Resin composition and molded article

Abstract

To obtain a resin composition having high fluidity and excellent abrasion resistance. 【Solution means】It contains component (I) and component (II), Component (I) is A polymer block (A) mainly composed of vinyl aromatic monomer units, A polymer block (B) mainly composed of conjugated diene monomer units and / or a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units, and is a conjugated diene copolymer satisfying conditions (i) and (ii). Component (II) is a resin composition that is an olefin resin. <Condition (i)> The chromatogram obtained by GPC measurement has at least two peaks. <Condition (ii)> The main dispersion peak of tanδ in the viscoelastic spectrum obtained under the conditions of a strain of 0.5%, a frequency of 1 Hz, and a heating rate of 3 °C / min has at least one within -30 °C or more and 50 °C or less, and the temperature range where tanδ is 0.4 or more is -30 to 60 °C. When the lowest temperature is a °C and the highest temperature is b °C, b - a is 40 or more.

Description

[Technical Field] 【0001】 The present invention relates to resin compositions and molded articles. [Background technology] 【0002】 Traditionally, resin compositions mainly composed of polyolefin resins and conjugated diene copolymers have been widely used in industrial products such as machine parts and automobile parts, as well as household goods and various containers, due to their generally excellent mechanical properties. In recent years, with the increasing demands for performance, particularly in automotive interior materials, resin compositions are required to have high abrasion resistance and high mechanical properties. 【0003】 In accordance with the above-mentioned performance requirements, Patent Document 1 discloses a resin composition containing a conjugated diene copolymer having a main dispersion peak of tanδ at or near room temperature, which is a material with excellent wear resistance. [Prior art documents] [Patent Documents] 【0004】 [Patent Document 1] International Publication No. 2023 / 145369 [Overview of the Initiative] [Problems that the invention aims to solve] 【0005】 However, the resin composition containing a specific conjugated diene copolymer disclosed in Patent Document 1 still has the problem that there is room for improvement in terms of abrasion resistance. 【0006】 Therefore, the present invention aims to provide a resin composition and molded article that exhibit excellent fluidity and wear resistance. [Means for solving the problem] 【0007】 As a result of diligent research to solve the problems of the prior art described above, the present inventors have found that a resin composition containing a conjugated diene copolymer having a predetermined structure and physical properties exhibits high fluidity and excellent abrasion resistance, thus completing the present invention. In other words, the present invention is as follows. 【0008】 [1] A resin composition containing component (I) and component (II), The aforementioned component (I) is, A polymer block (A) mainly composed of vinyl aromatic monomer units, The polymer comprises a polymer block (B) mainly composed of conjugated diene monomer units, and / or a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units. A conjugated diene copolymer that satisfies the following conditions (i) and (ii): The aforementioned component (II) is an olefin resin. Resin composition. <Condition (i)> The chromatogram obtained by gel permeation chromatography (GPC) measurement has at least two peaks. <Condition (ii)> In the viscoelastic spectrum obtained under conditions of strain 0.5%, frequency 1 Hz, and heating rate 3°C / min, there is at least one main dispersion peak of tanδ between -30°C and 50°C, and the temperature range in which tanδ is 0.4 or higher is -30 to 60°C, where ba is 40 or higher, with a°C being the lowest temperature and b°C being the highest temperature. [2] The aforementioned component (II) is At least one selected from the group consisting of at least one polypropylene resin and at least one ethylene-α-olefin copolymer. The resin composition described in [1] above. [3] Component (III): Further contains a crosslinking agent. The resin composition described in [1] or [2] above. [4] where the component (I) is a hydrogenated conjugated diene copolymer, The resin composition according to any one of [1] to [3]. [5] The component (I) is In the chromatogram obtained by GPC measurement, the ratio of the number average molecular weight (MX) of the component with the largest number average molecular weight (component (I-X)) to the number average molecular weight (MN) of the component with the smallest number average molecular weight (component (I-N)) is MN / MX < 0.25, and 1000 ≤ MN ≤ 40000, and it is a conjugated diene copolymer, The resin composition according to any one of [1] to [4]. [6] The component (I) has a random polymer block (C) of the vinyl aromatic monomer unit and the conjugated diene monomer unit, The component (I-N) has at least one random polymer block (C) of the vinyl aromatic monomer unit and the conjugated diene monomer unit, The resin composition according to [5]. [7] The component (I-N) has at least one polymer block (A) mainly composed of vinyl aromatic monomer units, The resin composition according to [5] or [6]. [8] The component (I) has a random polymer block (C) of the vinyl aromatic monomer unit and the conjugated diene monomer unit, The component (I-X) has at least two random polymer blocks (C) of the vinyl aromatic monomer unit and the conjugated diene monomer unit, The resin composition according to any one of [5] to [7]. [9] The resin composition according to any one of [6] to [8], wherein the amount of the vinyl aromatic monomer in the random polymer block (C) of the component (I-N) is 50% by mass or less.

[10] The resin composition according to any one of [6] to [9], wherein the amount of the vinyl aromatic monomer in the random polymer block (C) of the component (I-N) is 40% by mass or less. 〔11〕 The number average molecular weight of the component (I-N) is less than 30,000, The resin composition according to any one of the above [5] to

[10] . 〔12〕 The number average molecular weight of the component (I-X) is less than 300,000, The resin composition according to any one of the above [5] to

[11] . 〔13〕 The number average molecular weight of the component (I-X) is more than 150,000, The resin composition according to any one of the above [5] to

[12] . 〔14〕 A molded body of the resin composition according to any one of the above [1] to

[13] . 【Advantages of the Invention】 【0009】 According to the present invention, a resin composition and a molded body having high fluidity and excellent wear resistance can be obtained. 【Modes for Carrying Out the Invention】 【0010】 Hereinafter, modes for carrying out the present invention (hereinafter referred to as "the present embodiment") will be described in detail. Note that the following present embodiment is an exemplification for explaining the present invention, and is not intended to limit the present invention to the following contents. The present invention can be variously modified and implemented within the scope of its gist. 【0011】 In addition, the parameters described in this specification can be numerical ranges obtained by arbitrarily combining any of the lower limit values and upper limit values of the exemplified numerical ranges and the numerical ranges described as preferable etc. (including more preferable numerical ranges etc.). 【0012】 〔Resin Composition〕 The resin composition of the present embodiment, contains component (I) and component (II). The component (I), is a polymer block (A) mainly composed of vinyl aromatic monomer units, The polymer comprises a polymer block (B) mainly composed of conjugated diene monomer units, and / or a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units. A conjugated diene copolymer that satisfies the following conditions (i) and (ii) (hereinafter referred to as conjugated diene copolymer) It is a body (sometimes written as (I)). The aforementioned component (II) is an olefin resin. <Condition (i)> The chromatogram obtained by gel permeation chromatography (GPC) measurement has at least two peaks. <Condition (ii)> The viscoelastic spectrum obtained under conditions of strain 0.5%, frequency 1 Hz, and heating rate 3°C / min has at least one main dispersion peak of tanδ between -30°C and 50°C, and the temperature range in which tanδ is 0.4 or higher is -30 to 60°C, where a°C is the lowest temperature and b°C is the highest temperature, and ba is 40 or higher. In this specification, ba may be described as the numerical value of the width of the temperature range. 【0013】 Here, the "main dispersion peak of tanδ" refers to the motion of the main chain in the molecular structure, and is the maximum value of the tanδ curve before melting. According to the above configuration, a resin composition having high fluidity and excellent wear resistance can be provided. 【0014】 (Component (I): Conjugated diene copolymer) The conjugated diene copolymer (I) used in the resin composition of this embodiment is a conjugated diene copolymer having a polymer block (A) mainly composed of vinyl aromatic monomer units (hereinafter sometimes referred to as polymer block (A)), a polymer block (B) mainly composed of units derived from a conjugated diene compound (hereinafter sometimes referred to as polymer block (B)), and / or a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units (hereinafter sometimes referred to as a random polymer block). 【0015】 A conjugated diene monomer unit is a unit in a polymer derived from a conjugated diene compound, and a conjugated diene compound is a diolefin having one pair of conjugated double bonds. Examples of conjugated diene compounds, but not limited to the following, include 1,3-butadiene, 2-methyl-1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 2-methyl-1,3-pentadiene, and 1,3-hexadiene. Among these, 1,3-butadiene and isoprene are preferred, and 1,3-butadiene is more preferred. The conjugated diene compounds may be used individually or in combination of two or more. 【0016】 A vinyl aromatic monomer unit is a unit in a polymer derived from a vinyl aromatic compound, and a vinyl aromatic compound is an aromatic compound having a vinyl bond. Examples of vinyl aromatic compounds, though not limited to the following, include styrene, α-methylstyrene, p-methylstyrene, divinylbenzene, 1,1-diphenylethylene, N,N-dimethyl-p-aminoethylstyrene, and N,N-diethyl-p-aminoethylstyrene. Among these, styrene is preferred. Vinyl aromatic compounds may be used individually or in combination of two or more. 【0017】 In this specification, the phrase "polymer block (A) mainly consists of vinyl aromatic monomer units" means that the content of units derived from vinyl aromatic compounds is greater than 80% by mass of the total amount of polymer block (A). The content of units derived from vinyl aromatic compounds in polymer block (A) is preferably 85% by mass or more, more preferably 90% by mass or more, and even more preferably 100% by mass, relative to the total amount of polymer block (A) (no other monomers are intentionally added). 【0018】 In this specification, the phrase "polymer block (B) mainly consists of conjugated diene monomer units" means that the content of units derived from conjugated diene monomer units is greater than 80% by mass of the total amount of polymer block (B). The content of units derived from the conjugated diene compound in polymer block (B) is preferably 85% by mass or more, more preferably 90% by mass or more, and even more preferably 100% by mass, relative to the total amount of polymer block (B) (no other monomers are intentionally added). 【0019】 The ratio of vinyl aromatic monomer units to conjugated diene monomer units in random polymer block (C) is vinyl aromatic monomer units / conjugated diene monomer units = 80 / 20 to 20 / 80, preferably 80 / 20 to 25 / 75, and more preferably 80 / 20 to 30 / 70. This allows random polymer block (C) to be clearly distinguished from polymer block (A) and polymer block (B). The fact that the amount of vinyl aromatic monomer units in the random polymer block (C) is 20% by mass or more allows for the control of the main dispersion peak of tanδ to -30°C or higher, as described later under condition (ii). It is located there. 