Resin composition

Abstract

To provide a resin composition comprising a polyester resin having improved heat resistance.SOLUTION: There is provided a resin composition comprising a polyester resin obtained by reaction of a maleic acid anhydride-modified polyolefin with a polyol, wherein (a) a resin composition contains a plasticizer and / or (b-1) a polyester resin further has a carbon-nitrogen bond in the structure or (b-2) a polyester resin is obtained by reaction with at least one nitrogen-containing compound selected from the group consisting of a carbodiimide compound, an oxazolidine compound, an amine compound, an isocyanate compound, a melamine cyanurate compound, a cyanate compound, a urea compound, a urethane compound, an amide compound and a cyanide compound.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a resin composition. [Background technology]

[0002] Urethane resins are used as sealants in a variety of locations, both indoors and outdoors, because the high reactivity of isocyanates allows them to harden even in low-temperature environments. However, in recent years, restrictions have been placed on the use of isocyanates due to their adverse effects on the human body.

[0003] Therefore, two-component polyester resins that use modified maleic acid as a curing agent have come to be used as an alternative to urethane resins. For example, Patent Document 1 describes a two-component curable resin composition in which a first component contains polybutadiene polyol and aromatic diamine, and a second component contains maleic anhydride-modified polybutadiene. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6974646 Summary of the Invention [Problem to be solved by the invention]

[0005] However, two-component polyester resins using modified maleic acid as a curing agent have the problem that their applications are limited because they have lower heat resistance than urethane resins. The problem to be solved by the present invention is to provide a resin composition containing a polyester resin having improved heat resistance. [Means for solving the problem]

[0006] As a result of extensive investigations, the present inventors have found that it is possible to provide a resin composition containing a polyester resin, which has improved heat resistance, and have thus completed the present invention.

[0007] That is, the present invention includes the following. (1) A resin composition containing a polyester resin obtained by reacting a maleic anhydride-modified polyolefin with a polyol, (a) the resin composition contains a plasticizer; and / or (b-1) The polyester resin further has a carbon-nitrogen bond in its structure, or (b-2) A resin composition obtained by further reacting a polyester resin with at least one nitrogen-containing compound selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds, isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds. (2) The resin composition according to (1), wherein the plasticizer is a hydrocarbon-based plasticizer or an ester-based plasticizer. (3) The resin composition according to (1), wherein the plasticizer is a naphthenic hydrocarbon or an aromatic hydrocarbon. (4) The resin composition according to (1), wherein the carbon-nitrogen bond is an amide bond, a urethane bond, and / or a urea bond. (5) (a) the resin composition contains a plasticizer; and (b-1) The polyester resin further has a carbon-nitrogen bond in its structure, or (b-2) The resin composition according to (1), wherein the polyester resin is obtained by further reacting with at least one nitrogen-containing compound selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds, isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds. (6) The resin composition according to any one of (1) to (5), further comprising an inorganic filler. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a resin composition having improved heat resistance. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described in detail. Note that the present invention is not limited to the following embodiment, and various modifications can be made within the scope of the gist of the present invention.

[0010] (Resin composition) The resin composition according to one aspect of this embodiment includes a polyester resin obtained by reacting a maleic anhydride-modified polyolefin with a polyol. In the resin composition of the present embodiment, the resin composition is at least one of the following (a) and (b-1) or (b-2), thereby improving heat resistance. (a) The resin composition contains a plasticizer. and / or (b-1) The polyester resin further has a carbon-nitrogen bond in its structure. or (b-2) The polyester resin is further reacted with at least one compound selected from the group consisting of a carbodiimide compound, an oxazolidine compound, an amine compound, an isocyanate compound, a melamine cyanurate compound, a cyanate compound, a urea compound, a urethane compound, an amide compound, and a cyan compound.

[0011] In one aspect of this embodiment, the resin composition may be (a) and (b-1) or (a) and (b-2). In that case, the resin composition is a resin composition containing a polyester resin obtained by reacting a maleic anhydride-modified polyolefin with a polyol, (a) the resin composition contains a plasticizer, and (b-1) The polyester resin further has a carbon-nitrogen bond in its main chain structure, or (b-2) The polyester resin is further reacted with at least one compound selected from the group consisting of a carbodiimide compound, an oxazolidine compound, an amine compound, an isocyanate compound, a melamine cyanurate compound, a cyanate compound, a urea compound, a urethane compound, an amide compound, and a cyan compound. The resin composition may be a resin composition.

[0012] (polyester resin) The polyester resin contained in the resin composition is a resin obtained by reacting a maleic anhydride-modified polyolefin with a polyol to link them together through an ester bond. Therefore, the polyester resin has, in its structure, an ester bond obtained by the reaction of the maleic anhydride-modified polyolefin with the polyol. The maleic anhydride-modified polyolefin and polyol may be commercially available products, or may be prepared according to or in accordance with a conventionally known method.

[0013] The maleic anhydride-modified polyolefin is a compound obtained by modifying a polyolefin rubber such as polybutadiene rubber (preferably liquid polybutadiene rubber) with maleic anhydride. The maleic anhydride-modified polyolefin is not particularly limited, but for example, maleic anhydride-modified polybutadiene, maleic anhydride-modified polypropylene, etc. can be used, and among these, maleic anhydride-modified polybutadiene is preferred.

[0014] The number average molecular weight (Mn) of the maleic anhydride modified polyolefin is not particularly limited, but is preferably 2,000 or more and 10,000 or less, and may be 2,500 or more or 6,000 or less within this range. The number of maleic acid groups in the maleic anhydride modified polyolefin is preferably 2 or more, and may be 20 or less, 15 or less, 12 or less, or 10 or less.

[0015] The acid value of the maleic anhydride modified polyolefin is preferably from 10 to 200 mgKOH / g, more preferably from 10 to 120 mgKOH / g, and even more preferably from 30 to 100 mgKOH / g.

[0016] In the maleic anhydride modified polybutadiene, the content (composition ratio) of 1,2 vinyl groups in the butadiene skeleton is preferably in the range of 5 to 80%, more preferably in the range of 10 to 60%, and even more preferably in the range of 15 to 30%.

[0017] The physical properties of the maleic anhydride-modified polyolefin, such as the molecular weight and acid value, may be measured by a conventionally known method, or may be values ​​listed in the product catalog.

