１６と同じものを表し、Ｒ^２３は一般式（７）中のＲ^１７と同じものを表す）、
又は、下記一般式（１４）、

（式中、Ｒ^２４は、一般式（７）中のＲ^１６と同じものを表し、Ｒ^２５は、一般式（７）中のＲ^１７と同じものを表す）で表される化合物を好ましく用いることができる。 Among the compounds represented by the general formula (7), the following general formula (13),

(Wherein R ²² represents the same as R ¹⁶ in general formula (7), and R ²³ represents the same as R ¹⁷ in general formula (7)),
Or the following general formula (14),

(In the formula, R ²⁴ represents the same as R ¹⁶ in the general formula (7), and R ²⁵ represents the same as R ¹⁷ in the general formula (7)). be able to.

Specific examples of the structure of the compound represented by the general formula (7) in the present invention include the following compounds. However, the present invention is not limited to the following compounds.

  Examples of the fatty acid amide compound include ethylene bisstearamide, ethylene bis (12-hydroxystearamide), stearic acid amide, and the like.

  Examples of amide compounds other than those described above include 1,2,3-propanetricarboxylic acid tricyclohexylamide, 1,2,3-propanetricarboxylic acid tri (2-methylcyclohexylamide), 1,2,3- Propanetricarboxylic acid tri (3-methylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (4-methylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (2,3-dimethylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (2-ethylcyclohexylamide) 1,2,3-propanetricarboxylic acid tri (3-ethylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (4-ethylcyclohexyl) Amide), 1,2,3-propanetricarboxylic acid Tri (2-n-propylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-n-propylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (4-n-propylcyclohexylamide) 1,2,3-propanetricarboxylic acid tri (2-isopropylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-isopropylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (4- Isopropylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (2-n-butylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-n-butylcyclohexylamide) 1,2,3- Propane tricarboxylic acid tri (4-n-butylcyclohex Silamide), 1,2,3-propanetricarboxylic acid tri (2-isobutylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-isobutylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri ( 4-isobutylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (2-secondarybutylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-secondarybutylcyclohexylamide) 1,2, 3-propanetricarboxylic acid tri (4-secondary cyclohexylamide), 1,2,3-propanetricarboxylic acid tri (2-tert-butylcyclohexylamide), 1,2,3-propanetricarboxylic acid tri (3-third Tributylcyclohexylamide), 1,2,3-propanetricarbo Acid tri (4-tert-butylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetracyclohexylamide, 1,2,3,4-butanetetracarboxylic acid tetra (2-methylcyclohexylamide), 1 , 2,3,4-Butanetetracarboxylic acid tetra (3-methylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (4-methylcyclohexylamide), 1,2,3,4-butane Tetracarboxylic acid tetra (2-ethylcyclohexylamide) 1,2,3,4-butanetetracarboxylic acid tetra (3-ethylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (4-ethylcyclohexyl) Amide), 1,2,3,4-butanetetracarboxylic acid tetra (2-n-propylcyclohexyl) Amide), 1,2,3,4-butanetetracarboxylic acid tetra (3-n-propylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (4-n-propylcyclohexylamide), 1 , 2,3,4-Butanetetracarboxylic acid tetra (2-isopropylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (3-isopropylcyclohexylamide), 1,2,3,4-butane Tetracarboxylic acid tetra (4-isopropylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (2-n-butylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (3 -N-Butylcyclohexylamide) 1,2,3,4-Butanetetracarboxylic acid tetra (4-n-butyl) Cyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (2-isobutylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (3-isobutylcyclohexylamide) 1,2,3 , 4-Butanetetracarboxylic acid tetra (4-isobutylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (2-secondarybutylcyclohexylamide), 1,2,3,4-butanetetracarboxylic Acid tetra (3-second butylcyclohexylamide) 1,2,3,4-butanetetracarboxylic acid tetra (4-secondary butylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (2- Tert-butylcyclohexylamide), 1,2,3,4-butanetetracarboxylic acid tetra (3-tert-butyl) (Cyclohexylamide) 1,2,3,4-butanetetracarboxylic acid tetra (4-tert-butylcyclohexylamide), 1,3,5-benzenetricarboxylic acid tris (benzylamide), 1,3,5-benzenetricarboxylic acid Tris (cycloheptylamide), 1,3,5-benzenetricarboxylic acid tris (3-methylcyclohexylamide), 1,3,5-benzenetricarboxylic acid tris (3,4-dimethylphenylamide), 1,3,5 Benzenetricarboxylic acid tris (cyclododecylamide), 1,3,5-benzenetricarboxylic acid tris (tertiary octylamide), 1,3,5-benzenetricarboxylic acid tris (S (+)-1-cyclohexylethylamide) 1,3,5-benzenetricarboxylic acid tris (R (−)-1-cyclohexane Silethylamide), 1,3,5-benzenetricarboxylic acid tris (cyclooctylamide), 1,3,5-benzenetricarboxylic acid tris (2,3-dimethylcyclohexylamide), 1,3,5-benzenetricarboxylic acid Tris (cyclooctylamide), 1,3,5-benzenetricarboxylic acid tris (n-butyramide), 1,3,5-benzenetricarboxylic acid tris (1,1,3,3-tetramethylbutyramide), 1, 3,5-tris (2,2-dimethylpropionamide) benzene and the like can be mentioned.

  The amount of the nucleating agent component used relative to 100 parts by mass of the olefin polymer obtained by the production method of the present invention is preferably in the range of 0.001 to 0.5 parts by mass, and 0.005 to 0.3 parts by mass. A range is more preferred. When the amount is less than 0.001 part by mass, the effect of the nucleating agent may not be obtained, and when 0.5 parts by mass or more is molded by the olefin polymer alone obtained by the production method of the present invention, The additive effect may not be obtained, which is uneconomical.