【0020】 The conjugated diene copolymer (I) preferably contains 5% by mass or more of polymer blocks (A), more preferably 7% by mass or more, and more preferably 10% by mass or more, from the viewpoint of ease of handling. The content of polymer blocks (A) in the conjugated diene copolymer (I) can be determined, for example, by using the mass of vinyl aromatic hydrocarbon block components obtained by oxidative decomposition of the copolymer before hydrogenation with tertiary butyl hydroperoxide using osmium tetroxide as a catalyst (as described in IMKOLTHOFF, et al., J. Polym. Sci. 1, 429 (1946)), from the following formula. Polymer block (A) content (mass%) = (mass of blocks mainly consisting of units derived from vinyl aromatic compounds in the conjugated diene copolymer before hydrogenation / mass of the conjugated diene copolymer before hydrogenation) × 100 【0021】 The conjugated diene copolymer (I) preferably contains 5 to 95% by mass of vinyl aromatic monomer units, from the viewpoint of handling and flexibility. The conjugated diene copolymer (I) preferably contains 5 to 95% by mass of conjugated diene monomer units, from the viewpoint of flexibility. The conjugated diene copolymer (I) preferably contains 5 to 95% by mass of polymer blocks (B) from the viewpoint of flexibility. The conjugated diene copolymer (I) preferably contains 5 to 95% by mass of random polymer blocks (C) from the viewpoint of wear resistance. 【0022】 <Condition (i)> The conjugated diene copolymer (I) used in the resin composition of this embodiment has at least two peaks in the chromatogram obtained by gel permeation chromatography (GPC) measurement. Having two or more peaks means that the molecule contains components with different molecular weights. As a result, the temperature range in which tanδ is 0.4 or higher, as described later, tends to allow control of ba to 40 or higher, where a is the minimum temperature and b is the maximum temperature, within the range of -30 to 60°C. 【0023】 As described above, in the temperature range where tanδ is 0.4 or higher, from -30 to 60°C, with the lowest temperature being a°C and the highest temperature being b°C, it is preferable that the conjugated diene copolymer (I) has a ratio of MN / MX < 0.25 to 1000 ≤ MN ≤ 40000 in the chromatogram obtained by GPC measurement, more preferably MN / MX < 0.24, and even more preferably MN / MX < 0.23. 【0024】 In recent years, the use of resins for large parts, particularly automotive parts, has been explored for weight reduction, and high fluidity is required for resin compositions. From the viewpoint of high fluidity of the resin composition, the number average molecular weight (MN) of the component (IN) is more preferably 1000 ≤ MN < 30000, even more preferably 1000 ≤ MN ≤ 28000, and even more preferably 1000 ≤ MN ≤ 25000. When MN is less than 30000, the resin composition of this embodiment tends to obtain high fluidity. Similarly, the number-average molecular weight (MX) of component (IX) is preferably less than 300,000, more preferably 280,000 or less, and even more preferably 250,000 or less. When the number-average molecular weight of component (IX) is less than 300,000, the resin composition of this embodiment tends to have high fluidity. The lower limit of MX is preferably more than 150,000, more preferably 170,000 or more, and even more preferably 180,000 or more, from the viewpoint of handling. When the number-average molecular weight (MX) of component (IX) is more than 150,000, blocking during storage can be prevented, and the handling tends to be good. GPC measurement and number-average molecular weight calculation can be performed using the method described in the above-mentioned examples. Furthermore, from the viewpoint of fluidity, the mass ratio of component (IX) to component (IN) is preferably (IN) / (IX) = 5 / 95 to 60 / 40, more preferably (IN) / (IX) = 10 / 90 to 60 / 40, and even more preferably (IN) / (IX) = 15 / 85 to 60 / 40. Fluidity tends to improve when component (IN) is 5% by mass or more, and handling tends to improve when component (IX) is 40% by mass or more. 【0025】 <Condition (ii)> The viscoelastic spectrum obtained under conditions of strain 0.5%, frequency 1 Hz, and heating rate 3°C / min has at least one main dispersion peak of tanδ between -30°C and 50°C, and the temperature range in which tanδ is 0.4 or higher is -30 to 60°C, where a°C is the lowest temperature and b°C is the highest temperature, and ba is 40 or higher. Preferably it is 37 or higher, and more preferably 35 or higher. 【0026】 In this specification, "tanδ peak temperature" refers to the temperature at which the principal dispersion peak of the tanδ curve in the viscoelastic spectrum is located. Furthermore, the "main dispersion peak of tanδ" refers to the maximum value of the tanδ curve before melting, which is the motion of the main chain in the molecular structure. 【0027】 The resin composition of this embodiment tends to have an excellent balance of mechanical properties, particularly low-temperature properties and wear resistance, because the conjugated diene copolymer (I) has at least one main dispersion peak of tanδ in its viscoelastic spectrum between -30°C and 50°C. Furthermore, the resin composition of this embodiment tends to have excellent wear resistance over a wide temperature range, because the temperature range in which tanδ is 0.4 or higher is -30 to 60°C, and when the lowest temperature is a°C and the highest temperature is b°C, ba is 40 or higher. 【0028】 The main dispersion peak of tanδ in the viscoelastic spectrum can be controlled by adjusting the ratio of vinyl aromatic monomer units to conjugated diene monomer units in the random polymer block (C) when the conjugated diene copolymer (I) contains the random polymer block (C), and can also be controlled by adjusting the amount of 1,2-vinyl bonds in the conjugated diene monomer units of component (I). 【0029】 When the conjugated diene copolymer (I) contains the random polymer block (C), it has at least one main dispersion peak of tanδ between -30°C and 50°C, and the temperature range in which tanδ is 0.4 or higher is -30°C to 60°C, where a°C is the lowest temperature and b°C is the highest temperature, and ba is 40 or higher. From this viewpoint, the ratio of vinyl aromatic monomer units to conjugated diene monomer units in the random polymer block (C) is preferably vinyl aromatic monomer units / conjugated diene monomer units = 10 / 90 to 90 / 10, more preferably 20 / 80 to 80 / 20, even more preferably 30 / 70 to 70 / 30, and even more preferably 40 / 60 to 60 / 40. 【0030】 The higher the amount of 1,2-vinyl bonds in the conjugated diene monomer unit of the conjugated diene copolymer (I), the higher the main dispersion peak temperature of tanδ tends to be. From the viewpoint of having at least one main dispersion peak of tanδ between -30°C and 50°C, and having a temperature range where tanδ is 0.4 or higher, where ba is 40 or higher when the lowest temperature is a°C and the highest temperature is b°C, the amount of 1,2-vinyl bond is preferably 35 mol% or more, more preferably 40 mol% or more, and even more preferably 45 mol% or more. Furthermore, the greater the amount of 1,2-vinyl bond in the conjugated diene monomer unit, the more fluidity tends to improve, and from this viewpoint, the amount is preferably 35 mol% or more, more preferably 40 mol% or more, and even more preferably 45 mol% or more. 【0031】 The amount of 1,2-vinyl bonds in the conjugated diene monomer units of the conjugated diene copolymer (I) can be controlled by adding modifiers such as polar compounds during polymerization of the conjugated diene copolymer, and can be calculated by the method described in the examples below. As the adjusting agent, for example, a tertiary amine compound or an ether compound can be added, and it is preferable to use a tertiary amine compound. Tertiary amine compounds have the general formula R 1 R 2 R 3 N (however R 1 , R 2 , R 3 It is a compound of a hydrocarbon group having 1 to 20 carbon atoms or a hydrocarbon group having a tertiary amino group. Examples of tertiary amine compounds include, but are not limited to, trimethylamine, triethylamine, tributylamine, N,N-dimethylaniline, N-ethylpiperidine, N-methylpyrrolidine, N,N,N',N'-tetramethylethylenediamine, N,N,N',N'-tetraethylethylenediamine, 1,2-dipiperidinoethane, trimethylaminoethylpiperazine, N,N,N',N”,N”-pentamethylethylenetriamine, and N,N'-dioctyl-p-phenylenediamine. The amount of the above-mentioned adjusting agent used is preferably 4 moles or less, more preferably 3 moles or less, and even more preferably 2.5 moles or less, per 1 mole of the polymerization initiator described later. 【0032】 The aforementioned component (I): conjugated diene copolymer may be a hydrogenated conjugated diene copolymer. Hydrogenation tends to improve the heat aging resistance of the resin composition of this embodiment. The hydrogenation rate of component (I) is preferably 30% or more, more preferably 50% or more, and even more preferably 70% or more. 【0033】 There are no particular limitations on the method for hydrogenating the conjugated diene copolymer, and conventionally known methods can be applied, but one example is a method using a hydrogenation catalyst. Examples of hydrogenation catalysts include any or a combination of the following: (1) a supported heterogeneous hydrogenation catalyst in which metals such as Ni, Pt, Pd, and Ru are supported on carbon, silica, alumina, diatomaceous earth, etc.; (2) a so-called Ziegler-type hydrogenation catalyst using organic acid salts of Ni, Co, Fe, Cr, etc. or transition metal salts such as acetylacetone salts and a reducing agent such as organoaluminum; and (3) a homogeneous hydrogenation catalyst such as a so-called organometallic complex, such as an organometallic compound of Ti, Ru, Rh, Zr, etc. Furthermore, as hydrogenation catalysts, for example, those described in Japanese Patent Publication No. 42-8704, Japanese Patent Publication No. 43-6636, Japanese Patent Publication No. 63-4841, Japanese Patent Publication No. 1-37970, Japanese Patent Publication No. 1-53851, Japanese Patent Publication No. 2-9041, etc., can be used. 【0034】 Preferred hydrogenation catalysts include titanocene compounds and / or reducing organometallic compounds. As the titanocene compound, the compounds described in Japanese Patent Publication No. Hei 8-109219 can be used. Examples of titanocene compounds include compounds having at least one ligand with a (substituted) cyclopentadienyl skeleton, an indenyl skeleton, or a fluorenyl skeleton, such as biscyclopentadienyl titanium dichloride and monopentamethylcyclopentadienyl titanium trichloride. The titanocene compound may contain one of the above skeletons alone or in combination of two. A preferred titanocene compound is bis(η5-cyclopentadienyl)titanium dichloride. Examples of reducing organometallic compounds include organolithium and other organoalkali metal compounds, organomagnesium compounds, organoaluminum compounds, organoboron compounds, and organozinc compounds. These may be used individually or in combination of two or more. 【0035】 The fluidity of the conjugated diene copolymer (I) and the resin composition of this embodiment can be controlled not only by adjusting the number-average molecular weight of the conjugated diene copolymer (I) as described above, but also by identifying the polymer blocks. Generally, conjugated diene copolymers having the random polymer blocks (C) tend to have higher fluidity than conjugated diene copolymers without the random polymer blocks (C). However, conjugated diene copolymers having the random polymer blocks (C) tend to have lower strength than conjugated diene copolymers without the random polymer blocks (C). Therefore, from the viewpoint of obtaining high fluidity, it is preferable that the component (IN) with the smallest number average molecular weight has at least one of the random polymer blocks (C), and from the viewpoint of improving the balance between strength and fluidity, it is preferable that the component (IN) has at least one of the random polymer blocks (C) and at least one of the polymer blocks (A). Furthermore, it is preferable that the component (IX) with the largest number average molecular weight has at least two of the random polymer blocks (C). 【0036】 In recent years, automotive interior materials have been required to be less hard from a tactile perspective. Conjugated diene copolymers tend to become less hard as the amount of vinyl aromatic monomer decreases. Therefore, in terms of balancing hardness, abrasion resistance, strength, and fluidity of the resin composition of this embodiment, the component (IN) of the conjugated diene copolymer (I) with the smallest number average molecular weight has the random polymer block (C), and the amount of vinyl aromatic monomer in the random polymer block (C) of component (IN) is preferably 50% by mass or less, more preferably 45% by mass or less, even more preferably 40% by mass or less, and even more preferably 35% by mass or less. The lower limit of the amount of vinyl aromatic monomer in the random polymer block (C) of component (IN) is preferably 5% by mass or more, more preferably 7% by mass or more, and even more preferably 10% by mass or more. 