JPH0848841A - Resin composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition comprising a polyphenylene ether resin or its mixture with a PS resin, a thermoplastic polyester resin, and a specific graft-modified PS resin, excellent in molding flowability, oil resistance and mechanical characteristics, and useful for mechanical parts, etc. CONSTITUTION:This composition comprises (A) 95-5 pts.wt. of a polyphenylene ether resin alone or its mixture with a PS resin, (B) 5-95 pts.wt. of a thermoplastic polyester resin (preferably polyethylene terephthalate or polybutylene terephthalate), and (C) 1-100 pts.wt. (based on 100 pts.wt. of the total amount of the components A and B) of a graft-modified PS resin produced by reacting (i) 100 pts.wt. of a PS resin with (ii) 0.1-30 pts.wt. of a glycidyl group-containing modifying agent of formula I (Ar is a 6-22C aromatic hydrocarbon having one or more glycidyl groups; R is H, methyl) (preferably a compound of formula II) in the presence of (iii) 0.01-10 pts.wt. of a radical polymerization initiator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin composition, and more particularly to a resin composition having a good balance of mechanical properties, heat resistance, moldability and the like.

[0002]

2. Description of the Related Art Polyphenylene ether resins are resins having excellent mechanical properties, heat resistance, electrical properties, and dimensional stability, and are expected to be used in a wide range of applications. However, the resin is inferior in molding processability and oil resistance such as gasoline resistance as a drawback. A method of blending polystyrene or rubber-reinforced polystyrene with polyphenylene ether resin in JP-B-43-17812, JP-A-49-98858 and the like for the purpose of improving the molding processability of the polyphenylene ether resin. Is proposed. Although the molding processability is improved by these methods, the oil resistance is still unsolved.

Therefore, Japanese Patent Laid-Open Nos. 49-75662 and 59-154847 disclose, as a method for improving the moldability and oil resistance of the resin, a polyphenylene ether resin and polybutylene terephthalate or polyethylene terephthalate. A method of blending is proposed. According to the above method, the molding processability and oil resistance of the polyphenylene ether-based resin are improved, but the compatibility of the polyphenylene ether-based resin and the polyester-based resin is originally poor, so that the appearance of the molded product of the blend and the mechanical properties No good resin was obtained.

[0004]

DISCLOSURE OF THE INVENTION The present invention improves such compatibility and provides a polyphenylene ether resin, or a mixture of a polyphenylene resin and a polystyrene resin, a thermoplastic polyester resin, and a specific graft-modified polystyrene resin. And a resin composition having excellent molding fluidity, oil resistance, and mechanical properties.

[0005]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have found that a polyphenylene ether resin, or a mixture of a polyphenylene ether resin and a polystyrene resin, and a thermoplastic polyester resin are used. On the other hand, it was found that the above object can be achieved by blending a modified graft polystyrene resin obtained by reacting a polystyrene resin with a modifier having a specific glycidyl group in the presence of a radical polymerization initiator,
The present invention has been reached.

That is, the present invention provides the following component (A),
A resin composition comprising (B) and (C) is included. (A) Polyphenylene ether-based resin alone, or a mixture of 95 to 5 parts by weight of a mixture thereof and a polystyrene-based resin,
(B) 5 to 95 parts by weight of a thermoplastic polyester resin,
(C) 100 parts by weight of the polystyrene-based resin (a) based on 100 parts by weight of the total amount of the above components (A) and (B),
And (b) the following general formula (I)

[0007]

[Chemical 3]

(Wherein Ar represents a C _{6 to} C ₂₃ aromatic hydrocarbon group having at least one glycidyloxy group, and R represents a hydrogen atom or a methyl group). 0.1 to 30 parts by weight of denaturant,
(C) Graft-modified polystyrene-based resin 1 obtained by reaction in the presence of 0.01 to 10 parts by weight of radical polymerization initiator
~ 100 parts by weight.

The polyphenylene ether resin (A) used in the present invention has the following general formula (III):

[0010]

[Chemical 4]

(Wherein R _{1 to} R ₄ represent a hydrogen atom, a halogen, a hydrocarbon group, a substituted hydrocarbon group, a cyano group, an alkoxy group, a phenoxy group or a nitro group). I have. Specifically, 2,
6-dimethylphenol, 2,6-diethylphenol, 2-methyl-6-ethylphenol, 2-methyl-
6-allylphenol, 2-methyl-6-phenylphenol, 2,6-diphenylphenol, 2,6-dibutylphenol, 2-methyl-6-propylphenol, 2,3,6-trimethylphenol, 2,3- Dimethyl-6-ethylphenol, 2,3,6-triethylphenol, 2,3,6-tripropylphenol,
Heavy compounds obtained by oxidative polymerization of phenol compounds such as 2,6-dimethyl-3-ethylphenol and 2,6-dimethyl-3-propylphenol with oxygen or oxygen-containing gas using a coupling catalyst alone or in combination of two or more. It is united.

