JPH07228765A - Permanently antistatic polyphenylene ether resin composition - Google Patents

Abstract

PURPOSE:To obtain a polyphenylene ether (PPE) resin compsn. which has permanent antistatic properties and in which ingredients are well compatibilized with each other. CONSTITUTION:This compsn. is obtd. by compounding a PPE resin or its mixture with a styrene resin (A), a styrene resin having structural units derived from glycidyl (meth)acrylate (B), and an antistatic agent which is a polyamide elastomer contg. 1mmol/kg or higher carboxyl groups (C) in wt. ratios of C/(A+B) and B/C of 5.1-25% and 50-300%, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic polyphenylene ether (hereinafter sometimes referred to as PPE) resin composition.

[0002]

2. Description of the Related Art Polyphenylene ether resins have excellent heat resistance and mechanical strength, electrical properties, water resistance, flame retardancy, etc., and are used in various applications as molding resin materials. There is. However, the PPE-based resin has a great drawback that it has a poor meltability because of its high melt viscosity, and also has a poor solvent resistance and impact resistance.

In order to improve such problems, a composition obtained by blending a styrene resin with a PPE resin to improve moldability and impact resistance is known as, for example, NORYL (trademark: manufactured by General Electric Company). There is.

However, since such a composition is electrically insulative, it is charged with static electricity during use and adheres with dust to impair its appearance. Further, when it is used as a case or a part of electric / electronic equipment, it may cause malfunction or failure of the equipment due to static electricity failure.

In order to solve these problems, conventionally,
A method of kneading an antistatic agent into a resin composition has been used. As the antistatic agent, anionic, cationic, or nonionic surfactants are used. However, when these surfactants are blended, the appearance of the molded product may be impaired by the occurrence of silver streaks due to poor thermal stability of the surfactant. In addition, the antistatic effect is easily lost by washing or rubbing the molded product, and permanent antistatic property cannot be obtained.

[0006] Attempts have also been made to blend polyalkylene oxide into PPE (Japanese Patent Laid-Open No. 59-20354). However, polyalkylene oxide has poor compatibility with PPE, and therefore exhibits an antistatic effect. If the required amount is used, the strength of the molded product is reduced, the layered peeling is caused, the impact strength is reduced, and the like, which is not practical. Further, attempts have been made to blend a copolymer of polyalkylene oxide and polyamide into PPE to obtain a permanent antistatic effect (JP-A-4-246461 and JP-A-4-202256). ). However, since this copolymer is also not sufficiently compatible with PPE, if the amount required for obtaining the antistatic effect is added, it is inevitable that the impact strength and weld strength of the molded article are lowered.

Other known methods include blending conductive fillers such as conductive carbon black, metal flakes, and carbon fibers, but the molding processability is reduced, the coloring of the material is limited, and the appearance of the molded article is degraded. For that reason, its use is limited.

Therefore, an object of the present invention is to provide a polyphenylene ether resin composition having a permanent antistatic property and in which each component is well compatibilized.

[0009]

DISCLOSURE OF THE INVENTION The present inventors have blended a PPE-based resin or a styrene-based resin with a styrene-based resin modified with glycidyl (meth) acrylate and an antistatic agent having a specific structure. As a result, a composition having a permanent antistatic effect was obtained, and it was found that the components in this composition were well compatibilized, and the present invention was reached. That is, the present invention relates to (A) a polyphenylene ether resin or a styrene resin,
A resin composition containing an antistatic agent, which is (B) a styrene resin having a unit derived from glycidyl (meth) acrylate and (C) a polyamide elastomer containing 1 mmol / kg or more of a carboxyl group. ,
(C) is included in a proportion of 5.1 to 25 parts by weight with respect to a total of 100 parts by weight of (A) and (B), and (B) is in a proportion of 50 to 300% by weight relative to (C). The present invention provides a permanent antistatic polyphenylene ether-based resin composition, characterized in that

The PPE resin used in the present invention has, for example, the general formula (Formula 1):

[0011]