【0037】 Furthermore, from the viewpoint of obtaining high fluidity, it is preferable that component (IX) of component (I) also has the random polymer block (C), more preferably at least two of the random polymer blocks (C), and more preferably that it has at least one main dispersion peak of tanδ between -30°C and 50°C, and that the temperature range in which tanδ is 0.4 or higher is -30°C to 60°C, where the lowest temperature is a°C and the highest temperature is b°C, and ba is 40 or higher. From this viewpoint, it is preferable that the amount of vinyl aromatic monomer in the random polymer block (C) is 5 to 50% by mass, more preferably 5 to 40% by mass, even more preferably 5 to 35% by mass, particularly preferably 5 to 30% by mass, and most preferably 10 to 25% by mass. 【0038】 (Method for producing conjugated diene copolymers) The component (I) used in the resin composition of this embodiment: the conjugated diene copolymer (I) is obtained, for example, by anionic living polymerization using a polymerization initiator such as an organoalkali metal compound in a hydrocarbon solvent. 【0039】 Examples of hydrocarbon solvents include, but are not limited to, aliphatic hydrocarbons such as n-butane, isobutane, n-pentane, n-hexane, n-heptane, and n-octane; alicyclic hydrocarbons such as cyclohexane, cycloheptane, and methylcycloheptane; and aromatic hydrocarbons such as benzene, toluene, xylene, and ethylbenzene. 【0040】 Examples of polymerization initiators include organoalkali metal compounds such as aliphatic hydrocarbon alkali metal compounds, aromatic hydrocarbon alkali metal compounds, and organic aminoalkali metal compounds, which are generally known to exhibit anionic polymerization activity towards conjugated diene compounds and vinyl aromatic compounds. Examples of alkali metals include lithium, sodium, and potassium. Examples of organoalkali metal compounds include aliphatic and aromatic hydrocarbon lithium compounds having 1 to 20 carbon atoms, and include compounds containing one lithium atom per molecule, dilithium compounds containing multiple lithium atoms per molecule, trilithium compounds, and tetralithium compounds. Examples of organoalkali metal compounds include n-propyllithium, n-butyllithium, sec-butyllithium, tert-butyllithium, n-pentyllithium, n-hexyllithium, benzyllithium, phenyllithium, tolyllithium, reaction products of diisopropenylbenzene and sec-butyllithium, and reaction products of divinylbenzene, sec-butyllithium, and a small amount of 1,3-butadiene. Furthermore, 1-(t-butoxy)propyllithium disclosed in U.S. Patent No. 5,708,092, and lithium compounds in which one to several isoprene monomers are inserted to improve solubility; siloxy group-containing alkyllithiums such as 1-(t-butyldimethylsiloxy)hexyllithium disclosed in British Patent No. 2,241,239; and aminolithiums such as amino group-containing alkyllithiums, diisopropylamide lithium, and hexamethyldisilazidolithium disclosed in U.S. Patent No. 5,527,753 can also be used. 【0041】 Conventional known methods can be applied to polymerize conjugated diene copolymers using organoalkali metal compounds as polymerization initiators. 【0042】 The polymerization method may be batch polymerization, continuous polymerization, or a combination thereof. Batch polymerization is particularly suitable for obtaining copolymers with excellent heat resistance. The polymerization temperature is preferably 0°C to 180°C, and more preferably 30°C to 150°C. Alternatively, it may be within the above range. The polymerization time varies depending on the conditions, but is usually within 48 hours, and preferably 0.1 to 10 hours. Alternatively, it may be within the above range. 【0043】 Furthermore, an inert gas atmosphere such as nitrogen gas is preferred as the atmosphere for the polymerization system. The polymerization pressure should be set to a pressure range that can maintain the monomer and solvent in the liquid phase within the above temperature range, and is not particularly limited. The hydrogen pressure may also be within the above range. In addition, care must be taken to prevent the polymerization system from being contaminated with impurities that would deactivate the catalyst and living polymer, such as water, oxygen, and carbon dioxide. 【0044】 Furthermore, as a method for producing a conjugated diene copolymer that satisfies the above-mentioned condition (i), (1) (1) A method in which each component that forms two or more peaks in the chromatogram obtained by GPC measurement is solution polymerized and the solution containing the polymer is mixed; (2) A method in which each component is solvent-desolvated and catalyst-decatalyzed and then mixed; (3) A method in which the polymerization initiator is added in two stages during the polymerization reaction; (4) A method in which a modifier, coupling agent, or polymerization inhibitor such as an alcohol is added in an amount insufficient to the living ends during the polymerization reaction to stop the reaction at some of the living ends; (5) A method in which, after the polymerization reaction, an equimolar amount of a modifier or polymerization inhibitor such as an alcohol is added to the living ends to stop the reaction at all living ends, and then a polymerization initiator and monomer are newly added to the solution to carry out polymerization. 【0045】 In method (1) above, either a method in which the polymerization solutions of each component are mixed before the hydrogenation reaction and then the hydrogenation reaction is carried out, or a method in which each component is hydrogenated separately and then its respective solution is mixed, can be applied. Furthermore, the mixing ratio of each component can be controlled to the desired value by adjusting the concentration of each polymerization solution and the amount of each solution mixed. 【0046】 In the method described in (3) above, the mixing ratio of each component can be controlled to a desired value by adjusting the feed rate of the vinyl aromatic compound and the conjugated diene compound, the amount of polymerization initiator added in two stages, the timing of the second stage of polymerization initiator addition, and so on. 【0047】 In the method described in (4) above, the mixing ratio and structure of each component can be arbitrarily controlled by adjusting the feed rate and feed composition of the vinyl aromatic compound and the conjugated diene compound, the amount and timing of the addition of the modifier or polymerization inhibitor added during the process, etc. 【0048】 As described in methods (1), (3), (4), and (5) above, mixing each component that forms two or more peaks in the chromatogram obtained by GPC measurement before desolventing allows for a higher rate of desolventing and finishing processes. 【0049】 The methods described in (3) and (4) above allow for the simultaneous production of component (IX) with the largest number-average molecular weight and component (IN) with the smallest number-average molecular weight. Compared to producing component (IX) and component (IN) separately, the number of production steps can be reduced, thereby improving production efficiency. 【0050】 The coupling agents that can be used in (4) above are not limited to those that are conventionally known and can be used. 【0051】 Examples of bifunctional coupling agents include, but are not limited to, alkoxysilane compounds such as trimethoxysilane, triethoxysilane, tetramethoxysilane, tetraethoxysilane, dimethyldimethoxysilane, diethyldimethoxysilane, dichlorodimethoxysilane, dichlorodiethoxysilane, trichloromethoxysilane, and trichloroethoxysilane; dihalogen compounds such as dichloroethane, dibromoethane, dimethyldichlorosilane, and dimethyldibromosilane; and acid esters such as methyl benzoate, ethyl benzoate, phenyl benzoate, and phthalates. 【0052】 Furthermore, conventionally known polyfunctional coupling agents with three or more functions can be used, and are not particularly limited. Examples of polyfunctional coupling agents with three or more functions include, but are not limited to, polyalcohols with three or more functions, epoxidized soybean oil, diglycidylbisphenol A, polyvalent epoxy compounds such as 1,3-bis(N-N'-diglycidylaminomethyl)cyclohexane, and general formula R4-nSiX n Silicon halide compounds represented by the formula R4-nSnX (where R is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen, and n is an integer from 3 to 4), such as methylsilyl trichloride, t-butylsilyl trichloride, silicon tetrachloride, and their brominated products, etc., with the general formula R4-nSnX n Examples of tin halogen compounds represented by (where R is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen, and n is an integer between 3 and 4) include polyvalent halogen compounds such as methyltin trichloride, t-butyltin trichloride, and tin tetrachloride. Dimethyl carbonate and diethyl carbonate may also be used. 【0053】 After removing catalyst residue as necessary from the solution of the conjugated diene copolymer obtained as described above, the conjugated diene copolymer can be separated from the solution. Methods for separating the solvent include, for example, adding a polar solvent that is a poor solvent for the conjugated diene copolymer, such as acetone or alcohol, to the reaction solution after hydrogenation to precipitate and recover the polymer; adding the reaction solution to hot water under stirring and removing the solvent by steam stripping; or directly heating the polymer solution to remove the solvent by distillation. Stabilizers such as various phenolic stabilizers, phosphorus-based stabilizers, sulfur-based stabilizers, and amine-based stabilizers may be added to the conjugated diene copolymer after hydrogenation. 【0054】 The conjugated diene copolymer (I) used in the resin composition of this embodiment may have polar groups to the extent that it does not impair the abrasion resistance of the resin composition of this embodiment. "Polar groups" are not limited to the following, but examples include atomic groups containing at least one functional group selected from the group consisting of hydroxyl groups, carboxyl groups, carbonyl groups, thiocarbonyl groups, acid halide groups, acid anhydride groups, carboxylic acid groups, thiocarboxylic acid groups, aldehyde groups, thioaldehyde groups, carboxylic acid ester groups, amide groups, sulfonic acid groups, sulfonic acid ester groups, phosphoric acid groups, phosphoric acid ester groups, amino groups, imino groups, nitrile groups, pyridyl groups, quinoline groups, epoxy groups, thioepoxy groups, sulfide groups, isocyanate groups, isothiocyanate groups, silicon halide groups, silanol groups, alkoxysilicon groups, tin halide groups, boronic acid groups, boron-containing groups, boronic acid bases, alkoxytin groups, and phenyltin groups. 【0055】 The aforementioned "polar group" can be formed using a modifying agent. Examples of denaturing agents include, but are not limited to, tetraglycidylmetoxylendiamine, tetraglycidyl-1,3-bisaminomethylcyclohexane, ε-caprolactone, δ-valerolactone, 4-methoxybenzophenone, γ-glycidoxyethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyldimethylphenoxysilane, bis(γ-glycidoxypropyl)methylpropoxysilane, 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, N,N'-dimethylpropyleneurea, N-methylpyrrolidone, maleic acid, maleic anhydride, maleimide anhydride, fumaric acid, itaconic acid, acrylic acid, methacrylic acid, glycidylmethacrylate ester, crotonic acid, and the like. 【0056】 Methods for forming "polar groups" are not limited to known methods and can be applied. For example, melt kneading methods and methods in which each component is dissolved or dispersed in a solvent and reacted can be used. Other methods include polymerization using anionic living polymerization initiators or unsaturated monomers having functional groups, modification by adding a modifying agent that forms or contains functional groups at the living end, and a method in which an organolithium compound or other organolikali metal compound is reacted with an organolithium compound (metallation reaction), and a modifying agent having a functional group is added to the block copolymer to which the organolithium has been added. 【0057】 The conjugated diene copolymer (I) may contain antioxidants on its surface and / or internally, for example, by adding antioxidants during manufacturing. Antioxidants include, but are not limited to, phenolic antioxidants, phosphorus-based antioxidants, sulfur-based antioxidants, amine-based antioxidants, and the like. Specifically, 2,6-di-t-butyl-4-methylphenol, n-octadecyl-3-(4'-hydroxy-3',5'-di-t-butyl-phenyl)propionate, tetrakis-[methylene-3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionate]methane], tris-(3,5-di-t-butyl-4-hydroxybenzyl)isocyanurate, 4,4'-butylidene-bis-(3-methyl-6-t-butylphenol), 3,9-bis[2-{3-(3-t-butyl-4-hydroxy-5-methyl [Propionyloxy(2-phenyl)propionyloxy)-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5,5]undecane, triethylene glycol-bis[3-(3-t-butyl-5-methyl-4-hydroxyphenyl)propionate], 1,6-hexanediol-bis-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], 2,4-bis-(n-octylthio)-6-(4-hydroxy-3,5-di-t-butylanilino)1,3,5-triazine, pentaerythrityl-tetrakis[3 -(3,5-di-t-butyl-4-hydroxyphenyl)propionate], 2,2-thio-diethylenebis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], N,N'-hexamethylenebis(3,5-di-t-butyl-4-hydroxyhydrocinnamamide), 3,5-di-t-butyl-4-hydroxybenzylphosphonate-diethyl ester, 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, bis(3,5-di-t-butyl-4 -Hydroxybenzylphosphonate ethyl) calcium and polyethylene wax (50%) mixture, octylated diphenylamine, 2,4-bis[(octylthio)methyl]-o-cresol, isooctyl-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, butyrate, 3,3-bis(3-t-butyl-4-hydroxyphenyl)ethylene ester, 1,1,3-tris-(2-methyl-4-hydroxy-5-t-butylphenyl)butane, 1,3,5-tris(4-t-butyl-3-hydroxy-2,Examples include 6-dimethylbenzyl isocyanurate, 2-t-butyl-6-(3'-t-butyl-5'-methyl-2'-hydroxybenzyl)-4-methylphenyl acrylate, and 2-[1-(2-hydroxy-3,5-di-t-pentylphenyl)-ethyl]-4,6-di-t-pentylphenyl acrylate. 