JP3067220B2 - Blow hollow molded product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blow molded article having excellent heat resistance, chemical resistance and impact resistance.

[0002]

2. Description of the Related Art PPS resin (hereinafter abbreviated as PPS) is an engineering plastic having excellent heat resistance, chemical resistance, flame retardancy, and electrical properties.
In recent years, demands for applications such as automobile parts and precision machine parts have been increasing. However, the method of forming and processing PPS is almost limited to injection molding because the melt fluidity of PPS is very large, and therefore, most of the molded products are small in shape, such as bottles by blow molding. And its application to large parts such as tanks has not been made much. As an example of blow molding, for example, P.P.
A PS blow-molded container and a method for producing the same are known, which use PPS having a remarkably high degree of polymerization and combine a special injection stretch blow-molding method. The technology has not been established.

[0003]

On the other hand, in automobile parts, a method of manufacturing ducts in an engine room by blow molding has become widespread. At present, mainly polyamide-based materials are used. However, in reality, there is a demand for a blow molding material having high heat resistance due to insufficient heat resistance and also having chemical resistance and impact resistance.

In order to meet such demands, the present inventors have studied blow-molded blow-molded articles obtained by blow-molding a composition comprising PPS and an epoxy group-containing polyolefin copolymer. However, the blow molding obtained here had excellent blow moldability, heat resistance, chemical resistance, and impact resistance.
In particular, there is room for improvement in the floating of glass fibers when a reinforcing material such as glass fibers is added. Then, the present inventors make it a subject to further improve the external appearance of the said PPS type | mold blow-molded hollow article.

[0005]

That is, the present invention comprises 5-80 parts by weight of a thermoplastic polyester resin, 100 parts by weight of a polyphenylene sulfide resin, and a glycidyl ester of an α-olefin and an α, β-unsaturated carboxylic acid. Blow hollow obtained by blow molding a polyphenylene sulfide resin composition comprising 5 to 80 parts by weight of a modified polyolefin, 5 to 80 parts by weight of a thermoplastic elastomer, and 0 to 200 parts by weight of a fibrous and / or granular reinforcing material. It provides molded articles.

In the present invention, even if an inorganic filler such as glass fiber is compounded by further adding a thermoplastic polyester resin and a thermoplastic elastomer to a composition comprising PPS and a specific modified polyolefin, A resin composition having no blown glass fibers, excellent blow moldability, and excellent heat resistance, mechanical properties, hydrolysis resistance, and economy can be obtained.

The PPS used in the present invention has a structural formula

[0008]

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It is a polymer containing 70 mol% or more, more preferably 90 mol% or more, of the repeating unit represented by the formula. If the above repeating unit is less than 70 mol%, heat resistance is unfavorably deteriorated.

In general, PPS is a polymer having a relatively small molecular weight obtained by a production method represented by Japanese Patent Publication No. 45-3368 and an essential polymer obtained by a production method represented by Japanese Patent Publication No. 52-12240. There is a polymer having a relatively high molecular weight in a linear form, and the polymer obtained by the method described in JP-B No. 45-3368 is heated by heating after polymerization in an oxygen atmosphere or peroxide. It is also possible to increase the degree of polymerization by adding a crosslinking agent such as the above and heating to use. In the present invention, it is possible to use PPS obtained by any method, but an essentially linear polymer having a relatively high molecular weight is more preferably used.

The PPS can comprise less than 30 mol% of the repeating unit with a repeating unit having the following structural formula.

[0012]

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[0013] The PPS used in the present invention is preferably produced through the above-mentioned polymerization step and then subjected to an acid treatment, a hot water treatment or a deionization treatment by washing with an organic solvent.

The case of carrying out the acid treatment is as follows. The acid used for the acid treatment of PPS in the present invention is not particularly limited as long as it does not have an action of decomposing PPS, and examples thereof include acetic acid, hydrochloric acid, sulfuric acid, phosphoric acid, silicic acid, carbonic acid, and propyl acid. However, acetic acid and hydrochloric acid can be more preferably used, but those which decompose and degrade PPS such as nitric acid are not preferred.

The acid treatment is carried out by adding P or P to an acid or an aqueous solution of an acid.
There are methods such as immersing PS, and if necessary, stirring or heating can also be performed. For example, when acetic acid is used, a sufficient effect can be obtained by immersing the PPS powder in a pH 4 aqueous solution heated to 80 to 90 ° C. and stirring for 30 minutes. The PPS that has been subjected to the acid treatment needs to be washed several times with water or hot water in order to physically remove the remaining acid or salt.