[Chemical 1] (In the above formula, R ₁ , R ₂ , R ₃ and R ₄ are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group or at least two carbon atoms between the halogen atom and the phenyl ring. Represents a monovalent substituent selected from those having no tertiary α-carbon and having a haloalkyl group or a haloalkoxy group having n, and n is an integer representing the degree of polymerization)
Is a general term for the polymer represented by the formula (1), and may be a single type of the polymer represented by the above general formula or a copolymer in which two or more types are combined. In a preferred embodiment, R ₁ and R ₂ are alkyl groups having 1 to 4 carbon atoms, and R ₃
And R ₄ is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. For example, poly (2,6-dimethyl-1,4-phenylene) ether, poly (2,6-diethyl-1,4-phenylene) ether, poly (2-methyl-6-ethyl-1,4)
-Phenylene) ether, poly (2-methyl-6-propyl-1,4-phenylene) ether, poly (2,6-dipropyl-1,4-phenylene) ether, poly (2-ethyl-6-propyl-1) , 4-phenylene) ether, and the like. As the PPE copolymer, a copolymer containing a part of alkyl tri-substituted phenol such as 2,3,6-trimethylphenol in the polyphenylene ether repeating unit can be mentioned. Also these PPE
It may be a copolymer in which a styrene compound is grafted. As the styrene compound-grafted polyphenylene ether, a styrene compound is added to the above PPE.
For example, it is a copolymer obtained by graft-polymerizing styrene, α-methylstyrene, vinyltoluene, chlorostyrene and the like.

Styrenic resins are known per se and have the general formula (Formula 2):

[0013]

[Chemical 2] (In the formula, R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Z represents a substituent which is a halogen atom or an alkyl group having 1 to 4 carbon atoms, and x is an integer of 0 to 5. ) Must have at least 25% by weight or more of repeating structural units derived from the aromatic vinyl compound represented by the formula (1) in the polymer. Examples of such a styrene polymer include styrene and its derivatives (for example, p-methylstyrene, α-methylstyrene, α-methyl-p-
(Methylstyrene, chlorostyrene, bromostyrene, etc.)
And homopolymers of styrene, styrene copolymers obtained by mixing or modifying elastomeric substances such as polybutadiene, polyisoprene, butyl rubber, EPDM, ethylene-propylene copolymers, natural rubber, and styrene-containing copolymers. Examples thereof include styrene-acrylonitrile copolymer (SAN), styrene-butadiene copolymer, and styrene-acrylonitrile-butadiene copolymer (ABS). Preferred styrenic resins for the present invention are homopolystyrene and rubber-reinforced polystyrene (HIPS).

The proportion of the PPE resin and the styrene resin in (A) is 90 to 0 parts by weight of the styrene resin to 10 to 100 parts by weight of the PPE resin, preferably PP.
Styrene resin 90 to 10 to 90 parts by weight of E resin
-10 parts by weight, more preferably 20 to 8 PPE resin
80 to 20 parts by weight of styrene resin relative to 0 parts by weight.

Next, the component (B) used in the present invention
Is a styrene resin having a unit derived from glycidyl (meth) acrylate. The styrene-based resin having a unit derived from glycidyl (meth) acrylate is glycidyl methacrylate (GMA) and / or a copolymer of glycidyl acrylate and styrene or a derivative thereof. Such a copolymer (including a terpolymer) preferably contains 1% by weight or more of a unit derived from glycidyl (meth) acrylate. Examples of styrene derivatives include p-methylstyrene, α
-Methyl styrene, α-methyl-p-methyl styrene,
Examples include chlorostyrene and bromostyrene. Preferred are GMA-styrene copolymer and GMA-styrene-acrylonitrile copolymer. The epoxy equivalent of the copolymer is preferably 100 to 3500 g /
eq.

The component (B) is 5 relative to (C) described later.
The amount is 0 to 300% by weight, preferably 50 to 200% by weight, more preferably 90 to 150% by weight. When the amount of (B) is less than the lower limit or more than the upper limit of the above range, neither compatibilization is sufficiently performed in the composition, and delamination occurs in the molded product.