【0058】 The conjugated diene copolymer (I) may be pelletized. These may be pelletized individually or as a mixture. Examples of pelletizing methods include: extruding a conjugated diene copolymer into strands and cutting them underwater with a rotating blade installed in front of the die; extruding a conjugated diene copolymer into strands from a single-screw or twin-screw extruder, cooling them with water or air, and then cutting them with a strand cutter; and melting and mixing the material in an open roll or Banbury mixer, forming it into a sheet with a roll, cutting the sheet into strips, and then cutting it into cubic pellets with a pelletizer. Furthermore, the size and shape of the pellets of the conjugated diene copolymer (I) are not particularly limited. 【0059】 The pellets of the conjugated diene copolymer (I) may, if necessary, be formulated with a pellet blocking inhibitor to prevent pellet blocking. Examples of pellet blocking inhibitors include, but are not limited to, calcium stearate, magnesium stearate, zinc stearate, polyethylene, polypropylene, ethylene bisstearylamide, talc, amorphous silica, and the like. The preferred amount of pellet blocking inhibitor is 500 to 9000 ppm relative to component (IX) and / or component (IN), and a more preferred amount is 1000 to 7000 ppm. The pellet blocking inhibitor is preferably formulated to adhere to the surface of the pellets, but it can also be included to some extent inside the pellets. 【0060】 (Component (II): Polyolefin resin) The resin composition of this embodiment includes component (II) a polyolefin resin. Polyolefin resins are not particularly limited as long as they are crystalline polymers (resins) obtained from olefins, but it is preferable that they are polymers consisting of crystalline high molecular weight solid products obtained by polymerizing one or more olefins by either a high-pressure method or a low-pressure method. Olefin resins may be used individually or in combination of two or more types. 【0061】 Examples of olefin resins include polyethylene resin and polypropylene resin. Examples of polyethylene resins include low-density polyethylene, linear low-density polyethylene, high-density polyethylene, and copolymers of ethylene and α-olefins having 3 to 8 carbon atoms. In the case of copolymers of ethylene and α-olefins having 3 to 8 carbon atoms, examples of α-olefins in the copolymer include propylene, 1-butene, isobutene, 1-pentene, 1-hexene, 1-octene, 1-decene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methyl-1-pentene, and 5-methyl-1-hexene. 【0062】 Examples of polypropylene resins include propylene homopolymers and copolymers of propylene with 2 to 8 carbon atoms (hereinafter also referred to as "propylene resins"). In the case of copolymers of propylene with 2 to 8 carbon atoms, examples of α-olefins in the copolymer include propylene, 1-butene, isobutene, 1-pentene, 1-hexene, 1-octene, 1-decene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methyl-1-pentene, and 5-methyl-1-hexene. The structure of the polypropylene resin is not particularly limited; for example, the propylene-derived constituent unit may have an isotactic, syndiotactic, or atactic structure. Furthermore, the copolymer may be random (random PP), block (block PP), or grafted. These polypropylene resins can be synthesized by conventionally known methods. Examples of propylene resins include propylene homopolymers synthesized using Ziegler-Natta type catalysts, and copolymers of random or block propylene with α-olefins. Examples of commercially available products include polypropylene from Sun Allomer Co., Ltd., Prime Polypropylene from Prime Polymer Co., Ltd., Novatec from Nippon Polypropylene Co., Ltd., and SCG PP from SCG Plastics. 【0063】 Among these olefin resins, from the viewpoint of heat resistance and oil resistance of the resin composition of this embodiment, it is preferable that component (II) includes at least one polypropylene resin and at least one ethylene-α-olefin copolymer. 【0064】 If the polypropylene resin is crystalline, its melting point (according to the measurement method of JIS K 7121) is preferably 100°C or higher, more preferably 120°C or higher, from the viewpoint of heat resistance and other properties of the resin composition of this embodiment, and preferably 180°C or lower, more preferably 170°C or lower, from the viewpoint of moldability. The MFR (Measuring Fuel Rate) of the polypropylene resin (according to the measurement method of ASTM D 1238-65T, at 230°C and a 2.16 kg load) is preferably 0.1 to 100 g / 10 min, and more preferably 0.1 to 50 g / 10 min, from the viewpoint of moldability and handling of the resin composition of this embodiment. 【0065】 The ethylene-α-olefin copolymer is a copolymer containing units derived from ethylene and units derived from α-olefin. The number of carbon atoms of the α-olefin is not particularly limited, but is preferably 3 to 20. The amount of the unit derived from ethylene in the copolymer is 70 to 90 mol%, preferably 80 to 97 mol%. The amount of the unit derived from the α-olefin is 1 to 30 mol%, preferably 3 to 20 mol%. 【0066】 The α-olefin having 3 to 20 carbon atoms is not limited to the following, but examples thereof include propylene, 1-butene, isobutene, 1-pentene, 1-hexene, 1-octene, 1-decene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methyl-1-pentene, 5-methyl-1-hexene, etc. From the viewpoint of the flexibility of the resin composition of the present embodiment, an α-olefin having 5 to 12 carbon atoms is preferable, more preferably propylene, 1-butene, 1-octene, and even more preferably 1-octene, 1-butene. 【0067】 In addition, the olefin resin as component (II) may be a copolymerized product of a monomer having an unsaturated bond as necessary. The monomer having an unsaturated bond is not limited to the following, but examples thereof include conjugated olefins such as butadiene and isoprene; non-conjugated diolefins such as 1,4-hexadiene; cyclic diene compounds such as dicyclopentadiene and norbornene derivatives; and acetylenes. Among these, from the viewpoint of the flexibility of the resin composition of the present embodiment, ethylidene norbornene and dicyclopentadiene are more preferable. 【0068】 The MFR (in accordance with the measurement method of ASTM D 1238-65T, 230 ° C, 2.16 kg load) of the ethylene-α-olefin copolymer is preferably 0.1 to 20 g / 10 min, more preferably 0.3 to 10 g / 10 min, from the viewpoints of the moldability and handleability of the resin composition of the present embodiment. The ethylene-α-olefin copolymer as component (II) usually has a density in the range of 0.8 to 0.9 g / cm 3 within the range. 【0069】 The ethylene-α-olefin copolymer as component (II) can be produced using known polymerization catalysts such as Ziegler-Natta catalysts, vanadium catalysts, or metallocene catalysts. The polymerization method is not particularly limited and can be carried out by conventionally known methods such as solution polymerization, suspension polymerization, and bulk polymerization. Furthermore, ethylene-α-olefin copolymers are also available as commercial products. Examples of commercially available products include, but are not limited to, Engage (ethylene-1-octene copolymer) from Dow Chemical, Vistalon from ExxonMobil, Esprene from Sumitomo Chemical, and Mitsui EPT, Tuffmer P, and Tuffmer A from Mitsui Chemicals. 【0070】 (Component (III) Crosslinking agent) The resin composition of this embodiment can also be crosslinked with component (II) itself, with component (II) and component (I), and with component (I) itself, during the manufacturing and molding of the resin composition described later, by adding component (III) crosslinking agent. Crosslinking these components tends to increase the strength of the resin composition in this embodiment compared to a non-crosslinked version. 【0071】 The component (III) crosslinking agent used in the resin composition of this embodiment is not particularly limited as long as it is a compound that can crosslink the component (I) conjugated diene copolymer and / or the component (II) olefin resin, but organic peroxides are preferred. Organic peroxides include, but are not limited to, the following: 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, 1,1-bis(t-hexylperoxy)-3,3,5-trimethylcyclohexane, 1,1-bis(t-hexylperoxy)cyclohexane, 1,1-bis(t-butylperoxy)cyclododecane, 1,1-bis(t-butylperoxy)cyclohexane, 2,2-bis(t-butylperoxy)octane, n-butyl-4,4-bis(t-butylperoxy)butane, n-butyl- Peroxyketals such as 4,4-bis(t-butylperoxy)valerate; dialkylperoxides such as di-t-butylperoxide, dicumylperoxide, t-butylcumylperoxide, α,α'-bis(t-butylperoxy-m-isopropyl)benzene, α,α'-bis(t-butylperoxy)diisopropylbenzene, 2,5-dimethyl-2,5-bis(t-butylperoxy)hexane, and 2,5-dimethyl-2,5-bis(t-butylperoxy)hexine-3; acetylperoxide, isob Diacyl peroxides such as tyryl peroxide, octanoyl peroxide, decanoyl peroxide, lauroyl peroxide, 3,5,5-trimethylhexanoyl peroxide, benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, m-trioyl peroxide; t-butyl peroxyacetate, t-butyl peroxyisobutyrate, t-butyl peroxy-2-ethylhexanoate, t-butyl peroxylaurate, t-butyl peroxybenzoate, di- Examples include peroxyesters such as hydroxyisophthalate, 2,5-dimethyl-2,5-di(benzoylperoxy)hexane, t-butylperoxymaleic acid, t-butylperoxyisopropyl carbonate, and cumylperoxyoctate; and hydroperoxides such as t-butyl hydroperoxide, cumene hydroperoxide, diisopropylbenzene hydroperoxide, 2,5-dimethylhexane-2,5-dihydroperoxide, and 1,1,3,3-tetramethylbutylperoxide. Among these, 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, di-t-butyl peroxide, dicumyl peroxide, 2,5-dimethyl-2,5-bis(t-butylperoxy)hexane, and 2,5-dimethyl-2,5-bis(t-butylperoxy)hexyn-3 are preferred from the viewpoint of thermal decomposition temperature and crosslinking performance. 【0072】 The component (III) crosslinking agent used in the resin composition of this embodiment may be a single type or two or more types used in combination. Furthermore, when component (III) crosslinking agent is used in the resin composition in this embodiment, it is preferable to further use the following component (IV) crosslinking aid in order to control the crosslinking rate. 【0073】 (Component (IV) Crosslinking agent) The resin composition of this embodiment may also contain component (IV) a crosslinking aid in addition to component (III) the crosslinking agent. The inclusion of component (IV), the crosslinking aid, improves the degree of crosslinking, and the strength of the resin composition of this embodiment tends to improve. Component (IV) crosslinking aids include conventionally known crosslinking aids, specifically monofunctional monomers and polyfunctional monomers. 【0074】 The monofunctional monomers are not limited to the following, but for example, radically polymerizable vinyl monomers are preferred, and examples include aromatic vinyl monomers, unsaturated nitrile monomers such as acrylonitrile and methacrylonitrile, acrylic acid ester monomers, methacrylic acid ester monomers, acrylic acid monomers, methacrylic acid monomers, maleic anhydride monomers, N-substituted maleimide monomers, and the like. Examples of monofunctional monomers include, but are not limited to, styrene, methylstyrene, chloromethylstyrene, hydroxystyrene, tert-butoxystyrene, acetoxystyrene, chlorostyrene, acrylonitrile, methacrylonitrile, methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, 2-ethylhexyl methacrylate, maleic anhydride, methyl maleic anhydride, 1,2-dimethyl maleic anhydride, ethyl maleic anhydride, phenyl maleic anhydride, N-methyl maleimide, N-ethyl maleimide, N-cyclohexyl maleimide, N-lauryl maleimide, and N-cetyl maleimide. Among these, styrene, acrylonitrile, methacrylonitrile, methyl acrylate, maleic anhydride, and N-methyl maleimide are preferred from the viewpoint of ease of reaction and versatility. These monofunctional monomers may be used individually or in combination of two or more. 