  In the production method of the present invention, the nucleating agent component is dissolved in an organoaluminum compound, or in an organoaluminum and an organic solvent, before or during the polymerization of the olefin monomer. For example, it can be added to any of a polymerization system, a catalyst system, and a compounding tube.

  When the nucleating agent component is added before or during the polymerization of the olefin monomer, the nucleating agent component and the organoaluminum compound may be mixed, and the nucleating agent is dispersed in an organic solvent. In addition, an organoaluminum compound may be added to dissolve the nucleating agent component. Thereby, it is considered that the nucleating agent component is masked by the organoaluminum compound.

  As the organoaluminum compound, for example, alkylaluminum, alkylaluminum hydride and the like can be used, but alkylaluminum is preferable, and trialkylaluminum is particularly preferable, and specifically, trimethylaluminum, triethylaluminum, tri-n. -Propyl aluminum, triisobutyl aluminum, tri-n-hexyl aluminum, tri-n-octyl aluminum and the like. Any of the above organoaluminum compounds can be used as a mixture. Moreover, the aluminoxane obtained by reaction of alkylaluminum or alkylaluminum hydride and water can be used similarly.

  In the production method of the present invention, an organoaluminum compound that can be regenerated by treating a material masked with an organoaluminum compound with a hydrogen-donating compound such as water, alcohol, or acid is preferably used.

  As a mixing ratio of the nucleating agent component and the organoaluminum compound, the molar ratio of aluminum in the nucleating agent component and the organoaluminum compound is preferably 1/1000 to 1 / 0.3. If the nucleating agent component is more than 1 / 0.3, there is a problem that the excess nucleating agent component adversely affects the polymerization activity of the olefin monomer. If the nucleating agent component is less than 1/1000, the organoaluminum compound after polymerization. May remain in the olefin polymer and the physical properties of the olefin polymer may deteriorate, or the desired metal may not be polymerized due to the influence of the catalyst metal components.

Examples of the organic solvent include aliphatic and aromatic hydrocarbon compounds. Examples of the aliphatic hydrocarbon compound include saturated hydrocarbon compounds such as n-pentane, n-hexane, n-heptane, n-octane, isooctane and purified kerosene, and cyclic saturated hydrocarbons such as cyclopentane, cyclohexane and cycloheptane. Examples of the aromatic hydrocarbon compound include compounds such as benzene, toluene, ethylbenzene, and xylene. These organic solvents may be used individually by 1 type, and may use 2 or more types together.
Of the above organic solvents, n-hexane or n-heptane is preferably used. The concentration of the organoaluminum compound in the organic solvent is preferably in the range of 0.001 to 0.5 mol / l, particularly preferably 0.01 to 0.1 mol / l.

  Examples of the olefin monomer used in the present invention include ethylene, propylene, 1-butene, 1-hexene, 3-methyl-1-butene, 3-methyl-1-pentene, 4-methyl-1-pentene, and vinylcyclohexane. Examples include alkane, styrene, and derivatives thereof.

The method for producing a nucleating agent masterbatch of the present invention comprises blending a nucleating agent dissolved in an organoaluminum compound or an organoaluminum compound and an organic solvent before or during the polymerization of the olefin monomer. It has the characteristic in providing the process of superposing | polymerizing. The ratio of the olefin monomer and the nucleating agent component is adjusted so that the nucleating agent component is 0.001 to 0.5 parts by mass with respect to 100 parts by mass of the olefin polymer obtained by polymerizing the olefin monomer. Done.
As a method of adjusting the nucleating agent component to the above-mentioned blending amount with respect to the olefin polymer, the polymerization activity when polymerized without adding the nucleating agent component is obtained, and the desired polymer is obtained for the obtained polymer Add nucleating agent dissolved in organoaluminum compound or organoaluminum compound and organic solvent so that blending amount of nucleating agent component is added, and polymerize under the same conditions as when no nucleating agent component was added. The method can be adopted. Moreover, the apparatus which introduce | transduces the apparatus which adjusts the addition amount of each component into superposition | polymerization equipment, and may adjust and polymerize so that a nucleating agent component may become the said compounding quantity.

  The olefin polymer in the present invention is obtained by homopolymerization of the olefin monomer or copolymerization containing the olefin monomer, such as propylene homopolymer, ethylene-propylene copolymer, ethylene-propylene-butene copolymer, etc. Polypropylene such as a copolymer of propylene and an α-olefin other than propylene, high-density polyethylene, cycloolefin, and the like.

  The polymerization of the olefin monomer can be carried out in an inert gas atmosphere such as nitrogen in the presence of a polymerization catalyst, but may be carried out in the above inert solvent. In addition, an active hydrogen compound, a particulate carrier, an organoaluminum compound, an ion exchange layered compound, and an inorganic silicate may be added as long as polymerization is not inhibited.

  In the present invention, the polymerization catalyst is not particularly limited, and a known polymerization catalyst can be used. For example, a transition metal of Groups 3 to 11 of the periodic table (for example, titanium, zirconium, hafnium, vanadium, Iron, nickel, lead, platinum, yttrium, samarium, etc.), and typical examples include Ziegler catalysts, Ziegler-Natta catalysts composed of titanium-containing solid transition metal components and organometallic components, at least one A metallocene catalyst, a chromium-based catalyst, or the like comprising a transition metal compound of Group 4 to Group 6 of the periodic table having a cyclopentadienyl skeleton and a promoter component can be used.