[0018] The maleic anhydride-modified polybutadiene is not particularly limited, but specific examples include Ricon130MA8, Ricon130MA13, Ricon130MA20, Ricon131MA5, Ricon131MA10, and Ricon131MA17, which are sold as the Ricon (registered trademark) series (CRAY VALLEY); POLYVEST MA75 and POLYVEST EP MA 120, which are sold as POLYVEST (registered trademark) (EVONIK); and AL-15MA, PM4-7.5MA, N4-5000-10MA, and N4-B-10MA, which are sold as Lithene ultra (registered trademark) (synthomer).

[0019] The maleic anhydride-modified polyolefin in the polyester resin may be used alone or in any combination of two or more.

[0020] The polyol is not particularly limited as long as it is a compound having two or more hydroxyl groups and is used in the production of polyester resins, and examples thereof include diols, triols, polyhydric alcohols having four or more hydroxyl groups, polyether polyols, polyester polyols, polylactone polyols, polycarbonate polyols, and polyolefin polyols. Among these, polyester polyols, polycarbonate polyols, and polyolefin polyols are preferably used, and polyester polyols and polyolefin polyols are more preferably used. The polyester polyols and polyolefin polyols may be used alone or in combination of two or more kinds, or both the polyester polyols and the polyolefin polyols may be used in combination of one or two or more kinds. Furthermore, castor oil polyols may be used as the polyester polyol. The polyether polyols, polyester polyols, polylactone polyols, and polycarbonate polyols are not particularly limited, but for example, polyols described in JP 2020-143186 A may be used, and the polyester polyols are not particularly limited, but for example, polyols described in JP 2019-183125 A may be used.

[0021] Examples of diols include compounds having two hydroxyl groups in the molecule, such as ethylene glycol, diethylene glycol, 1,2-propanediol (propylene glycol), dipropylene glycol, 1,3-propanediol, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, 2-methyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol (neopentyl glycol), 2-butyl-2-ethoxybenzoate ... Examples of the cyclohexane-1,4-diol include cyclohexane-1,4-diol, cyclohexane-1,4-dimethanol, ...diol, cyclohexane-1,4-diol, cyclohexane-1,4-dimethanol, cyclohexane-1,4-diol, cyclohexane-1,4-diol, cyclohexane-1,4-diol, cyclohexane-1,4-dimethanol, cyclohexane-1,4-di

[0022] Examples of triols include compounds having three hydroxyl groups in the molecule, such as trimethylolpropane, glycerin, 1,2,4-butanetriol, hexanetriol, and benzyltriol. As the polyol, a polyhydric alcohol having four or more hydroxyl groups in the molecule, such as pentaerythritol, may be used.

[0023] Examples of polyether polyols include polymers formed by ether bonds of diols, and specific examples include polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.

[0024] Examples of polyester polyols include esters of polyols such as sebacic acid-based polyester polyols and adipic acid-based polyester polyols with dicarboxylic acids, and esters of dimer acid with castor oil polyols.

[0025] As the polyol in the polyester polyol, the compounds described above as polyols may be used, but examples thereof include ethylene glycol, diethylene glycol, 1,3-butanediol, 1,4-butanediol, neopentyl glycol, 3-methyl-1,5-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,8-octanediol, 1,9-nonanediol, 2-methyl-1,8-octanediol, 1,8-decanediol, and octadecanediol.

[0026] Examples of dicarboxylic acids in polyester polyols include succinic acid, methylsuccinic acid, maleic acid, adipic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, 1,12-dodecanedioic acid, 1,14-tetradecanedioic acid, dimer acid, 2-methyl-1,4-cyclohexanedicarboxylic acid, 2-ethyl-1,4-cyclohexanedicarboxylic acid, terephthalic acid, isophthalic acid, phthalic acid, isophthalic acid, terephthalic acid, hexahydroterephthalic acid, hexahydroisophthalic acid, 1,4-naphthalenedicarboxylic acid, 4,4'-biphenyldicarboxylic acid, and acid anhydrides thereof. Examples of sebacic acid-based polyester polyols include polyester polyols containing at least an acid component containing sebacic acid and a polyol, and examples of adipic acid-based polyester polyols include polyester polyols containing at least an acid component containing adipic acid and a polyol.

[0027] Examples of dimer acids include dimers obtained by polymerization of unsaturated fatty acids such as linoleic acid, oleic acid, elaidic acid, and tall oil fatty acid. The castor oil polyol may be, for example, castor oil, partially dehydrated castor oil, partially acylated castor oil, castor oil, hydrogenated castor oil, or modified products thereof. When the castor oil polyol is a modified product, it may be a polyester polyol obtained by transesterification of castor oil, partially dehydrated castor oil, partially acylated castor oil, castor oil, or hydrogenated castor oil with a polyether polyol or polyol, and examples thereof include esters of castor oil fatty acid or hydrogenated castor oil fatty acid with a polyether polyol or polyol.

[0028] The polyester polyol is not particularly limited, but specific examples include the URIC H series (e.g., H-30, H-102, H-420), URIC AC series (e.g., AC-005), and URIC Y series (e.g., Y-403, Y-406) sold by URIC (Ito Oil Mills, Ltd.).

[0029] Examples of polylactone polyols include polycaprolactone polyols and polyvalerolactone polyols obtained by ring-opening polymerization of cyclic ester monomers such as ε-caprolactone and δ-valerolactone.

[0030] Examples of polycarbonate polyols include polymers of polyols and carbonates. The polyol in the polycarbonate polyol may be any of the compounds described above as polyols, but examples include ethylene glycol, diethylene glycol, 1,3-butanediol, 1,4-butanediol, neopentyl glycol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,8-octanediol, 1,9-nonanediol, 2-methyl-1,8-octanediol, 1,8-decanediol, octadecanediol, glycerin, trimethylolpropane, pentaerythritol, hexanetriol, and polypropylene glycol.

[0031] Examples of carbonates in the polycarbonate polyol include methyl carbonate, dimethyl carbonate, ethyl carbonate, diethyl carbonate, cyclocarbonate, diphenyl carbonate, ethylene carbonate, propylene carbonate, and phosgene.

[0032] The polycarbonate polyol may be prepared, for example, by a dealcoholization reaction or a dephenolization reaction between a polyol and a carbonate, or by a transesterification reaction using a polyalcohol with a high molecular weight polycarbonate polyol. The polycarbonate polyol is not particularly limited, but specific examples include polycarbonate diols sold as Duranol (Asahi Kasei Corporation) and ETERNACOLL (registered trademark) UH, UHC, UC, UM, PH, and UP series (Ube Industries, Ltd.). Among these, examples include homopolymerized or copolymerized polycarbonate diols using 1,5-pentanediol or 1,6-hexanediol as the main skeleton, and may be caprolactone-modified polycarbonate diols.

