Resin composition and molded article

Abstract

To provide a resin composition capable of improving the performance balance between the film-forming property and the sliding property of the resulting molded body. 【Solution means】A resin composition containing a polyamide-based resin (A), a silylated polyolefin (B) represented by the following formula (1), and one or more copolymers (C) selected from the group consisting of a modified diene-based copolymer (C1) and an olefin-based copolymer (C2) containing a polar group. TIFF2026094770000007.tif35153 (In the above formula (1), A 1 , A 2 and A 3 are each independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms. R is a hydrocarbon group having 1 to 20 carbon atoms. Each R may be the same or different. m is an integer of 1 to 10,000. When there are a plurality of A 3 , each A 3 may be the same or different. However, at least one of A 1 , A 2 , A 3 represents a polyolefin chain.)

Description

Technical Field

[0001] The present invention relates to a resin composition and a molded article.

Background Art

[0002] As sliding parts such as bearings, heat-resistant plastic materials are widely used. Many of these add powders of polytetrafluoroethylene (PTFE) or inorganic solid lubricants such as molybdenum disulfide and graphite to a heat-resistant base resin for the purpose of imparting abrasion resistance and lubrication characteristics. Since the effect of reducing the coefficient of friction by addition is particularly large, PTFE is used as an additive filler for many heat-resistant resins. However, PTFE has problems in that it is difficult to burn in waste treatment and generates toxic gases when burned. As another method for improving the abrasion resistance of heat-resistant plastic materials, a method of blending a polyethylene resin, a hydrocarbon-based wax, and talc with a polyamide resin (Patent Document 1) has been reported. In the manufacturing process of flexible printed boards and carbon fibers, heat-resistant release films are widely used. As the release film, fluorine-based films, silicone-coated polyethylene terephthalate films, silicone-coated polymethylpentene films, etc. have been used (Patent Document 2).

Prior Art Documents

Patent Documents

[0003] <00值が大きいため、PTFEは多くの耐熱性樹脂の添加充填剤として用いられている。しかしながら、PTFEは廃棄処理において燃焼し難く、しかも燃焼により有毒ガスを発生するという問題点がある。耐熱性プラスチック材料のその他の耐摩耗性改良方法としては、ポリアミド樹脂にポリエチレン樹脂や炭化水素系ワックスおよびタルクを配合する方法(特許文献1)が報告されている。Since the effect of reducing the coefficient of friction by addition is particularly large, PTFE is used as an additive filler for many heat-resistant resins. However, PTFE has problems in that it is difficult to burn in waste treatment and generates toxic gases when burned. As another method for improving the abrasion resistance of heat-resistant plastic materials, a method of blending a polyethylene resin, a hydrocarbon-based wax, and talc with a polyamide resin (Patent Document 1) has been reported. フレキシブルプリント基板や炭素繊維の製造工程では、耐熱性のある離型フィルムが広く用いられている。離型フィルムとしては、フッ素系フィルム、シリコーン塗布ポリエチレンテレフタレートフィルム、シリコーン塗布ポリメチルペンテンフィルム等が用いられてきた(特許文献2)。 In the manufacturing process of flexible printed boards and carbon fibers, heat-resistant release films are widely used. As the release film, fluorine-based films, silicone-coated polyethylene terephthalate films, silicone-coated polymethylpentene films, etc. have been used (Patent Document 2).

先行技術文献

Prior Art Documents

特許文献

Patent Documents

[0003]

特許文献1

Patent Document 1

特許文献2

Patent Document 2

発明の概要

Summary of the Invention

発明が解決しようとする課題

Problems to be Solved by the Invention

[0004] 本発明は、得られる成形体の製膜性と摺動性の性能バランスを向上できる樹脂組成物を提供するものである。 The present invention provides a resin composition capable of improving the performance balance between film-forming property and slidability of the obtained molded article. [Means for solving the problem]

[0005] According to the present invention, the following resin compositions and molded articles are provided.

[0006] 1. Polyamide resin (A) and A silylated polyolefin (B) represented by the following formula (1), A resin composition containing a copolymer (C) comprising one or more selected from the group consisting of a modified diene copolymer (C1) and an olefin copolymer (C2) containing a polar group. [ka] (In the above formula (1), A 1 , A 2 and A 3 Each of the following is independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms. R is a hydrocarbon group having 1 to 20 carbon atoms. Each R may be the same or different. m is an integer from 1 to 10,000. A 3 If there are multiple A 3 They may be the same or different. However, A 1 , A 2 , A 3 (At least one of these represents a polyolefin chain.) 2. The resin composition according to 1, wherein the modified diene copolymer (C1) comprises a block copolymer having two or more polymer blocks selected from the group consisting of (a) vinyl aromatic polymer blocks, (b) conjugated diene polymer blocks, and (c) random copolymer blocks of a conjugated diene compound and a vinyl aromatic compound. 3. The resin composition according to 2., wherein the modified diene copolymer (C1) comprises one or more selected from the group consisting of amine-modified or maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymers and amine-modified or maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymers. 4. The resin composition according to 3, wherein the modified diene copolymer (C1) comprises one or more selected from the group consisting of maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymers and maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymers. 5. The polyamide resin (A) is a resin composition according to any one of 1. to 4., comprising a thermoplastic polyamide elastomer. 6. The resin composition according to 5, wherein the thermoplastic polyamide elastomer comprises a block copolymer having a polyamide block as a hard segment and a polyether block as a soft segment. 7. The resin composition according to any one of 1 to 6, wherein the mass ratio of the silylated polyolefin (B) is 0.1 parts by mass or more and 20 parts by mass or less, with respect to 100 parts by mass of the total amount of the polyamide resin (A) and copolymer (C) in the resin composition. A molded article comprising a resin composition as described in any of sections 8.1 to 8.7. 9. The molded body is a film, as described in 8. [Effects of the Invention]

[0007] According to the present invention, a resin composition can be provided that can improve the balance between film-forming properties and sliding properties of the resulting molded article. [Modes for carrying out the invention]

[0008] The resin composition and molded article according to this embodiment will be described in detail below, but the present invention is not limited in any way to the following embodiments, and can be implemented with appropriate modifications within the scope of the object of the present invention. In this embodiment, a numerical range represented by "~" means a range that includes the numbers written before and after "~" as the lower and upper limits. In the numerical ranges described in steps in this embodiment, the upper or lower limit described in one numerical range may be replaced with the upper or lower limit of another numerical range described in steps. In addition, in the numerical range described in this embodiment, the upper limit value or the lower limit value described in a certain numerical range may be replaced with the value shown in the examples.