Next, the component (C) is an antistatic agent component, which is a polyamide elastomer containing 1 mmol / kg or more of carboxyl groups. Such a polyamide elastomer is preferably a block or graft copolymer containing (i) a polyamide-forming component and (ii) a poly (alkylene oxide) glycol as constituents of the copolymer.

(I) The polyamide-forming component means a compound or copolymer capable of forming a polyamide. As the polyamide-forming component, specifically, ω-aminocaproic acid, ω-aminoenanthic acid, ω-aminocaprylic acid,
ω-aminopergonic acid, ω-aminocapric acid and 11
-Aminocarboxylic acids such as aminoundecanoic acid and 12-aminododecanoic acid; caprolactam, enanthlactam,
Lactams such as capryllactam and laurolactam; copolymers of diamine and dicarboxylic acid such as hexamethylenediamine-adipic acid (salt), hexamethylenediamine-sebacic acid (salt), hexamethylenediamine-isophthalic acid (salt) (The end of the carboxyl group may be in the form of a salt), and caprolactam, 12-aminododecanoic acid and hexamethylenediamine-adipic acid (salt) are particularly preferably used.

(Ii) Examples of poly (alkylene oxide) glycols are poly (ethylene oxide) glycol, poly (1,2-propylene oxide) glycol, poly (1,3-propylene oxide) glycol and poly (tetramethylene oxide). ) Glycol, poly (hexamethylene oxide) glycol, a block or random copolymer of ethylene oxide and propylene oxide, a block or random copolymer of ethylene oxide and tetrahydrofuran, and the like. Among them, poly (ethylene oxide) glycol is particularly preferably used because of its excellent antistatic effect.

The number average molecular weight of the poly (alkylene oxide) glycol used is 200 to 6,000, especially 400 to 4,000.
It is preferably 0.

Further, (ii) poly (alkylene oxide)
The diol compounds represented by the following formulas (I) to (III) can be used in combination with glycol.

[0022]

[Chemical 3] [In the above formula, R ¹ and R ² each independently represent at least one of an ethylene oxide group and a propylene oxide group, and Y is a direct covalent bond, an alkylene group having 1 to 6 carbon atoms, an alkylidene group, a cycloalkylidene group. , Arylalkylidene group, -O-, -SO-, -SO
_{2 -, - CO -, -} S -, - CF 2 -, - C (CF 2)
Represents _2- or -NH-, and m and n are each R ¹
And an integer representing the number of R ² ] Specific examples of the above compounds include ethylene oxide and / or propylene oxide adduct of bisphenol A, ethylene oxide and / or propylene oxide adduct of bisphenol S, and brominated bisphenol A. Ethylene oxide and / or propylene oxide adducts of bisphenols such as ethylene oxide and / or propylene oxide adducts; ethylene oxide and / or propylene oxide adducts of 4,4'-dihydroxybenzophenone; ethylene oxide and / or propylene oxide adducts of hydroquinone; Ethylene oxide and / or propylene oxide adducts of dihydroxynaphthalene and their block (co) polymers; 4,4 '-(dihydroxy) biphe Ethylene oxide and / or propylene oxide adducts of Le; bis (4-hydroxyphenyl) ethylene oxide and / or propylene oxide adducts of sulfides;
Ethylene oxide and / or propylene oxide adduct of bis (4-hydroxyphenyl) sulfoxide; Ethylene oxide and / or propylene oxide adduct of bis (4-hydroxyphenyl) methane; Ethylene oxide and / or propylene of bis (4-hydroxyphenyl) ether Oxide adducts; ethylene oxide and / or propylene oxide adducts of bis (4-hydroxyphenyl) amine; ethylene oxide and / or propylene oxide adducts of 2,2-bis (4-hydroxyphenyl) ethane; 1,1-bis ( Bisphenols such as ethylene oxide and / or propylene oxide adduct of 4-hydroxyphenyl) cyclohexane.