The water used for washing is distilled water, in the sense that the effect of the preferred chemical modification of PPS by the acid treatment is not impaired.
Preferably, it is deionized water.

The case of performing the hot water treatment is as follows.

In treating the PPS used in the present invention with hot water, it is important that the temperature of the hot water be 100 ° C. or higher, more preferably 120 ° C. or higher, further preferably 150 ° C. or higher, and particularly preferably 170 ° C. or higher. And 1
If the temperature is lower than 00 ° C., the effect of the preferred chemical modification of PPS is small, which is not preferable.

The water used is preferably distilled water or deionized water in order to exhibit the preferable chemical modification effect of PPS by the hot water treatment of the present invention. In the operation of the hot water treatment, usually, a predetermined amount of PPS is put into a predetermined amount of water,
This is performed by heating and stirring in a pressure vessel. PP
The ratio of S to water is preferably as high as possible, but a bath ratio of 200 g or less of PPS to 1 liter of water is usually selected.

Further, since the decomposition of the terminal groups is not preferred in the treatment atmosphere, it is preferable to use an inert atmosphere in order to avoid this. Further, the PPS that has been subjected to the hot water treatment operation is preferably washed several times with warm water in order to physically remove the remaining components.

The case of washing with an organic solvent is as follows.

The organic solvent used for washing PPS in the present invention is not particularly limited as long as it does not have an action of decomposing PPS. For example, N-methylpyrrolidone, dimethylformamide, dimethylacetamide, 1,3-dimethyl Imidazolidinone, hexamethylphosphoramide, nitrogen-containing polar solvents such as piperazinones, dimethyl sulfoxide, dimethyl sulfone, sulfoxide-sulfone solvents such as sulfolane, acetone, methyl ethyl ketone, ketone solvents such as diethyl ketone, acetophenone, dimethyl ether, Ether solvents such as dipropyl ether, dioxane, tetrahydrofuran, chloroform, methylene chloride, trichloroethylene, dichlorinated ethylene, perchlorethylene, monochloroethane, dichloroethane, tet Halogen-based solvents such as chloroethane, perchloreethane, and chlorobenzene; alcohol / phenol-based solvents such as methanol, ethanol, propanol, butanol, pentanol, ethylene glycol, propylene glycol, phenol, cresol, polyethylene glycol, and polypropylene glycol; and benzene; Examples thereof include aromatic hydrocarbon solvents such as toluene and xylene. Among these organic solvents, use of N-methylpyrrolidone, acetone, dimethylformamide, chloroform and the like is particularly preferred. These organic solvents are used alone or in combination of two or more.

As a method of washing with an organic solvent, there is a method of immersing PPS in an organic solvent, and the like, and if necessary, stirring or heating can also be performed.

There is no particular limitation on the washing temperature for washing PPS with an organic solvent, and any temperature from room temperature to about 300 ° C. can be selected. Although the cleaning efficiency tends to increase as the cleaning temperature increases, a sufficient effect is usually obtained at a cleaning temperature of normal temperature to 150 ° C.

It is also possible to wash under pressure at a temperature not lower than the boiling point of the organic solvent in a pressure vessel. There is no particular limitation on the cleaning time. Although it depends on the washing conditions, in the case of batch washing, washing is usually performed for 5 minutes or more.
A sufficient effect can be obtained. It is also possible to wash in a continuous manner.

Although it is sufficient to wash the PPS produced by polymerization with an organic solvent, it is preferable to combine the washing with water or washing with warm water in order to further exert the effects of the present invention. When a high-boiling water-soluble organic solvent such as N-methylpyrrolidone is used, it is preferable to wash the organic solvent and then wash it with water or warm water because the remaining organic solvent can be easily removed. The water used for these washings is preferably distilled water or deionized water.

The melt viscosity of the PPS used in the present invention is as follows:
There is no particular limitation, and any melt viscosity can be used as long as kneading with the polyolefin is possible.
Usually, those having a melt viscosity of 100 to 10,000 poise at 320 ° C. and a shear rate of 10 sec ⁻¹ are used.