  In the present invention, the polymerization method of the olefin monomer is not particularly limited and a known method can be adopted. For example, aliphatic hydrocarbons such as butane, pentane, hexane, heptane, isooctane, cyclopentane, cyclohexane, methyl Slurry polymerization, which is polymerization in an inert solvent such as cycloaliphatic alicyclic hydrocarbons, toluene, xylene, ethylbenzene aromatic hydrocarbons, gasoline fractions, hydrogenated diesel fractions, etc. The olefin monomer is obtained by a gas phase polymerization method carried out in 1), a bulk polymerization method using the olefin monomer itself as a solvent, a solution polymerization method in which a polymer is formed in a liquid state, or a combination polymerization method, a single-stage polymerization method or a multi-stage polymerization method. Polymerization to produce olefin homopolymers, propylene and charcoal Examples of the polymerization method include a method of producing a copolymer by copolymerizing at least one olefin (excluding propylene) unit selected from the group consisting of olefin units having 2 to 12 atoms. The production method can be adopted without distinction.

  As a polymerization tank used in the polymerization method, a continuous reaction tank in an existing polymerization facility may be used as it is, and the size, shape, material, and the like can be used without any particular limitation on conventional polymerization facilities.

  In the present invention, as long as it does not adversely affect the polymerization, other additives usually used for the olefin resin can be further added during the polymerization of the olefin monomer as necessary. When adding at the time of superposition | polymerization of an olefin monomer, you may use what mixed and stirred the other additive, the nucleating agent, and the organoaluminum compound. In the reaction by this method, when the by-product compound does not affect the polymer, it can be used as it is. However, when the by-product compound has an adverse effect on the polymer, the compound is removed by distillation under reduced pressure or the like. It is preferable to use it. Moreover, you may mix | blend after superposition | polymerization of an olefin.

  In addition, even when other additives are added directly, there is an adverse effect on the polymerization, but when the influence on the polymerization can be suppressed by masking with an organoaluminum compound, the production of the nucleating agent master batch of the present invention Can be used in the method.

  Examples of the other additives include phenolic antioxidants, phosphorus antioxidants, ultraviolet absorbers, hindered amine compounds, heavy metal deactivators, nucleating agents, flame retardants, metal soaps (aliphatic carboxylate metal) Salt), hydrotalcite, filler, lubricant, antistatic agent, pigment, dye, plasticizer and the like.

  Examples of the phenolic antioxidant include 2,6-di-tert-butyl-4-ethylphenol, 2-tert-butyl-4,6-dimethylphenol, styrenated phenol, 2,2′-methylenebis ( 4-ethyl-6-tert-butylphenol), 2,2′-thiobis- (6-tert-butyl-4-methylphenol), 2,2′-thiodiethylenebis [3- (3,5-di-tert. Tributyl-4-hydroxyphenyl) propionate], 2-methyl-4,6-bis (octylsulfanylmethyl) phenol, 2,2′-isobutylidenebis (4,6-dimethylphenol), isooctyl-3- ( 3,5-di-tert-butyl-4-hydroxyphenyl) propionate, N, N′-hexane-1,6-diylbis [3- (3,5-di-tert-butyl-4 Hydroxyphenyl) propionamide, 2,2′-oxamido-bis [ethyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 2-ethylhexyl-3- (3 ′, 5 ′ -Di-tert-butyl-4'-hydroxyphenyl) propionate, 2,2'-ethylenebis (4,6-di-tert-butylphenol), 3,5-bis (1,1-dimethylethyl) -4- Hydroxy-benzenepropanoic acid and C13-15 alkyl ester, 2,5-di-tertiary amylhydroquinone, hindered phenol polymer (trade name AO.OH998, manufactured by Adeka Palmalol), 2,2′-methylenebis [ 6- (1-methylcyclohexyl) -p-cresol], 2-tert-butyl-6- (3-tert-butyl-2-hydroxy-5-methyl) Benzyl) -4-methylphenyl acrylate, 2- [1- (2-hydroxy-3,5-di-tert-pentylphenyl) ethyl] -4,6-di-tert-pentylphenyl acrylate, 6- [3- (3-tert-butyl-4-hydroxy-5-methyl) propoxy] -2,4,8,10-tetra-tert-butylbenz [d, f] [1,3,2] -dioxaphosphobin, Hexamethylene bis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, bis [monoethyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate calcium salt, 5,7 -Bis (1,1-dimethylethyl) -3-hydroxy-2 (3H) -benzofuranone and the reaction product of o-xylene, 2,6-di-tert-butyl-4- (4,6-bis (Ok Tilthio) -1,3,5-triazin-2-ylamino) phenol, DL-a-tocophenol (vitamin E), 2,6-bis (α-methylbenzyl) -4-methylphenol, bis [3,3 -Bis- (4'-hydroxy-3'-tert-butyl-phenyl) butanoic acid] glycol ester, 2,6-di-tert-butyl-p-cresol, 2,6-diphenyl-4-octadecyloxyphenol , Stearyl (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, distearyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate, tridecyl-3,5-di-tert. Butyl-4-hydroxybenzylthioacetate, thiodiethylenebis [(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], , 4′-thiobis (6-tert-butyl-m-cresol), 2-octylthio-4,6-di (3,5-di-tert-butyl-4-hydroxyphenoxy) -s-triazine, 2,2 '-Methylenebis (4-methyl-6-tert-butylphenol), bis [3,3-bis (4-hydroxy-3-tert-butylphenyl) butyric acid] glycol ester, 4,4'-butylidenebis (2, 6-di-tert-butylphenol), 4,4′-butylidenebis (6-tert-butyl-3-methylphenol), 2,2′-ethylidenebis (4,6-di-tert-butylphenol), 1,1 , 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, bis [2-tert-butyl-4-methyl-6- (2-hydroxy-3-tert-butyl-5-methyl) Benzyl) phenyl] terephthalate, 1,3,5-tris (2,6-dimethyl-3-hydroxy-4-tert-butylbenzyl) isocyanurate, 1,3,5-tris (3,5-di-tertiary) Butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,3,5-tris [(3,5-di-tert-butyl-4-hydroxyphenyl) propionyloxyethyl] isocyanurate, tetrakis [methylene-3- (3 ′, 5′-di-tert-butyl-4′-hydroxyphenyl) propionate ] Methane, 2-tert-butyl-4-methyl-6- (2-acryloyloxy-3-tert-butyl-5-methylbenzyl) phenol, 3,9-bis [2- ( -Tert-butyl-4-hydroxy-5-methylhydrocinnamoyloxy) -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, triethylene glycol bis [β -(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], stearyl-3- (3,5-ditert-butyl-4-hydroxyphenyl) propionic acid amide, palmityl-3- (3 5-di-tert-butyl-4-hydroxyphenyl) propionic acid amide, myristyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid amide, lauryl-3- (3,5-ditert 3- (3,5-dialkyl-4-hydroxyphenyl) propionic acid derivatives such as tributyl-4-hydroxyphenyl) propionic acid amide I can get lost.