【0075】 A polyfunctional monomer is a monomer having multiple radically polymerizable functional groups, and a monomer having a vinyl group is preferred. The number of functional groups in a polyfunctional monomer is preferably two or three. The polyfunctional monomers are not limited to the following, but are preferred, for example, divinylbenzene, triallyl isocyanurate, triallyl cyanurate, diacetone diacrylamide, polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, trimethylolpropane triacrylate, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, diethylene glycol dimethacrylate, diisopropenylbenzene, p-quinone dioxime, p,p'-dibenzoylquinone dioxime, phenylmaleimide, allyl methacrylate, N,N'-m-phenylenebismaleimide, diallyl phthalate, tetraallyloxyethane, 1,2-polybutadiene, and others, with divinylbenzene and triallyl isocyanurate being more preferred. These polyfunctional monomers may be used individually or in combination of two or more. 【0076】 (Content of components (I) to (II)) In this embodiment, the resin composition preferably contains 10 parts by mass or more of component (I) conjugated diene copolymer per 100 parts by mass of component (II) olefin resin. Sufficient wear resistance tends to be obtained when the amount of component (I) is 10 parts by mass or more relative to 100 parts by mass of component (II). More preferably, it is 15 parts by mass or more, and even more preferably 20 parts by mass or more. In this embodiment, the resin composition preferably contains 600 parts by mass or less of component (I) per 100 parts by mass of component (II). A ratio of 600 parts by mass or more of component (I) per 100 parts by mass of component (II) tends to yield sufficient mechanical properties. More preferably, it is 550 parts by mass or less, even more preferably 530 parts by mass or less, and even more preferably 550 parts by mass or less. As described above, when a polypropylene resin and an ethylene-α-olefin copolymer are used as component (II), it is preferable that the ethylene-α-olefin copolymer is in an amount of 100 parts by mass to 600 parts by mass per 100 parts by mass of polypropylene resin. When the amount of ethylene-α-olefin copolymer is 100 parts by mass to 600 parts by mass per 100 parts by mass of polypropylene resin, the resin composition of this embodiment tends to have an excellent balance between mechanical properties and flexibility, and is more preferably 15 to 550 parts by mass, even more preferably 20 to 530 parts by mass, and even more preferably 20 to 500 parts by mass. 【0077】 (Additives) The resin composition of this embodiment may contain other additives, as described later, to the extent that they do not impede the effects of the present invention. Other additives are not particularly limited as long as they are commonly used in the formulation of resin compositions, but examples include fillers, plasticizers, organic and inorganic pigments such as carbon black, titanium dioxide, or phthalocyanine black; heat stabilizers such as 2,6-di-t-butyl-4-methylphenol and n-octadecyl-3-(3,5'-di-t-butyl-4-hydroxyphenyl)propionate; antioxidants such as trisnonylphenyl phosphite and distearyl pentaerythritol diphosphite; UV absorbers such as 2-(2'-hydroxy-5'methylphenyl)benzotriazole and 2,4-dihydroxybenzophenone; bis-[2,2,6,6-tetramethyl- Examples include light stabilizers such as 4-piperidinyl sebacate and tetrakis(2,2,6,6-tetramethyl-4-piperidinyl)-1,2,3,4-butanetetracarboxylate; flame retardants such as ammonium polyphosphate, trioctyl phosphate, and magnesium hydroxide; silicone oils such as dimethyl silicone oil and methylphenyl silicone oil; antiblocking agents such as stearic acid amide and erucic acid amide; foaming agents such as sodium bicarbonate and N,N'-dinitrosopentamethylenetetramine; antistatic agents such as palmitate monoglyceride and stearate monoglyceride; and antibacterial agents such as silver ion-supported zeolite and thiosulfite silver complex. 【0078】 Examples of fillers include, but are not limited to, inorganic fillers such as silica, calcium carbonate, magnesium carbonate, magnesium hydroxide, aluminum hydroxide, calcium sulfate, barium sulfate, carbon black, glass fibers, glass beads, glass balloons, glass flakes, graphite, titanium dioxide, potassium titanate whiskers, carbon fiber, alumina, kaolin clay, silicic acid, calcium silicate, quartz, mica, talc, clay, zirconia, potassium titanate, alumina, and metal particles; and organic fillers such as wood chips, wood powder, pulp, and cellulose nanofibers. Fillers can be used individually or in combination. The shape of these fillers can be flaky, spherical, granular, powdery, or irregularly shaped; there are no particular restrictions. 【0079】 Examples of plasticizers include, but are not limited to, polyethylene glycol and phthalate esters such as dioctyl phthalate (DOP). Examples of flame retardants include, but are not limited to, halogenated flame retardants such as bromine compounds, phosphorus-based flame retardants such as aromatic compounds, and inorganic flame retardants mainly composed of metal hydroxides. From the viewpoint of reducing environmental impact, inorganic flame retardants are preferred. Examples of inorganic flame retardants include, but are not limited to, metal hydroxides such as magnesium hydroxide, aluminum hydroxide, and calcium hydroxide; metal oxides such as zinc borate and barium borate; calcium carbonate; clay; basic magnesium carbonate; and hydrated metal compounds such as hydrotalcite. Among these flame retardants, metal hydroxides such as magnesium hydroxide are preferred from the viewpoint of improving flame retardancy. Some of these flame retardants include so-called flame retardant enhancers, which have low flame retardancy on their own but exhibit a synergistically superior effect when used in combination with other flame retardants. For fillers and flame retardants, it is also possible to use types that have been pre-treated with surface treatment agents such as silane coupling agents. 【0080】 Furthermore, the resin composition of this embodiment may also contain biomass-derived raw materials. Furthermore, the resin composition of this embodiment may also be used in combination with conjugated diene copolymers other than component (I). As described above, using component (I) yields a resin composition with high abrasion resistance and mechanical properties, particularly high strength. However, using conjugated diene copolymers other than component (I) in combination with component (I) can provide excellent abrasion resistance and strength, as well as impart other physical properties. For example, when a conjugated diene copolymer with a main dispersion peak temperature of tanδ below 0°C is used as component (I), a resin composition with excellent abrasion resistance, low-temperature properties, and strength tends to be obtained, but shock absorption and vibration damping properties at room temperature tend to decrease. Therefore, by using a conjugated diene copolymer other than component (I) having a main dispersion peak temperature of tanδ around 25°C, a resin composition with good low-temperature properties, abrasion resistance, strength, shock absorption at room temperature, and vibration damping properties tends to be obtained. Furthermore, when toughness at ultra-low temperatures (below -30°C) is required, it is possible to use a conjugated diene copolymer other than component (I) whose main dispersion peak temperature of tanδ is below -30°C, preferably below -35°C. In addition, while impact resistance tends to be better with increasing molecular weight of the conjugated diene copolymer, two types of conjugated diene copolymers other than component (I) whose main dispersion peak temperature of tanδ is below -30°C, preferably below -35°C may be used in combination to balance with fluidity. That is, it is preferable to use in combination a conjugated diene copolymer other than component (I) whose main dispersion peak temperature of tanδ is below -30°C, preferably below -35°C and whose molecular weight is 200,000 or more, preferably 250,000 or more, and a conjugated diene copolymer other than component (I) whose main dispersion peak temperature of tanδ is below -30°C, preferably below -35°C and whose molecular weight is 180,000 or less, preferably 150,000 or less. By using a conjugated diene copolymer other than component (I) and a conjugated diene copolymer of component (I), it is possible to obtain a resin composition that exhibits excellent toughness, abrasion resistance, and strength at ultra-low temperatures. 【0081】 (Method for manufacturing resin compositions) The method for producing the resin composition of this embodiment is not particularly limited, and known methods can be used. One example of a method for producing the resin composition of this embodiment is to produce the resin composition using a kneading apparatus capable of uniformly mixing each known resin component. The kneading equipment is not limited to the following, but examples include single-screw extruders, twin-screw extruders, kneaders, Banbury mixers, rolls, etc. The melting and kneading temperature is preferably 100 to 400°C, and more preferably 150 to 350°C. For example, dry blending can be performed using various mixers, and methods such as melt-kneading using common mixers such as Banbury mixers, single-screw extruders, twin-screw extruders, kneaders, multi-screw extruders, and rolls, as well as methods in which the solvent is removed by heating after dissolving or dispersing each component, are employed. In the production of the resin composition of this embodiment, the melt mixing method using an extruder is preferred from the viewpoint of productivity and good kneadability. 【0082】 The shape of the resulting resin composition is not particularly limited, but examples include pellets, sheets, strands, and chips. Alternatively, it can be directly molded into a product after melt-kneading. 【0083】 If the resin composition of this embodiment contains component (III) a crosslinking agent and optionally component (IV) a crosslinking aid, and component (II) contains a polypropylene resin and an ethylene-α-olefin copolymer, it can also be produced by the method described above, and may be a resin composition involving a dynamic crosslinking reaction. For resin compositions involving dynamic crosslinking, general equipment such as Banbury mixers, kneaders, single-screw extruders, and twin-screw extruders, which are used in the production of ordinary resin and rubber compositions, can be employed. In particular, twin-screw extruders are preferred for efficiently achieving dynamic crosslinking. Twin-screw extruders are more suitable for uniformly and finely dispersing polypropylene resin and ethylene-α-olefin copolymer, and then adding other components to induce a crosslinking reaction and continuously produce the compositions of this disclosure. Here, the degree of crosslinking is controlled by the type and amount of crosslinking initiator and crosslinking aid added, the reaction temperature, and the reaction method. Furthermore, when producing a resin composition involving a dynamic crosslinking reaction under melt kneading conditions using a twin-screw extruder, the polypropylene resin as component (II), the ethylene-α-olefin copolymer, and component (III) the crosslinking agent, and optionally component (IV) the crosslinking aid may be melt-kneaded to perform dynamic crosslinking, and then component (I) the conjugated diene copolymer may be added. Alternatively, the polypropylene resin as component (II), the ethylene-α-olefin copolymer, and component (III) the crosslinking agent, and optionally component (IV) the crosslinking aid may be melt-kneaded, and then component (I) the conjugated diene copolymer may be added in a later stage using the same extruder. Alternatively, the resin composition may be produced by melt-kneading the polypropylene resin as component (II), the ethylene-α-olefin copolymer, component (III) the crosslinking agent, optionally component (IV) the crosslinking aid, and component (I) the conjugated diene copolymer. Furthermore, it is preferable to carry out the melting and mixing in a closed-type apparatus, and it is also preferable to carry out the process under an inert gas atmosphere such as nitrogen or carbon dioxide. 【0084】 [Molded body] The molded article of this embodiment is a molded article of the resin composition of this embodiment as described above. The molded articles of this embodiment can be manufactured using general molding methods depending on the application. Examples of molding methods include press molding, injection molding, extrusion molding, calendering, hollow molding, vacuum molding, and compression molding. From the viewpoint of productivity and the ability to easily form complex shapes, injection-molded articles formed using injection molding are preferable. The resin composition in this embodiment has excellent abrasion resistance and mechanical properties, and is not particularly limited in its applications. However, it is suitable for various known applications as a molded article, such as automotive parts, civil engineering and construction materials, electrical and electronic components, sanitary products, films and sheets, foams, and artificial leather. It is particularly suitable for use as an automotive part, such as automotive interior parts, and as a surface material for artificial leather. 