The polystyrene resin contained in the component (A) used in the present invention means a polystyrene polymer, a copolymer or a graft copolymer having a styrene content of 10% or more. For example, polystyrene, poly (α-methylstyrene), poly (p-methylstyrene) homopolymer, rubber-modified polystyrene, styrene-acrylonitrile copolymer, styrene-rubber polymer copolymer, styrene-
Examples thereof include a rubbery polymer-acrylonitrile copolymer, a copolymer of a styrene monomer and a maleimide monomer such as maleimide or N-phenylmaleimide, or an acrylamide monomer such as acrylamide. Or 2
Used in combination of two or more species. Further, all or part of styrene of the styrene polymer is α-methylstyrene, p-methylstyrene, vinylxylene, monochlorostyrene, dichlorostyrene, monobromostyrene, dibromostyrene, pt-butylstyrene, ethyl. It can be replaced with a styrene-based monomer such as styrene or vinylnaphthalene. Here, as the rubbery polymer, polybutadiene, styrene-butadiene copolymer rubber, styrene-acrylonitrile copolymer rubber, polybutyl acrylate,
Ethylene-propylene copolymer rubber, ethylene-propylene-diene copolymer rubber, copolymerization of isoprene-based rubber and the like, a rubber polymer capable of graft copolymerization is used,
These are used alone or in combination of two or more.

The thermoplastic polyester resin (B) used in the present invention is a polymer obtained by a condensation reaction containing an aromatic dicarboxylic acid or its ester-forming derivative and a diol or its ester derivative as main components. Examples thereof include copolymers and lactone ring-opening polymers, which may be used alone or in combination of two or more.

Examples of the aromatic dicarboxylic acid include terephthalic acid, isophthalic acid, phthalic acid, 2,6-naphthalenedicarboxylic acid, bis (p-carboxyphenyl) methane, anthracene dicarboxylic acid, 4,4'-diphenylcarboxylic acid, 4,4'-diphenyl ether dicarboxylic acid, or an ester-forming derivative thereof, or a mixture thereof may be used, and these may be used alone or in combination of two or more.

The diol component is a C ₂ -C ₁₀ aliphatic diol, that is, ethylene glycol, 1,3-propanediol, 1,4-butanediol, neopentyl glycol, 1,5-pentanediol, 1,6. -Hexanediol, 1,8-octanediol, cyclohexanediol, etc., or long-chain glycol having a molecular weight of 400 to 6000, that is, polyethylene glycol, poly-
Examples thereof include 1,3-polypropylene glycol and polytetramethylene glycol, which may be used alone or in combination of two or more.

Specific examples of the thermoplastic polyester resin of the present invention include polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polyethylene-2,6-naphthalate, polyethylene-1,2-bis (phenoxy). ) Ethane-4,4'-dicarboxylate and the like, which are used alone or in combination of two or more kinds.

The (C) graft-modified polystyrene-based resin of the present invention comprises (b) the following general formula (I) per 100 parts by weight of (a) polystyrene-based resin.

[0018]

Embedded image

(Wherein Ar represents a C _{6 to} C ₂₃ aromatic hydrocarbon group having at least one glycidyloxy group, and R represents a hydrogen atom or a methyl group). 0.1 to 30 parts by weight of a modifier (c)
It is obtained by graft addition in the presence of 0.001 to 10 parts by weight of a radical initiator. At this time, the component (b) is impregnated into the component (a) in the aqueous suspension with or without addition of a solvent for dissolving or swelling the component (a),
It may be graft-polymerized. Also, extruder, kneader,
The component (a) may be reacted in a molten state by using a melt-kneading device such as a mill, a heating roll, a Banbury mixer, or the like.

As the above-mentioned (a) polystyrene resin,
Polystyrene, poly (α-methylstyrene), poly (p
-Methylstyrene) homopolymer, rubber-modified polystyrene, styrene-acrylonitrile copolymer, styrene-rubbery polymer copolymer, styrene-rubbery polymer-
Examples thereof include acrylonitrile copolymers, copolymers of styrene monomers with maleimides, maleimide monomers such as N-phenylmaleimide, and acrylamide monomers such as acrylamide. These may be used alone or in combination of two or more. Used. Further, all or part of styrene of the styrene polymer is α-methylstyrene, p-methylstyrene, vinylxylene, monochlorostyrene, dichlorostyrene, monobromostyrene, dibromostyrene, pt-butylstyrene, ethyl. It can be replaced with a styrene-based monomer such as styrene or vinylnaphthalene.

