JPH11228829A - Polyarylene sulfide resin composition for blow molding use and its blow-molded product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject blow-moldable composition with slight mold adherence and high heat resistance. SOLUTION: This resin composition is obtained by compounding (A) 100 pts.wt. of a polyarylene sulfide resin composed of (a) 5-100 wt.% of a polyarylene sulfide resin having branched structure and with a melt viscosity of 250-2,000 Pa.s determined at 310 deg.C and shear rate of 1,200 s<-1> and 95-0 wt.% of a substantially linear polyarylene sulfide resin with a melt viscosity of 30-300 Pa.s determined under the same conditions as the above with (B) 0.5-30 pts.wt. of an olefin-based copolymer comprisng an α-olefin and an α,β-unsaturated glycidyl ester as the main components, (C) 0.05-5 pts.wt. of a phenolic antioxidant, and (D) 0.05-5 pts.wt. of a thioether-based antioxidant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a polyarylene sulfide resin composition for blow molding and a hollow molded article thereof.

[0002]

2. Description of the Related Art Polyarylene sulfide (hereinafter abbreviated as PAS) resin represented by polyphenylene sulfide (hereinafter abbreviated as PPS) resin has high heat resistance, mechanical properties, and chemical resistance. ,
Because of its dimensional stability and flame retardancy, it is widely used in electrical and electronic equipment parts materials, automotive equipment parts materials, chemical equipment parts materials, and the like. However, when the blow molding method commonly used for the hollow molded article of a thermoplastic resin is applied to the molding of the hollow molded article of the PAS resin, the melt tension required most for the blow molding is weak, and the molten intermediate parison is used. However, blow molding is extremely difficult because of drawdown. For this reason, the injection molding method has to be used exclusively, and despite its excellent mechanical strength, heat resistance, and chemical resistance, many applications are expected as hollow molded products, but its practical use is limited. The fact is that it is. It is generally known that a resin having a high molecular weight and a high melt viscosity may be used to increase the melt tension.
However, with a PAS resin, a high-viscosity high-viscosity PAS resin that can be obtained is not sufficient, and there is a limit in increasing the molecular weight. The addition of various inorganic fillers can also increase the viscosity, but is not a particularly effective method. To solve this problem, a method of adding a specific olefin copolymer as shown in JP-A-5-32896 is effective, but the processing temperature of the PAS resin is 3
Since the temperature is higher than 00 ° C., the components of the olefin-based copolymer are thermally degraded and decomposed during the molding to generate gas, so that a large amount of deposits on the mold (mold deposit) cannot be continuously molded. The fact is that it is not practical. On the other hand, methods for improving these heat resistances are disclosed in JP-A-3-68.
Although there is a method of adding various stabilizers as disclosed in Japanese Patent Application Publication No. 656, no polyarylene sulfide resin composition for blow molding having sufficient heat resistance has been obtained by this method. An object of the present invention is to provide a polyarylene sulfide resin composition which is less likely to adhere to a mold, has excellent heat resistance, and can be blow-molded, and a hollow molded article thereof in view of such a problem.