  Examples of the phosphorus antioxidant include triphenyl phosphite, diisooctyl phosphite, heptakis triphosphite, triisodecyl phosphite, diphenylisooctyl phosphite, diisooctylphenyl phosphite, diphenyltridecyl phosphite. Phyto, triisooctyl phosphite, trilauryl phosphite, diphenyl phosphite, tris (dipropylene glycol) phosphite, diisodecyl pentaerythritol diphosphite, dioleyl hydrogen phosphite, trilauryl trithiophosphite, bis (tridecyl) Phosphite, tris (isodecyl) phosphite, tris (tridecyl) phosphite, diphenyldecylphosphite, dinonylphenylbis (nonylphenyl) phospho Phyto, poly (dipropylene glycol) phenyl phosphite, tetraphenyldipropyl glycol diphosphite, trisnonylphenyl phosphite, tris (2,4-di-tert-butylphenyl) phosphite, tris (2,4-di Tert-butyl-5-methylphenyl) phosphite, tris [2-tert-butyl-4- (3-tert-butyl-4-hydroxy-5-methylphenylthio) -5-methylphenyl] phosphite, tris Decyl phosphite, octyl diphenyl phosphite, di (decyl) monophenyl phosphite, distearyl pentaerythritol diphosphite, a mixture of distearyl pentaerythritol and calcium stearate, alkyl (C10) bisphenol A phosphite, di (tridecyl) ) Intererythritol diphosphite, di (nonylphenyl) pentaerythritol diphosphite, bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2,6-di-tert-butyl-4- Methylphenyl) pentaerythritol diphosphite, bis (2,4,6-tri-tert-butylphenyl) pentaerythritol diphosphite, bis (2,4-dicumylphenyl) pentaerythritol diphosphite, tetraphenyl-tetra (Tridecyl) pentaerythritol tetraphosphite, bis (2,4-di-tert-butyl-6-methylphenyl) ethyl phosphite, tetra (tridecyl) isopropylidenediphenol diphosphite, tetra (tridecyl) -4,4 '-N-butylidenebis (2-th Tributyl-5-methylphenol) diphosphite, hexa (tridecyl) -1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butanetriphosphite, tetrakis (2,4-di-) Tert-butylphenyl) biphenylenediphosphonite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, (1-methyl-1-propanyl-3-ylidene) tris (2-1 , 1-dimethylethyl) -5-methyl-4,1-phenylene) hexatridecyl phosphite, 2,2′-methylenebis (4,6-tert-butylphenyl) -2-ethylhexyl phosphite, 2,2 ′ -Methylenebis (4,6-di-tert-butylphenyl) -octadecyl phosphite, 2,2'-ethylidenebis (4,6 Di-tert-butylphenyl) fluorophosphite, 4,4′-butylidenebis (3-methyl-6-tert-butylphenylditridecyl) phosphite, tris (2-[(2,4,8,10-tetrakis- Tert-butyldibenzo [d, f] [1,3,2] dioxaphosphin-6-yl) oxy] ethyl) amine, 3,9-bis (4-nonylphenoxy) -2,4,8, 10-tetraoxa-3,9-diphosphasspiro [5,5] undecane, 2,4,6-tri-tert-butylphenyl-2-butyl-2ethyl-1,3-propanediol phosphite, poly-4 , 4'-isopropylidenediphenol C12-15 alcohol phosphite, 2-ethyl-2-butylpropylene glycol and 2,4,6-tri-tert-butylphenol phosphat Doors and the like.

  Examples of the thioether-based antioxidant include tetrakis [methylene-3- (laurylthio) propionate] methane, bis (methyl-4- [3-n-alkyl (C12 / C14) thiopropionyloxy] 5-tert-butyl. Phenyl) sulfide, ditridecyl-3,3′-thiodipropionate, dilauryl-3,3′-thiodipropionate, dimyristyl-3,3′-thiodipropionate, distearyl-3,3′-thiodipro Pionate, lauryl / stearyl thiodipropionate, 4,4'-thiobis (6-tert-butyl-m-cresol), 2,2'-thiobis (6-tert-butyl-p-cresol), distearyl- Disulfide is mentioned.