Here, as the rubbery polymer, polybutadiene, styrene-butadiene copolymer rubber, styrene-acrylonitrile copolymer rubber, butyl polyacrylate, ethylene-propylene-diene rubber, ethylene-
Examples thereof include rubbery polymers capable of copolymerization and graft copolymerization of olefinic rubbers such as propylene rubbers and isoprene rubbers, and these may be used alone or in combination of two or more.

The modifier (a) for modifying the polystyrene resin (b) represented by the above general formula (I) and having a glycidyl group is an important constituent element of the present invention, and at least one each is present in the molecule. Derived from the denaturing agent having an acrylamide group and a glycidyl group. The acrylamide group includes a methacrylamide group in addition to the acrylamide group.

Such compounds are disclosed, for example, in JP-A-60 / 1985.
It can be manufactured by the method described in No. 130580. That is, the target compound is obtained by condensing an aromatic hydrocarbon having at least one phenolic hydroxyl group and N-methylolacrylamide or N-methylolmethacrylamide in the presence of an acidic catalyst, and then glycidylating the hydroxyl group with epihalohydrin. Is obtained. As the aromatic hydrocarbon having at least one phenolic hydroxyl group, a phenol compound having 6 to 23 carbon atoms is used. Specific examples of the phenol compound include phenol, cresol, xylenol, carvacrol, thymol, naphthol, resorcin, hydroquinone, pyrogallol, phenanthrol and the like. Among them, monohydric phenol having an alkyl substituent is preferable.

For example, when 2,6-xylenol and N-methylolacrylamide are used as starting materials, a compound represented by the following structural formula (II) can be obtained.

[0025]

[Chemical 6]

When orthocresol and N-methylolacrylamide are used as the starting materials, a compound represented by the following structural formula (IV) can be obtained.

[0027]

[Chemical 7]

The blending ratio of the modifier (b) having a glycidyl group is 0.1 to 30 parts of the modifier (b) having a glycidyl group with respect to 100 parts by weight of the polystyrene resin (a).
Parts by weight, preferably 0.1 to 15 parts by weight. When it is more than the above range, the mechanical properties and fluidity of the resin composition are deteriorated, and when it is less than the above range, the compatibilizing effect is poor.

Examples of the radical polymerization initiator (c) used in the production of the (C) graft-modified polystyrene-based resin include, for example, methyl ethyl ketone peroxide and di-
t-Butyl peroxide, 1,1-bis (t-butylperoxy) -3,3,5-trimethylcyclohexane, n-butyl-4,4-bis (t-butylperoxy) valerate, 2,5- Dimethylhexane-2,5-
Dihydroperoxide, dicumyl peroxide,
α, α'-bis (t-butylperoxy-m-isopropyl) benzene, 2,5-dimethyl-2,5-di (t-
Butylperoxy) hexane, 2,5-dimethyl-2,
Organic peroxides such as 5-di (t-butylperoxy) hexyne-3 and benzoyl peroxide, or, for example, 1,1′-azobis (cyclohexane-1-carbonitrile), 1-[(1-cyano -1-methylethyl)
Azo] formamide, 2-phenylazo-4-methoxy-2,4-dimethyl-valeronitrile, 2,2'-azobis (2-methylbutyronitrile), 2,2'-azobisisobutyronitrile, 2, 2'-azobis (2,4
4-trimethylpentane), 2,2'-azobis (2-
Examples thereof include azo compounds such as acetoxypropane) and 2,2′-azobis (2-acetoxybutane), and these may be used alone or in combination of two or more.

The amount of the radical polymerization initiator (c) used is preferably 0.01 to 10 parts by weight. If it is less than 0.01 part by weight, a sufficient reaction cannot be carried out.
If it is more than 10 parts by weight, (a) the polystyrene-based resin is decomposed and cross-linked, resulting in an insufficient balance of heat resistance, mechanical property stability and molding fluidity. It is more preferably 0.1 to 5 parts by weight.