[0003]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, a specific olefin-based copolymer and a specific two kinds of antioxidants have been combined with a specific PAS resin. By doing so, it has been found that the melt tension is remarkably improved, the heat resistance is remarkably improved, the blow molding is made possible and the above object can be achieved, and the present invention has been completed. That is, the present invention relates to (A) (a) 310 ° C., shear rate 120
5 to 100% by weight of a polyarylene sulfide resin having a branched structure having a melt viscosity of 250 to 2000 Pa · s measured at ⁰ sec ⁻¹ and (b) a melt viscosity of 30 to 300 Pa · s measured under the same conditions.
A substantially linear polyarylene sulfide resin 95
Polyarylene sulfide resin consisting of up to 0% by weight
100 parts by weight, (B) 0.5 to 30 parts by weight of an olefin copolymer containing α-olefin and α, β-unsaturated glycidyl ester as main components, (C) phenolic antioxidant 0.05
The present invention relates to a blow-molded polyarylene sulfide resin composition containing 0.05 to 5 parts by weight of a thioether-based antioxidant (D) and a hollow molded article obtained by blow-molding the composition.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION The constituents of the present invention will be described in detail below. PAS as the component (A) used in the present invention
The resin is mainly composed of-(Ar-S)-(where Ar is an arylene group) as a repeating unit. Examples of the arylene group include a p-phenylene group, an m-phenylene group, an o-phenylene group, a substituted phenylene group, a p, p′-biphenylene group, a p, p′-diphenylene ether group, and a p, p′-diene. A phenylenecarbonyl group, a naphthalene group and the like can be used. In this case, in the arylene sulfide group composed of the above-mentioned arylene group, in addition to a polymer using the same repeating unit, that is, a homopolymer, a copolymer containing a heterogeneous repeating unit from the viewpoint of processability of the composition may be used. It may be preferable. As the homopolymer, one having a p-phenylene sulfide group as a repeating unit using a p-phenylene group as an arylene group is particularly preferably used. Further, as the copolymer, among the arylene sulfide groups comprising the above-mentioned arylene groups, two or more different combinations can be used. Among them, a combination containing a p-phenylene sulfide group and an m-phenylene sulfide group is particularly preferably used. Can be Among them, those containing a p-phenylene sulfide group in an amount of 70 mol% or more, preferably 80 mol% or more are suitable from the viewpoint of physical properties such as heat resistance, moldability and mechanical properties.

Further, since the arylene sulfide resin of the present invention is used for blow molding, (a) a branched polymer having a melt viscosity of 250 to 2000 Pa · s measured at 310 ° C. and a shear rate of 1200 sec ^−1. Arylene sulfide resin 5
100% by weight and (b) a melt viscosity of 30 to 30 measured under the same conditions.
95 to 0% by weight of a substantially linear polyarylene sulfide resin of 0 Pa · s. (a) A PAS resin having a branched structure of a component refers to —Ar—S— (where Ar is an arylene group) as a main repeating unit, and a melt viscosity (conditions) in which a branched or crosslinked structure is introduced into the main repeating unit. 310
℃, shear rate 1200 sec ^-1 or less) 250 ~ 2000Pa ・ s,
Preferably, it is a PAS resin of 300 to 1500 Pa · s. If the viscosity is less than 250 Pa · s, the melt tension during blow molding is weak, resulting in poor moldability. If the viscosity exceeds 2000 Pa · s, the fluidity is poor, which is also unfavorable in molding. Further, the branched or crosslinked structure is about 0.01 to 10 mol per 100 mol of the main repeating unit,
Preferably it is 0.02-5 mol. If the degree of branching or cross-linking is too small, the melt tension will be poor and drawdown will occur. Such PAS resin (a) is prepared according to the method described in JP-A-61-7332 or JP-A-61-66720.
It can be produced by reacting an alkali metal sulfide with a dihalo aromatic compound and a small amount of a branching or crosslinking agent such as a small amount of a polyhalo aromatic compound having three or more functional groups.
For example, a dihalo-aromatic compound such as a polyhalo-aromatic compound having three or more halogen substituents may be used.
About 0.01 to about 10 moles are mixed with respect to 00 moles, and if necessary, water or an alkali metal carboxylate is added thereto, and the mixture is reacted and polymerized and prepared under the condition of a desired viscosity (molecular weight). The introduction ratio of the branch unit of the PAS resin (a) is adjusted by the amount of the above-mentioned branching agent, cross-linking agent and the like. In addition, branch,
Even a crosslinked PAS resin has a very low viscosity linear PA
A resin prepared by curing the S resin and increasing the viscosity by oxidative crosslinking or thermal crosslinking is not preferred. PAS resin (b)
Is a polymer having substantially the molecular structure prepared by the method described in JP-A-61-7332 or JP-A-61-66720 without using a branching agent or a crosslinking agent in the branched PAS resin (a). Is a linear PAS resin having no branched or crosslinked structure. The melt viscosity of the linear PAS resin (b) is in the range of 30 to 300 Pa · s, preferably 50 to 250 Pa · s.
Pa · s. The linear PAS resin (b) is superior to the branched PAS resin (a) in mechanical properties, particularly impact strength, and is effective in imparting such properties to molded articles. However, there is a case where a sufficient melt tension cannot be obtained only with the linear PAS resin (b), and therefore, it is preferable to use the linear PAS resin (b) in combination with the branched PAS resin (a). However, if the viscosity is less than 30 Pa · s, there is no effect of the combined use, and if the viscosity exceeds 300 Pa · s, there is a problem in manufacturing itself, which is not preferable. The added amount is from 0 to 95% by weight of the linear PAS resin (b), preferably from 5 to 100% by weight of the branched PAS resin (a).
10 to 90% by weight, and 90 to 10% by weight of the component (b). This mixing ratio is appropriately selected depending on the melt viscosity of the PAS resins (a) and (b), the physical properties of the intended hollow molded article, the intended use, and the like. In addition, the PAS resin used in the present invention is preferably a resin which is subjected to acid washing, hot water washing, and organic solvent washing (or a combination thereof) after polymerization to remove and remove by-product impurities and the like.

