JP2005161693A - Insert molded product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insert molded product excellent in high and low temperature impact characteristics and reduced in the occurring amount of a mold deposit at the time of molding. <P>SOLUTION: This insert molded product is constituted by the insert molding of a resin composition, which is obtained by compounding 5-200 pts.wt. of a fibrous reinforcing material (B) having a flat cross-sectional shape wherein the ratio of the long diameter (the longest straight line distance of a cross section) and short diameter (the longest straight line distance in the direction right-angled to the long diameter) of a cross section right-angled to a length direction is 1.3-10 and 1-25 pts.wt. of a thermoplastic elastomer (C) with 100 pts.wt. of a polyarylene sulfide resin (A), and a metal or an inorganic solid. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an insert-molded product obtained by insert-molding a specific resin composition and a metal or an inorganic solid, and more particularly to an insert-molded product with improved high and low temperature impact properties.

  The insert molding method is a molding method that takes advantage of the characteristics of the resin and the characteristics of the material of the metal or inorganic solid (hereinafter abbreviated as metal, etc.) and embeds the metal in the resin, such as automobile parts, electrical / electronic parts, and OA equipment parts. And is now one of the common molding methods.

  However, since the expansion and contraction rate (so-called linear expansion coefficient) due to temperature changes are extremely different between resin and metal, etc., the resin part of the molded product is thin, or there is a part with a large change in thickness and metal Etc. have sharp corners, they often have troubles such as cracking immediately after molding or cracking due to temperature changes during use. For this reason, the current situation is that the application and the shape of the molded product are considerably limited. Recently, plastics around the engine have been developed in the automobile field, and insert molded products have become important parts. Particularly for ignition-related parts, distributor parts, various sensor parts, various actuator parts, throttle parts, power module parts, ECU parts, various connector parts, etc., metal parts such as aluminum, copper, iron, brass, various alloys, metal terminals Many insert-molded products that are wrapped in polyarylene sulfide (hereinafter abbreviated as PAS) resin, represented by polyphenylene sulfide (hereinafter abbreviated as PPS) resin, have been studied. In addition to the fact that there are many wall thickness change parts, since the place of use is in the vicinity of the engine room and the temperature change is high, the performance required for the insert molded product is also high. Therefore, recently, there has been a strong demand for a resin that can withstand long-term changes in high and low temperatures, that is, a resin having excellent high and low temperature impact characteristics.

  Since PAS resin has high heat resistance, mechanical properties, chemical resistance, dimensional stability, and flame resistance, it can be used in electrical / electronic equipment component materials, automotive equipment component materials, chemical equipment component materials, etc. Although widely used, PAS resin has a drawback that it has poor toughness and is fragile, and has low reliability to withstand long-term high and low temperature changes of an insert molded product.

  As a conventional method for solving this problem, it is known to blend various elastomers. For example, Patent Document 1 proposes blending an olefin-based elastomer with a PPS resin, and Patent Document 2 proposes to use a specific elastomer and a filler in combination. Patent Document 3 proposes blending two types of elastomers. In order to obtain the desired high and low temperature impact characteristics, it is achieved by increasing the amount of the thermoplastic elastomer. However, since the process temperature of the PAS resin is 300 ° C. or higher, the thermoplastic elastomer is generally used at this high temperature. However, there is a problem that the mold mold deposit at the time of molding is remarkably increased. Patent Document 4 proposes to use a specific elastomer and silicone oil in combination as a method for solving this problem, but the improvement in high and low temperature impact characteristics is insufficient.

On the other hand, Patent Document 5 discloses an improvement under molding process conditions. Although this method is an effective method, there is a problem that a heat treatment process is required after molding in order to increase the physical properties and crystallinity of the PAS resin in order to mold with a low temperature mold, and the process becomes complicated.
Japanese Patent Laid-Open No. 10-249876 JP 2000-263586 A JP 2002-179914 A JP 2003-176410 A JP 2001-300787 A

  The object of the present invention is to solve the above-mentioned problems of the prior art and to provide a PAS resin insert molded article having improved high and low temperature impact properties.

  In view of the above problems, the present inventors have intensively studied to obtain an insert molded product excellent in high and low temperature impact characteristics. As a result, a flat fibrous reinforcing agent mainly composed of a PAS resin and having a specific cross-sectional shape is used. Compositions containing thermoplastic elastomers have significantly improved high and low temperature impact properties (especially when the resin is thin or the metal has sharp corners) without significant reduction in mechanical properties. As a result, the inventors have found that the amount of mold deposit generated during molding is small, and have completed the present invention.