In the present invention, the mixing ratio of the three components of (A) polyphenylene ether resin, or a mixture thereof with polystyrene resin, (B) thermoplastic polyester resin, and (C) graft modified polystyrene resin is ,
95 to 5 parts by weight of the component (A), 5 to 95 parts by weight of the component (B), and 1 to 100 parts by weight of the component (C) per 100 parts by weight of the total amount of the components (A) and (B), Preferably 3
˜50 parts by weight. If the mixing ratio of the above three components is out of the above range, the balance of physical properties such as heat resistance, impact resistance, surface properties, rigidity, moldability, and chemical resistance becomes insufficient.

The method for producing the resin composition of the present invention is not particularly limited. For example, (A) polyphenyl ether resin,
Alternatively, a mixture of this and a polystyrene resin, (B) a thermoplastic polyester resin, and (C) a graft-modified polystyrene resin are uniformly mixed using a stirrer or the like, and then melt-kneaded. The melt mixing method is not particularly limited in the present invention, and various conventionally known blenders such as an extruder, a heat roll, a Brabender, and a Banbury mixer may be used.

In the resin composition of the present invention, if necessary,
An organic / inorganic filler, a flame retardant, or a catalyst that enhances the reactivity of the (B) thermoplastic polyester resin and the (C) graft modified polystyrene resin can be added. As the filler, silica, talc, mica,
Examples thereof include glass fibers, neutral clays, carbon fibers, aromatic polyamide fibers, silicon carbide fibers and titanic acid fibers.
The above fillers are used alone or in combination of two or more at a ratio of 1 to 100 parts by weight with respect to 100 parts by weight of the resin composition of the present invention.

As the above flame retardant, tetrabromobisphenol A, 2,2-bis (4-hydroxy3,5-dibromophenyl) propane, hexabromobenzene, tris (2,3-dibromopropyl) isocyanurate,
2,2-bis (4-hydroxyethoxy-3,5-dibromophenyl) propane, decabromodiphenyl oxide, brominated polyphosphate, chlorinated polyphosphate, halogenated flame retardants such as chlorinated paraffin; ammonium phosphate , Tricresyl phosphate, triethyl phosphate, tris chloroethyl phosphate, tris (B-chloroethyl) phosphate, tris dichloropropyl phosphate, cresyl phenyl phosphate, xylenyl diphenyl phosphate, acidic phosphate ester, Phosphorus flame retardants such as nitrogen-containing phosphorus compounds; inorganic flame retardants such as red phosphorus, tin oxide, antimony trioxide, zirconium hydroxide, barium metaborate, aluminum hydroxide, magnesium hydroxide, brominated polystyrene, brominated poly - methylstyrene, brominated polycarbonate, brominated polyepoxy resin, chlorinated polyethylene, chlorinated poly α- methylstyrene, chlorinated polycarbonate, polymeric flame retardants and chlorinated polyepoxy resins are exemplified. The above flame retardants are used alone or in combination of two or more, and are used in a ratio of 1 to 50 parts by weight with respect to 100 parts by weight of the resin composition of the present invention.

The catalyst for increasing the reactivity of the above components (B) and (C) is not particularly limited, and generally one or more compounds selected from the compounds that promote the reaction between a carboxylic acid group, a hydroxyl group or an ester group and a glycidyl group. However, preferably, an amine compound such as a tertiary amine or a quaternary ammonium salt, a phosphorus compound such as a phosphonium salt or a phosphine, or an imidazole is used, and these are used alone or Used in combination of more than one species,
0.01 to 1 to 100 parts by weight of the resin composition of the present invention
Used in a proportion of 0 parts by weight.

[0036]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples, and various modifications can be made without departing from the scope of the invention. In the following description, "part"
Unless otherwise specified, “%” means “part by weight” and “% by weight”, respectively.

Reference Example 1: Graft-modified polystyrene resin (C-1) Polystyrene (manufactured by Nippon Steel Chemical Co., Ltd .: Estrene GP
-10 registered trademark) 100 parts, N- [4- (2,3-epoxypropoxy) -3,5-dimethylbenzyl] acrylamide (manufactured by Kaneka Corporation), n-butyl 4,4-bis (T-Butylperoxy) valerate (produced by NOF Corporation: Perhexa V40 registered trademark)
Cylinder temperature 1 after mixing 0.23 parts at room temperature
A twin-screw extruder set at 90 ° C (made by Nippon Steel Co., Ltd .: T
EX44SS (registered trademark) was kneaded and extruded to obtain pellets of the graft-modified polystyrene resin (C-1).
The pellet was dried under reduced pressure at 50 ° C. for 8 hours.