【0085】 <Automotive parts> Automotive parts using the molded body of this embodiment include, but are not limited to, weatherstrips, ceiling materials, interior seats, bumper moldings, side moldings, air spoilers, air duct hoses, cup holders, handbrake grips, shift knob covers, seat adjustment knobs, flapper door seals, wire harness grommets, rack and pinion boots, suspension cover boots, glass guides, inner beltline seals, roof guides, trunk lid seals, molded quarter window gaskets, corner moldings, glass enclosures, hood seals, glass run channels, secondary seals, various gaskets, bumper parts, body panels, side shields, glass run channels, instrument panel surfaces, door surfaces, ceiling surfaces, weatherstrip materials, hoses, steering wheels, boots, wire harness covers, seat adjuster covers, and the like. 【0086】 <Civil engineering / building materials supplies> Examples of civil engineering and construction materials using the molded body of this embodiment include, but are not limited to, ground improvement sheets, water intake panels, noise-blocking walls, and other civil engineering and construction materials, as well as various gaskets and sheets for civil engineering and construction, waterproofing materials, joint materials, and building window frames. 【0087】 <Electrical and Electronic Components> Electrical and electronic components using the molded body of this embodiment are not limited to the following, but examples include wire insulation materials, connectors, caps, plugs, and other electrical and electronic components. 【0088】 <Household Goods> Examples of lifestyle-related products using the molded body of this embodiment include, but are not limited to, sports equipment such as sports shoe soles, ski boots, tennis rackets, ski bindings, and bat grips, as well as miscellaneous goods such as pen grips, toothbrush grips, hairbrushes, fashion belts, various caps, and shoe insoles. 【0089】 <Film / Sheet> The films and sheets using the molded articles of this embodiment are not limited to the following, but examples include intravenous fluid bags, medical containers, automotive interior and exterior materials, beverage bottles, clothing cases, food packaging materials, food containers, retort containers, pipes, transparent substrates, sealants, and the like. 【0090】 <Artificial leather> Artificial leather using the molded product of this embodiment can be used for chair upholstery, bags, school bags, sports shoes such as athletic shoes, marathon shoes, and running shoes, clothing such as jackets and coats, belts, sashes, ribbons, notebook covers, book covers, keychains, pen cases, wallets, business card holders, and commuter pass cases, etc. [Examples] 【0091】 The present invention will be described in detail below with reference to specific examples and comparative examples, but the present invention is not limited in any way by the following examples and comparative examples. 【0092】 The structure identification and physical properties of the conjugated diene copolymer (component (I)) used in the following examples and comparative examples were performed as follows. 【0093】 [Method for identifying the structure and measuring the physical properties of conjugated diene copolymers] ((1) Amount of vinyl aromatic monomers in component (IX) and component (IN), Amount of vinyl aromatic monomers in random polymer block (C) in component (IX) and component (IN)) The hydrogenated conjugated diene copolymer was subjected to GPC (Ground Propagation) [Instrument: Waters ACQUITY UPLC H-Class; Columns: Waters ACQUITY APC XT900 (2.5 μm, 4.6 × 150 mm), Waters ACQUITY APC XT200 (2.5 μm, 4.6 × 75 mm), Waters ACQUITY APC XT125 (2.5 mm, 4.6 × 75 mm) in series] to separate the low molecular weight copolymer (IN) and the high molecular weight copolymer (IX). Chloroform was used as the solvent. Hydrogenated copolymer (IN) refers to all components with a number-average molecular weight of 40,000 or less, while hydrogenated copolymer (IX) refers to all components with a number-average molecular weight of 130,000 or more, and these were separated. The above fractional components were used as measurement samples, and proton nuclear magnetic resonance ( 1 Using 1H-NMR (ECS400, JOEL RESONABCE), the vinyl aromatic monomer units contained in each were distinguished into those derived from "polymer blocks mainly composed of vinyl aromatic compounds" and those derived from "random copolymer blocks consisting of vinyl aromatic monomer units and conjugated diene monomer units." Deuterated chloroform was used as the solvent, the sample concentration was 50 mg / mL, the observation frequency was 400 MHz, tetramethylsilane was used as the chemical shift reference, the pulse delay was 2.904 seconds, the number of scans was 256, and the measurement temperature was 23°C. After calculating the styrene content for both random and blocky copolymers from the integrated intensity of the signal attributed to aromatics and the integrated value per 1H for each bonding mode, the total styrene content (TS1)(TS2) was calculated, and the styrene content in random copolymer blocks (hereinafter sometimes referred to as random styrene content) (RS1)(RS2) and the content of polymer blocks mainly composed of vinyl aromatic monomer units in hydrogenated copolymers (hereinafter sometimes referred to as styrene blocks) (BS1)(BS2) were calculated. The calculation method is as follows: Styrene block strength (b-St strength) = (cumulative value from 6.9 ppm to 6.3 ppm) / 2 Random styrene strength (r-St strength) = (cumulative value from 7.5 ppm to 6.9 ppm) - 3 × (b - St) Ethylene-butylene strength (EB strength) = Total cumulative value - 3 × {(b-St intensity) + (r-St intensity)} / 8 Styrene block content (BS) =104×(b-St strength) / [104×{(b-St strength)+(r-St strength)}+56×(EB strength)] Styrene content (RS) in random copolymer blocks =104×(r-St strength) / {104×(r-St strength)+56×(EB strength)} 【0094】 ((2) Amount of vinyl binding) The vinyl bond content is the amount of units derived from 1,2-bonds and / or 3,4-bonds of the conjugated diene monomer in the conjugated diene copolymer before hydrogenation, relative to the total amount of polymer blocks (B) and / or random polymer blocks (C). The amount of vinyl bonds (1,2-bonds) contained in each was measured using proton nuclear magnetic resonance (1H-NMR, ECS400, JOEL RESONABCE). Deuterated chloroform was used as the solvent, the sample concentration was 50 mg / mL, the observation frequency was 400 MHz, tetramethylsilane was used as the chemical shift reference, the pulse delay was 2.904 seconds, the number of scans was 256, and the measurement temperature was 23°C. The amount of vinyl bonds was calculated by first determining the integral value per H for each bond type from the integral values ​​of the signals attributed to 1,4-bonds and 1,2-bonds, and then calculating the ratio of 1,2-bonds to the total of 1,4-bonds and 1,2-bonds. 【0095】 ((3) GPC measurement) The number of peaks in the chromatogram obtained by GPC measurement, the number-average molecular weight of component (IX) and component (IN) in the conjugated diene copolymer, and the ratio (mass ratio) of component (IX) to component (IN) were measured. The conjugated diene copolymer and the preparative samples (components (IX) and (IN)) described in (1) above were determined by GPC as follows [apparatus: LC-10 (product name of Shimadzu Corporation), column: TSKgelGMHXL (product name of Shimadzu Corporation, 4.6 mm × 30 cm)]. In GPC, tetrahydrofuran was used as the solvent. The measurement conditions were at a temperature of 35°C. The number of peaks in the obtained chromatogram was calculated. For the molecular weight of each peak, the number-average molecular weight (Mn) was calculated based on a calibration curve (created using the peak molecular weight of standard polystyrene) obtained from measurements of commercially available standard polystyrene. The ratios of component (IX) and component (IN) were calculated from the ratio of each peak area in the chromatogram. Although the measurements were taken using conjugated diene copolymers before hydrogenation, these values ​​are not altered by the hydrogenation operations described in the examples and comparative examples below. 【0096】 (4) Hydrogenation rate The hydrogenation rate is the sum of the content of alkenyl monomer units, which are the hydrogenated form of conjugated diene monomer units, and the content of alkenyl monomer units, which are the hydrogenated form derived from the 1,4-bonds of conjugated diene monomer units, relative to the total amount of polymer block (B) and / or random polymer block (C). The hydrogenation rate (%) of the conjugated diene copolymer after hydrogenation was measured using a nuclear magnetic resonance spectrometer (BRUKER "DPX-400"). 【0097】 ((5) Main dispersion peak temperature of tanδ, temperature range where tanδ is 0.4 or higher) The main dispersion peak temperature of tanδ and the temperature range in which tanδ is 0.4 or higher for conjugated diene copolymers were determined as follows. First, the hydrogenated conjugated diene copolymer was used as the sample, and this sample was cut into a sheet-like molded body measuring 10 mm in width, 40 mm in length, and 2 mm in thickness to prepare the sample for measurement. Next, the sample for measurement was set in the torsion-type geometry of the ARES instrument (product name from TA Instruments), and dynamic viscoelasticity measurements were performed under the following conditions: effective measurement length of 25 mm, strain of 0.5%, frequency of 1 Hz, and heating rate of 3 °C / min. The scanning temperature range was -100 to 100 °C. From the tanδ-temperature curves obtained from the above measurements, we calculated the temperature at which tanδ is maximum in the range of -30°C to 60°C, and the temperature range where tanδ is 0.4 or higher. Table 1 shows the numerical values ​​for the width of the temperature range in which tanδ is 0.4 or greater. That is, for example, in Example 1, if the minimum value of the temperature range in which tanδ is 0.4 or greater is a°C and the maximum value is b°C, then ba = 45. 【0098】 [Conjugated diene copolymer] (Preparation of hydrogenated catalyst) In the examples and comparative examples described later, the hydrogenation catalyst used to produce the conjugated diene copolymer was prepared by the following method. A reaction vessel equipped with a stirring device was purged with nitrogen, and 1 liter of dried and purified cyclohexane was charged into it. Next, 100 mmol of bis(η5-cyclopentadienyl)titanium dichloride was added. While stirring thoroughly, an n-hexane solution containing 200 mmol of trimethylaluminum was added, and the reaction was carried out at room temperature for about 3 days. This yielded a hydrogenated catalyst. 【0099】 (Production of conjugated diene copolymers) Block copolymers of vinyl aromatic monomers and conjugated diene monomers: Conjugated diene copolymers (1) to (10) were prepared as follows. 【0100】 <Production Example 1: Conjugated diene copolymer (1)> In the case of conjugated diene copolymer (1), first, conjugated diene copolymer (IX) and conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain conjugated diene copolymer (1) consisting of conjugated diene copolymer (IX) and conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 4.8 parts by mass of styrene was added. Next, 0.027 parts by mass of n-butyllithium, 1.5 moles of tetramethylethylenediamine (TMEDA) per mole of n-butyllithium, and 0.05 moles of sodium t-pentoxide (NaOAm) per mole of n-butyllithium were added to 100 parts by mass of the total monomer, and polymerization was carried out at 50°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 38.2 parts by mass of butadiene and 9.5 parts by mass of styrene was added, and polymerization was carried out at 50°C for 45 minutes. Next, a cyclohexane solution (20% by mass) containing 3.4 parts by mass of styrene was added and polymerization was carried out at 50°C for 10 minutes. Next, 0.256 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, 0.8 moles of TMEDA per mole of NBL2, and 0.01 moles of NaOAm per mole of NBL2. Then, a cyclohexane solution (25% by mass concentration) containing 8.8 parts by mass of styrene was added, and polymerization was carried out at 50°C for 20 minutes. Next, a cyclohexane solution (20% by mass) containing 28.2 parts by mass of butadiene and 7.1 parts by mass of styrene was added, and polymerization was carried out at 50°C for 40 minutes. Subsequently, methanol was added to stop the polymerization reaction and obtain a conjugated diene copolymer (1). As described above, in the conjugated diene copolymer (1), component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 20% by mass, and a number average molecular weight of 210,000. In the conjugated whole copolymer (1), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 20% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the random polymer block (C) of the conjugated diene copolymer (1) was 60%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 6 / 4. To the obtained conjugated diene copolymer (1), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (based on Ti) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 0.75 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained hydrogenated conjugated diene copolymer (1) was 75%, the main dispersion peak temperature of tanδ was -18°C, and the width of the temperature range of tanδ above 0.4 was 44. 