[0033] Examples of polyolefin polyols include polybutadiene polyols and polyisoprene polyols, with polybutadiene polyols being preferred. The polyolefin polyol may be a hydrogenated polyolefin polyol.

[0034] The polybutadiene polyol is not particularly limited, but specific examples include R-45HT and R-15HT sold as Poly bd (hydroxyl-terminated liquid polybutadiene, Idemitsu Kosan Co., Ltd.), POLYVEST (registered trademark) HT sold as POLYVEST (registered trademark) (EVONIK), G-1000, G-2000, and G-3000 sold as NISSO-PB (Nippon Soda Co., Ltd.), and LBH2000, LBH-P2000, LBH3000, and LBH-P3000 sold as Krasol (CRAY VALLEY). The polybutadiene polyol may be a hydrogenated polybutadiene polyol. The hydrogenated polybutadiene polyol is not particularly limited, but specific examples include GI-1000, GI-2000, and GI-3000 sold as NISSO-PB (Nippon Soda Co., Ltd.), and HLBH2000 and HLBH-P3000 sold as Krasol (CRAY VALLEY).

[0035] The polyisoprene polyol is not particularly limited, but specific examples include Poly ip (hydroxyl-terminated liquid polyisoprene, Idemitsu Kosan Co., Ltd.). The polyisoprene polyol may be a hydrogenated polyisoprene polyol, and the hydrogenated polyisoprene polyol is not particularly limited, but specific examples thereof include EPOL (hydroxyl-terminated liquid polyolefin, Idemitsu Kosan Co., Ltd.).

[0036] From the viewpoints of reactivity and workability, the molecular weight of the polyol is preferably 100 to 10,000, more preferably 200 to 5,000, and even more preferably 300 to 3,000. Within this range, the number average molecular weight may be 500 or more, or 800 or more. The viscosity of the polyol at 25°C is preferably 100 Pa·s or less, more preferably 50 Pa·s or less, and even more preferably 10 Pa·s or less. The hydroxyl value of the polyol is preferably from 10 to 1000 mgKOH / g, more preferably from 20 to 500 mgKOH / g, and even more preferably from 40 to 300 mgKOH / g. The average number of functional groups of the polyol is preferably 1 or more and 6 or less, more preferably 1.5 or more and 5 or less, and even more preferably 2 or more and 3 or less. When polybutadiene polyol is used as the polyol, the iodine value of the polybutadiene polyol is within a range of 1 to 1000 g / 100 g, and preferably within a range of 5 to 500 g / 100 g. The molecular weight, viscosity, hydroxyl value, average functionality, and iodine value of the polyol may be measured by a conventionally known method, or may be values ​​listed in the product catalog.

[0037] The polyol in the polyester resin may be used alone or in any combination of two or more kinds.

[0038] (plasticizer) In this embodiment, the resin composition may contain a plasticizer. The plasticizer is not particularly limited, and the plasticizers described below may be used. When the polyester resin in the present embodiment contains a plasticizer, the plasticizer may be used alone or in any combination of two or more kinds.

[0039] Examples of hydrocarbon plasticizers include naphthenic hydrocarbons, aromatic hydrocarbons, paraffinic hydrocarbons, olefinic hydrocarbons, etc. Among these, naphthenic hydrocarbons and aromatic hydrocarbons are preferred.

[0040] The naphthenic hydrocarbon is not particularly limited as long as it has at least one saturated ring in the molecule, and examples thereof include dicyclopentadiene. The naphthenic hydrocarbon is not particularly limited, but specific examples include SUN 6 INSULATING OIL (Japan Sun Oil Co., Ltd.), Diana Process Oil NS (90S, 100), Diana Process Oil NM (280), Diana Process Oil NP (24), 90S, 100), Diana Process Oil NR (26) (all of which are manufactured by Idemitsu Kosan Co., Ltd.), the SUNTHENE series (e.g., 410, 450, 4240, 250J), and the SUPURE series (e.g., N90, NX90) (all of which are manufactured by Japan Sun Oil Co., Ltd.).

[0041] The aromatic hydrocarbon is not particularly limited as long as it has at least one aromatic ring in the molecule. The aromatic hydrocarbon is not particularly limited, but specific examples include Diana Process Oil AC (460), Diana Process Oil AH (16) (both manufactured by Idemitsu Kosan Co., Ltd.), and JSO AROMA 790 (Japan Sun Oil Co., Ltd.).

[0042] Examples of paraffinic hydrocarbons include normal paraffinic hydrocarbons and isoparaffinic hydrocarbons, and include isoprene, piperylene, styrene, vinyltoluene, indene, terpene resins (α-pinene, β-pinene, dipentene), aromatic modified terpene resins, and terpene phenol resins. The paraffinic hydrocarbon is not particularly limited, but specific examples include Diana Process Oil PW (90, 380) (Idemitsu Kosan Co., Ltd.), the SUNPAR series (e.g., 107, 150, 2280), and the SUPURE series (e.g., LW70, P100) (all manufactured by Japan Sun Oil Co., Ltd.). The hydrocarbon plasticizer may be a paraphene-naphthene hydrocarbon mixture.

[0043] Examples of olefin hydrocarbons include co-oligomers of ethylene and α-olefins, poly-α-olefins, and hydrogenated poly-α-olefins. The hydrogenation method is not particularly limited, and known methods can be used. Examples of olefinic hydrocarbons include, but are not limited to, α-olefins sold as Linearene 10 and Linearene 12 (Idemitsu Kosan Co., Ltd.), Durasyn (INEOS Oligomers), polyisoprene sold as Kurapren® LIR-30, Kurapren® LIR-410, Kurapren® UC-102M, and Kurapren® LIR-290 (Kuraray Co., Ltd.), polybutadiene sold as Kurapren® LBR-302, Kurapren® LBR-307, and Kurapren® LBR-352 (Kuraray Co., Ltd.), polystyrene butadiene sold as Kurapren® L-SBR-820 (Kuraray Co., Ltd.), and 1,2-polybutadiene homopolymer B series (e.g., B-1000 and B-3000) (Nippon Soda Co., Ltd.).