The thermoplastic polyester used in the present invention is an aliphatic or alicyclic diol component having 2 to 10 carbon atoms, for example, ethylene glycol, propylene glycol, 1,4-butanediol, neopentyl glycol, 1,5 -Pentanediol, 1,6-hexanediol, 2-ethylhexane-1,3-diol, cyclohexanediol, cyclohexanedimethanol, 2,
2-bis (4-hydroxyphenyl) propane and long-chain glycols having a molecular weight of 400 to 6,000, such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and terephthalic acid, isophthalic acid, orthophthalic acid, and naphthalenedicarboxylic acid;
Bisbenzoic acid, bis (p-carboxyphenyl) methane, 4,4′-diphenyletherdicarboxylic acid, 4,
A homopolymer or a copolymer obtained by a condensation reaction with an aromatic dicarboxylic acid such as 4'-diphenoxyethane dicarboxylic acid and an ester-forming derivative thereof, and each can be used alone or in the form of a mixture.

In addition, a small amount of an aliphatic dicarboxylic acid such as adipic acid, sebacic acid, azelaic acid or dodecane diacid can be introduced into these semi-aromatic polyesters as long as their properties are not impaired. .

Particularly useful polyesters in the present invention are polyethylene terephthalate, polybutylene terephthalate,
Polycyclohexylene dimethylene terephthalate. The degree of polymerization of the polyester used here is 0.5% concentration in an ortho-chlorophenol solvent at 25 ° C.
Is preferably 1.2 or more.

The α-olefin used in the present invention and α,
Specific examples of the modified polyolefin comprising a glycidyl ester of β-unsaturated carboxylic acid include ethylene, propylene, 1-butene, 1-pentene, 1-hexene and the like, with ethylene being preferred. The glycidyl ester of α, β-unsaturated carboxylic acid is represented by the following structural formula

[0032]

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(Wherein R represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms), and specific examples thereof include glycidyl acrylate, glycidyl methacrylate and glycidyl ethacrylate. Glycidyl methacrylate is preferably used. The copolymerization amount of the glycidyl ester of α, β-unsaturated carboxylic acid is 1 to 50.
%, Preferably in the range of 3 to 40% by weight. Further, the modified polyolefin of the present invention may contain other unsaturated monomers copolymerizable within a range not impairing the properties thereof, such as vinyl ethers, vinyl acetate, vinyl esters such as vinyl propionate, acrylic acid such as methyl, ethyl and propyl. Esters of methacrylic acid, acrylonitrile, styrene and the like can also be copolymerized. Examples of the elastomer used as the thermoplastic elastomer component in the present invention include, for example, polyolefin-based elastomer, diene-based elastomer, acrylic-based elastomer, polyamide-based elastomer, polyester-based elastomer, silicone-based elastomer, fluorine-based elastomer, and polysulfide-based elastomer. . Specific examples of the polyolefin-based elastomer include ethylene-propylene copolymer, ethylene-butene copolymer, polybutene, ethylene-propylene-diene copolymer and ethylene-
And vinyl acetate copolymer. Examples of the diene elastomer include styrene-butadiene copolymer, polybutadiene, butadiene-acrylonitrile copolymer, polyisoprene, butene-isoprene copolymer, and styrene-
Butadiene-styrene copolymers and hydrogenated products thereof.

Specific examples of the acrylic elastomer include ethylene-methyl (meth) acrylate copolymer, ethylene-ethyl (meth) acrylate copolymer, ethylene-propyl (meth) acrylate copolymer, and ethylene- ( Meta)
Olefin-acrylate copolymer such as butyl acrylate copolymer, methyl (meth) acrylate-acrylonitrile copolymer, propyl (meth) acrylate-
Acrylonitrile copolymer, (meth) acrylate-acrylonitrile copolymer such as butyl (meth) acrylate-acrylonitrile copolymer, ethylene- (meth) acrylic acid copolymer and Na, Zn, K,
Metal salts such as Ca and Mg, and the above-mentioned butadiene-acrylonitrile copolymer are exemplified.

The polyamide-based elastomer is an elastomer of a block copolymer having a hard segment of a polyamide component and a soft segment of a polyether component and / or a polyester component. Examples of polyamide components include

[0036]

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(Wherein R ^I , R ^II and R ^III represent an alkylene group having 2 to 15 carbon atoms or a substituted product thereof). Examples of polyether components

[0038]

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(R represents an alkylene group having 2 to 15 carbon atoms or a substituent thereof). Examples of the polyester component include

[0040]

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(Wherein R ^I , R ^II and R ^III represent an alkylene group having 2 to 15 carbon atoms or a substituted product thereof). The polyamide-based elastomer also includes a random copolymer of nylon 6, nylon 66, nylon 610, nylon 11, and nylon 12.