[0009] 1. Resin Composition Hereinafter, the resin composition of this embodiment will be described.

[0010] The resin composition according to this embodiment contains a polyamide-based resin (A), a silylated polyolefin (B) represented by the following formula (1), a copolymer (C) selected from the group consisting of a modified diene-based copolymer (C1) and an olefin-based copolymer (C2) containing a polar group, and one or more of them.

[0011]

Chemical formula

[0012] In formula (1), A 1 , A 2 and A 3 are each independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms. R is a hydrocarbon group having 1 to 20 carbon atoms. Each R may be the same or different. m is an integer of 1 to 10,000. When there are a plurality of A 3 , each A 3 may be the same or different. However, among A 1 , A 2 , A 3 , at least one represents a polyolefin chain.

[0013] The shape of the resin composition of this embodiment is not particularly limited, and examples thereof include pellet shape, veil shape, lump shape, and the like.

[0014] In the resin composition of this embodiment, the mass ratio of silylated polyolefin (B) to 100 parts by mass of the total amount of polyamide resin (A) and copolymer (C) is preferably 0.1 parts by mass or more, more preferably 0.5 parts by mass or more, even more preferably 1.0 part by mass or more, and even more preferably 3.0 parts by mass or more, from the viewpoint of further improving the sliding properties of the molded article, preferably 20 parts by mass or less, more preferably 15 parts by mass or less, even more preferably 12 parts by mass or less, and even more preferably 10 parts by mass or less, from the viewpoint of further improving the film-forming properties of the molded article, and preferably 0.1 parts by mass or more and 20 parts by mass or less, more preferably 0.5 parts by mass or more and 15 parts by mass or less, even more preferably 1.0 parts by mass or more and 12 parts by mass or less, and even more preferably 3.0 parts by mass or more and 10 parts by mass or less.

[0015] When the total amount of polyamide resin (A) and copolymer (C) in the resin composition of this embodiment is 100 parts by mass, the range of polyamide resin (A) / copolymer (C) = 99.9 / 0.1 to 80 / 20 (mass ratio) is preferably selected, the range of 99 / 1 to 85 / 15 is more preferably selected, and the range of 97 / 3 to 90 / 10 is even more preferably selected.

[0016] The following describes each component constituting the resin composition according to this embodiment.

[0017] <Polyamide resin (A)> The following describes polyamide resin (A).

[0018] From the viewpoint of further improving the sliding properties of the molded article, the polyamide resin (A) preferably comprises one or more selected from the group consisting of copolymerized polyamides and thermoplastic polyamide elastomers, more preferably comprises a thermoplastic polyamide elastomer, and even more preferably is a thermoplastic polyamide elastomer.

[0019] (Copolymerized polyamide) The copolymerized polyamides of this embodiment include, for example, aliphatic polyamides such as polycaproamide (nylon 6), polytetramethylene adipamide (nylon 46), polyhexamethylene adipamide (nylon 66), polyhexamethylene sevacamide (nylon 610), polyhexamethylene dodecamide (nylon 612), polyundecamethylene adipamide (nylon 116), polyundecanamide (nylon 11), and polydodecanamide (nylon 12); and polytrimethylhexamethylene terephthalamide and polyhexamethylene isophthalamide, which have aromatic rings derived from aromatic dicarboxylic acids. It comprises one or more selected from the group consisting of: and aromatic polyamides containing aromatic dicarboxylic acid structures such as polyhexamethylene terephthalamide / isophthalamide, and aromatic polyamides containing aromatic diamine structures such as polymetaxylylene adipamide, polyundecamethylene terephthalamide, and polyundecamethylene hexahydroterephthalamide, which have aromatic rings derived from aromatic diamines; and alicyclic polyamides such as polybis(4-aminocyclohexyl)methanedodecamide and polybis(3-methyl-4-aminocyclohexyl)methanedodecamide.

[0020] The intrinsic viscosity (IV) of the copolymerized polyamide of this embodiment, measured in a 98% concentrated sulfuric acid solvent at 25°C, is preferably in the range of 0.1 to 20 (dl / g).

[0021] (Thermoplastic polyamide elastomer) From the viewpoint of further improving the sliding properties of the molded article, the thermoplastic polyamide elastomer of this embodiment includes a block copolymer having a polyamide block as a hard segment and a polyether block as a soft segment.

[0022] The polyamide block as a hard segment of this embodiment comprises one or more selected from the group consisting of, for example, polyamide blocks derived from polycondensed polyamides such as ε-caprolactam, 11-aminoundecanoic acid, and 12-aminolauric acid; and polyamide blocks derived from copolymerized polyamides of dicarboxylic acids such as adipic acid, sebacic acid, terephthalic acid, and isophthalic acid with diamines such as hexamethylenediamine, nonanediamine, and methylpentadiamine; preferably comprising a polyamide block derived from polycondensed polyamide, and more preferably comprising a polyamide block derived from one or more selected from the group consisting of 11-aminoundecanoic acid and 12-aminolauric acid.

[0023] The polyether block as the soft segment of this embodiment includes, for example, a polyether block derived from one or more selected from the group consisting of polyethylene glycol, polypropylene glycol, and polytetramethylene glycol, and preferably a polyether block derived from polytetramethylene glycol.

[0024] In the thermoplastic polyamide elastomer of this embodiment, the polyamide blocks and polyether blocks may be randomly dispersed.

[0025] The thermoplastic polyamide elastomer of this embodiment preferably comprises a castor oil-derived block copolymer resin, and more preferably comprises a polyamide block derived from 11-aminoundecanoic acid derived from castor oil. Furthermore, if the thermoplastic polyamide elastomer of this embodiment includes a polyamide block derived from 11-aminoundecanoic acid derived from castor oil, the thermoplastic polyamide elastomer of this embodiment preferably includes a polyether block derived from polytetramethylene glycol as the polyether block.

[0026] The biodegradability of polyamide resin (A), as measured in accordance with ASTMD6866-22, can be, for example, 30% to 80%.

[0027] The Shore D hardness of polyamide resin (A), measured in accordance with ISO 868:2003, can be, for example, 25 to 40.

[0028] The melting point of polyamide resin (A), measured in accordance with ISO 11357-3:2018, can be, for example, 70°C to 160°C.

[0029] The melt mass flow rate (MFR) of the polyamide resin (A) can be, for example, 20 g / 10 min to 50 g / 10 min.