[0044] The ester-based plasticizer is not particularly limited as long as it contains an ester group, and examples thereof include phthalate ester-based plasticizers, adipate ester-based plasticizers, castor oil ester-based plasticizers, trimellitate ester-based plasticizers, and pyrrolimellitate ester-based plasticizers.

[0045] Examples of phthalate plasticizers include dioctyl phthalate, diisononyl phthalate (diisononyl phthalate), and diundecyl phthalate.

[0046] Examples of the adipate plasticizer include dioctyl adipate, diisononyl adipate, and diisodecyl adipate.

[0047] Examples of castor oil ester plasticizers include methyl acetylricinoleate, butyl acetylricinoleate, acetylated ricinoleic acid triglyceride, and acetylated polyricinoleic acid triglyceride.

[0048] Examples of trimellitic acid ester plasticizers include trioctyl trimellitate and triisononyl trimellitate.

[0049] Examples of the pyrrolimellic acid ester plasticizer include tetraoctyl pyromellitate and tetraisononyl pyromellitate.

[0050] The content of the plasticizer can be appropriately set depending on the type of plasticizer. From the viewpoint of insulation properties and hardness, the content of the plasticizer is preferably 50% by mass or less, more preferably 1 to 30% by mass, and even more preferably 10 to 30% by mass, relative to 100% by mass of the resin composition.

[0051] (carbon-nitrogen bond) In this embodiment, the polyester resin further has a carbon-nitrogen bond in its structure. The carbon-nitrogen bond is a bond contained in the polyester resin in addition to the ester bond formed by the bond between the maleic anhydride-modified polyolefin and the polyol. The carbon-nitrogen bond is formed by further adding and reacting a nitrogen-containing compound, which will be described in detail below, in addition to the maleic anhydride-modified polyolefin and polyol in the production of a polyester resin, and is a bond formed by bonding the maleic anhydride-modified polyolefin or polyol with the nitrogen-containing compound. In this embodiment, it may be confirmed that the polyester resin is a resin obtained by a further reaction with a nitrogen-containing compound by confirming that the polyester resin further has a carbon-nitrogen bond in the structure.

[0052] The carbon-nitrogen bond in the polyester resin structure is a bond formed by bonding a maleic anhydride-modified polyolefin or a polyol with a nitrogen-containing compound, and examples thereof include an amide bond, a urethane bond, and a urea bond. Of these, a urea bond is preferred.

[0053] The carbon-nitrogen bond content is not particularly limited, but can be calculated, for example, as follows. Ratio of carbon-nitrogen bonds to ester groups (%) = theoretical carbon-nitrogen bond amount / [theoretical ester group amount + theoretical carbon-nitrogen bond amount] x 100 During the ceremony, The theoretical carbon-nitrogen bond amount corresponds to the number of moles of the functional group of the nitrogen-containing compound, The theoretical amount of ester groups corresponds to the number of moles of hydroxyl groups in the polyol. The above formula calculates the ratio of carbon-nitrogen bonds to ester groups on the assumption that all functional groups of the nitrogen-containing compound react completely. In this embodiment, the content of carbon-nitrogen bonds is 1 to 60%, preferably 1 to 30%, and more preferably 1 to 20%, as a ratio calculated by the above calculation.

[0054] The presence or absence of a carbon-nitrogen bond can be confirmed, for example, by the presence or absence of a predetermined peak in the IR spectrum of FT-IR analysis. The presence or absence of a urethane bond or a urea bond is not particularly limited, but may be determined by the presence or absence of a urethane bond or a urea bond in the IR spectrum of FT-IR analysis. -1 , 730~790cm -1 This can be confirmed by the presence or absence of a peak. The presence or absence of an amide bond can be determined, for example, by the FT-IR analysis of the IR spectrum at 1515 to 1680 cm -1 This can be confirmed by the presence or absence of a peak.

[0055] (nitrogen-containing compounds) In this embodiment, the polyester resin is further reacted with a nitrogen-containing compound. Here, the polyester resin is a polymer of maleic anhydride-modified polyolefin, polyol, and nitrogen-containing compound. The nitrogen-containing compound is not particularly limited as long as it contains a nitrogen atom in the molecule and can be introduced into the structure of the polyester resin, but in this embodiment, it is a compound that can be bonded to a maleic anhydride-modified polyolefin or a polyol. The nitrogen-containing compound may be, for example, at least one selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds, isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds. Among these, carbodiimide compounds, oxazolidine compounds, amine compounds, and isocyanate compounds are preferred, carbodiimide compounds, oxazolidine compounds, and isocyanate compounds are more preferred, and carbodiimide compounds are even more preferred. The nitrogen-containing compounds may be used alone or in any combination of two or more.

[0056] When the nitrogen-containing compound is a carbodiimide compound, the carbon-nitrogen bond in the structure of the polyester resin is a urea bond. When a carbodiimide compound is used as the nitrogen-containing compound, theoretically, an ester bond formed by the reaction of maleic anhydride with a polyol and a free carboxy group derived from maleic anhydride are present, and the carboxy group reacts with the carbodiimide group to form a urea bond. When the nitrogen-containing compound is an oxazolidine compound, an amine compound, or a melamine cyanurate compound, the carbon-nitrogen bond in the polyester resin structure is an amide bond. When an oxazolidine compound is used as the nitrogen-containing compound, the oxazolidine compound is theoretically hydrolyzed and converted into an amine compound, which reacts with maleic anhydride to form an amide bond. When an amine compound is used as the nitrogen-containing compound, the amine compound theoretically reacts with maleic anhydride to form an amide bond. When a melamine cyanurate compound is used as the nitrogen-containing compound, the melamine cyanurate compound is a salt of melamine and cyanuric acid, and therefore, theoretically, the amino group of melamine reacts with maleic anhydride to form an amide bond. When the nitrogen-containing compound is an isocyanate compound, the carbon-nitrogen bond in the structure of the polyester resin is a urethane bond. When an isocyanate compound is used as the nitrogen-containing compound, a urethane bond is theoretically formed by the reaction between the isocyanate and the hydroxyl group of the polyol. When the nitrogen-containing compound is a cyanate compound, a urea compound, a urethane compound, an amide compound, or a cyan compound, the carbon-nitrogen bond in the polyester resin structure is formed appropriately depending on the reactive group possessed by each nitrogen-containing compound.