What is a silicone elastomer?

[0043]

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Is a polysilokinsan represented by the formula:
As a methyl group, ethyl group, propyl group, phenyl group, vinyl group, fluorine alkyl group and

[0045]

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(M is 1 to 4) and the like.
Examples of the fluorine-based elastomer include vinylidene fluoride-perfluoropropane copolymer, vinylidene fluoride-ethylene trifluoride ethylene chloride copolymer, ethylene tetrafluoride ethylene-propylene copolymer, and ethylene tetrafluoroethylene chloride-
In addition to C ₂ F ₃ OCF ₃ copolymer and the like, a fluorine-containing acrylate polymer such as a dihydroperfluorobutyl acrylate polymer and a trifluoromethoxydihydroperfluoroacrylate copolymer, a fluorosilicone-based elastomer, and an elastomer having the following structural formula

[0047]

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And phosphazene having the following structural formula

[0049]

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And the like.

The polysulfide elastomer is:

[0052]

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(M is 1 to 4). Examples of R include —CH ₂ —, —C ₂ H ₄ —, —C ₃ H ₆ —, and —C ₄ H _{8.
-, - C 6 H 12 -} , - C 10 H 20 -, - C 2 H 4 OC 2 H
_{4 -, - C 2 H 4} OCH 2 OC 2 H 4 -, - C 2 H 4 O
C ₂ H ₄ OC ₂ H ₄ − and those having the following structural formulas are exemplified.

[0054]

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(R 'is an alkyl group having 1 to 4 carbon atoms) These elastomers are used in one kind or in a mixture of two or more kinds.

The mixing ratio of the thermoplastic polyester in the resin composition used in the present invention is 5 to 80 parts by weight, preferably 10 to 70 parts by weight with respect to 100 parts by weight of PPS. However, it is not preferable because it causes poor surface appearance such as lowering of economic efficiency and floating of the reinforcing material particularly when reinforced with an inorganic filler, and conversely, if it is more than this, hydrolysis resistance is significantly reduced, which is not preferable. . The compounding amount of the modified polyolefin is 5 to 80 parts by weight. If the compounding amount is less than this, the impact resistance decreases, and if the compounding amount exceeds this range, heat resistance and moldability decrease, which is not preferable. The amount of the thermoplastic elastomer is from 5 to 80 parts by weight. If the amount is less than this range, the moldability, especially the fluidity, becomes insufficient, and if it exceeds this range, the heat resistance is unfavorably deteriorated.

In the present invention, the fibrous and / or granular reinforcing material is not an essential component, but if necessary, PPS may be used.
It can be blended in an amount not exceeding 200 parts by weight with respect to 100 parts by weight. Usually, by blending in a range of 10 to 150 parts by weight, improvement in strength, rigidity, heat resistance, dimensional stability, etc. is aimed at. It is possible.

Examples of the fibrous reinforcing material include glass fiber, alumina fiber, silicon carbide fiber, ceramic fiber, asbestos fiber, gypsum fiber, metal fiber and carbon fiber.

Examples of the granular reinforcing material include silicates such as walasteinite, sericite, kaolin, mica, clay, bentonite, asbestos, talc, alumina silicate, alumina, silicon chloride, magnesium oxide, zirconium oxide, and titanium oxide. Metal oxides, calcium carbonate, magnesium carbonate, carbonates such as dolomite,
Sulfates such as calcium sulfate and barium sulfate, glass and
Examples include beads, boron nitride, silicon carbide and silica, which may be hollow. These reinforcements are 2
More than one kind can be used in combination, and if necessary, can be used after being pretreated with a coupling agent such as a silane-based or titanium-based coupling agent.

The method for preparing the resin composition used in the present invention is not particularly limited, and powder, pellets, flakes and, if necessary, a reinforcing material of a PPS, a thermoplastic polyester resin, a modified polyolefin and a thermoplastic elastomer are used in a ribbon blender. , A Henschel mixer, a V blender, and the like, and then melt kneading using a Banbury mixer, a mixing roll, a single or twin screw extruder, a kneader, or the like. Above all, a typical method is melt kneading using a single-screw or twin-screw extruder having a sufficient kneading force.