Next, the olefin copolymer used in the present invention
(B) is an olefin-based copolymer containing α-olefin and α, β-unsaturated glycidyl ester as main components, and the olefin-based copolymer is ethylene, propylene,
A copolymer containing in its molecular structure a copolymer of an α-olefin such as butene-1 and a glycidyl ester of an α, β-unsaturated acid such as glycidyl acrylate, glycidyl methacrylate, glycidyl ethacrylate, and glycidyl itaconate. In particular, a copolymer of ethylene and glycidyl methacrylate is preferable, and a multi-component copolymer using another vinyl monomer in combination may be used. Among such olefin copolymers, graft copolymers in which the above-mentioned copolymer of α-olefin and α, β-unsaturated glycidyl ester and vinyl polymer or copolymer are chemically bonded in a branched or cross-linked structure. Polymers are more preferred concomitant substances. Here, the vinyl-based (co) polymer segment is a polymer or copolymer composed of polystyrene, polyacrylonitrile, polyacrylate alkylester, polymethacrylate alkylester, and the like. Examples of such a graft copolymer include, for example, JP-A-63-31231.
A preferable example is a multiphase structure prepared by the preparation method described in Japanese Patent Publication No. 3 (JP-A) No. 3 (1994) -301. That is,
For example, in the presence of a glycidyl group-containing olefin copolymer, at least one kind of the vinyl monomer and a specific radical (co) polymerizable organic peroxide are copolymerized to form a peroxide group-containing copolymer. The mixture is heated and kneaded, and both polymers are crosslinked by a reaction of a peroxide group in the vinyl copolymer to prepare a graft copolymer. Particularly, an olefin-based graft copolymer preferably used in the blow molding method of the present invention is disclosed in JP-A-1-1986.
No. 64 also details this. The amount of the olefin copolymer (B) in the present invention is 0.5 to 30 parts by weight based on 100 parts by weight of the (A) PAS resin. If the amount is too small, the blow moldability tends to be slightly unstable, and if it exceeds 30 parts by weight, the melt viscosity is high, molding becomes difficult, and there are also problems with the physical properties such as chemical resistance of the hollow molded product. Occurs, which is not preferable depending on the use.

In the present invention, it is essential to use a phenolic antioxidant (C) and a thioether antioxidant (D) in combination in order to obtain the desired heat resistance and moldability. The process temperature of polyarylene sulfide resin is approximately
Since the temperature is 300 ° C. or higher, the olefin-based copolymer (B) blended for improving toughness undergoes significant thermal deterioration. For this reason, deposits on the mold during molding (mold deposit)
And a complicated process of cleaning the mold is required.
In order to suppress this thermal degradation, a phenolic antioxidant
Even if (C), thioether-based antioxidant (D), or other phosphorus-based stabilizers, amine-based stabilizers, etc. are added alone, sufficient heat resistance and moldability improvement effects cannot be obtained, and This required a process of cleaning the mold to remove the deposit. In contrast, by using a phenolic antioxidant (C) and a thioether antioxidant (D) in combination, the thermal deterioration of the olefinic copolymer is sufficiently suppressed, and excellent heat resistance,
The present inventors have found that a polyarylene sulfide resin composition for blow molding having moldability can be obtained, and generation of mold deposit can be considerably suppressed, and the present invention has been completed.