[0057] A carbodiimide compound is a compound having a carbodiimide group in the molecule. The carbodiimide compound may be any of polycarbodiimide, monocarbodiimide, and cyclic carbodiimide, but is preferably a compound having two or more carbodiimide groups in the molecule. The carbodiimide compound may be a polycarbodiimide, which is a polymer having a carbodiimide group represented by "-N=C=N-" in the molecule. Examples of the carbodiimide compound include N,N'-di-o-toluylcarbodiimide, N,N'-diphenylcarbodiimide, N,N'-di-2,6-dimethylphenylcarbodiimide, N,N'-bis(2,6-diisopropylphenyl)carbodiimide, N,N'-dioctyldecylcarbodiimide, N-triyl-N'-cyclohexylcarbodiimide, N,N'-di-2,2-di-tert-butylphenylcarbodiimide, N-triyl-N'-phenylcarbodiimide, N,N'-di-p-nitrophenylcarbodiimide, N,N'-di-p-aminophenylcarbodiimide, N,N'-di-p-hydroxyphenylcarbodiimide, N,N'-dicyclohexylcarbodiimide, and N,N'-di-p-toluylcarbodiimide.

[0058] The carbodiimide compound is not particularly limited, but specific examples include Carbodilite V-02B, Carbodilite V-03, Carbodilite V-04K, Carbodilite V-07, Carbodilite V-09, Carbodilite 10M-SP, and Carbodilite 10M-SP (all manufactured by Nisshinbo Chemical Inc.), Stabaxol P, Stabaxol P400, and Hi-Kasil 510 (all manufactured by Lanxess KK).

[0059] The oxazolidine compound is a compound having an oxazolidine ring in the molecule, and is preferably a compound having two or more oxazolidine rings in the molecule. Examples of the oxazolidine compound include N-hydroxyalkyl oxazolidine, oxazolidine silyl ether, carbonate oxazolidine, ester oxazolidine, etc. More specific examples include 2-isopropyl-3-(2-hydroxyethyl) oxazolidine, 2-phenyl-3-(2-hydroxyethyl) oxazolidine, 2-(1-methylbutyl)-3-(2-hydroxyethyl) oxazolidine, 2-isopropyl-3-(2-hydroxypropyl)-5-methyl oxazolidine, etc. The oxazolidine compound is not particularly limited, but specific examples include Hardener (Bayer Yakuhin, Ltd.) and the URIC LC series (e.g., LC-555, LC-500) sold as URIC (Ito Oil Mills, Ltd.).

[0060] The amine compound is a compound having an amino group in the molecule, and is preferably a compound having two or more amino groups in the molecule. Examples of the amine compound include aliphatic primary amines such as methylamine, ethylamine, propylamine, isopropylamine, and butylamine; aliphatic secondary amines such as dimethylamine, diethylamine, dipropylamine, diisopropylamine, and dibutylamine; aliphatic tertiary amines such as triamylamine, trihexylamine, and trioctylamine; aliphatic unsaturated amines such as triallylamine and oleylamine; aromatic amines such as aniline, laurylaniline, stearylaniline, and triphenylamine; heterocyclic compounds such as pyridine, 2-aminopyridine, 2-(dimethylamino)pyridine, 4-(dimethylaminopyridine), 2-hydroxypyridine, and imidazole; monoethanolamine, diethanolamine, triethanolamine, and 3-hydroxypropylamine.

[0061] The amine compound may be a diamine compound having two amino groups in the molecule. Examples of diamine compounds include aliphatic diamines and alicyclic diamines such as ethylenediamine, 1,1-meta-xylylenediamine, 1,3-propanediamine, tetramethylenediamine, pentamethylenediamine, hexamethylenediamine, octamethylenediamine, nonamethylenediamine, 4,4-diaminoheptamethylenediamine, 1,4-diaminocyclohexane, isophoronediamine, tetrahydrodicyclopentadienylenediamine, hexahydro-4,7-methanoindanylenediamine, and 4,4'-methylenebis(cyclohexylamine). Formula diamine, p-phenylenediamine, m-phenylenediamine, 4,4'-diaminodiphenylmethane, 4,4'-diaminodiphenylethane, 4,4'-diaminodiphenyl ether, 4,4'-diaminodiphenyl sulfide, 4,4'-diaminodiphenyl sulfone, 1,5-diaminonaphthalene, 3,3-dimethyl-4,4'-diaminobiphenyl, 5-amino-1-(4'-aminophenyl)-1,3,3-trimethylindan, 6-amino-1-(4'-aminophenyl)-1,3,3-trimethylindan, 4,4'-diaminobenzanilide lido, 3,5-diamino-3'-trifluoromethylbenzanilide, 3,5-diamino-4'-trifluoromethylbenzanilide, 3,4'-diaminodiphenyl ether, 2,7-diaminofluorene, 2,2-bis(4-aminophenyl)hexafluoropropane, 4,4'-methylene-bis(2-chloroaniline), 2,2',5,5'-tetrachloro-4,4'-diaminobiphenyl, 2,2'-dichloro-4,4'-diamino-5,5'-dimethoxybiphenyl, 3,3'-dimethoxy-4,4'-diaminobiphenyl, 4,4'-diamino -2,2'-bis(trifluoromethyl)biphenyl, 2,2-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(4-aminophenoxy)phenyl]hexafluoropropane, 1,4-bis(4-aminophenoxy)benzene, 4,4'-bis(4-aminophenoxy)-biphenyl, 1,3'-bis(4-aminophenoxy)benzene, 9,9-bis(4-aminophenyl)fluorene, 4,4'-(p-phenyleneisopropylidene)bisaniline, 4,4'-(m-phenyleneisopropylidene)bisaniline, 2,2'-bis[4-(4-amino-2-trifluoromethylphenoxy)phenyl]hexafluoropropane, 4,4'-bis[4-(4-amino-2-trifluoromethyl)phenoxy]-octafluorobiphenyl, 4,4'-methylenebis[N-(1-methylpropane, aromatic diamines such as phenyl)aniline, dimethylthiotoluenediamine, and diethyltoluenediamine; The diamine compound may be an aromatic diamine known as Ethacure (Mitsui Fine Chemicals, Inc.).

[0062] The amine compound may be a compound having three or more amino groups in the molecule. Examples of such amine compounds include diethylenetriamine, triethylenetetramine, 3-methoxypropylamine, 3-lauryloxypropylamine, guanidine, diphenylguanidine and other guanidines, butylbiguanide, 1-o-tolylbiguanide, 1-phenylbiguanide and other biguanides, and the like.