[0030] The polyamide resin (A) may also contain other resins, such as other polyether resins, styrene elastomers, olefin elastomers, ester elastomers, etc., as long as they do not impair the effects of the present invention.

[0031] Furthermore, the polyamide resin (A) may be manufactured using raw materials that are derived from biomass, recycled materials, or both.

[0032] <Silylated polyolefin (B)> The following describes silylated polyolefins (B).

[0033] Silylated polyolefin (B) is represented by the following formula (1).

[0034] [ka]

[0035] In equation (1), A 1 , A 2 and A 3Each of the following is independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms. R is a hydrocarbon group having 1 to 20 carbon atoms. Each R may be the same or different. m is an integer from 1 to 10,000. A 3 If there are multiple A 3 They may be the same or different. However, A 1 , A 2 , A 3 At least one of these represents a polyolefin chain.

[0036] A 1 , A 2 and A 3 The polyolefin chain represented by this formula is a polymer chain containing structural units derived from, for example, olefins with 2 to 50 carbon atoms.

[0037] Examples of olefins having 2 to 50 carbon atoms include ethylene, α-olefins having 3 to 50 carbon atoms (propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 3-methyl-1-pentene, 3,4-dimethyl-1-pentene, 4-methyl-1-hexene, 3-ethyl-1-pentene, 3-ethyl-4-methyl-1-pentene, 3,4-dimethyl-1-hexene, 4-methyl-1-heptene, 3,4-dimethyl-1-heptene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, and 1-eicosene, vinylcyclohexane, etc.).

[0038] A 1 , A 2 and A 3 The polyolefin chain represented by may be a homopolymer chain or a copolymer chain. For example, the polyolefin chain may be a copolymer chain of ethylene and α-olefins having 3 to 20 carbon atoms, and in the copolymer chain of ethylene and α-olefins having 3 to 20 carbon atoms, when the total constituent units are set to 100 mol%, the structural units derived from α-olefins having 3 to 20 carbon atoms may exceed 0 mol% and be 20 mol% or less.

[0039] Also, A 1, A 2 and A 3 The polyolefin chain represented by may optionally contain structural units derived from other olefins. Examples of other olefins include olefins containing internal double bonds such as cis-2-butene; vinylidene compounds such as isobutene; arylvinyl compounds such as styrene; arylvinylidene compounds such as α-methylstyrene; functionally substituted vinylidene compounds such as methyl methacrylate; aliphatic cyclic olefins containing internal double bonds such as 5-methyl-2-norbornene, tetracyclododecene, cyclopentadiene, and dicyclopentadiene; cyclic olefins containing aromatic rings such as indene; and linear or cyclic polyenes such as butadiene, isoprene, ethylidenenorbornene, and vinylnorbornene. The content of structural units derived from other olefins is A 1 , A 2 and A 3 When the total constituent units of the polyolefin chain represented by are taken as 100 mol%, the amount may be 0 to 10 mol%.

[0040] A 1 , A 2 and A 3 The polyolefin chain represented by the formula may have a number-average molecular weight of 100 to 500,000, determined by the GPC method described below.

[0041] Also, A 1 , A 2 and A 3 The polyolefin chain represented by may have a molecular weight distribution (Mw / Mn) in the range of 1.1 to 3.0, as determined by the GPC method described below.

[0042] GPC measurement method: GPC measurements are performed at a temperature of 140°C using orthodichlorobenzene as the solvent, and analytical values ​​(weight-average molecular weight (Mw), number-average molecular weight (Mn), and Mw / Mn) can be obtained as polyethylene equivalent values. Measurements can be performed under the following conditions. Furthermore, the molecular weight can be determined by creating a calibration curve using commercially available monodisperse standard polystyrene and calculating it based on the conversion method described below. Equipment: Gel permeation chromatograph Alliance GPC2000 (Waters Corporation) Solvent: o-dichlorobenzene Column: A configuration consisting of four TSKgel columns manufactured by Tosoh Corporation connected in series. Flow rate: 1.0ml / min Sample: 0.15 mg / mL of dichlorobenzene solution Temperature: 140℃ Molecular weight conversion: PS conversion / General calibration method Furthermore, the coefficients of the Mark-Houwink viscosity equation shown below can be used for general calibration calculations. Coefficient for polystyrene (PS): KPS = 1.38 × 10 -4 aPS=0.70 Coefficient for polyethylene (PE): KPE = 5.06 × 10 -4 aPE=0.70

[0043] In equation (1), A 1 , A 2 and A 3 Each of the following is independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms, and R is a hydrocarbon group having 1 to 20 carbon atoms. Examples of hydrocarbon groups having 1 to 20 carbon atoms include alkyl groups, arylalkyl groups, alkenyl groups, and aryl groups.

[0044] Examples of alkyl groups include linear or branched alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, hexyl, 2-ethylhexyl, octyl, decyl, and octadecyl groups; and cycloalkyl groups such as cyclopentyl, cyclohexyl, and norbornyl groups. Examples of arylalkyl groups include benzyl groups, phenylethyl groups, and phenylpropyl groups. Examples of alkenyl groups include vinyl groups, propenyl groups, and cyclohexenyl groups. Examples of aryl groups include phenyl, tolyl, dimethylphenyl, trimethylphenyl, ethylphenyl, propylphenyl, and naphthyl groups.

[0045] In equation (1), m is an integer between 1 and 10,000.

[0046] In equation (1), A 3 If there are multiple A 3 They may be the same or different.

[0047] In equation (1), A 1 , A 2 , A 3 At least one of these represents a polyolefin chain.

[0048] In equation (1), m is 2 or greater, and A 3 At least one of them is another A 3 If the order is different, there are multiple types of units represented by the following formula (2), but there are no particular restrictions on the order in which they are arranged, and they may be block-like or random.

[0049] [ka]

[0050] Equation (1) may also be a structure represented by (1A), (1B), or (1C) below. (1A) In equation (1), A 1 and A 2 A is a polyolefin chain, 3 A structure in which the group is a hydrocarbon group having 1 to 20 carbon atoms. (1B) In equation (1), A 1 , A 2 One of them is a polyolefin chain, and the other is a hydrocarbon group having 1 to 20 carbon atoms, A 3 A structure in which the group is a hydrocarbon group having 1 to 20 carbon atoms. (1C) In equation (1), A 1 and A 2A is a hydrocarbon group having 1 to 20 carbon atoms. 3 A structure in which at least one of the elements is a polyolefin chain.