The resin composition comprising PPS and a thermoplastic polyester resin, a modified polyolefin and a thermoplastic elastomer used in the present invention contains an antioxidant, a heat stabilizer, a lubricant, and the like within a range not to impair the effects of the present invention. Normal additives such as crystal nucleating agents, UV inhibitors, coloring agents, and flame retardants, and small amounts of other polymers can be added.
For the purpose of controlling the degree of crosslinking, a conventional peroxide and a crosslinking accelerator such as a metal thiophosphinate described in JP-A-59-131650 or JP-A-58-2.
Dialkyltin dicarboxylates described in 04045 and JP-A-58-204046,
It is also possible to incorporate a crosslinking inhibitor such as aminotriazole.

The blow-molded article of the present invention is obtained by subjecting the resin composition obtained as described above to a generally known blow molding method, that is, basically supplying the resin composition to an extruder and extruding the resin composition. Form parison, then 2
To three-dimensional hollow molded articles. Typical examples of commonly known blow molding methods include a direct blow method, an accumulator blow method and a multidimensional blow method, and a multilayer blow molding method and an exchange blow molding method used in combination with other materials. It is of course possible to apply.

Specific examples of the blow-molded blow molded article of the present invention thus formed include bottles, tanks and ducts, and these are blow-molded articles having excellent heat resistance, chemical resistance and impact resistance. It is useful for chemical solution containers, air conditioning ducts, ducts and pipes in an automobile engine room, and the like.

[0064]

The present invention will be described in more detail with reference to the following examples. The properties described in the examples and comparative examples were measured by the following methods.

(1) Moldability: 50 pellets of the resin composition
It is supplied to a blow molding machine equipped with a mmφ extruder and extruded at a cylinder temperature of 320 ° C.
After forming a parison having a width of 500 mm, air was blown into the mold to form a square prism-shaped container having a side of 150 mm and a height of 500 mm. The thickness of each of the upper and lower portions of the molded article body was measured at five locations, and those having a difference between the upper and lower average thicknesses of 1 mm or less were judged to be good, and those having a thickness difference of more than 1 mm were judged to be defective. .

(2) Heat resistance: When a 2.5 kg load is applied to the above-mentioned container body at a predetermined temperature for 1 hour, the maximum temperature at which the deformation is within 2 mm is measured. And

(3) Impact resistance: The container was dropped on a concrete floor from a height of 1 m, and the container was visually inspected for damage and cracks. The test was performed at n = 20, and the number of pieces that did not break was counted. The percentage of non-breakage was expressed as a percentage and used as a measure of impact resistance.

Reference Example 1 (Polymerization of PPS) 3.20 kg (25 mol, 40% water of crystallization) of sodium sulfide was placed in an autoclave.
), 4 g of sodium hydroxide, 1.36 kg (about 10 mol) of sodium acetate trihydrate and N-methyl-2-
7.9 kg of pyrrolidone (hereinafter abbreviated as NMP) was charged, and the temperature was gradually raised to 205 ° C. while stirring, and 1.3 ml of water was added.
About 1.5 l of distillate containing 6 kg was removed. 3.75 kg (25.5 mol) of 1,4-dichlorobenzene was added to the residual mixture.
And 2 kg of NMP, and the mixture was heated at 265 ° C. for 3 hours.
The reaction product is washed 5 times with 70 ° C. hot water,
After drying under reduced pressure for a time, a melt viscosity of about 1500 poise (320
° C., powdery PPS shear rate of 10 sec ^-1) (P-1) to about 2
kg gained.

The same operation was repeated and applied to the examples described below.

Reference Example 2 (Acid treatment of PPS) About 2 kg of the PPS powder obtained in Reference Example 1 was heated at 90 ° C. to pH 4
And stirred for about 30 minutes, filtered, washed with deionized water at about 90 ° C. until the pH of the filtrate became 7, and dried under reduced pressure at 120 ° C. for 24 hours to obtain a powder. To obtain an acid-treated PPS (P-2).