Preferred diol compounds are ethylene oxide adducts of hydroquinone, bisphenol A ethylene oxide adducts, brominated bisphenol A ethylene oxide adducts, bisphenol S ethylene oxide adducts, dihydroxynaphthalene ethylene oxide adducts and block polymers thereof. In particular, ethylene oxide adduct of bisphenol A and its block polymer are preferable. Also, brominated bisphenol A
The flame retardancy of the resin composition can be improved by using the ethylene oxide adduct of bisphenol S or the ethylene oxide adduct of bisphenol S.

These poly (alkylene oxide) glycols and the diol compounds represented by the above formulas (I) to (III) can be used alone or in combination of two or more. The amount of the diol compound represented by any of the above formulas (I) to (III) is not particularly limited, but it is 0 to 0 as a polyester unit with respect to the polyether ester unit obtained by copolymerization of all diol components and dicarboxylic acid. It is preferably in the range of 60% by weight.

Further, within a range that does not impair the effects of the present invention,
Other diol compounds can be copolymerized. Examples of such diol compounds include aliphatic diols such as ethylene glycol, 1,4-butanediol and hexanediol, aromatic diols such as p-xylylene glycol and m-xylylene glycol, and 1,2-cyclohexanediol. , 1,3-cyclohexanediol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, 1,3-
An alicyclic diol compound such as cyclohexanedimethanol can be copolymerized.

A block or graft copolymer containing (i) a polyamide-forming component and (ii) a poly (alkylene oxide) glycol as a constituent of the copolymer is (i) and (ii) or this and the above diol. , An ester reaction or an amide reaction depending on the terminal group.

The component (C) is required to have a carboxyl group of 1 mmol / kg or more, preferably 20 mmol / kg or more. When the carboxyl group content is less than the above value, the compatibilization in the composition is not sufficient, and delamination occurs in the molded product. In the present specification, the carboxyl group content is the Hiranuma automatic titrator
It is obtained by potentiometric titration using COMTITE-900 and 0.02 N KOH / benzyl alcohol as a titrant.

The above-mentioned copolymer may further contain a dicarboxylic acid as a source of carboxyl groups.
Such dicarboxylic acid has 4 to 20 carbon atoms.
Preferred are, for example, terephthalic acid, isophthalic acid, phthalic acid, naphthalene-2,6-dicarboxylic acid, naphthalene-2,7-dicarboxylic acid, diphenyl-4,4'-dicarboxylic acid, diphenoxyethanedicarboxylic acid and 3 -Aromatic dicarboxylic acids such as sodium sulfoisophthalate, 1,
Alicyclic dicarboxylic acids such as 4-cyclohexanedicarboxylic acid, 1,2-cyclohexanedicarboxylic acid and dicyclohexyl-4,4'-dicarboxylic acid and succinic acid, oxalic acid, adipic acid, sebacic acid and dodecanedicarboxylic acid (decanedicarboxylic acid) Examples thereof include aliphatic dicarboxylic acids, and terephthalic acid, isophthalic acid, 1,4-cyclohexanedicarboxylic acid, adipic acid, sebacic acid and dodecanedioic acid are particularly preferably used from the viewpoint of polymerizability, color tone and physical properties.

Further, a diamine compound can be optionally used, and examples thereof include aromatic, alicyclic and aliphatic diamines. Among them, hexamethylenediamine, which is an aliphatic diamine, is preferably used for economical reasons.

The content of the polyether ester or the polyether component is preferably in the range of 90 to 10% by weight based on the whole copolymer. If it is too large, the mechanical properties tend to be lowered, and if it is too small, the antistatic property tends to be poor. There is.

The method for producing the above-mentioned component (C) polyamide elastomer is not particularly limited, and for example, the methods described in JP-A-56-65026 and JP-A-60-177022 can be used.

The component (C) is blended in an amount of 5.1 to 25 parts by weight, preferably 10 to 20 parts by weight, based on 100 parts by weight of the total of (A) and (B). If the amount of (C) is too small, the antistatic effect cannot be obtained, and if it is too large, the heat resistance and mechanical properties of the resin composition are impaired.