[0051] In silylated polyolefins (B), the silicone chain / polyolefin chain (mass ratio) is not particularly limited, but may be, for example, 5 / 95 to 99 / 1.

[0052] The method for producing silylated polyolefin (B) is not particularly limited, but it can be produced, for example, by the method described in paragraphs 0089-0145 and 0196-0207 of International Publication No. 2012 / 098865.

[0053] The content of silylated polyolefin (B) in the resin composition of this embodiment is not particularly limited, but may be 0.005% to 30% by mass when the total resin composition is considered as 100% by mass.

[0054] Furthermore, silylated polyolefin (B) may be manufactured using raw materials derived from biomass, recycled materials, or both.

[0055] <Copolymer (C)> The copolymer (C) will be explained below.

[0056] The copolymer (C) comprises one or more selected from the group consisting of modified diene copolymers (C1) and olefin copolymers containing polar groups (C2), preferably comprising a modified diene copolymer (C1), and more preferably a modified diene copolymer (C1).

[0057] (Modified diene copolymer (C1)) The modified diene copolymer (C1) will be described below.

[0058] A modified diene copolymer (C1) is a polymer that contains constituent units derived from a conjugated diene compound having one pair of conjugated double bonds (hereinafter sometimes referred to as conjugated diene compound units). The conjugated diene compound of this embodiment includes, for example, one or more selected from the group consisting of 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.

[0059] In the modified diene copolymer (C1), some or all of the conjugated diene compound units may be hydrogenated, but preferably, at least some of the conjugated diene compound units contain a conjugated double bond.

[0060] From the viewpoint of further improving the film-forming properties of molded articles, the modified diene copolymer (C1) may have, as a modifying group, for example, a hydroxyl group, carbonyl group, thiocarbonyl group, acid halide group, carboxyl group, acid anhydride group, thiocarboxyl group, aldehyde group, thioaldehyde group, carboxylic acid ester group, amide group, sulfone group, sulfonic acid ester group, phosphate group, phosphate ester group, amino group, imino group, cyano group, urethane group, urea group, pyridyl group, quinoline group, epoxy group, thioepoxy group, sulfide group, isocyanate group, isothiocyanate group, silicon halide group, cyano It comprises one or more selected from the group consisting of hydroxyl groups, alkoxysilane groups, tin halogen groups, alkoxytin groups, and phenyltin groups; preferably, it comprises one or more selected from the group consisting of hydroxyl groups, carboxyl groups, acid anhydride groups, epoxy groups, amino groups, urethane groups, and isocyanate groups; more preferably, it comprises one or more selected from the group consisting of carboxyl groups, acid anhydride groups, and amino groups; even more preferably, it comprises one or more selected from the group consisting of acid anhydride groups and amino groups; and even more preferably, it comprises acid anhydride groups.

[0061] The acid anhydride group used as the modifying group in the modified diene copolymer (C1) preferably includes a maleic anhydride group.

[0062] The amino group used as the modifying group in the modified diene copolymer (C1) includes, for example, one or more amino groups selected from the group consisting of primary, secondary, and tertiary amino groups, and preferably includes a primary or secondary amino group.

[0063] From the viewpoint of further improving the film-forming properties of the molded article, the modified diene copolymer (C1) preferably includes a block copolymer having two or more polymer blocks selected from the group consisting of (a) vinyl aromatic polymer blocks, (b) conjugated diene polymer blocks, and (c) random copolymer blocks of a conjugated diene compound and a vinyl aromatic compound, and more preferably includes a block copolymer having (a) vinyl aromatic polymer blocks and (b) conjugated diene polymer blocks.

[0064] (a) The vinyl aromatic compound constituting the vinyl aromatic polymer block includes, for example, one or more selected from the group consisting of styrene, α-methylstyrene, p-methylstyrene, divinylbenzene, 1,1-diphenylethylene, N,N-dimethyl-p-aminoethylstyrene, and N,N-diethyl-p-aminoethylstyrene, and preferably contains styrene.

[0065] (b) The conjugated diene compound constituting the conjugated diene polymer block includes, for example, one or more selected from the group consisting of 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, and preferably includes one or more selected from the group consisting of 1,3-butadiene and isoprene.

[0066] As described above, some or all of the conjugated diene compound units may be hydrogenated, but preferably, at least some of the conjugated diene compound units contain a conjugated double bond.

[0067] (c) The conjugated diene compound and vinyl aromatic compound that constitute the random copolymer block of the conjugated diene compound and vinyl aromatic compound are those exemplified as compounds that can be used in (a) vinyl aromatic polymer blocks and (b) conjugated diene polymer blocks.

[0068] (c) In a random copolymer block of a conjugated diene compound and a vinyl aromatic compound, vinyl aromatic units derived from the vinyl aromatic compound may be uniformly distributed or may be distributed in a tapered manner that changes stepwise.

[0069] From the viewpoint of further improving the film-forming properties of the molded article, the modified diene copolymer (C1) preferably comprises one or more selected from the group consisting of amine-modified or maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymer and amine-modified or maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymer, and includes amine-modified or maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymer.

[0070] From the viewpoint of further improving the film-forming properties of the molded article, the modified diene copolymer (C1) preferably comprises one or more selected from the group consisting of maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymer and maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymer, and more preferably comprises maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymer.

[0071] (Olefin copolymer (C2) containing polar groups) The following describes olefin copolymers (C2) containing polar groups.

[0072] The polar group in the olefin copolymer (C2) containing a polar group includes, for example, one or more selected from the group consisting of carboxylic acids or their derivatives (acid anhydrides, esters, amides, imides, metal salts, etc.), epoxy groups, hydroxyl groups, halogens, and amino groups.

[0073] One method for producing an olefin copolymer (C2) containing polar groups is to graft-modify an olefin polymer with a monomer containing polar groups.

[0074] The monomer containing a carboxylic acid or a derivative thereof in this embodiment includes, for example, one or more selected from the group consisting of unsaturated carboxylic acids and their derivatives.

[0075] The unsaturated carboxylic acid in this embodiment includes, for example, one or more selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, and itaconic acid.

[0076] The derivative of the unsaturated carboxylic acid in this embodiment includes, for example, one or more selected from the group consisting of acid anhydrides, esters, amides, imides, and metal salts.