  That is, the present invention relates to (A) 100 parts by weight of polyarylene sulfide resin, (B) the long diameter (longest linear distance of the cross section) and the short diameter (longest length and the longest length in the direction perpendicular to the long direction) The resin composition and metal or inorganic compounded with 5 to 200 parts by weight of a fibrous reinforcing agent having a flat cross-sectional shape with a linear distance ratio of 1.3 to 10 and (C) 1 to 25 parts by weight of a thermoplastic elastomer It is an insert molded product formed by insert molding a solid.

  Hereinafter, the constituent components of the resin material of the present invention will be described in detail. The PAS resin as the component (A) used in the present invention is mainly composed of — (Ar—S) — (wherein Ar is an arylene group) as a repeating unit. Examples of the arylene group include p-phenylene group, m-phenylene group, o-phenylene group, substituted phenylene group, p, p′-diphenylene sulfone group, p, p′-biphenylene group, p, p′-diphenylene. An ether group, p, p′-diphenylenecarbonyl group, naphthalene group and the like can be used. In this case, among the arylene sulfide groups composed of the above-mentioned arylene groups, in addition to a polymer using the same repeating unit, that is, a copolymer containing a different repeating unit from the viewpoint of processability of the composition in addition to a homopolymer. May be preferred.

  As the homopolymer, those having a repeating unit of a p-phenylene sulfide group using a p-phenylene group as an arylene group are particularly preferably used. As the copolymer, among the arylene sulfide groups comprising the above-mentioned arylene groups, two or more different combinations can be used, and among them, a combination containing a p-phenylene sulfide group and an m-phenylene sulfide group is particularly preferably used. It is done. Among these, those containing 70 mol% or more, preferably 80 mol% or more of p-phenylene sulfide groups are suitable from the viewpoint of physical properties such as heat resistance, moldability and mechanical properties.

  Further, among these PAS resins, a substantially linear high molecular weight polymer obtained by condensation polymerization from a monomer mainly composed of a bifunctional halogen aromatic compound can be particularly preferably used. In addition to the PAS resin, a polymer in which a branched structure or a crosslinked structure is partially formed by using a small amount of a monomer such as three or more polyhalogen aromatic compounds at the time of polycondensation can be used. It is also possible to use a polymer in which a linear polymer having a molecular weight is heated at a high temperature in the presence of oxygen or an oxidizing agent to increase the melt viscosity by oxidative crosslinking or thermal crosslinking, thereby improving molding processability.

The component (A) PAS resin is mainly composed of the linear PAS resin (310 ° C., viscosity at a shear rate of 1200 sec ⁻¹ of 10 to 300 Pa · s), and a part thereof (1 to 30% by weight). A mixed system with a branched or crosslinked PAS resin having a relatively high viscosity (300 to 3000 Pa · s, preferably 500 to 2000 Pa · s), preferably 2 to 25% by weight, is also suitable.

  Further, the PAS resin used in the present invention is preferably one obtained by purifying by-product impurities and the like by performing acid washing, hot water washing, organic solvent washing (or a combination thereof) after polymerization.

  Next, the fibrous reinforcing agent (B) used in the present invention generally has a flat cross-sectional shape, unlike the conventional fibrous reinforcing agent having a substantially circular cross-sectional shape. It is a feature. In general, a composition containing a fibrous reinforcing agent typified by glass fiber is oriented in the flow direction at the time of molding. Directionality). For this reason, in a molded product in which a metal or the like is inserted, there is a problem that a large distortion is easily generated in the molded product after being solidified and is easily broken. However, even in a composition containing a fibrous substance, when the cross-sectional shape of the reinforcing agent is flat as in the present invention, since the anisotropy of the molding shrinkage rate and the linear expansion coefficient is small, extremely high and low temperature impact characteristics are obtained. It has been found that an excellent molded product can be obtained. In addition, as a method for suppressing the anisotropy of the molding shrinkage rate and the linear expansion coefficient, it is known to use a plate-like filler in combination. In addition, sufficient high and low temperature impact characteristics cannot be obtained.