In the resin composition of the present invention, in addition to the above components, in order to enhance the activity of the reaction between the carboxyl group contained in the component (C) and the glycidyl group contained in the component (B), D) A catalyst compound may be included. Preferred catalyst compounds are salts which do not contain a direct carbon-phosphate bond and contain at least one of an alkali metal cation, an alkaline earth metal cation and a halogen anion.
Many compounds are included in this class. For example, alkali metal halide, alkali metal carboxylate,
Alkali metal enolate, amine hydrohalide,
Included are alkali metal carbonates and quaternary ammonium halides. Specifically, lithium fluoride, lithium iodide, potassium bromide, potassium iodide, sodium dihydrogen phosphate, sodium acetate, sodium benzoate, sodium caproate, sodium stearate,
Examples include sodium ascorbate and dodecyltrimethylammonium bromide.

Salts of aliphatic carboxylic acids having at least about 18 carbon atoms, especially the alkali metal salts of stearic acid, preferably sodium stearate, have certain advantages over other catalyst compounds. Are often preferred. First, the utilization of such salts allows the extrusion of carboxyl group-containing compounds-epoxy group containing compounds at a substantially higher feed rate than if they were not present. Second, such salts tend to suppress the formation of by-product acrolein from the glycidyl reactant. Third, such salts provide substantially less odor to the composition than other compounds useful as catalysts, especially amines.

The above-mentioned (D) catalyst compound is (A),
With respect to 100 parts by weight in total of (B) and (C), the amount is usually 1 part by weight or less, preferably 0.01 to 1 part by weight,
More preferably 0.03 to 0.1 part by weight is blended. When the resin composition of the present invention further contains (E) a phosphoric acid ester-based flame retardant, which will be described later, the (D) catalyst compound includes (A), (B), (C) and (E). 100 in total
The amount is usually 1 part by weight or less, preferably 0.01 to 1 part by weight, and more preferably 0.03 to 0.1 part by weight.
It is compounded in parts by weight.

The resin composition of the present invention may further optionally contain (E) a phosphate ester flame retardant. The phosphoric acid ester flame retardant has the following formula (Formula 4):

[0037]

[Chemical 4] (Here, R ^a , R ^b , R ^c, and R ^d each independently represent a hydrogen atom or an organic group, and R ^a = R ^b =
Except when R ^c = R ^d = H. X represents a divalent or higher valent organic group, x is 0 or 1, y is 1 or more, for example, an integer of 30 or less, and z is an integer of 0 or more). . However, it is not limited to these.

In the above formula, examples of the organic group include an alkyl group which may be substituted or not, a cycloalkyl group and an aryl group. When substituted, examples of the substituent include an alkyl group, an alkoxy group, an alkylthio group, a halogen, an aryl group, an aryloxy group, an arylthio group, a halogenated aryl group, and the like. A combined group (for example, an arylalkoxyalkyl group) or a group obtained by combining these substituents by an oxygen atom, a sulfur atom, a nitrogen atom or the like (for example, an arylsulfonylaryl group) may be used as a substituent. Good. The divalent or higher valent organic group means a divalent or higher valent group formed by removing one or more hydrogen atoms bonded to carbon atoms from the above-mentioned organic group. For example, an alkylene group, and preferably (substituted)
Examples include phenylene groups and polynuclear phenols such as those derived from bisphenols, and the relative positions of two or more free valences are arbitrary. Particularly preferred is
Examples thereof include hydroquinone, resorcinol, diphenylol methane, diphenylol dimethyl methane, dihydroxydiphenyl, p, p'-dihydroxydiphenyl sulfone and dihydroxynaphthalene.