REFERENCE EXAMPLE 3 (Hot water treatment of PPS) About 2 kg of the PPS powder obtained in Reference Example 1 and 10 l of deionized water were charged into an autoclave, sealed at normal pressure, heated to 175 ° C., and stirred. While keeping the temperature for about 30 minutes, it was cooled. The contents were taken out and filtered, and the operation of immersing, stirring, and filtering PPS in about 10 l of deionized water at 70 ° C. was repeated five times. Thereafter, the resultant was dried under reduced pressure at 120 ° C. for 24 hours to obtain hot water washed PPS (P-3).

REFERENCE EXAMPLE 4 (PPS solvent washing) Approximately 2 kg of the powder obtained in Reference Example 1 was heated to 100 ° C. in 20 l of NMP.
The mixture was stirred for about 30 minutes, filtered, and then washed with ion-exchanged water at about 90 ° C. This is 120 ° C
And dried under reduced pressure for 24 hours to obtain NMP washed PPS (P-4).

Example 1 100 parts by weight of PPS (PPS-2) obtained in Reference Example 2 and polyethylene terephthalate 50 having a relative viscosity of 2.6
Parts by weight, ethylene / glycidyl methacrylate = 88 /
12 (weight ratio) copolymer and 25 parts by weight of ethylene / propylene copolymer ("TAHMA" P06 manufactured by Mitsui Petrochemical Co., Ltd.)
80) After dry blending 25 parts by weight and 15% by weight of glass fiber with a Henschel mixer,
It is put into the hopper of the single screw extruder and the cylinder temperature is 320
The mixture was melt-kneaded at 40 ° C. and a screw rotation speed of 40 rpm to form pellets. The pellets were dried with hot air at 130 ° C. for 3 hours, and then blow-molded using the blow molding machine described above.
A square prism-shaped container having a size of 50 mm and a height of 500 mm was formed. As a result, a hollow molded article having a small parison drawdown and good surface appearance was obtained. The physical properties of this hollow molded product were as shown in Table 2, and the moldability was also good.

Comparative Example 1 Melt kneading was carried out in exactly the same manner as in Example 1 except that polyethylene terephthalate was not used. The obtained pellets were dried and then supplied to a blow molding machine. Here, as shown in Table 2, a blow molded article having no parison drawdown during blow molding and having heat resistance and impact resistance without uneven thickness was obtained, but due to the floating of glass fibers on the molded article surface. There was a rough feeling and the appearance was poor.

Example 2 Example 1 was repeated except that an ethylene / butene-1 copolymer ("Tafuma" A4085 manufactured by Mitsui Petrochemical Co., Ltd.) was used instead of the ethylene / propylene copolymer as the thermoplastic elastomer component. Kneading was performed in the same procedure as described above, and blow molding was performed. Table 2 shows the results.

Examples 3 to 5 PPS, thermoplastic polyester, ethylene / glycidyl methacrylate copolymer and thermoplastic elastomer were changed as shown in Table 1, and kneading and blow molding were carried out in the same procedure as in Example 1. did. In each case, a blow-molded article having a good surface appearance with no draw-down of the parison at the time of blow molding and no rise of the glass fiber was obtained. The physical properties of the obtained hollow molded product are as shown in Table 2, and the uniformity, heat resistance and impact resistance of the molded product were excellent.

[0077]

[Table 1]

[0078]

[Table 2]

Example 6 Melting and kneading were carried out in exactly the same manner as in Example 1 except that the glass fiber was not blended, and the obtained pellets were blow-molded under the same conditions as in Example 1 to give an appearance. Good molded products were obtained. It had good moldability and excellent impact resistance (100% non-destructive rate in drop test).

[0080]

The blow molded article of the present invention has excellent blow moldability, impact resistance and heat resistance, and is useful for applications such as chemical resistant tanks, bottles and ducts for automobiles. Can be used.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B29C 49/00-49/80 C08L 1/00-101/16

Claims (2)

(57) [Claims] 1 to 100 parts by weight of a polyphenylene sulfide resin, 5 to 80 parts by weight of a thermoplastic polyester resin,
5-80 parts by weight of a modified polyolefin comprising a glycidyl ester of an α-olefin and an α, β-unsaturated carboxylic acid, 5-80 parts by weight of a thermoplastic elastomer, and 0-200 parts by weight of a fibrous and / or granular reinforcing material are added. Blow-molded article obtained by blow-molding the polyphenylene sulfide resin composition. 2. The polyphenylene sulfide resin has been deionized by at least one method selected from the group consisting of washing with an aqueous acid solution, washing with hot water, and washing with an organic solvent.
The blow-molded blow product as described.