[0077] The monomers containing carboxylic acids or their derivatives in this embodiment include, for example, maleic anhydride, citraconic anhydride, itaconic anhydride, methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, glycidyl acrylate, glycidyl methacrylate, monoethyl maleate, diethyl maleate, monomethyl fumarate, dimethyl fumarate, monomethyl itaconic acid, diethyl itaconic acid, acrylamide, methacrylamide, monoamide maleate, diamide maleate, maleic acid. It comprises one or more selected from the group consisting of acid-N-monoethylamide, maleic acid-N,N-diethylamide, maleic acid-N-monobutylamide, maleic acid-N,N-dibutylamide, fumaric acid monoamide, fumaric acid diamide, fumaric acid-N-monoethylamide, fumaric acid-N,N-diethylamide, fumaric acid-N-monobutylamide, fumaric acid-N,N-dibutylamide, maleimide, N-butylmaleimide, N-phenylmaleimide, sodium acrylate, sodium methacrylate, potassium acrylate, and potassium methacrylate, and preferably contains maleic anhydride.

[0078] The epoxy group-containing monomers of this embodiment include, for example, one or more selected from the group consisting of glycidyl (meth)acrylate, β-methylglycidyl (meth)acrylate, 3,4-epoxycyclohexylmethyl (meth)acrylate, 3,4-epoxycyclohexylethyl (meth)acrylate, 3,4-epoxycyclohexylpropyl (meth)acrylate, and allyl glycidyl ether.

[0079] The monomers containing hydroxyl groups in this embodiment include, for example, linear α-olefin hydroxides having 2 to 20 (preferably 2 to 10) carbon atoms, such as vinyl alcohol, allyl alcohol, 1-butene hydroxide, 1-pentene hydroxide, 1-hexene hydroxide, 1-octene hydroxide, 1-decene hydroxide, 1-dodecene hydroxide, 1-tetradecene hydroxide, 1-hexadecene hydroxide, 1-octadecene hydroxide, and 1-eicosene hydroxide; and 3-methyl-1 hydroxide. It comprises one or more branched α-hydroxylated olefins having 5 to 20 (preferably 5 to 10) carbon atoms, such as butene, 4-methyl-1-pentene hydroxide, 3-methyl-1-pentene hydroxide, 3-ethyl-1-pentene hydroxide, 4,4-dimethyl-1-pentene hydroxide, 4-methyl-1-hexene hydroxide, 4,4-dimethyl-1-hexene hydroxide, 4-ethyl-1-hexene hydroxide, and 3-ethyl-1-hexene hydroxide.

[0080] The halogen-containing monomers of this embodiment include, for example, halogenated α-olefins having Group 17 atoms of the periodic table, such as chlorine, bromine, and iodine. The halogenated α-olefins of this embodiment include, for example, linear halogenated α-olefins having 2 to 20 (preferably 2 to 10) carbon atoms, such as vinyl halogen, halogenated-1-butene, halogenated-1-pentene, halogenated-1-hexene, halogenated-1-octene, halogenated-1-decene, halogenated-1-dodecene, halogenated-1-tetradecene, halogenated-1-hexadecene, halogenated-1-octadecene, and halogenated-1-eicosene; and halogenated-3-methyl-1-butene It comprises one or more selected from the group consisting of branched-chain halogenated α-olefins having 5 to 20 (preferably 5 to 10) carbon atoms, such as tene, halogenated 4-methyl-1-pentene, halogenated 3-methyl-1-pentene, halogenated 3-ethyl-1-pentene, halogenated 4,4-dimethyl-1-pentene, halogenated 4-methyl-1-hexene, halogenated 4,4-dimethyl-1-hexene, halogenated 4-ethyl-1-hexene, and halogenated 3-ethyl-1-hexene.

[0081] The monomer containing an amino group in this embodiment includes, for example, unsaturated amines, and the unsaturated amines in this embodiment include, for example, one or more selected from the group consisting of allylamine, 5-hexenamine, and 6-hepteneamine.

[0082] When graft-modifying an olefin polymer with a monomer containing a polar group to obtain an olefin copolymer (C2) containing a polar group, the raw material olefin polymers can include olefin homopolymers and copolymers. For example, ethylene homopolymers, propylene homopolymers, copolymers of ethylene and α-olefins having 3 to 10 carbon atoms, and copolymers of propylene and 4 to 10 carbon atoms can be used.

[0083] Various known methods can be employed to produce modified products by graft copolymerization of monomers containing polar groups into olefin polymers. For example, one method involves graft copolymerization of an olefin polymer and a monomer containing polar groups by heating them in or without a solvent, with or without the addition of a radical initiator.

[0084] The amount of polar group-containing monomer grafted is preferably 0.01 parts by mass or more and 10 parts by mass or less, and more preferably 0.03 parts by mass or more and 5 parts by mass or less, when the total amount of the polar group-containing olefin copolymer (C2) is 100 parts by mass. The graft amount can be adjusted by changing the grafting rate of polar group-containing monomers to the polyolefin. Alternatively, the total amount of graft material can be adjusted by mixing a modified material with a high polar group content with a modified or unmodified material with a low polar group content.

[0085] Another method for producing an olefin copolymer (C2) containing a polar group is to copolymerize the above-mentioned monomer having a polar group with the above-mentioned olefin using a known method.

[0086] From the viewpoint of further improving the film-forming properties of the molded article, the olefin copolymer (C2) containing a polar group preferably includes an α-olefin·(meth)acrylic acid copolymer, more preferably an ethylene·(meth)acrylic acid copolymer, and even more preferably an ethylene·methacrylic acid copolymer.

[0087] In an olefin copolymer (C2) containing polar groups, the copolymerization ratio (molar ratio) between constituent units derived from polar group-containing monomers and constituent units derived from olefins may be polar group-containing monomer:olefin = 0.5:99.5 to 30:70.

[0088] An olefin copolymer (C2) containing polar groups may contain multiple copolymers with different polar group content.

[0089] Furthermore, copolymer (C) may be manufactured using raw materials derived from biomass, recycled materials, or both.

[0090] The resin composition of this embodiment may contain components other than those listed above, for example, fillers, stabilizers such as heat-resistant stabilizers and weather-resistant stabilizers, crosslinking agents, crosslinking aids, antistatic agents, slip agents, antiblocking agents, antifogging agents, lubricants, dyes, pigments, mineral oil-based softeners, petroleum resins, and waxes, to the extent that they do not impair the purpose of the present invention.