  The fibrous reinforcing agent (B) having a flat cross section used in the present invention is a long diameter (longest linear distance in the cross section) and a short diameter (longest straight line in the direction perpendicular to the long diameter) in the cross section perpendicular to the length direction. The ratio of (distance) is 1.3 to 10, preferably 1.5 to 5. Specific examples of the shape include an oval shape, an oval shape, a semicircle shape, an eyebrows shape, a rectangle shape, or a similar shape thereof, and those belonging to an eyebrows shape or an oval shape are particularly preferable. The fibrous reinforcing agent (B) having a flat cross section has a large specific surface area, improved adhesion between the fiber and the PAS resin, improved bending strength, rigidity, etc., and exhibits excellent high and low temperature impact characteristics. Also from this point, a fibrous reinforcing agent having an eyebrow-shaped cross-sectional shape having a depression at the center is more preferable. When the ratio of the major axis to the minor axis is less than 1.3, there is no effect on the high and low temperature impact characteristics, and when the ratio exceeds 10, the production itself is difficult.

Next, as the cross-sectional area of the fibrous reinforcing agent (B) having a flat cross-sectional shape used in the present invention becomes large, a sufficient reinforcing effect cannot be obtained, and if it becomes too small, it is difficult to produce itself. In addition, there are problems in handling. Therefore, the cross-sectional area of the fibrous reinforcing agent in the present invention is 2 × 10 ⁻⁵ to 8 × 10 ⁻³ mm ² , preferably 8 × 10 ⁻⁵ to 8 × 10 ⁻⁴ mm ² .

  Next, the length of the fibrous reinforcing agent (B) having a flat cross-sectional shape used in the present invention is arbitrary, but considering the mechanical properties, molding processability, etc. of the molded product, the average fiber in the molded product The length is preferably 50 to 1000 μm. In addition, hollow fibers can be used as the fibrous reinforcing agent (B) for the purpose of reducing the specific gravity of the resin composition.

  Examples of such fibrous reinforcing agents (B) include glass fibers, carbon fibers, zinc oxide fibers, titanium oxide fibers, wollastonite, asbestos fibers and other mineral fibers, boron fibers, zirconia fibers, silica fibers, silica-alumina. Examples thereof include fibers, zirconia fibers, boron nitride fibers, stainless steel fibers, copper fibers, polyamide fibers, high molecular weight polyethylene fibers, aramid fibers, polyester fibers, and fluorine fibers. Preferably, glass fibers are used. In addition, two or more kinds of fibrous reinforcing agents (B) can be mixed and used for the purpose of improving mechanical properties, improving slidability, and imparting conductivity.

  In using these fibrous reinforcing agents (B), it is desirable to use a sizing agent or a surface treatment agent if necessary. Examples of this are functional compounds such as epoxy compounds, isocyanate compounds, silane compounds, and titanate compounds. These compounds may be used after being subjected to surface treatment or convergence treatment in advance, or may be added at the same time as material preparation.

  The fibrous reinforcing agent (B) having such a flat cross section is, for example, in the case of glass fiber, an appropriate hole shape such as an oval, an ellipse, a rectangle, and a slit as a bushing used for discharging molten glass. It is prepared by spinning using a nozzle having Also prepared by spinning molten glass from a plurality of adjacent nozzles having various cross-sectional shapes (including circular cross-sections), and joining the spun molten glass into a single filament it can. Carbon fibers and the like can also be prepared using the same method.

  The fibrous reinforcing agent (B) used in the present invention is blended in an amount of 5 to 200 parts by weight, preferably 10 to 100 parts by weight, per 100 parts by weight of the (A) polyarylene sulfide resin. If the amount is less than 5 parts by weight, the mechanical properties inherent to the filler-reinforced PAS resin composition cannot be obtained. If the amount exceeds 200 parts by weight, workability problems such as a decrease in fluidity occur.

  In the present invention, (C) a thermoplastic elastomer is used in combination for further improvement of high and low temperature impact properties.

  (C) Thermoplastic elastomers include polyolefin elastomers, polyester elastomers, fluorine elastomers, silicone elastomers, butadiene elastomers, polyamide elastomers, polystyrene elastomers, urethane elastomers, and various types of particles with a cross-linked structure at the center. An elastomer etc. are mentioned and 1 type (s) or 2 or more types can be used.