  Examples of the ultraviolet absorber include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone). 2-hydroxybenzophenones such as 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3,5 -Dicumylphenyl) benzotriazole, 2,2'-methylenebis (4-th Octyl-6-benzotriazolylphenol), polyethylene glycol ester of 2- (2-hydroxy-3-tert-butyl-5-carboxyphenyl) benzotriazole, 2- [2-hydroxy-3- (2-acryloyloxy) Ethyl) -5-methylphenyl] benzotriazole, 2- [2-hydroxy-3- (2-methacryloyloxyethyl) -5-tert-butylphenyl] benzotriazole, 2- [2-hydroxy-3- (2- Methacryloyloxyethyl) -5-tert-octylphenyl] benzotriazole, 2- [2-hydroxy-3- (2-methacryloyloxyethyl) -5-tert-butylphenyl] -5-chlorobenzotriazole, 2- [2 -Hydroxy-5- (2-methacryloyloxyethyl) phenyl] benzene Zotriazole, 2- [2-hydroxy-3-tert-butyl-5- (2-methacryloyloxyethyl) phenyl] benzotriazole, 2- [2-hydroxy-3-tert-amyl-5- (2-methacryloyloxy) Ethyl) phenyl] benzotriazole, 2- [2-hydroxy-3-tert-butyl-5- (3-methacryloyloxypropyl) phenyl] -5-chlorobenzotriazole, 2- [2-hydroxy-4- (2- Methacryloyloxymethyl) phenyl] benzotriazole, 2- [2-hydroxy-4- (3-methacryloyloxy-2-hydroxypropyl) phenyl] benzotriazole, 2- [2-hydroxy-4- (3-methacryloyloxypropyl) 2- (2-hydroxypheny) such as phenyl] benzotriazole B) benzotriazoles; 2- (2-hydroxy-4-methoxyphenyl) -4,6-diphenyl-1,3,5-triazine, 2- (2-hydroxy-4-hexyloxyphenyl) -4,6 -Diphenyl-1,3,5-triazine, 2- (2-hydroxy-4-octoxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- [ 2-hydroxy-4- (3-C12-13 mixed alkoxy-2-hydroxypropoxy) phenyl] -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- [2- Hydroxy-4- (2-acryloyloxyethoxy) phenyl] -4,6-bis (4-methylphenyl) -1,3,5-triazine, 2- (2,4-dihydroxy-3-allylphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2,4,6-tris (2-hydroxy-3-methyl-4-hexyloxyphenyl) -1,3 2- (2-hydroxyphenyl) -4,6-diaryl-1,3,5-triazines such as 5-triazine; phenyl salicylate, resorcinol monobenzoate, 2,4-ditert-butylphenyl-3,5- Di-tert-butyl-4-hydroxybenzoate, octyl (3,5-di-tert-butyl-4-hydroxy) benzoate, dodecyl (3,5-di-tert-butyl-4-hydroxy) benzoate, tetradecyl (3,5- Ditert-butyl-4-hydroxy) benzoate, hexadecyl (3,5-ditert-butyl-4-hydroxy) benzoate, octadecyl (3,5-ditert Benzoates such as butyl-4-hydroxy) benzoate, behenyl (3,5-ditert-butyl-4-hydroxy) benzoate; 2-ethyl-2′-ethoxyoxanilide, 2-ethoxy-4′-dodecyloxy Substituted oxanilides such as zanilides; cyanoacrylates such as ethyl-α-cyano-β, β-diphenyl acrylate and methyl-2-cyano-3-methyl-3- (p-methoxyphenyl) acrylate; various metal salts Or metal chelates, especially nickel, chromium salts, or chelates.

  Examples of the flame retardant include aromatic phosphoric acid such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, cresyl-2,6-xylenyl phosphate, and resorcinol bis (diphenyl phosphate). Phosphonates such as esters, divinyl phenylphosphonate, diallyl phenylphosphonate and phenylphosphonic acid (1-butenyl), phenyl diphenylphosphinate, methyl diphenylphosphinate, 9,10-dihydro-9-oxa-10-phospha Phosphonic acid esters such as phenanthrene-10-oxide derivatives, phosphazene compounds such as bis (2-allylphenoxy) phosphazene and dicresyl phosphazene, melamine phosphate, melamine pyrophosphate, Melamine phosphate, melam polyphosphate, ammonium polyphosphate, phosphorus-containing vinylbenzyl compounds and phosphorus-based flame retardants such as red phosphorus, metal hydroxides such as magnesium hydroxide and aluminum hydroxide, brominated bisphenol A type epoxy resin, bromine Phenol novolac epoxy resin, hexabromobenzene, pentabromotoluene, ethylenebis (pentabromophenyl), ethylenebistetrabromophthalimide, 1,2-dibromo-4- (1,2-dibromoethyl) cyclohexane, tetrabromocyclo Octane, hexabromocyclododecane, bis (tribromophenoxy) ethane, brominated polyphenylene ether, brominated polystyrene and 2,4,6-tris (tribromophenoxy) -1,3,5-triazine, tribromophenyl Reimido, tribromophenyl acrylate, tribromophenyl methacrylate, tetrabromobisphenol A type dimethacrylate, pentabromobenzyl acrylate, and include brominated flame retardants such as brominated styrene and the like.

（式中Ｒ^２６は、分岐鎖を有してもよく、ヒドロキシル基及びシクロアルキル基から選ばれる１種以上の置換基を有してもよい炭素原子数１〜３０の脂肪族基を表し、Ｍ^２は、金属原子を表し、ｎは、１〜４の整数であって、Ｍ^２の金属原子の価数を表す）で表される化合物が挙げられる。 Examples of the aliphatic carboxylic acid metal salt include the following general formula (15),

(In the formula, R ²⁶ represents an aliphatic group having 1 to 30 carbon atoms which may have a branched chain and may have one or more substituents selected from a hydroxyl group and a cycloalkyl group; M ² represents a metal atom, and n is an integer of 1 to 4, and represents a valence of the metal atom of M ² ).