[0091] The method for producing the resin composition of this embodiment is not particularly limited and can be carried out by any desired method. For example, predetermined amounts of each component can be mixed and melt-kneaded, or dry-blended. Melt mixing can be carried out by conventionally known methods. For example, a method of melt mixing under heating using a single-screw or twin-screw extruder, kneader, mixing roll, Banbury mixer, vented extruder, or similar apparatus can be exemplified. Specifically, all materials may be fed in at once from the extruder hopper (extruder inlet) and melt-mixed, or the resin components may be fed in first and melted, and then mixed with the additives that have been side-fed. Alternatively, different types of compounds may be pelletized and then blended, or some powdered or liquid components may be blended separately.

[0092] 2. Molded body The molded body of this embodiment will be described below.

[0093] The molded article of this embodiment contains the resin composition of this embodiment.

[0094] The method for manufacturing the molded article in this embodiment is not particularly limited and may be any known molding method such as injection molding, blow molding, extrusion molding, compression molding, stretching, and vacuum molding.

[0095] The shape of the molded body in this embodiment is not particularly limited and may be any desired shape.

[0096] The molded article of this embodiment can be molded not only as an article but also in the form of films, sheets, hollow containers, fibers, tubes, etc., as an engineering plastic, and can be suitably used in industrial materials, manufacturing materials, household goods, etc.

[0097] The molded article of this embodiment is preferably a film.

[0098] Examples of applications for the molded articles of this embodiment include, but are not limited to, the following.

[0099] The molded articles of this embodiment can be preferably used as packaging materials for various foods, daily necessities, and industrial products, as well as medical containers. They can also be used as exterior components such as outdoor fences, wooden decks, pervolas (grape trellises), and lattices for buildings, as well as interior components such as interior wall materials, flooring materials, ceiling materials, and furniture materials, and as playground equipment, etc.

[0100] The molded body of this embodiment can also be used as an impact-absorbing member. Examples of impact-absorbing members include health products (e.g., smartwatches, massage seats, corsets, neck and shoulder massage devices, face packs, cushions, etc.), nursing care products (e.g., fall prevention films, mats, sheets, handrails, wheelchairs, body positioning devices, ramps, walkers, canes, mobility lifts, etc.), impact-absorbing pads, protectors and protective gear (e.g., helmets, guards, safety glasses, etc.), sports equipment (e.g., sports grips, shoes, golf bags, equestrian equipment, etc.), sports protective gear (e.g., catcher's gear, headgear, kendo equipment, fencing equipment, taekwondo equipment, etc.), rackets ( Examples include tennis rackets, badminton rackets, table tennis rackets, lacrosse rackets, etc.), balls (e.g., soccer balls, baseballs, softballs, basketballs, volleyballs, handballs, rugby balls, tennis balls, ping pong balls, etc.), transport equipment (e.g., shock-absorbing grips for transport, shock-absorbing sheets, transport carts, transport lifts, transport baskets, etc.), industrial materials (e.g., vibration-damping pallets, shock-absorbing dampers, shock-absorbing materials for footwear, shock-absorbing foams, shock-absorbing films, etc.), and shock-absorbing materials for automobiles (e.g., bumper shock-absorbing materials, cushioning materials, etc.).

[0101] The molded parts of this embodiment include automotive interior components such as instrument panels, console boxes, meter covers, door lock bezels, steering wheels, power window switch bases, center clusters, dashboards, roof linings, cowl side trims, door trim base materials, deck trims, inner panels, pillar garnishes, rear packages, package trays, switch bases, quarter panels, seat structural materials, seat backboards, armrest core materials, ceiling base materials, wall materials, floor materials, shock absorbers, sound absorbers, tonneau covers, seats, instrument panels, steering wheel covers, etc.; weatherstrips, bumpers, bumper guards, side mudguards, body panels, cowlings, fenders, spoilers, front grilles, strut mounts, wheel caps, and center pillars. Automotive exterior components such as door mirrors, center ornaments, side moldings, door moldings, window moldings, windows, headlamp covers, taillamp covers, windshield components, antennas, etc.; various front panels for AV equipment, etc.; surface decorative materials such as buttons and emblems; various parts such as housings, display windows, buttons, and computer keyboards for mobile phones and smartphones; exterior materials for furniture; interior building materials such as walls, ceilings, and floors; exterior building materials such as siding, fences, roofs, gates, and gable boards; surface decorative materials for furniture such as window frames, doors, handrails, sills, and lintels; optical components such as various displays, lenses, mirrors, goggles, and window glass; interior and exterior components for various vehicles other than automobiles such as trains, railcars, aircraft, and ships; and can also be used for various other purposes such as bottles, cosmetic containers, small item containers, packaging materials, prizes, and small items.

[0102] The molded articles of this embodiment are suitable for use in many fields, such as electrical insulating materials, industrial component materials, building materials, leisure equipment components, agricultural equipment components, and marine or fishing equipment components.

[0103] The molded body of this embodiment can be used as a building component or construction material for baseboards, decorative panels, door materials, exterior wall materials, vanity units, counter materials, foundation support plates, window frames, wall materials, moldings, handrails, handles, structural materials, civil engineering timbers, columns, floor columns, decorative columns, seismic bracing materials, wallpaper, joinery, ceiling materials, underlayment materials, tatami mats, floors, concrete panels, scaffolding materials, shielding plates, soundproofing plates, furniture box ceilings, doors, front and back panels, shelves, side panels, skirting boards, deck boards, back panels, seat boards, kitchen components, waterproofing materials, antifungal materials, preservatives, shutters, side panels, wainscoting, side panels, bathroom units, floor pans, bathroom ceilings, etc. It can also be applied to bathroom walls, bathrooms, buckets, sanitary equipment, toilet seats, toilet lids, home appliances, radio and television receivers, cabinets, stereo cabinets, amplifier cabinets, speakers, speaker boxes, piano and organ lids, roofs, rolled roofs, upper and lower rolled panels, buoyancy aids (foam) for life jackets, surfboards, cold-weather glove materials, fishing equipment (floats, decorative beads, fish attractants, lures), camping equipment, agricultural films, garden stakes, greenhouse stakes or fasteners for fixing stakes, marine fenders, buoyancy aids, etc.