【0101】 <Production Example 2: Conjugated diene copolymer (2)> The same procedure as in Production Example 1 was followed, except that the hydrogenation reaction was carried out for 1.5 hours. In the conjugated diene copolymer (2) obtained as described above, component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 20% by mass, and a number average molecular weight of 210,000. In the conjugated diene copolymer (1), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 20% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the random polymer block (C) of conjugated diene copolymer (1) was 60%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 6 / 4, the main dispersion peak temperature for tanδ at a hydrogenation rate of 98% was -10°C, and the numerical value of the width of the temperature range of tanδ above 0.4 was 46. 【0102】 <Production Example 3: Conjugated diene copolymer (3)> In the case of conjugated diene copolymer (3), first, conjugated diene copolymer (IX) and conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain conjugated diene copolymer (3) consisting of conjugated diene copolymer (IX) and conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 5.6 parts by mass of styrene was added. Next, 0.021 parts by mass of n-butyllithium, 1.5 moles of tetramethylethylenediamine (TMEDA) per mole of n-butyllithium, and 0.05 moles of sodium t-pentoxide (NaOAm) per mole of n-butyllithium were added to 100 parts by mass of the total monomer, and polymerization was carried out at 50°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 45.5 parts by mass of butadiene and 11.1 parts by mass of styrene was added, and polymerization was carried out at 50°C for 45 minutes. Next, a cyclohexane solution (20% by mass) containing 4.3 parts by mass of styrene was added and polymerization was carried out at 50°C for 10 minutes. Next, 0.192 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, 0.8 moles of TMEDA per mole of NBL2, and 0.01 moles of NaOAm per mole of NBL2. Then, a cyclohexane solution (25% by mass concentration) containing 6.7 parts by mass of styrene was added, and polymerization was carried out at 50°C for 20 minutes. Next, a cyclohexane solution (20% by mass) containing 21.3 parts by mass of butadiene and 5.3 parts by mass of styrene was added, and polymerization was carried out at 50°C for 40 minutes. Subsequently, methanol was added to stop the polymerization reaction and obtain a conjugated diene copolymer (3). As described above, in the conjugated diene copolymer (3), component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 20% by mass, and a number average molecular weight of 210,000. In the conjugated whole copolymer (3), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 20% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the polymer block (C) of the conjugated diene copolymer (3) was 60%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 70 / 30. To the obtained conjugated diene copolymer (3), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (Ti-based) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 0.75 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (3) was 98%, the main dispersion peak temperature of tanδ was -18°C, and the width of the temperature range of tanδ above 0.4 was 42. 【0103】 <Production Example 4: Conjugated diene copolymer (4)> In the case of the conjugated diene copolymer (4), first, the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain the conjugated diene copolymer (4) consisting of the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 4.8 parts by mass of styrene was added. Next, 0.018 parts by mass of n-butyllithium, 1.5 moles of tetramethylethylenediamine (TMEDA) per mole of n-butyllithium, and 0.05 moles of sodium t-pentoxide (NaOAm) per mole of n-butyllithium were added to 100 parts by mass of the total monomer, and polymerization was carried out at 50°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 39 parts by mass of butadiene and 9.7 parts by mass of styrene was added, and polymerization was carried out at 50°C for 45 minutes. Next, a cyclohexane solution (20% by mass) containing 3.7 parts by mass of styrene was added and polymerization was carried out at 50°C for 10 minutes. Next, 0.256 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, 0.8 moles of TMEDA per mole of NBL2, and 0.01 moles of NaOAm per mole of NBL2. Then, a cyclohexane solution (25% by mass concentration) containing 8.6 parts by mass of styrene was added, and polymerization was carried out at 50°C for 20 minutes. Next, a cyclohexane solution (20% by mass) containing 27.4 parts by mass of butadiene and 6.9 parts by mass of styrene was added, and polymerization was carried out at 50°C for 40 minutes. Methanol was then added to stop the polymerization reaction, yielding a conjugated diene copolymer (4). As described above, in the conjugated diene copolymer (4), component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 20% by mass, and a number average molecular weight of 310,000. In the conjugated whole copolymer (4), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 20% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the polymer block (C) of the conjugated diene copolymer (4) was 60%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 6 / 4. To the obtained conjugated diene copolymer (4), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (Ti-based) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 1.5 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (4) was 98%, the main dispersion peak temperature of tanδ was -10°C, and the width of the temperature range of tanδ above 0.4 was 50. 【0104】 <Production Example 5: Conjugated diene copolymer (5)> In the case of the conjugated diene copolymer (5), first, the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain the conjugated diene copolymer (5) consisting of the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 7.4 parts by mass of styrene was added. Next, 0.045 parts by mass of n-butyllithium, 1.5 moles of tetramethylethylenediamine (TMEDA) per mole of n-butyllithium, and 0.02 moles of sodium t-pentoxide (NaOAm) per mole of n-butyllithium were added to 100 parts by mass of the total monomer, and polymerization was carried out at 50°C for 10 minutes. Next, a cyclohexane solution (20% by mass) containing 25.2 parts by mass of butadiene and 25.2 parts by mass of styrene was added, and polymerization was carried out at 50°C for 50 minutes. Next, a cyclohexane solution (20% by mass) containing 5.2 parts by mass of styrene was added and polymerization was carried out at 50°C for 10 minutes. Next, 0.192 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, and 0.8 moles of TMEDA were added per mole of NBL2. Then, a cyclohexane solution (concentration 25% by mass) containing 7.4 parts by mass of styrene was added, and polymerization was carried out at 50°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 17.8 parts by mass of butadiene and 11.8 parts by mass of styrene was added, and polymerization was carried out at 50°C for 30 minutes. Methanol was then added to stop the polymerization reaction, yielding a conjugated diene copolymer (5). As described above, in the conjugated diene copolymer (5), component (IX) had a vinyl aromatic monomer unit content of 60% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 50% by mass, and a number average molecular weight of 140,000. In the conjugated whole copolymer (5), component (IN) had a vinyl aromatic monomer unit content of 52% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 40% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the polymer block (C) of the conjugated diene copolymer (5) was 50%. The number of peaks in the chromatogram of the conjugated diene copolymer measured by GPC was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 70 / 30. To the obtained conjugated diene copolymer (5), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (Ti-based) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 0.75 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (5) was 76%, the main dispersion peak temperature of tanδ was 15°C, and the width of the temperature range of tanδ above 0.4 was 45. 【0105】 <Production Example 6: Conjugated diene copolymer (6)> The same procedure as in Production Example 5 was followed, except that the hydrogenation reaction was carried out for 1.5 hours. In the conjugated diene copolymer (6) obtained as described above, component (IX) had a vinyl aromatic monomer unit content of 60% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 50% by mass, and a number average molecular weight of 140,000. In the conjugated diene copolymer (6), component (IN) had a vinyl aromatic monomer unit content of 52% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 40% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the random polymer block (C) of the conjugated diene copolymer (6) was 50%. The number of peaks in the chromatogram of the conjugated diene copolymer measured by GPC was 2, the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 70 / 30, the hydrogenation rate was 98%, the main dispersion peak temperature of tanδ was 18°C, and the width of the temperature range of tanδ above 0.4 was 49. 【0106】 <Production Example 7: Conjugated diene copolymer (7)> In the case of the conjugated diene copolymer (7), first, the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain the conjugated diene copolymer (7) consisting of the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 5.6 parts by mass of styrene was added. Next, 0.045 parts by mass of n-butyllithium, 1.5 moles of tetramethylethylenediamine (TMEDA) per mole of n-butyllithium, and 0.02 moles of sodium t-pentoxide (NaOAm) per mole of n-butyllithium were added to 100 parts by mass of the total monomer, and polymerization was carried out at 50°C for 10 minutes. Next, a cyclohexane solution (20% by mass) containing 47.1 parts by mass of butadiene was added and polymerization was carried out at 50°C for 45 minutes. Next, a cyclohexane solution (20% by mass) containing 4.5 parts by mass of styrene was added and polymerization was carried out at 50°C for 10 minutes. Next, 0.192 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, and 0.8 moles of TMEDA were added per mole of NBL2. Then, a cyclohexane solution (25% by mass concentration) containing 6.4 parts by mass of styrene was added, and polymerization was carried out at 50°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 36.4 parts by mass of butadiene was added and polymerization was carried out at 50°C for 25 minutes. Methanol was then added to stop the polymerization reaction, yielding a conjugated diene copolymer (7). As described above, in the conjugated diene copolymer (7), component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 0% by mass, and a number average molecular weight of 210,000. In the conjugated whole copolymer (7), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 0% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the polymer block (C) of the conjugated diene copolymer (7) was 74%. The number of peaks in the chromatogram of the conjugated diene copolymer measured by GPC was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 60 / 40. To the obtained conjugated diene copolymer (7), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (Ti-based) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 0.75 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (7) was 76%, the main dispersion peak temperature of tanδ was 0°C, and the width of the temperature range of tanδ above 0.4 was 37. 【0107】 <Production Example 8: Conjugated diene copolymer (8)> The same procedure as in Production Example 7 was followed, except that the hydrogenation reaction was carried out for 1.5 hours. Component (IX) in the conjugated diene copolymer (8) obtained as described above is component (I -X) contains 35% by mass of vinyl aromatic monomer units, component (IX) contains 0% by mass of vinyl aromatic monomers in copolymer block (C), and has a number average molecular weight of 210,000. Component (IN) in the conjugated diene copolymer (8) contains 35% by mass of vinyl aromatic monomer units, component (IN) contains 0% by mass of vinyl aromatic monomers in random polymer block (C), and has a number average molecular weight of 10,000. The amount of vinyl bonds in polymer block (B) in the conjugated diene copolymer (8) is 74%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 60 / 40, the hydrogenation rate was 98%, the main dispersion peak temperature of tanδ was -31°C, and the width of the temperature range of tanδ above 0.4 was 42. 