  (C) The thermoplastic elastomer is preferably a polyolefin-based elastomer, and particularly preferably an olefin-based copolymer mainly composed of an α-olefin and a glycidyl ester of an α, β-unsaturated acid. In addition, polyolefin elastomers obtained by copolymerizing various graft copolymers with a main component composed of an α-olefin and a glycidyl ester of α, β-unsaturated acid are also preferably used.

  (C) The amount of the thermoplastic elastomer is 1 to 25 parts by weight, preferably 1 to 15 parts by weight, more preferably 1 to 8 parts by weight, based on 100 parts by weight of the (A) polyarylene sulfide resin. . If it is less than 1 part by weight, the effect of improving the high and low temperature impact characteristics is not sufficient, and if it exceeds 25 parts by weight, there is a problem that the mold deposit that adheres to the mold during molding increases.

  Next, in the present invention, it is preferable to add silicone oil (D) for further improvement of high and low temperature impact characteristics. Silicone oil includes unmodified silicone oil or modified silicone oil having a functional group introduced therein. Unmodified silicone oils are typically polydimethylsiloxane and polymethylphenylsiloxane, the latter including, for example, polydimethyldiphenylsiloxane copolymer, polydimethylphenylmethylsiloxane copolymer, polymethylphenyldiphenylsiloxane copolymer. On the other hand, the modified silicone oil is obtained by modifying a part of the above-mentioned unmodified silicone oil with a functional group. Preferred functional groups include a hydroxyl group, an amino group, a carboxyl group, a carbinol group, an epoxy group, a methacryloxy group. Groups, mercapto groups and the like, and the functional group may be introduced into the side chain, one end, both ends, or the side chain and both ends. Specific examples of these modified silicone oils include terminal silanol polydimethylsiloxane, terminal silanol polydimethyldiphenylsiloxane, terminal hydroxypropyl polydimethylsiloxane, polydimethylhydroxyalkylene oxide methylsiloxane, terminal aminopropyl polydimethylsiloxane, and aminoalkyl-containing T structure. Polydimethylsiloxane, terminal carboxypropyl polydimethylsiloxane, carboxypropyl-containing T-structure polydimethylsiloxane, terminal glycidoxypropyl polydimethylsiloxane, glycidoxypropyl-containing T-structure polydimethylsiloxane, polyglycidoxypropylmethylsiloxane, terminal carb Nord polydimethylsiloxane, terminal acetoxypolydimethylsiloxane, terminal dimethylaminopoly Methyl siloxane, terminated methacryloxypropyl polydimethylsiloxane, methacryloxypropyl-containing T structure polydimethylsiloxane, mercaptopropyl containing T structure polydimethylsiloxane, poly mercaptopropyl methyl siloxane, and the like.

  The viscosity of the silicone oil (D) is not particularly limited in the range of 10 to 500000 cSt (centistokes) at 25 ° C., but is preferably from 100 to 100000 cSt in terms of handling properties and dispersibility during mixing. Use of a silicone oil supported on an inorganic fine powder is more preferable in terms of quality such as handling properties and dispersibility during mixing.

  The blending amount of the silicone oil (D) is 0.1 to 15 parts by weight, preferably 0.5 to 10 parts by weight with respect to 100 parts by weight of the (A) polyarylene sulfide resin. If it is less than 0.1 part by weight, the effect of improving the high and low temperature impact characteristics cannot be obtained, and if it exceeds 15 parts by weight, the oil component oozes out on the surface of the molded product, which is not preferable.

  The resin composition of the insert molded product of the present invention has a fibrous reinforcement having a flat cross-sectional shape in order to improve performance such as mechanical strength, heat resistance, dimensional stability (deformation resistance, warpage), and electrical properties. A fibrous and / or non-fibrous inorganic filler (E) other than the agent (B) can also be blended. For this purpose, fibrous, granular or plate-like fillers are used depending on the purpose.

  Examples of fibrous fillers include glass fiber, asbestos fiber, carbon fiber, silica fiber, silica / alumina fiber, zirconia fiber, boron nitride fiber, boron fiber, potassium titanate fiber, stainless steel, aluminum, titanium, copper, brass, etc. Examples thereof include inorganic fibrous materials such as metal fibrous materials. Particularly typical fibrous fillers are glass fibers or carbon fibers. High melting point organic fiber materials such as polyamide, fluororesin and acrylic resin can also be used.