The phenolic antioxidant used in the present invention
(C) is a compound having one or more alkylphenol groups in its molecular structure. Specific examples of the phenolic antioxidant include 2,6-di-tert-butyl-p-cresol, stearyl- (3,5-di-methyl-4-hydroxybenzyl) thioglycolate, and stearyl-β- ( 4-
Hydroxy-3,5-di-tert-butylphenyl) propionate, distearyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, distearyl (4-hydroxy-3-methyl-5-tert-butyl) ) Benzyl malonate, 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 4,4'-methylenebis (2,6-di-tert-butylphenol), 2,2'-methylenebis [6- (1
-Methylcyclohexyl) -p-cresol], bis [3,3-bis (4-hydroxy-3-tert-butylbutylphenyl) butyric acid] glycol ester,
4'-butylidenebis (6-tert-butyl-m-cresol), 1,1,3-tris (2-methyl-4-hydroxy-
5-tert-butylphenyl) butane, 1,3,5-tris (3,
5-di-tert-butyl-4-hydroxybenzyl) -2,4,
6-trimethylbenzene, tetrakis [methylene-3-
(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] methane, 1,3,5-tris (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3, 5-tris [(3,5-di-tert-butyl-4-hydroxyphenyl) propionyloxyethyl] isocyanurate, 2-octylthio-4,6-di (4-hydroxy-3,5-di-tert-butyl) ) Phenoxy-1,3,5-triazine, 4,4′-thiobis (6-tert-butyl-m-cresol), triethyleneglycol-bis [3- (3-
Tert-butyl-5-methyl-4-hydroxyphenyl) propionate], 1,6-hexyldiol-bis [3-
(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 2,4-bis-octylthio-6- (4
-Hydroxy-3,5-di-tert-butylanilino) -1,3,
5-triazine, 2,2-thio-diethylenebis [3-
(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], N, N-hexamethylenebis (3,5-di-tert-butyl-4-hydroxy-hydrocinnamamide), 3,5 Di-tert-butyl-4-hydroxy-benzylphosphonate-diethyl ester, 1,3,5-trimethyl-2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene, Tris- (3,5-di-third
Butyl-4-hydroxybenzyl) isocyanurate,
Isooctyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate; and 2,4-bis [(octylthio) methyl] -o-cresol. These can be used alone or in combination of two or more. The amount of the phenolic antioxidant (C) is based on 100 parts by weight of the polyarylene sulfide resin (A).
A suitable amount is 0.05 to 5 parts by weight, preferably 0.1 to 3 parts by weight. If the amount is less than 0.05 part by weight, the effect of improving heat resistance is insufficient. If the amount is more than 5 parts by weight, the mold deposit of the mold during molding is undesirably increased.

Next, the thioether-based antioxidant (D) used in the present invention is a compound having at least one thioether bond in the molecular structure. Examples of thioether-based antioxidants include tetrakis [methylene-3-
(Dodecylthio) propionate] methane, dilauryl-3,3'-thiodipropionate, distearyl-3,3'-
And thiodipropionate. These may be used alone or in combination of two or more. The appropriate amount of the thioether-based antioxidant (D) is 0.05 to 5 parts by weight, preferably 0.1 to 3 parts by weight, based on 100 parts by weight of the polyarylene sulfide resin (A). If less than 0.05 parts by weight,
If the effect of improving heat resistance is insufficient, and if the amount is more than 5 parts by weight, the mold deposit of the mold at the time of molding is undesirably increased.