【0108】 <Production Example 9: Conjugated diene copolymer (9)> In the case of the conjugated diene copolymer (9), first, the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN) were batch polymerized using a single reactor, and then a hydrogenation reaction was carried out to obtain the conjugated diene copolymer (9) consisting of the conjugated diene copolymer (IX) and the conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 9.5 parts by mass of styrene was added. Next, 0.018 parts by mass of n-butyllithium and 0.3 moles of tetramethylethylenediamine (TMEDA) were added to 100 parts by mass of the total monomer, and polymerization was carried out at 70°C for 15 minutes. Next, a cyclohexane solution (20% by mass) containing 38 parts by mass of butadiene and 2.0 parts by mass of styrene was added and polymerization was carried out at 70°C for 30 minutes. Next, a cyclohexane solution (20% by mass) containing 7.6 parts by mass of styrene was added and polymerization was carried out at 70°C for 10 minutes. Next, 0.256 parts by mass of n-butyllithium (NBL2) was added per 100 parts by mass of total monomer, and 0.7 moles of TMEDA were added per mole of NBL2. Then, a cyclohexane solution (concentration 25% by mass) containing 12.9 parts by mass of styrene was added, and polymerization was carried out at 70°C for 20 minutes. Next, a cyclohexane solution (20% by mass) containing 27.9 parts by mass of butadiene and 2.1 parts by mass of styrene was added, and polymerization was carried out at 70°C for 30 minutes. Methanol was then added to stop the polymerization reaction, yielding a conjugated diene copolymer (9). As described above, in the conjugated diene copolymer (9), component (IX) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IX) of 5% by mass, and a number average molecular weight of 210,000. In the conjugated whole copolymer (9), component (IN) had a vinyl aromatic monomer unit content of 35% by mass, a vinyl aromatic monomer content in the random polymer block (C) of component (IN) of 5% by mass, and a number average molecular weight of 10,000. The vinyl bond content in the random polymer block (C) of the conjugated diene copolymer (9) was 30%. The number of peaks in the chromatogram of the conjugated diene copolymer in GPC measurement was 2, and the ratio of component (IX) to component (IN) was component (IX) / component (IN) = 6 / 4. To the obtained conjugated diene copolymer (9), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (Ti-based) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 1.5 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (9) was 97%, the main dispersion peak temperature of tanδ was -31°C, and the width of the temperature range of tanδ above 0.4 was 35. 【0109】 <Production Example 10: Conjugated diene copolymer (10)> The conjugated diene copolymer (10) is a conjugated diene copolymer that does not contain the conjugated diene copolymer (IN). Batch polymerization was carried out using a tank-type reactor (internal volume 10L) equipped with a stirring device and a jacket. First, a cyclohexane solution (20% by mass) containing 7.5 parts by mass of styrene was added. Next, 0.044 parts by mass of n-butyllithium and 1.0 mole of tetramethylethylenediamine (TMEDA) were added to 100 parts by mass of the total monomer, and polymerization was carried out at 70°C for 10 minutes. Next, a cyclohexane solution (20% by mass) containing 60 parts by mass of butadiene and 15 parts by mass of styrene was added and polymerization was carried out at 70°C for 35 minutes. Next, a cyclohexane solution (20% by mass) containing 7.5 parts by mass of styrene was added and polymerization was carried out at 70°C for 10 minutes. Next, a cyclohexane solution (20% by mass) containing 8 parts by mass of butadiene and 2 parts by mass of styrene was added and polymerization was carried out at 70°C for 10 minutes. Methanol was then added to stop the polymerization reaction, yielding a conjugated diene copolymer (10). As described above, component (IX) in the conjugated diene copolymer (10) had a vinyl aromatic monomer unit content of 32% by mass, a vinyl aromatic monomer content in the random polymer block (C) of 20% by mass, a number average molecular weight of 210,000, a vinyl bond content in the random polymer block (C) of the conjugated diene copolymer (10) of 60%, one peak in the chromatogram of the conjugated diene copolymer measured by GPC, and a ratio of component (IX) to component (IN) of component (IX) / component (IN) = 100 / 0. To the obtained conjugated diene copolymer (10), the hydrogenation catalyst prepared as described above was added at a concentration of 90 ppm (based on Ti) per 100 parts by mass of block copolymer, and the hydrogenation reaction was carried out at a hydrogen pressure of 0.7 MPa and a temperature of 80°C for approximately 1.5 hours to obtain a solution of the hydrogenated block copolymer. The hydrogenation rate of the obtained conjugated diene copolymer (10) was 98%, the main dispersion peak temperature of tanδ was -18°C, and the width of the temperature range of tanδ above 0.4 was 30. 【0110】 [Examples 1-10], [Comparative Examples 1-12] The resin composition was prepared using the obtained conjugated diene copolymers (1) to (10) (component (I)) and components (II), (III), and (IV) listed below, according to the following method. The component ratios and evaluation results for each example are shown in Tables 2 and 3 below. Note that the content of each component in the table is shown in mass percent. 【0111】 <Component (II): Polyolefin resin> The following commercially available products were used. Polypropylene resin: PL500A (manufactured by Sun Allomer, abbreviated as "500A" in the table.) Ethylene-α-olefin copolymer: Engage EG8200 (manufactured by Dow Chemical Company; abbreviated as "EG8200" in the table.) 【0112】 <Component (III): Crosslinking agent> Perhexa 25B (manufactured by NOF Corporation) 【0113】 <Component (IV): Crosslinking agent> Divinylbenzene (manufactured by Tokyo Chemical Industry Co., Ltd., abbreviated as "DVB" in the table). Triallyl isocyanate (manufactured by Tokyo Chemical Industry Co., Ltd., abbreviated as "TAIC" in the table). 【0114】 <Method for preparing resin compositions> The temperature across the entire length of the extruder was set to 180-220°C, and components (I) and (II), along with components (III) and / or (IV) as needed, were compounded using a twin-screw extruder. The screw rotation speed was approximately 250 rpm, and the extrusion rate was 5 kg / h. Components (I) and (II) were generally supplied from the throat of the extruder, while components (III) and (IV) were supplied from the downstream of the extruder when added. The strands extruded from the extruder were pelletized, dried at approximately 60°C for 3 hours, and then injection-molded at 210°C to produce a 2mm thick injection-molded sheet. 【0115】 <Method for evaluating resin compositions> (1) Abrasion resistance Using a JSPS-type abrasion tester (AB-301, manufactured by Tester Industries Co., Ltd.), the surface (textured surface) of the injection-molded sheet produced by the aforementioned injection molding process was rubbed with abrasion cloth (Kanakin No. 3 cotton) under a load of 500g, and the abrasion resistance was evaluated according to the following criteria based on the amount of mass loss after friction. [Evaluation Criteria] ◎: Mass loss is less than 0.018g after 10,000 wear cycles. ○: After 10,000 wear cycles, the mass loss is between 0.018g and less than 0.030g. △: After 10,000 wear cycles, the mass loss is between 0.030g and less than 0.050g. ×: Mass loss of 0.050g or more after 10,000 wear cycles. 【0116】 (2) Liquidity In accordance with JIS K7210, the MFR of the resin composition was measured under conditions of 230°C and a load of 2.16 kg. A higher MFR indicates better fluidity, and it was evaluated according to the following criteria. ◎: 10 or more ○: Less than 10, 7 or more △: Less than 7, 3 or more ×: Less than 3 【0117】 (3) Tensile strength, flexibility In accordance with JIS K6251, tensile tests were conducted using a tensile testing machine (Minebea, TG-5kN) at room temperature, with a No. 3 dumbbell and a crosshead speed of 500 mm / min, and the maximum strength (MPa) and elongation at break (%) were measured. A higher tensile strength indicates greater overall strength, while a higher tensile elongation at break indicates superior flexibility. 【0118】 (4)Hardness A laminated sheet with a thickness of 6 mm was obtained by stacking three injection-molded sheets (2 mm thick) produced by the aforementioned injection molding process, and this was used as the measurement sample. The above measurement samples were measured using a Shore A hardness tester in accordance with JIS K6253. The Shore D hardness was defined as the value immediately after the pressure plate was brought into contact with the test piece. 【0119】 [Table 1] 【0120】 [Table 2] 【0121】 [Table 3] [Industrial applicability] 【0122】 The resin composition of the present invention has industrial applicability as a material for automotive parts, civil engineering and construction supplies, electrical and electronic components, consumer goods, films and sheets, artificial leather, and the like.

Claims

[Claim 1] A resin composition containing component (I) and component (II), The aforementioned component (I) is, A polymer block (A) mainly composed of vinyl aromatic monomer units, The polymer comprises a polymer block (B) mainly composed of conjugated diene monomer units, and / or a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units. A conjugated diene copolymer that satisfies the following conditions (i) and (ii): The aforementioned component (II) is an olefin resin. Resin composition. <Condition (i)> The chromatogram obtained by gel permeation chromatography (GPC) measurement has at least two peaks. <Condition (ii)> In the viscoelastic spectrum obtained under conditions of strain 0.5%, frequency 1 Hz, and heating rate 3°C / min, there is at least one main dispersion peak of tanδ between -30°C and 50°C, and the temperature range in which tanδ is 0.4 or higher is -30 to 60°C, where b-a is 40 or greater, with a minimum temperature of a°C and b maximum temperature of b°C. [Claim 2] The aforementioned component (II) is At least one selected from the group consisting of at least one polypropylene resin and at least one ethylene-α-olefin copolymer. The resin composition according to claim 1. [Claim 3] Ingredient (III): Further contains a crosslinking agent, The resin composition according to claim 1. [Claim 4] The above component (I) is a hydrogenated conjugated diene copolymer. The resin composition according to claim 1. [Claim 5] The aforementioned component (I) is In the chromatogram obtained by GPC measurement, the ratio of the number-average molecular weight (MX) of the component with the largest number-average molecular weight (component (I-X)) to the number-average molecular weight (MN) of the component with the smallest number-average molecular weight (component (I-N)) is MN / MX < 0.

25. Furthermore, it is a conjugated diene copolymer where 1000 ≤ MN ≤ 40000. The resin composition according to claim 1. [Claim 6] The component (I) has a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units, The aforementioned component (I-N) has at least one random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units, The resin composition according to claim 5. [Claim 7] The aforementioned component (I-N) has at least one polymer block (A) mainly composed of vinyl aromatic monomer units. The resin composition according to claim 5. [Claim 8] The component (I) has a random polymer block (C) of vinyl aromatic monomer units and conjugated diene monomer units, The aforementioned component (I-X) has at least two random polymer blocks (C) of vinyl aromatic monomer units and conjugated diene monomer units, The resin composition according to claim 5. [Claim 9] The amount of vinyl aromatic monomers in the random polymer block (C) of the aforementioned component (I-N) is 50% by mass or less. The resin composition according to claim 6. [Claim 10] The amount of vinyl aromatic monomers in the random polymer block (C) of the aforementioned component (I-N) is 40% by mass or less. The resin composition according to claim 6. [Claim 11] The number-average molecular weight of the aforementioned component (I-N) is less than 30,000. The resin composition according to claim 5. [Claim 12] The number-average molecular weight of the aforementioned component (I-X) is less than 300,000. The resin composition according to claim 5. [Claim 13] The number-average molecular weight of the aforementioned component (I-X) is over 150,000. The resin composition according to claim 5. [Claim 14] A molded article of the resin composition according to any one of claims 1 to 13.

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