  On the other hand, as particulate filler, carbon black, silica, quartz powder, glass beads, glass powder, calcium oxalate, aluminum oxalate, kaolin, talc, clay, diatomaceous earth, wollastonite such as wollastonite, oxidation Metal oxides such as iron, titanium oxide, zinc oxide and alumina, metal carbonates such as calcium carbonate and magnesium carbonate, metal sulfates such as calcium sulfate and barium sulfate, other silicon carbide, silicon nitride, boron nitride, Various metal powders are mentioned.

  Examples of the plate-like filler include mica, glass flakes, and various metal foils. These inorganic fillers can be used alone or in combination of two or more.

  In using these fillers, it is desirable to use a sizing agent or a surface treatment agent if necessary. Examples of this are functional compounds such as epoxy compounds, isocyanate compounds, silane compounds, and titanate compounds. These compounds may be used after being subjected to surface treatment or convergence treatment in advance, or may be added at the same time as material preparation.

  The amount of the inorganic filler (E) used is not particularly limited, but is generally 20 to 250 parts by weight per 100 parts by weight of the component (A) PAS resin. If it is less than 20 parts by weight, the mechanical strength is inferior. If it is too large, the molding operation becomes difficult, and the mechanical strength of the molded product also becomes problematic.

  In addition, the resin composition of the insert-molded product of the present invention contains an amorphous resin (F) having a relatively high heat resistance and 100 wt. 5 to 50 parts by weight can be blended per part. Examples of such an amorphous resin (F) include polyphenylene ether, polyarylate, polysulfone, polyethersulfone, polyetherimide, polycarbonate, cyclic olefin resin, and copolymers or functional groups of these amorphous resins. Examples include modified polymers.

  Moreover, the silane compound can be mix | blended with the objective of improving the burr | flash etc. in the resin composition of the insert molded product of this invention in the range which does not impair the effect of this invention. Examples of silane compounds include various types such as vinyl silane, methacryloxy silane, epoxy silane, amino silane, mercapto silane, etc. Examples include γ-aminopropyltriethoxysilane, γ-mercaptotrimethoxysilane, and the like, but are not limited thereto.

  The resin composition of the insert-molded product used in the present invention can be supplemented with a small amount of other thermoplastic resin components in addition to the above components depending on the purpose. Any other thermoplastic resin may be used as long as it is stable at high temperatures.

  Furthermore, in order to give the resin composition of the insert molded product used in the present invention desired properties according to its purpose, generally known substances that are added to thermoplastic resins and thermosetting resins, that is, flame retardants, Colorants such as dyes and pigments, lubricants, crystallization accelerators, crystal nucleating agents, various antioxidants, heat stabilizers, weathering stabilizers and the like can be blended according to the required performance.

  The resin composition of the insert molded product used in the present invention can be prepared by equipment and methods generally used for preparing a synthetic resin composition. In general, after mixing necessary components, it can be melt-kneaded using a single-screw or twin-screw extruder and extruded to form pellets for molding. It is also a preferred method to melt-extrude the resin component and add and blend the fibrous inorganic filler in the middle.

  The insert molded product is a composite molded product in which a metal or the like is mounted in advance on a molding die and the above compounded resin composition is filled on the outside thereof. As a molding method for filling the resin into the mold, there are an injection method, an extrusion compression molding method, and the like, and an injection molding method is general. In addition, since the material to be inserted into the resin is used for the purpose of taking advantage of its characteristics and compensating for the defects of the resin, a material that does not change its shape or melt when it comes into contact with the resin during molding is used. For this reason, mainly used are metals such as aluminum, magnesium, copper, iron, brass and their alloys, and inorganic solids such as glass and ceramics, which are previously formed into rods, pins, screws and the like.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these.

The measurement methods for evaluating physical properties shown in the following examples are as follows.
(1) High and low temperature impact characteristics Resin pellets with resin temperature of 320 ° C, mold temperature of 150 ° C, injection time of 40 seconds, cooling time of 60 seconds, and metal pin (14mm x 14mm x 24mm) with the minimum thickness Insert injection molding was performed by insert injection molding so that the thickness was 1 mm.