[0104] The molded body of this embodiment can also be used in small means of transportation such as bicycles, electric assist bicycles, and electric kick scooters; escalators, elevators, etc.; aerospace materials such as manned aircraft, unmanned aircraft, supersonic passenger aircraft, rockets, and artificial satellites; means of transportation such as fuel cell vehicles, hydrogen battery vehicles, and linear motor cars; various playground equipment; various components of robots; various infrastructure such as traffic lights, power lines, water pipes, gas pipes, and optical fibers; liquid crystal panels, solar cells, antennas, transistors; interior components of office automation equipment; casings of office automation equipment; toilet lighting fixtures; umbrellas, raincoats; insulation materials; flooring plates; paints; barrier agents; hydrophilic / hydrophobic control agents; papermaking materials; tires; dampers; hoses; vibration-damping rubber and other various rubber materials; food and beverage containers; 3D printer materials; liquid filters; air filters; semiconductor filters; various nonwoven fabric materials; musical instruments; acoustic materials; wigs; watches; tombstones; eyeglasses; sunglasses; wearable terminals, etc.

[0105] Although embodiments of the present invention have been described above, these are merely examples, and various other configurations can be adopted. Furthermore, the present invention is not limited to the embodiments described above, and any modifications, improvements, etc., that can achieve the objectives of the present invention are included in the present invention. [Examples]

[0106] The present invention will be described in detail below based on examples, but the present invention is not limited to these examples.

[0107] 1. Measurement and Evaluation Methods (1) Weight-average molecular weight (Mw) and molecular weight distribution (Mw / Mn) Calibration curves were created using commercially available monodisperse standard polystyrene. Furthermore, weight-average molecular weight (Mw), number-average molecular weight (Mn), and Mw / Mn were determined as polyethylene equivalents based on the conversion method described below. • Equipment: Gel chromatograph Alliance GPC2000 (Waters Corporation) • Solvent: o-dichlorobenzene • Column: A configuration consisting of four TSKgel columns manufactured by Tosoh Corporation connected in series. ·Flow rate: 1.0ml / min • Sample: 0.15 mg / mLo-dichlorobenzene solution ·Temperature: 140℃ • Molecular weight conversion: PS conversion / General calibration method For the general calibration calculation, the coefficients of the Mark-Houwink viscosity equation shown below were used. Coefficient for polystyrene (PS): KPS = 1.38 × 10 -4 aPS=0.70 Coefficient for polyethylene (PE): KPE = 5.06 × 10 -4 aPE=0.70

[0108] (2) Moldability during film formation The films obtained using the method described below were evaluated according to the following procedure. The results are shown in Table 1. (i) The film surface was visually inspected. (ii) If no holes were formed on the film surface, it was judged as ○ (good) and the evaluation was terminated. Otherwise (if holes were formed on the film surface), the evaluation was continued. (iii) The lengths of the medium diameter (MD) and the depth of the horizontal diameter (TD) of all holes formed on the surface were measured. (iv) If the MD length of all holes was 0.1 mm or less, it was judged as ○ (good) and the evaluation was terminated. Otherwise, the evaluation was continued. (v) If the TD length of all holes was 0.1 mm or less, it was judged as ○ (good) and the evaluation was terminated. Otherwise, the evaluation was continued. (vi) If the MD length of all holes was 50mm or less, it was judged as △ (partially defective) and the evaluation was terminated. Otherwise, the evaluation was continued. (vii) If the TD length of all holes is 20mm or less, it is judged as △ (partially defective); otherwise, it is judged as × (defective), and the evaluation is terminated.

[0109] (3) Coefficient of kinetic friction The dynamic friction coefficient of the film was measured using a friction tester (Trinity Lab Co., Ltd., product name: TL201Ts). A 148 mm (MD) × 210 mm (TD) test piece was taken from the film obtained by the method described below and placed on the stage so that the sliding direction was the MD of the test piece, using the attached urethane contactor with a fingerprint pattern. The dynamic friction coefficient was obtained by measuring under a temperature of 23 ± 2 °C and humidity of 40 ± 5%, with a load of 50 gf and a sliding speed of 100 mm / sec. Three measurements were performed, and the average value of the obtained results was adopted. The results are shown in Table 1.

[0110] (4) Tensile properties (MD) For the films obtained by the method described below, stress-strain curves were measured using a TENSILON universal testing machine (manufactured by A&D Co., Ltd., product name: RTG-1250) under the following conditions: film width 15 mm, chuck distance 30 mm, tensile speed 300 mm / min, and tensile direction: MD. The stress on the film and the elongation of the film at the time of film breakage were measured, respectively. The results are shown in Table 1.

[0111] (5) Haze characteristics The degree of haze of the films obtained by the method described below was measured using a haze meter (TC-HIIIDPK, manufactured by Tokyo Denshoku Co., Ltd.) by irradiating light onto the films placed in predetermined positions. Three measurements were taken, and the average value of the results was used. The results are shown in Table 1.

[0112] (6) Contact angle of distilled water The static contact angle of the film surface obtained by the method described below was measured using the droplet method with distilled water dropped onto the film using a contact angle meter "Solid Surface Energy Analyzer CA-XE" manufactured by Kyowa Interface Science Co., Ltd. The results are shown in Table 1.

[0113] 2.Raw materials The raw materials used in the examples and comparative examples are shown below.

[0114] (1) Polyamide resin (A) As a polyamide resin (A-1), the density is 1.03 g / cm³. 3 A polyamide elastomer (Pebax Rnew Grade 40R53 SP 01 from Arkema) was used, which has a plant-derived content of 44-48%, a melting point of 148°C, and a Shore D hardness of 38, and has 11 blocks of castor oil-derived polyamide as a hard segment and a polytetramethylene glycol block as a soft segment. As a polyamide resin (A-2), the density is 1.01 g / cm³. 3 A polyamide elastomer (Pebax Grade 2533 SA 01 from Arkema) was used, which has a melting point of 134°C, a Shore A hardness of 27, and contains 12 blocks of polyamide as a hard segment and a block of polytetramethylene glycol as a soft segment.

[0115] (2) Silylated polyolefin (B) [Synthesis Example 1] (Synthesis of polyethylene having a vinyl group at one end) A vinyl group-containing ethylene polymer (P-1) was synthesized according to the method described in Synthesis Example 2 of International Publication No. 2012 / 098865. 1 ¹H-NMR measurements revealed that the obtained polymer was homopolyethylene and contained a double bond at only one end. The physical properties of this ethylene polymer containing a vinyl group at one end (P-1) were as follows. Melting point (Tm): 127°C Mw=4770, Mw / Mn=2.25(GPC) Terminal unsaturation rate 97% Furthermore, the Mw / Mn and terminal unsaturation rate of the ethylene polymer containing one vinyl group at one end (P-1) are as follows: 1 , A 2 and A 3 This corresponds to the Mw / Mn and terminal unsaturation rate of the polyolefin chain represented by [formula].