[0063] The isocyanate compound is a compound having an isocyanate group in the molecule, and is preferably a compound having two or more isocyanate groups in the molecule. Examples of the isocyanate compound include aliphatic isocyanate compounds such as tetramethylene diisocyanate, dodecamethylene diisocyanate, 1,6-hexamethylene diisocyanate (HDI), 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, lysine diisocyanate, 2-methylpentane-1,5-diisocyanate, and 3-methylpentane-1,5-diisocyanate; isophorone diisocyanate, hydrogenated xylylene diisocyanate, 4,4'-dicyclohexylmethane diisocyanate (hydrogenated product of 4,4'-diphenylmethane diisocyanate, HMDI); 1,4-cyclohexane diisocyanate; Examples of the isocyanate include alicyclic isocyanate compounds such as methylcyclohexylene diisocyanate and 1,3-bis(isocyanatemethyl)cyclohexane, tolylene diisocyanate, 2,2'-diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate, 4,4'-diphenylmethane diisocyanate (MDI), 4,4'-dibenzyl diisocyanate, 1,5-naphthylene diisocyanate, xylylene diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, dialkyldiphenylmethane diisocyanate, tetraalkyldiphenylmethane diisocyanate, and α,α,α,α-tetramethylxylylene diisocyanate.

[0064] The isocyanate compound is not particularly limited, but specific examples thereof include TPA-100, TKA-100, TSA-100, TSS-100, TSE-100, and TLA-100, which are sold under the name Duranate (registered trademark) (Asahi Chemical Industry Co., Ltd.), Desmodur (registered trademark) N3390 (Sumitomo Bayer Urethane Co., Ltd.), and Coronate (registered trademark) 1390, Coronate (registered trademark) 1391, Coronate (registered trademark) 1569, Coronate (registered trademark) 1050, Coronate (registered trademark) 1057, and Coronate (registered trademark) 1569, which are sold under the name Coronate (registered trademark) (Tosoh Corporation). Examples of suitable acrylic resins include: Woodcure 220 and Woodcure 300 sold as Woodcure, Takenate D170N (Takeda Pharmaceutical Co., Ltd.), Burnock DN980 (DIC Corporation), Millionate NM, Millionate MTL, Millionate MR-100, Millionate MR-200, and Coronate MX (Tosoh Corporation) sold as Millionate NM, Millionate MR-100, and Millionate MR-200. Examples of suitable acrylic resins include Luplanate MI, Luplanate 20S, and Luplanate M5S sold as Luplanate (BASF INOAC Polyurethanes Co., Ltd.).

[0065] Examples of melamine cyanurate compounds include N,N'-(6-amino-1,3,5-triazine-2,4-diyl)dipropionamide, N,N'-(6-amino-1,3,5-triazine-2,4-diyl)dibutylamide, N,N'-(6-amino-1,3,5-triazine-2,4-diyl)dihexanamide, and N,N'-(6-amino-1,3,5-triazine-2,4-diyl)dioctanamide.

[0066] The melamine cyanurate compound is not particularly limited, but specific examples include MC-4000, MC-4500, MC-6000 (all manufactured by Nissan Chemical Industries, Ltd.), MCA-0, MCA-1 (all manufactured by Mitsubishi Chemical Industries, Ltd.), and the like.

[0067] A urea compound is a compound having a urea bond in the molecule. Examples of the urea compound include compounds obtained by reacting the above-mentioned isocyanate compounds with the above-mentioned amine compounds, prepolymers thereof, etc. More specific examples include 3-phenyl-1,1-dimethylurea, 3-(3-chloro-4-methylphenyl)-1,1-dimethylurea, 3-(3,4-dichlorophenyl)-1,1-dimethylurea, toluenebisdimethylurea, etc. The urea compound is not particularly limited, but specific examples include DCMU-99 (Hodogaya Chemical Co., Ltd.), Omicure (registered trademark) 24 (PTI Japan Co., Ltd.), DCMU, U-CAT3512T, and U-CAT3503N (all San-Apro Co., Ltd.).

[0068] A urethane compound is a compound having a urethane bond in the molecule. Examples of the urethane compound include a compound obtained by reacting the above-mentioned isocyanate compound with the above-mentioned polyol, and a prepolymer thereof. The urethane compound is not particularly limited, but specific examples include UXE-3011, UXE-3012, and UXE-3024 (all manufactured by Nippon Kayaku Co., Ltd.).

[0069] An amide compound is a compound having an amide bond in the molecule. Examples of the amide compound include dicyandiamide, N,N-dimethylformamide, N,N-dimethylacetamide, and N,N-diphenylacetamide. The amide compound is not particularly limited, but specific examples include aramid fibers sold under the names Alflow (registered trademark) (NOF Corporation), Twaron (registered trademark), Technora (registered trademark), and Conex (registered trademark) (Teijin Limited).

[0070] A cyanide compound is a compound that contains a cyano group (-CN) in the molecule. Examples of the cyanide compound include dicyandiamide and phosphazenenitrile. The cyanide compound is not particularly limited, but specific examples include Rabitol FP-300B (Fushimi Pharmaceutical Co., Ltd.).

[0071] The amount of the nitrogen-containing compound to be added is not particularly limited, and can be appropriately set depending on the type of nitrogen-containing compound. The amount of the nitrogen-containing compound added is preferably 1 to 20% by mass, more preferably 1 to 15% by mass, and even more preferably 1 to 10% by mass, relative to 100% by mass of the polyester resin.

[0072] (inorganic filler) In this embodiment, the resin composition may contain an inorganic filler. The inorganic filler is not particularly limited, but examples thereof include metal hydrates, metal oxides, metal carbonate compounds, metal nitrides, zeolites, talc, carbon black, and fibrous fillers.

[0073] Examples of metal hydrates include aluminum hydroxide, magnesium hydroxide, etc. Of the metal hydrates, aluminum hydroxide is preferred.

[0074] The aluminum hydroxide is not particularly limited, but specific examples include B303 (average particle size 23 μm), B153 (average particle size 12 μm), B103 (average particle size 7 μm) (all manufactured by Nippon Light Metal Co., Ltd.), C-310 (average particle size 10 μm), and C-301N (average particle size 1.5 μm) (all manufactured by Sumitomo Chemical Co., Ltd.).

[0075] Examples of metal oxides include aluminum oxide, magnesium oxide, and titanium oxide.