[0010] The polyarylene sulfide resin composition for blow molding of the present invention may further contain a fibrous, powdery or plate-like filler depending on the purpose. Such a filler is effective for imparting mechanical properties, particularly strength and rigidity, to the molded article. Examples of the fibrous filler include glass fiber, asbestos fiber, carbon fiber, silica fiber, silica / alumina fiber, zirconia fiber, boron nitride fiber, silicon nitride fiber, boron fiber, potassium titanate fiber, stainless steel, aluminum, titanium, Inorganic fibrous substances such as fibrous materials of metals such as copper and brass can be used. Particularly typical fibrous fillers are glass fibers. On the other hand, as the particulate filler, carbon black, silica, quartz powder, glass beads, glass powder, calcium silicate, kaolin, talc, clay, diatomaceous earth, silicates such as wollastonite, iron oxide, titanium oxide, Oxides of metals such as zinc oxide and alumina, carbonates of metals such as calcium carbonate and magnesium carbonate, sulfates of metals such as calcium sulfate and barium sulfate, and other metal powders such as silicon carbide, silicon nitride, boron nitride, etc. No. Examples of the plate-like filler include mica, glass flake, and various metal foils. These inorganic fillers can be used alone or in combination of two or more. The combined use of fibrous fillers, especially glass fibers and powdery or plate-like fillers, is a preferred combination in terms of having both mechanical strength, dimensional accuracy, electrical properties, etc. of the molded product, and particularly improving blow moldability. It is also effective. When using these fillers, it is desirable to use a sizing agent or a surface treatment agent. This example is a functional compound such as an epoxy compound, an isocyanate compound, a silane compound and a titanate compound. In the present invention, the amount of the filler is 1 to 150 parts by weight, preferably 1 to 100 parts by weight, based on 100 parts by weight of the PAS resin. If the amount is too small, the rigidity and strength tend to be low. If the amount is more than 150 parts by weight, there is a problem in molding, which is not preferable.

Further, in addition to the above, other small amounts of other thermoplastic resins can be used together with the PAS resin composition of the present invention. The other thermoplastic resin used here may be any thermoplastic resin that is stable at high temperatures. For example, other than the above, polyolefin (co) polymers, aromatic polyesters such as polyethylene terephthalate and polybutylene terephthalate and aromatic dicarboxylic acids and diols or oxycarboxylic acids, polyamide polymers, polycarbonates, AB
S, polyphenylene oxide, polyalkyl acrylate, polyacetal, polysulfone, polyethersulfone, polyetherimide, polyetherketone, fluorine resin, and the like can be given. These thermoplastic resins can be used as a mixture of two or more kinds.

Further, the polyarylene sulfide resin composition of the present invention contains a known substance generally added to a synthetic resin, that is, a stabilizer such as an antioxidant other than (C) and (D) and an ultraviolet absorber, Antistatic agents, flame retardants, coloring agents such as dyes and pigments, lubricants, release agents, crystallization accelerators, nucleating agents, and the like can also be appropriately added according to the required performance.

[0013] The blow molding method of the present invention uses the above-mentioned specific PAS.
If necessary for the resin, the above-mentioned olefin-based copolymer is added and blended and melt-kneaded. If necessary, other desired components are also blended and melt-kneaded, and then subjected to blow molding. The melt-kneading of each component may be pelletized once using a single-screw or twin-screw extruder and then subjected to blow molding, or may be performed immediately after melt-kneading to form a parison for blow molding. . The blow molding of the present invention may be performed by a usual method using a blow molding machine generally used for blow molding of a thermoplastic resin. That is, the above PAS resin composition is plasticized by an extruder or the like, and is extruded or injected by an annular die to form an annular molten or softened intermediate parison, which is sandwiched between a mold and a gas inside. Is blown, inflated, cooled and solidified to form a hollow body. The PAS resin composition of the present invention is preferably molded at a cylinder and die temperature of 280 to 350 ° C, particularly preferably 290 to 320 ° C. The mold temperature is preferably from 40 to 200 ° C., particularly preferably.
80-160 ° C. The gas to be blown into the inside may be air, nitrogen or any other gas, but air is usually used in consideration of economy, and the blowing pressure is preferably 4 to 10 kg / cm ² . Furthermore, it can be molded by a special blow molding machine such as a three-dimensional blow molding machine. Further, the composition of the present invention may be composed of one or more layers, and may be combined with a layer of another material to form a multilayer blow molded article.

[0014]