Specific examples of the phosphate compound include trimethyl phosphate, triethyl phosphate, tributyl phosphate, trioctyl phosphate, tributoxyethyl phosphate, triphenyl phosphate, tricresyl phosphate, cresyl phenyl phosphate, octyl diphenyl. Phosphate,
Diisopropylphenyl phosphate, tris (chloroethyl) phosphate, tris (dichloropropyl) phosphate, tris (chloropropyl) phosphate,
Bis (2,3-dibromopropyl) -2,3-dichloropropyl phosphate, tris (2,3-dibromopropyl) phosphate and bis (chloropropyl) monooctyl phosphate, R ^{a to} R ^d are alkoxy such as methoxy, ethoxy and Propoxy, or preferably a (substituted) phenoxy, such as phenoxy, methyl (substituted) phenoxy, bisphenol A bisphosphate, hydroquinone bisphosphate, resorcin bisphosphate, polyoxyphosphate such as trioxybenzene triphosphate, and the like, preferably trioxybenzene triphosphate. Phenyl phosphate and various polyphosphates.

The above (E) phosphate ester flame retardant is
The amount is usually 30 parts by weight or less, preferably 3 to 30 parts by weight, based on 100 parts by weight of the total of (A), (B) and (C).

In addition to the above-mentioned components, the resin composition of the present invention may contain other conventional additives such as pigments at the time of mixing and molding the resin according to the purpose, as long as the physical properties thereof are not impaired. Dyes, reinforcing agents (glass fiber, carbon fiber, etc.),
Add fillers (carbon black, silica, titanium oxide, etc.), heat-resistant agents, antioxidants, weathering agents, lubricants, release agents, crystal nucleating agents, plasticizers, fluidity improvers, antistatic agents, etc. You can

There is no particular limitation on the method for producing the resin composition of the present invention, and ordinary methods can be satisfactorily used. However, melt mixing is generally preferred. The use of small amounts of solvent is possible, but generally not required. Examples of the apparatus include extruders, Banbury mixers, rollers, kneaders, etc., which are operated batchwise or continuously. The order of mixing the components is not particularly limited.

[0043]

In the resin composition of the present invention, an antistatic effect can be achieved by kneading the component (C) antistatic agent into the component (A) PPE resin, and the carboxyl group in the antistatic agent is a component. It is presumed that good compatibility of each component can be obtained by reacting with the glycidyl group in (B).

[0044]

The present invention will be further described by the following examples.