[0076] The aluminum oxide is not particularly limited, but specific examples include DAW-45 (average particle size 46.1 μm), DAW-05 (average particle size 6.4 μm), ASFP-20 (average particle size 0.3 μm) (all manufactured by Denka Company Limited), AL-43A (average particle size 50 μm), AA-3 (average particle size 3.5 μm), AKP-50 (average particle size 0.2 μm) (all manufactured by Sumitomo Chemical Co., Ltd.), CB A50S (average particle size 50 μm), CB-P05 (average particle size 4 μm) (all manufactured by Showa Denko K.K.).

[0077] Examples of metal carbonate compounds include calcium carbonate, aluminum carbonate, magnesium carbonate, barium carbonate, zinc carbonate, iron carbonate, cobalt carbonate, and titanium carbonate.

[0078] The calcium carbonate is not particularly limited, but specific examples include NS#1000, NS#400, NS#100, NCC#45, NCC#410, and NCC#1010 (all manufactured by Nitto Funka Kogyo Co., Ltd.), Hakuenka CC, Hakuenka CC-R, and Hakuenka CCR-S (all manufactured by Shiraishi Calcium Co., Ltd.), and the like.

[0079] Examples of metal nitrides include silicon dioxide (silica), boron nitride, aluminum nitride, and silicon nitride.

[0080] Zeolites include, for example, silicates of alkali metals or alkaline earth metals. Examples of the alkali metals or alkaline earth metals in zeolites include potassium, sodium, calcium, and lithium.

[0081] The talc is not particularly limited, but specific examples include SG-95, P-8, P-6, and K-1 sold as Micro Ace (registered trademark); SWE, MS-K, MS-P, and SSS sold as general-purpose talc; SG-2000, SG-200, and SG-200N15 sold as ultrafine powder talc; and Nano Ace D-600, Nano Ace D-800, and Nano Ace D-1000 sold as NANO ACE (registered trademark) (all from Nippon Talc Co., Ltd.).

[0082] Examples of fibrous fillers include glass fiber and carbon fiber.

[0083] The inorganic fillers may be used alone or in any combination of two or more.

[0084] The content of the inorganic filler can be appropriately set depending on the type of inorganic filler. From the viewpoint of reinforcing effect and workability, the content of the inorganic filler is preferably 0 to 70% by mass, and more preferably 20 to 70% by mass, relative to 100% by mass of the resin composition.

[0085] In this embodiment, the resin composition may contain, as necessary, various additives such as halogen-based, red phosphorus, phosphate ester, phosphazene, nitrogen-based, and metal hydrate flame retardants, antimony and other flame retardant assistants, antioxidants, tackifiers, curing accelerators, colorants, chain extenders, crosslinking agents, fillers, pigments, ultraviolet absorbers, moisture absorbers, antifungal agents, and silane coupling agents. The resin composition may also contain a catalyst used in producing the resin. The content of these components may be appropriately determined depending on the intended use.

[0086] In this embodiment, the resin composition may be a two-component composition containing a first component (sometimes referred to as the "first component") containing at least a maleic anhydride-modified polyolefin as a so-called curing agent, and a second component (sometimes referred to as the "second component") containing at least a polyol as a main component. In this case, the plasticizer, nitrogen-containing compound, inorganic filler, and other components may be contained in either the first component or the second component, or may be contained in either component in any desired amount.

[0087] In the present embodiment, the content of the nitrogen-containing compound in the resin composition can be set appropriately in either the first component or the second component, or even if the nitrogen-containing compound is contained in both components.

[0088] When the resin composition is a two-component type, the blending ratio of the first component to the second component can be changed as appropriate depending on the resin composition, but the blending ratio of the first component to the second component is preferably 1:5 to 5:1, and more preferably 1:2 to 2:1.

[0089] (Method of producing resin composition) The method for producing the resin composition of the present embodiment is not particularly limited, and the resin composition can be produced according to or in accordance with a known method as appropriate. The nitrogen-containing compound and other components may be mixed simultaneously or stepwise as appropriate. Examples of methods for producing a two-component resin composition include a method including a step of preparing a first component, a step of preparing a second component, and a step of mixing the first component and the second component to obtain a resin composition. The method for producing a two-component resin composition may further include, for example, a step of adding a nitrogen-containing compound to the first component and / or the second component and reacting them. The method for producing a two-component resin composition may further include, for example, a step of adding a nitrogen-containing compound to a resin composition obtained by mixing the first component and the second component, and reacting the mixture. In this embodiment, the two-component resin composition also includes a case where the first component and the second component exist independently before being mixed. [Example]

[0090] The present invention will be described in more detail with reference to examples and comparative examples. Therefore, there is no limitation whatsoever.

[0091] <Resin composition materials> The following materials were used: (A) Maleic anhydride modified polyolefin (A-1): Maleic anhydride-modified polybutadiene, number average molecular weight 2700, number of functional groups 2, acid value 42 mg KOH / g (Cray Valley USA, LLC, product name: Ricon 130MA8) (A-2): Maleic anhydride-modified liquid polybutadiene, number average molecular weight 2900, number of functional groups 4, acid value 77 mg KOH / g (Cray Valley USA, LLC, product name: Ricon 130MA13) (B) Polyol (B-1): Polyolefin polyol (hydroxyl-terminated liquid polybutadiene), number average molecular weight 2800, iodine value 398, hydroxyl value 46 mg KOH / g (JIS K 1557), functionality 2.2 (Idemitsu Kosan Co., Ltd., product name: Poly bd R-45 HT) (B-2): Polyester polyol, number average molecular weight 933, hydroxyl value 160 mgKOH / g, viscosity 660 mPa·s (25°C), functionality 2.7 (Ito Oil Mills, product name: URIC H-30) (B-3): Polyester polyol, average molecular weight 900, hydroxyl value 320 mg KOH / g, viscosity 1100 mPa·s (25°C), number of functional groups 5 (Ito Oil Mills, product name: URIC H-102) (B-4): Polycarbonate polyol (polycarbonate diol), average molecular weight 1000, hydroxyl value 110 mgKOH / g, viscosity 200 mPa·s (75°C), functionality 2.0 (Ube Industries, Ltd., product name: UHC50-100) (C) Nitrogen-containing compounds (C-1): Carbodiimide, viscosity 140 Pa·s (20°C), carbodiimide equivalent 600 (Nisshinbo Chemical Inc., product name: Carbodilite V-02B) (C-2): Oxazolindine, viscosity 8,000 mPa·s, number of oxazolidine functional groups 2, molecular weight 500 (Ito Oil Mills, product name: URIC LC-555) (C-3): DETDA (diethyltoluenediamine), viscosity 280 mPa·s, amine value 631 mgKOH / g (Mitsui Chemicals Fine Co., Ltd., product name: Ethacure 100 Plus) (C-4): Isocyanate, viscosity 50 mPa·s, NCO content 32.0% (Tosoh Corporation, product name: Coronate 1390) (D) Plasticizer (hydrocarbon plasticizers) (D-1): Naphthenic hydrocarbon, specific gravity 0.93, pour point below -20°C (Japan Sun Oil Co., Ltd., product name: SUN 6 INSULATING OIL) (D-2): Aromatic hydrocarbon, density 1.02 g / cm 3 (15°C) (Idemitsu Kosan Co., Ltd., product name: Diana Process Oil AC-460) (ester plasticizer) (D-3): Diisononyl phthalate, specific gravity 0.98, pour point below -30°C (Shin-Nihon Rikagaku Co., Ltd., product name: Sanso Cizer DINP) (olefin plasticizer) (D-4): Polyα-olefin, specific gravity 0.83, pour point below -30°C (INEOS Oligomers, product name: Durasyn PaO 160 series 168) (E) Inorganic filler (E-1): Aluminum hydroxide, average particle size 7 μm (Nippon Light Metal Co., Ltd., product name: B103) (E-2): Calcium carbonate, average particle size 4.4 μm (Nitto Funka Kogyo Co., Ltd., product name: NCC#45)