Next, the present invention will be described in detail with reference to examples and comparative examples, but the present invention is not limited to these examples. Incidentally, each (a), (b), (B),
Specific substances of (C) and (D) are as follows.・ (A) Branched polyphenylene sulfide (PPS) resin (a-1) Melt viscosity 1000 Pa ・ s (a-2) Melt viscosity 500 Pa ・ s (a'-1) Melt viscosity 150 Pa ・ s ・ (b) Linear PPS Melt viscosity 150Pa · s (Fortron KPS, manufactured by Kureha Chemical Industry Co., Ltd.) · (B) Olefin copolymer (B-1) Ethylene / glycidyl methacrylate copolymer (B-2) Ethylene / glycidyl methacrylate and styrene / (C) phenolic antioxidant (C-1) tetrakis [methylene-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate] / graft copolymer grafted with acrylonitrile copolymer Methane (C-2) triethylene glycol-bis [3- (3-third
(Butyl-5-methyl-4-hydroxyphenyl) propionate] (D) thioether-based antioxidant (D-1) tetrakis [methylene-3- (dodecylthio) propionate] methane (D-2) dilauryl-3,3 ′ -Thiodipropionate-Filler Glass fiber; 13 μm φ chopped glass Granular glass; Nippon Electric Glass; Toshiba Barotini, glass beads, particle size
18 μm Examples 1 to 12, Comparative Examples 1 to 8 In addition to (a), (b), (B), (C) and (D) shown in Tables 1 and 2,
Optionally, glass fibers and granular glass were added in the amounts shown in Tables 1 and 2, and the mixture was melt-kneaded at a cylinder temperature of 310 ° C. using a twin-screw extruder to form pellets. Then, the pellets were blown with a blow molding machine (S-45ND manufactured by Placo Co., Ltd.) at a cylinder temperature of 320 ° C. and a die (die diameter 50 mm, die interval 3 m).
m) A cylindrical container having a temperature of 310 ° C., a mold temperature of 150 ° C., a blowing pressure of 0.49 MPa, an average thickness of 2.5 mm, and a content of 500 cc was formed.
At this time, the moldability (draw-down property, breakage at the time of blowing, the amount of mold deposit adhered to the mold), the uniformity of the thickness of the molded product and the appearance (roughness of the surface, unevenness of the surface) were evaluated. The results are shown in Tables 1 and 2.

The evaluation method used for the evaluation is as follows. 1) Drawdown property of parison The parison was extruded from the die to a length of 200 mm using the blow molding machine, and the parison length after 10 seconds was measured. Two
Within 10mm is fine, 210-240mm is small, 240-270m
m was set to “medium” and 270 mm or more was set to “large”. A parison that was broken and dropped by its own weight was designated as “DD”. 2) Amount of mold deposit When the mold deposit adheres to the area of 0 to 10% of the projected area of the cavity of the mold at the time of 50 shot molding by the blow molding machine, "small", 10 to 30 % Was determined as “medium” and more than 30% was determined as “large”. 3) Breakage during blow It was visually determined whether or not the material had broken during blow molding. 4) Molded Product Thickness The molded product was cut, and the thickness of the circumference of the cylinder and its upper, central, and lower portions were measured with a micrometer, and the thickness variation (%) was examined. 5) Appearance The surface smoothness (unevenness) of the molded product was visually judged.

[0016]

[Table 1]

[0017]

[Table 2]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08L 23:02 33:14)

Claims (4)

[Claims] (A) (a) 5 to 100% by weight of a branched polyarylene sulfide resin having a melt viscosity of 250 to 2000 Pa · s measured at 310 ° C. and a shear rate of 1200 sec ^-1 , and (b)
With respect to 100 parts by weight of a polyarylene sulfide resin comprising 95 to 0% by weight of a substantially linear polyarylene sulfide resin having a melt viscosity of 30 to 300 Pa · s measured under the same conditions, (B) α-olefin and α 0.5 to 30 parts by weight of an olefin copolymer containing .beta.-unsaturated glycidyl ester as a main component, (C) 0.05 to 5 parts by weight of a phenolic antioxidant, (D) 0.05 to 5 parts by weight of a thioether antioxidant And a polyarylene sulfide resin composition for blow molding. (2) The olefin copolymer (B) is an olefin copolymer comprising an α-olefin and a glycidyl ester of an α, β-unsaturated acid, and a vinyl polymer or a copolymer is branched or The polyarylene sulfide resin composition for blow molding according to claim 1, which is a graft copolymer chemically bonded in a crosslinked structure. (A) Polyarylene sulfide resin 100
The polyarylene sulfide resin composition for blow molding according to claim 1 or 2, further comprising 1 to 150 parts by weight of at least one of a fibrous filler, a granular filler, and a plate-like filler. Stuff. 4. A hollow molded article obtained by blow molding the polyarylene sulfide resin composition according to claim 1.