In the general formula (15), R ²⁶ is an aliphatic group having 1 to 30 carbon atoms, may have a hydroxyl group, may have a cycloalkyl group, or may have a branch. Examples of the aliphatic group include hydrocarbon groups such as an alkyl group, an alkenyl group, and an alkyl group into which two or more unsaturated bonds are introduced. Specific examples of the aliphatic carboxylic acid represented by the general formula (15) include acetic acid, propionic acid, lactic acid, butyric acid, valeric acid, caproic acid, 2-ethylhexanoic acid, enanthic acid, pelargonic acid, caprylic acid, Neodecylic acid, undecylic acid, lauric acid, tridecylic acid, myristic acid, pentadecylic acid, palmitic acid, margaric acid, stearic acid, nonadecylic acid, arachidic acid, behenic acid, lignoceric acid, serotic acid, montanic acid, melicic acid, succinic acid , Lindelic acid, Tuzuic acid, Palmitoleic acid, Myristoleic acid, Petroselinic acid, Oleic acid, Elaidic acid, Vaccenoic acid, Linoleic acid, Linoleic acid, Gamma-linolenic acid, Linolenic acid, Ricinoleic acid, Naphthenic acid, Abietic acid , Hydroxyacetic acid, lactic acid, β-hydroxypropionic acid, 2-methyl Examples include ru-β-hydroxypropionic acid, α-hydroxybutyric acid, β-hydroxybutyric acid, γ-hydroxybutyric acid, monomethylolpropionic acid, dimethylolpropionic acid, and 12-hydroxystearic acid. Among these, those having an aliphatic group having 12 to 22 carbon atoms are preferable because the effect of improving the physical properties of the olefin resin is increased, and myristic acid, stearic acid, 12-hydroxystearic acid, and the like are particularly preferable.

In the general formula (15), the metal atom represented by M ² includes alkali metal, magnesium, calcium, strontium, barium, titanium, manganese, iron, zinc, silicon, zirconium, yttrium, barium, hafnium, and the like. It is done. Among these, alkali metals such as sodium, lithium, and potassium are preferable, and sodium and lithium are particularly preferably used because the crystallization temperature of the olefin resin is improved.

（式中、ａおよびｂは各々下記式で表される条件を満たす数を表し、ｕは０または正の数を表す。
０≦ｂ／ａ＜１０，２≦ａ＋ｂ≦２０である。）

（式中、Ａ^ｑ−は、ｑ価のアニオンを表し、ｕは０または正の数を表す。）
上記ハイドロタルサイトは、結晶水を脱水したものであってもよく、ステアリン酸等の高級脂肪酸、オレイン酸アルカリ金属塩等の高級脂肪酸金属塩、ドデシルベンゼンスルホン酸アルカリ金属塩等の有機スルホン酸金属塩、高級脂肪酸アミド、高級脂肪酸エステル又はワックス等で被覆されたものであってもよい。 The hydrotalcite is a complex salt compound composed of magnesium, aluminum, hydroxyl group, carbonate group and arbitrary crystal water known as a natural product or synthetic product. Specifically, the hydrotalcite represented by following formula (16) is mentioned, for example. Further, Al-Li hydrotalcite represented by the formula (17) can also be used.

(In the formula, a and b each represent a number satisfying the condition represented by the following formula, and u represents 0 or a positive number.
0 ≦ b / a <10, 2 ≦ a + b ≦ 20. )

(In the formula, A ^q- represents a q-valent anion, and u represents 0 or a positive number.)
The hydrotalcite may be obtained by dehydrating crystal water, higher fatty acid such as stearic acid, higher fatty acid metal salt such as alkali metal oleate, organic sulfonic acid metal such as alkali metal dodecylbenzenesulfonate. It may be coated with a salt, higher fatty acid amide, higher fatty acid ester or wax.

  The hydrotalcite may be a natural product or a synthetic product. As methods for synthesizing the compounds, Japanese Patent Publication No. 46-2280, Japanese Patent Publication No. 50-30039, Japanese Patent Publication No. 51-29129, Japanese Patent Publication No. 3-36839, Japanese Patent Publication No. 61-174270, Known methods described in, for example, Kaihei No. 5-179052. Moreover, the said hydrotalcite can be used without being restrict | limited to the crystal structure, crystal grain, etc.

  When a metal salt of hydrotalcite is used, lithium salts and sodium salts are preferably used because a molded article having good transparency can be obtained.

  Examples of the filler include talc, mica, calcium carbonate, calcium oxide, calcium hydroxide, magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium sulfate, aluminum hydroxide, barium sulfate, glass powder, glass fiber, clay, Dolomite, mica, silica, alumina, potassium titanate whisker, wollastonite, fibrous magnesium oxysulfate and the like are preferable. Among these fillers, those having an average particle diameter (spherical or flat) or an average fiber diameter (needle or fiber) of 5 μm or less are preferable.

  The above-mentioned lubricant is added for the purpose of imparting lubricity to the surface of the molded body and enhancing the effect of preventing damage. Examples of the lubricant include unsaturated fatty acid amides such as oleic acid amide and erucic acid amide; saturated fatty acid amides such as behenic acid amide and stearic acid amide. These may be used alone or in combination of two or more.

  The antistatic agent is added for the purpose of reducing the chargeability of the molded product and preventing dust from adhering due to charging. Examples of the antistatic agent include cationic, anionic and nonionic. Preferable examples include polyoxyethylene alkylamine and polyoxyethylene alkylamide. These may be used alone or in combination of two or more.