The obtained insert molded product was heated at 180 ° C. for 2 hours using a thermal shock tester, cooled to −40 ° C., cooled for 2 hours, and then heated to 180 ° C. for one cycle. A low temperature impact test was performed, and the number of cycles until a crack occurred in the molded product was measured to evaluate the high and low temperature impact properties.
(2) Evaluation of mold deposit amount during molding After molding a specific molded product under the following conditions with an injection molding machine and molding a predetermined number of shots, the mold deposit adhesion on the mold surface and the peripheral part of the vent is visually observed as shown below. Rated by stage.
○: Adhesion amount is small Δ: Adhesion is confirmed, but it is an acceptable level ×: Adhesion amount is large, unacceptable level for molding mass production (molding conditions)
Injection molding machine: Toshiba IS30FRA-1A
Cylinder temperature: 340 ℃
Injection time: 2 seconds Cooling time: 5 seconds Mold temperature: 60 ° C
Number of molding shots: 500 shots Examples 1-6, Comparative Examples 1-9
As shown in Tables 1-2, each raw material component (components (A), (C), (D), (E), (F)) was mixed for 5 minutes with a Henschel mixer, and this was mixed at a cylinder temperature of 320 ° C. Charged into a twin screw extruder, component (B) is added separately from the side feed part of the extruder, melt kneaded at a resin temperature of 350 ° C. in the twin screw extruder to make pellets of the resin composition, and evaluation of the above physical properties Went. The results are shown in Tables 1-2.

In addition, the specific substance of each component used by the Example and the comparative example is as follows.
(A) Polyphenylene sulfide (PPS) resin, Kureha Chemical Industry Co., Ltd., Fortron KPS (viscosity at 310 ° C. and shear rate of 1200 sec ⁻¹ 30 Pa · s)
(B) Glass fiber / glass fiber with flat cross-sectional shape
(B-variant 1)
Cross-sectional shape: eyebrows, major axis 24 μm, minor axis 12 μm, major axis / minor axis ratio 2 (manufactured by Nittobo Co., Ltd., CSH-3PA)
(B-variant 2)
Cross-sectional shape: oval, major axis 24 μm, minor axis 6 μm, major axis / minor axis ratio 4 (manufactured by Nittobo Co., Ltd., CS-3PF)
・ Glass fiber with a circular cross-sectional shape
(B-circle 1)
Major axis 17 μm, major axis / minor axis ratio 1 (manufactured by Nittobo Co., Ltd., CS-3QL)
(B-circle 2)
Major axis 13 μm, major axis / minor axis ratio 1 (manufactured by NEC Glass, ECS03-717)
(C) Thermoplastic elastomer Copolymer obtained by grafting methyl methacrylate / butyl acrylate copolymer to ethylene / glycidyl methacrylate copolymer (manufactured by NOF Corporation, Modiper A4300)
(D) Silicone oil Polydimethylsiloxane oil Viscosity 5000cSt (Toray Dow Corning Silicone, SH200 oil)
(E) Inorganic filler Calcium carbonate (Toyo Fine Chemical Co., Ltd., Whiten P-30)
(F) Amorphous resin Cyclic olefin resin (Ticona, Topas 6017)

Claims (7)

(A) Ratio of the major axis (longest straight line distance in the cross section) to the minor axis (longest straight line and the longest linear distance in the direction perpendicular to the long axis) to (B) the cross section perpendicular to the length direction with respect to 100 parts by weight of the polyarylene sulfide resin Insert molding a resin composition containing 5 to 200 parts by weight of a fibrous reinforcing agent having a flat cross-sectional shape between 1.3 and 10 and (C) 1 to 25 parts by weight of a thermoplastic elastomer and a metal or inorganic solid Insert molded product. The insert-molded article according to claim 1, wherein the fibrous reinforcing agent (B) having a flat cross-sectional shape is a glass fiber. The insert molded article according to claim 1 or 2, wherein the cross-sectional shape of the fibrous reinforcing agent (B) having a flat cross-sectional shape is an oval, an ellipse, a semicircle, an eyebrow, a rectangle, or a similar shape thereof. The insert-molded article according to any one of claims 1 to 3, wherein the thermoplastic elastomer (C) is an olefin copolymer mainly composed of an α-olefin and a glycidyl ester of an α, β-unsaturated acid. Furthermore, 0.1-15 weight part of silicone oil (D) is mix | blended with 100 weight part of polyarylene sulfide resin (A), The insert molded product in any one of Claims 1-4. The insert molded product according to any one of claims 1 to 5, further comprising a fibrous and / or non-fibrous inorganic filler (E) other than the fibrous reinforcing agent (B) having a flat cross-sectional shape. . The insert molded product according to any one of claims 1 to 6, further comprising an amorphous resin (F).