The following compounds were used in the following examples and comparative examples. (A) PPE resin PPE-1: Intrinsic viscosity (measured in chloroform at 25 ° C.) 0.48 dl / g poly (2,6-dimethyl-1,4-phenylene) ether, manufactured by GE Plastics Co., Ltd. PPE-2: Intrinsic viscosity (measured in chloroform at 25 ° C.) 0.46 dl / g poly (2,6-dimethyl-1,4-phenylene) ether, styrene resin PS-1 manufactured by GE Plastics Japan : High impact polystyrene (HIPS),
Trademark: HT-265, Mitsubishi Kasei Co., Ltd. PS-2: High Impact Polystyrene (HIPS),
Trademark: 876HF, Mitsui Toatsu Chemicals, Inc. PS-3: High Impact Polystyrene (HIPS),
Trademark: HT-644, manufactured by Mitsubishi Kasei Co., Ltd. (B) A unit derived from glycidyl (meth) acrylate
Styrenic resin having position MRF-1: Marproof G-1005SA, manufactured by NOF CORPORATION, styrene / glycidyl methacrylate / acrylonitrile copolymer, number average molecular weight (Mw) 100,000, epoxy equivalent 3,300 (g / eq.) MRF -2: Marproof G-1010S, manufactured by NOF CORPORATION, styrene / glycidyl methacrylate copolymer,
Number average molecular weight (Mw) 100,000, epoxy equivalent 1,700 (g / eq.) MRF-3: Marproof G-1015S, manufactured by NOF CORPORATION, styrene / glycidyl methacrylate copolymer,
Number average molecular weight (Mw) 100,000, epoxy equivalent 1,700 (g / eq.) (C) Antistatic agent ASA-1: IOS-6000; Trademark, Sanyo Kasei Co., Ltd., carboxyl group content 27.0 mmol / kg polyamide Elastomer (containing polyamide and polyethylene glycol, content of carboxyl group is 0.02 N KOH / as titration liquid, using Hiranuma automatic titrator COMTITE-900)
Determined by potentiometric titration using benzyl alcohol) ASA-2 (used in comparative examples): sodium salt of alkanesulfonate (Hoststat HS-1, manufactured by Hoechst AG), carboxyl group content 0 mmol / kg (E) Phosphate ester flame retardant TPP: triphenyl phosphate Examples 1-5 and Comparative Examples 1-5 Components at the ratios (weight ratios) shown in Table 1 are set using a twin-screw extruder at a set temperature of 280 ° C and a rotation speed of 350 rpm. It was melt-kneaded in to form pellets. Using this pellet, set temperature 250 ℃,
Injection molding was performed at a mold temperature of 60 ° C. The following tests were conducted on the obtained molded products. The results are shown in Table 2. (1) Izod impact strength Izod impact strength with 1/8 inch notch was measured according to ASTM D256. (2) Tensile Strength and Tensile Elongation Measured according to ASTM D638. ASTM
No. 1 dumbbell was used. (3) Flexural strength and flexural rigidity Measured according to ASTM D790. A 1/4 inch thick test piece was used. (4) Heat Deflection Temperature Measured according to ASTM D648. A 1/4 inch thick test piece was used. (5) Melt Index (MI) 10 kg at 250 ° C according to ASTM D1238
The load was measured. (6) Surface resistance of a 50 mm x 50 mm x 3 mm flat plate injection-molded product, which was conditioned at room temperature and humidity of 50% RH after molding, and washed with water (using an ultrasonic cleaner with distilled water After that, the water content was thoroughly removed, and the surface resistance was measured after the humidity was controlled for 1 hour (humidity: 50% RH at room temperature). (7) Appearance of molded product The appearance of the injection-molded product was visually judged.

[0046]

[Table 1]

[0047]

[Table 2]

[0048]

The PPE resin composition of the present invention exhibits a permanent antistatic effect, and since each component is sufficiently compatibilized, there is no delamination in the molded article. Therefore,
It can be used in various fields and is very useful.

Claims (8)

[Claims] 1. A polyphenylene ether-based resin (A) or a styrene-based resin thereof, (B) a styrene-based resin having a unit derived from glycidyl (meth) acrylate, and (C) a carboxyl group of 1 mmol / kg or more. A resin composition containing an antistatic agent, which is a polyamide elastomer to be contained, wherein (C) is contained in a proportion of 5.1 to 25 parts by weight based on 100 parts by weight of the total of (A) and (B). And (B) is 50 to 3 with respect to (C).
A permanent antistatic polyphenylene ether resin composition, which is contained in an amount of 00% by weight. 2. The resin composition according to claim 1, wherein the component (B) is selected from a glycidyl methacrylate-styrene copolymer and a glycidyl methacrylate-styrene-acrylonitrile copolymer. 3. The component (C) polyamide elastomer comprises:
The composition according to claim 1 or 2, which is a block or graft copolymer containing (i) a polyamide-forming component and (ii) a poly (alkylene oxide) glycol as constituents of the copolymer. 4. The component (C) polyamide elastomer comprises:
The composition according to any one of claims 1 to 3, which contains 20 mmol / kg or more of a carboxyl group. 5. The composition according to claim 1, wherein (B) is contained in a proportion of 50 to 200% by weight with respect to (C). 6. A catalyst compound (D) is further added to (A),
0.0 based on 100 parts by weight of the total of (B) and (C)
The composition according to claim 1, which comprises 1 to 1 part by weight. 7. The phosphorous ester type flame retardant (E) is further contained in an amount of 3 to 30 parts by weight based on 100 parts by weight of the total of (A), (B) and (C). The composition according to the item. 8. A catalyst compound (A), (B),
0.0 based on 100 parts by weight of the total of (C) and (E)
The composition according to claim 7, comprising 1 to 1 part by weight.