  The range of the preferable usage-amount of the additive used for the olefin resin composition obtained with the manufacturing method of this invention is a range from which the improvement of an addition effect is not seen from the quantity by which an effect is expressed. The amount of each additive used with respect to 100 parts by mass of the olefin polymer is 0.1 to 20 parts by mass of the plasticizer, 1 to 50 parts by mass of the filler, 0.001 to 1 part by mass of the surface treatment agent, and phenolic. 0.001-10 parts by mass of an antioxidant, 0.001-10 parts by mass of a phosphorus-based antioxidant, 0.001-10 parts by mass of a thioether-based antioxidant, 0.001-5 parts by mass of an ultraviolet absorber, The hindered amine compound is 0.01 to 1 part by mass, the flame retardant is 1 to 50 parts by mass, the aliphatic carboxylic acid metal salt is 0.001 to 10 parts by mass, the hydrotalcite is 0.001 to 5 parts by mass, and the lubricant. However, it is preferable that 0.03-2 mass parts and an antistatic agent are 0.03-2 mass parts. In addition, the usage-amount shown above shows the final usage-amount of each additive in the molded article which shape | molded the olefin resin composition manufactured with the manufacturing method of this invention.

  Since the molded product formed by molding the olefin resin composition produced by the method for producing an olefin resin composition of the present invention has excellent rigidity, it can be used in various industries such as various products for living materials, automobile parts and household appliance parts. It has practical performance as a molding material for parts and the like, and is particularly suitable as a molding material for interior and exterior parts for automobiles, especially trim parts, pillars, door trims, instrument panels, consoles and the like. That is, the method for producing an olefin resin composition of the present invention is suitable as a method for producing an olefin resin composition for living materials, a method for producing an olefin resin composition for automobile interior and exterior members, and a method for producing an olefin resin composition for interior parts. It is.

  EXAMPLES Hereinafter, although a manufacture example, an Example, and a comparative example are given and this invention is demonstrated further more concretely, this invention is not restrict | limited at all by the following examples.

(Preparation of solid catalyst component)
Anhydrous magnesium chloride (4.76 g, 50 mmol), decane (25 ml) and 2-ethylhexyl alcohol (23.4 ml, 150 mmol) were added, and the mixture was reacted at 130 ° C. for 2 hours to obtain a homogeneous solution. 11 g (7.5 mmol) was added and stirred for 1 hour while maintaining 130 ° C. to dissolve phthalic anhydride in the homogeneous solution. Next, the homogeneous solution was cooled to room temperature and charged dropwise into 200 ml (1.8 mol) of titanium tetrachloride maintained at −20 ° C. over 1 hour. After completion of charging, the temperature was raised to 110 ° C. over 4 hours. After reaching 110 ° C., 2.68 ml (12.5 mmol) of dibutyl phthalate was added, and the mixture was stirred and reacted for 2 hours while maintaining 110 ° C. After completion of the reaction, the residue was collected by hot filtration, and the residue was resuspended in 200 ml of titanium tetrachloride, and then heated to 110 ° C. and reacted for 2 hours. After completion of the reaction, the residue was again collected by hot filtration, and thoroughly washed with decane and hexane at 110 ° C. until no titanium compound was detected in the washing solution to obtain a solid catalyst component. A part of the solid catalyst component was sampled and dried, and the catalyst composition was analyzed. As a result, it was found that titanium 3.1% by weight, chlorine 56.0% by weight, magnesium 17.0% by weight and dibutyl phthalate 20.9% by weight. there were.

(Preliminary polymerization)
In order to adjust the blending amount of the nucleating agent in the olefin polymer, the polymerization activity when the nucleating agent solution was not added was determined. The polymerization conditions were as follows.

(Polymerization conditions)
To an autoclave purged with nitrogen, 600 ml of heptane, 303 mg of triethylaluminum, 0.26 mmol of dicyclopentyldimethoxysilane and a heptane slurry of the solid catalyst component produced by the above method (0.013 mmol in terms of Ti) were sequentially added and stirred. The inside of the autoclave was replaced with a propylene atmosphere, a pressure of 1 kgf / cm ² G was applied with propylene, and prepolymerization was performed at 50 ° C. for 5 minutes. After purging propylene, 340 ml (23 ° C.) of hydrogen was blown, the temperature was raised to 70 ° C., a pressure of 6 kgf / cm ² G was applied with propylene in the autoclave, and a polymerization reaction was performed at 70 ° C. for 1 hour. After replacing the system with nitrogen gas, 5 ml of ethanol was added at 40 ° C. to stop the polymerization reaction, and then the solvent was removed under reduced pressure at 50 ° C. Then, the polymer was dried at 40 ° C. in vacuum for 5 hours. A polymer was obtained. The polymerization activity of the obtained polymer was 8.0 kg per 1 g of the catalyst.

(Preparation of solution of nucleating agent component)
Prepare a solution of the nucleating agent component with a nucleating agent component of 20 mg / ml by adding heptane to the nucleating agent component to the flask purged with nitrogen and adding dropwise heptane to the nucleating agent component with stirring. did. P-2 is one of the specific examples of the nucleating agent component exemplified above.

（１）化合物１：下記構造の化合物

（２）Ｎａ−Ｂｚ：安息香酸ナトリウム塩

(1) Compound 1: Compound having the following structure

(2) Na-Bz: benzoic acid sodium salt

(polymerization)
Under the pre-polymerization conditions, immediately before adding the heptane slurry of the solid catalyst component, 100 parts by mass of the olefin polymer obtained by polymerization is added to the nucleating agent component solution shown in Table 2, and in the autoclave Polymerization was carried out under the same conditions as the above prepolymerization, except that the amount of heptane was added so that the total amount of the solution was 600 ml.
However, when the mixture of the nucleating agent component, the organic solvent, and the organoaluminum compound in Production Example 1-3 was supplied, the polymerization activity was low, and the amount of olefin polymer necessary for the molding process could not be obtained.