[0092] <Pre-drying of inorganic fillers> The inorganic filler was placed in a metal container and left to stand at 130°C for 16 hours using a dryer (Espec Corporation, product name: Perfect Oven PH-102) to remove water adhering to the surface. <Production of Resin Composition> (Preparation of Resin Composition) The obtained curing agent and base agent were mixed for 2 minutes at 2000 rpm using a planetary centrifugal mixer (Thinky Corporation, product name: Awatori Rentaro) in the compounding ratio shown in Table 1. The obtained mixture was degassed to obtain a resin composition.

[0093] (Preparation of test piece A) The prepared resin composition was poured into a molding die having an inner diameter of 30 mm and a height of 10 mm, heated at 80° C. for 16 hours, and then left at room temperature for 1 day to cure, thereby obtaining test piece A.

[0094] (Preparation of comb-shaped test piece B) A comb-shaped test piece B was obtained in the same manner as test piece A, except that a molding die with an inner diameter of 100 mm and a height of 20 mm was used.

[0095] (heat resistance test) In accordance with JIS K 6253, the hardness (Type A) of test piece A (inner diameter 30 mm, height 10 mm) at a temperature of 23°C was measured using a hardness tester (Kobunshi Keiki Co., Ltd., product name: Asker Rubber Hardness Tester Type A). The hardness of test piece A immediately after heating at 80°C for 16 hours and leaving it at room temperature for 1 day was taken as the "initial hardness." After measuring the initial hardness, test piece A was heated in a dryer at 100°C for 100 hours, and the hardness of the test piece after cooling to 23°C was taken as the "final hardness" and measured in the same manner as the initial hardness. The "hardness change rate" was calculated from the initial hardness and final hardness according to the following formula. Hardness change rate (%) = [(final hardness - initial hardness) / initial hardness] x 10 The rate of change in hardness is preferably less than 40%, and may be 40% or more and less than 80%.

[0096] After the final hardness measurement, the surface deterioration of test piece A was evaluated. The evaluation criteria were as follows: Yes: The surface has changed in quality, the surface layer is hard, and a skin is stretched. Damage (such as tearing of the surface or holes) occurs when the tip of the hardness tester comes into contact with the surface during hardness measurement. None: No surface alteration and flexibility is maintained.

[0097] (Moisture resistance test) A humidity resistance test was carried out after 250 hours using a pressure cooker tester (conditions: 121°C, 100% RH), and after cooling to room temperature (23°C), the hardness of test piece A was measured and evaluated.

[0098] After the moisture resistance test, the surface deterioration of the test piece A was evaluated. The evaluation criteria were as follows: Yes: The surface has changed in quality, the surface layer is hard, and a skin is stretched. Damage (such as tearing of the surface or holes) occurs when the tip of the hardness tester comes into contact with the surface during hardness measurement. None: No surface alteration and flexibility is maintained.

[0099] (insulating) A high-temperature, high-humidity bias test was conducted using comb-shaped test piece B in a pressure cooker tester (conditions: 85°C, 85% RH) by applying 100 V. After 2000 hours, the test piece was removed and cooled to room temperature (23°C), and then the insulation resistance value (Ω) was measured to evaluate the insulation properties. The evaluation criteria were as follows: 〇: Insulation resistance value is 10GΩ or more ×: Insulation resistance is 10 GΩ or less

[0100] The results are shown in Tables 1 to 3.

[0101] [Table 1]

[0102] [Table 2]

[0103] [Table 3]

Claims

1. A resin composition containing a polyester resin obtained by reacting maleic anhydride-modified polybutadiene with a polyol, The polyester resin does not have a structure derived from a diamine or a crystalline polyester diol in its structure, (a) the resin composition contains a plasticizer; and / or (b-2) A resin composition obtained by further reacting a polyester resin with at least one nitrogen-containing compound selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds (excluding diamine compounds), isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds.

2. The resin composition according to claim 1 , further comprising a hydrocarbon-based plasticizer or an ester-based plasticizer.

3. The resin composition according to claim 1 , which comprises a naphthenic hydrocarbon or an aromatic hydrocarbon.

4. The resin composition according to claim 1 , which contains an amide bond, a urethane bond and / or a urea bond.

5. (a) the resin composition contains a plasticizer; and The resin composition according to claim 1, wherein the polyester resin (b-2) is obtained by further reacting with at least one nitrogen-containing compound selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds (excluding diamine compounds), isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds.

6. A resin composition according to any one of claims 1 to 5, comprising a polyester resin obtained by reacting maleic anhydride-modified polybutadiene, a polyol, and at least one nitrogen-containing compound selected from the group consisting of carbodiimide compounds, oxazolidine compounds, amine compounds (excluding diamine compounds), isocyanate compounds, melamine cyanurate compounds, cyanate compounds, urea compounds, urethane compounds, amide compounds, and cyan compounds, wherein the amount of the nitrogen-containing compound is 1 to 10 mass% relative to 100 mass% of the polyester resin.

7. The resin composition according to any one of claims 1 to 5, further comprising an inorganic filler.

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