[0116] [Synthesis Example 2] (Preparation of platinum catalyst composition (Q-1)) In a 50 ml sample tube containing a magnetic stirrer tip, 0.50 g of platinum(II) chloride was suspended in 10 ml of hydrosilane A (HS(A), manufactured by Gelest, Inc., DMS-H11) with the structure shown below, and the mixture was stirred at room temperature under a nitrogen stream. After stirring for 190 hours, approximately 0.4 ml of the reaction mixture was taken with a syringe, filtered through a 0.45 μm PTFE filter, and the filtrate was collected in a 10 ml sample tube to obtain a platinum catalyst composition (Q-1) with a platinum concentration of 3.8% by mass. Hydrosilane A (HS(A)): HSi(CH3)2O-(-Si(CH3)2-O-)n-Si(CH3)2H(n=12~13)

[0117] [Synthesis Example 3] (Introduction of polyethylene with terminal vinyl groups into hydrosilane) 25.1 g (11.8 mmol) of the ethylene polymer (P-1) containing a vinyl group at one end obtained in [Synthesis Example 1] was placed in a 300 ml two-necked flask. Under a nitrogen atmosphere, 6.7 g (5.9 mmol; equivalent to 11.8 mmol as Si-H groups) of hydrosilane A (HS(A)) and 150 μl (Q-1a) of the platinum catalyst composition (Q-1) prepared in [Synthesis Example 2] diluted 200-fold with hydrosilane A (HS(A)) were added (1.4 × 10¹⁶ Pt equivalent). -6 An additional mmol was added. The two-necked flask was placed in an oil bath that had been preheated to an internal temperature of 130°C and stirred. After about 3 minutes, the polymer melted. After 6 hours, it was cooled, about 200 ml of methanol was added, and the contents were transferred to a 300 ml beaker and stirred for 2 hours. The solid was then filtered, washed with methanol, and dried at 60°C under reduced pressure of 2 hPa or less to obtain 33.1 g of white solid silylated polyolefin (B-1). NMR analysis revealed that the obtained silylated polyolefin (B-1) had a yield of 98%, an olefin conversion rate of 100%, and an isomerization rate of 2%. The MFR was above the upper limit of measurement (MFR > 100 g / 10 min), and the polyorganosiloxane content in (B-1), calculated from the molecular formula, was 23% by mass.

[0118] (3) Copolymer (C) As the copolymer (C-1), maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymer (hydrogenated styrene-based thermoplastic elastomer, manufactured by Asahi Kasei Corporation, product name: ToughTec® M1943) was used. As the copolymer (C-2), an amine-modified styrene-butylene / butadiene-styrene block copolymer (hydrogenated styrene-based thermoplastic elastomer, manufactured by Asahi Kasei Corporation, product name: ToughTec® MP10) was used. As the copolymer (C-3), ethylene / methacrylic acid copolymer (manufactured by Mitsui DuPont Polychemical Co., Ltd., product name: Nucrel N1108C) was used.

[0119] 3. Conditions for preparing test films The polyamide resin (A), silylated polyolefin (B), and copolymer (C) were melt-kneaded in the quantities listed in Table 1 using a twin-screw extruder (manufactured by Japan Steel Works Ltd., TEX, cylinder diameter 30 mm, L / D = 40, temperature 150-250°C, rotation speed 30-100 rpm) to obtain the respective resin compositions. In Table 1, a "-" in the "Ingredients" column indicates that the ingredient was not added. Subsequently, films were formed using a single-screw extruder (manufactured by Thermoplastics Industry Co., Ltd., film molding machine, cylinder diameter 20 mm, temperature 150-300°C, chiller temperature 5-30°C, rotation speed 10-50 rpm). The films produced by the above method were then used as samples for various physical property evaluations. In Comparative Examples 1 and 2, tensile properties, haze properties, and distilled water contact angle were not evaluated. Furthermore, in Comparative Example 3, because pores occurred on the film, the coefficient of dynamic friction, tensile properties, haze properties, and distilled water contact angle could not be evaluated. In Table 1, a "-" in the evaluation column indicates that an evaluation was not given or could not be given.

[0120] [Table 1]

[0121] The resin composition of the example improved moldability during film formation and reduced the coefficient of dynamic friction of the molded article. This indicates that the resin composition of this embodiment can improve the balance between film-forming properties and sliding properties of the molded article.

Claims

1. Polyamide resin (A), A silylated polyolefin (B) represented by the following formula (1), A resin composition containing a copolymer (C) comprising one or more selected from the group consisting of a modified diene copolymer (C1) and an olefin copolymer (C2) containing a polar group. 【Chemistry 1】 (In the above formula (1), A １ A ２ and A ３ Each of the following is independently a polyolefin chain or a hydrocarbon group having 1 to 20 carbon atoms. R is a hydrocarbon group having 1 to 20 carbon atoms. Each R may be the same or different. m is an integer from 1 to 10,000. A ３ If there are multiple A ３ They may be the same or different. However, A １ A ２ A ３ (At least one of these represents a polyolefin chain.)

2. The resin composition according to claim 1, wherein the modified diene copolymer (C1) comprises a block copolymer having two or more polymer blocks selected from the group consisting of (a) vinyl aromatic polymer blocks, (b) conjugated diene polymer blocks, and (c) random copolymer blocks of a conjugated diene compound and a vinyl aromatic compound.

3. The resin composition according to claim 2, wherein the modified diene copolymer (C1) comprises one or more selected from the group consisting of amine-modified or maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymers and amine-modified or maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymers.

4. The resin composition according to claim 3, wherein the modified diene copolymer (C1) comprises one or more selected from the group consisting of maleic anhydride-modified styrene-butylene / butadiene-styrene block copolymers and maleic anhydride-modified styrene-ethylene / butylene-styrene block copolymers.

5. The resin composition according to any one of claims 1 to 4, wherein the polyamide resin (A) comprises a thermoplastic polyamide elastomer.

6. The resin composition according to claim 5, wherein the thermoplastic polyamide elastomer comprises a block copolymer having a polyamide block as a hard segment and a polyether block as a soft segment.

7. The resin composition according to any one of claims 1 to 6, wherein the mass ratio of the silylated polyolefin (B) is 0.1 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the total amount of the polyamide resin (A) and copolymer (C) in the resin composition.

8. A molded article comprising the resin composition according to any one of claims 1 to 7.

9. The molded body according to claim 8, wherein the molded body is a film.

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