(Molding)
Additives were added and mixed in the blending amounts shown in Table 2 with respect to 100 parts by mass of the obtained olefin polymer, and 230 ° C. with a small laboratory injection molding machine (Compounder 15, Injection molder 12 manufactured by DSM Xplore). And kneaded to obtain strands and pelletized. In addition, using the above small laboratory injection molding machine, injection molding was performed under conditions of an injection temperature of 230 ° C. and a mold temperature of 40 ° C., and a bending test piece of 80 mm × 10 mm × 4 mm and a flat plate shape of 50 mm × 50 mm × 2 mm A specimen was obtained.
In addition, the olefin polymer of Comparative Examples 1-4 was evaluated using the olefin polymer obtained by the said prepolymerization.

(Evaluation)
The following evaluation was performed using the bending test piece obtained by said shaping | molding process, and a flat test piece. These results are shown in Table 2.

(Flexural modulus)
The obtained bending test piece was allowed to stand for 48 hours or more immediately after injection molding in a thermostatic bath having a bath internal temperature of 23 ° C., and then subjected to ISO 178 with a bending tester (manufactured by Shimadzu Corporation; AG-IS). The flexural modulus (MPa) was measured according to These results are shown in Table 1, respectively.

(appearance)
The obtained flat plate test piece was left after standing for 48 hours or more in a thermostatic bath whose temperature in the bath was 23 ° C. immediately after injection molding, and as a result of visually checking the surface of the test piece, there was no abnormality. The case where ○, a flow mark, a foreign object, etc. were confirmed was evaluated as x. These results are shown in Table 1, respectively.

（３）化合物２：ソルビトール核剤（Ｍｉｌｌｉｋｅｎ社商品名Ｍｉｌｌａｄ ３９８８）
（４）ＡＯ−１：テトラキス［メチレン−３−（３’，５’−ジ−第三ブチル−４’−ヒドロキシフェニル）プロピオネート］メタン
（５）ＡＯ−２：トリス（２，４−ジ第三ブチルフェニル）ホスファイト
（６）ＤＨＴ−４Ａ：協和化学工業株式会社製ハイドロタルサイト商品名
（７）Ｎａ−Ｓｔ：ステアリン酸ナトリウム塩

(3) Compound 2: Sorbitol nucleating agent (trade name Millad 3988, manufactured by Milliken)
(4) AO-1: Tetrakis [methylene-3- (3 ′, 5′-di-tert-butyl-4′-hydroxyphenyl) propionate] methane (5) AO-2: Tris (2,4-dithane Tributylphenyl) phosphite (6) DHT-4A: Hydrotalcite trade name, manufactured by Kyowa Chemical Industry Co., Ltd. (7) Na-St: Sodium stearate

From Comparative Example 2 and Comparative Example 3 in Table 2, when the nucleating agent component was not supplied during the polymerization of the olefin polymer, the effect of improving the rigidity was poor, and an abnormality was confirmed in the appearance of the molded product.
On the other hand, from Examples 1 and 2, the olefin resin composition produced by the method of the present invention is superior to the nucleating agent-unblended composition of Comparative Example 1 in the effect of improving rigidity, and the appearance of the molded product is also good. It was good. As described above, by molding using the olefin polymer obtained by the production method of the present invention, a molded product having excellent rigidity can be obtained, and the thickness and weight can be reduced.

Claims (3)

A method for producing an olefin resin composition capable of obtaining a molded article having a flexural modulus of 1600 MPa or more measured according to ISO 178, wherein a nucleating agent component is dissolved in an organic aluminum compound or an organic aluminum compound and an organic solvent. Is added before or during the polymerization of the olefin monomer such that the nucleating agent component is 0.001 to 0.5 parts by mass with respect to 100 parts by mass of the olefin polymer obtained by polymerizing the olefin monomer. And a step of polymerizing the olefin monomer ,
The nucleating agent is represented by the following general formula (1) or (3),

(Wherein R ^{1 to} R ⁴ each independently represents a hydrogen atom or an alkyl group having 1 to 9 carbon atoms which may have a branch, R ⁵ represents a hydrogen atom or a methyl group, and m represents 1 or 2 and when m is 1, M ¹ represents a hydrogen atom or an alkali metal atom, and when m is 2, M ¹ represents a group 2 element, Al (OH) or Zn.)

(In the formula, X ¹ is an alkylene group having 1 to 5 carbon atoms which may have a branch, and R ^{7 to} R ¹⁰ may each independently have a halogen atom or a substituent. Represents one selected from the group consisting of an alkyl group having 1 to 4 carbon atoms which may have a branch and an alkoxy group having 1 to 4 carbon atoms which may be substituted and which may have a branch. , P, q, r and s are each independently a compound represented by an integer of 0 to 3 (provided that p and s are not 0).
A method for producing an olefin resin composition, wherein a Ziegler-Natta catalyst comprising a titanium-containing solid transition metal component and an organometallic component is used in the step of polymerizing the olefin monomer . Manufacturing method of the organic aluminum compound, an olefin resin composition according to claim 1 wherein the trialkyl aluminum. The method for producing an olefin resin composition according to claim 1 or 2 , wherein the organic solvent is selected from an aliphatic hydrocarbon compound and an aromatic hydrocarbon compound.