Reference Example 2: Graft-modified polystyrene resin (C-2) 100 parts of styrene-acrylonitrile random copolymer (Japan Synthetic Rubber Co., Ltd .: AS230 registered trademark),
N- [4- (2,3-epoxypropoxy) -3,5-
Dimethylbenzyl] acrylamide (Kanefuchi Chemical Industry Co., Ltd.) 5 parts, n-butyl 4,4-bis (t-butylperoxy) valerate (NOF CORPORATION: Perhexa V40 registered trademark) 0.23 parts at room temperature Was mixed and extruded using a twin-screw extruder (manufactured by Nippon Steel Co., Ltd .: TEX44SS registered trademark) in which the cylinder temperature was set to 190 ° C. to obtain a graft-modified polystyrene resin (C-
The pellet of 2) was obtained. The pellet was dried under reduced pressure at 50 ° C. for 8 hours.

Reference Example 3: Graft-modified polystyrene resin (C-3) 100 parts of styrene-butadiene-acrylonitrile copolymer (manufactured by Asahi Kasei Corporation: Stylak ABS-101 registered trademark), N- [4- (2, 3-epoxypropoxy) -3,5-dimethylbenzyl] acrylamide (manufactured by Kanegafuchi Chemical Industry Co., Ltd.) 3 parts, n-butyl 4,4-bis (t-butylperoxy) valerate (manufactured by NOF Corporation: Perhexa) A mixture of 0.23 parts of V40 (registered trademark) at room temperature is kneaded and extruded using a twin-screw extruder (TEX44SS (registered trademark) manufactured by Nippon Steel Co., Ltd.) set to a cylinder temperature of 190 ° C. to obtain a graft-modified polystyrene resin (C). -3) pellets were obtained. 50 ℃ for pellets
And dried under reduced pressure for 8 hours.

Reference Example 4: Graft-modified polystyrene-based resin (C-4) 100 parts of styrene-isoprene block copolymer (Kuraray Co., Ltd .: Septon 2002 registered trademark), N-
[4- (2,3-epoxypropoxy) -3,5-dimethylbenzyl] acrylamide (manufactured by Kaneka Corporation) 7 parts, n-butyl 4,4-bis (t-butylperoxy) valerate (Japan Yushi Co., Ltd .: Perhexa V
40 registered trademark) 0.20 parts mixed at room temperature
Kneading and extruding were carried out using a twin-screw extruder (TEX44SS registered trademark, manufactured by Nippon Steel Co., Ltd.) set to a cylinder temperature of 190 ° C. to obtain pellets of the graft-modified polystyrene resin (C-4). The pellet was dried under reduced pressure at 50 ° C. for 8 hours.

Examples 1 to 6 Each of the components of the resin composition of the present invention, (A) polyphenylene ether type resin, polystyrene type resin, (B) thermoplastic polyester type resin, and (C) graft modified polystyrene type resin are shown below. The resin composition was manufactured by using the above-mentioned ones in a combination and a mixing ratio of each component shown in Table 1, and a test piece for each characteristic evaluation was prepared.

Component (A) A-1: Polyphenylene ether HPX100L (registered trademark, P manufactured by Mitsubishi Gas Chemical Co., Inc.)
Abbreviated as PE) A-2: Polystyrene-based resin: Hydrogenated styrene-butadiene block copolymer Clayton G1650 (registered trademark) manufactured by Shell Co., Ltd. A-3: Polystyrene-based resin: polystyrene Estrene GP-10 manufactured by Nippon Steel Chemical Co., Ltd. (Registered trademark)

Component (B) B-1: Polybutylene terephthalate Geranex 2002 manufactured by Polyplastics Co., Ltd.
(Registered trademark, abbreviated as PBT)

Component (C) Graft-modified polystyrene resin produced in Reference Examples 1 to 4 (abbreviated as MPS) (C-1 to C-4)

The resin composition and the test piece were manufactured by the following methods. First, the components were dry blended in the proportions shown in Table 1 and then melt-kneaded and pelletized with a 45 mm twin-screw extruder. After vacuum-drying the pellets, injection molding was performed with an injection molding machine to prepare test pieces.

Each characteristic of the resin composition (molded product) of the present invention was evaluated by the following methods. (1) Tensile strength: According to JIS K7113. (2) Gasoline resistance: Tensile strength (JIS K7113) of a test piece immersed in gasoline at 23 ° C for 7 days was measured. (3) Izod impact strength: According to JIS K7110. (4) Deflection temperature under load: According to JIS K7207. (5) Appearance of molded products: ○, △, × according to the following evaluation criteria
It was evaluated in three stages. ◯: Good gloss Δ: Somewhat poor gloss ×: Large surface roughness Table 1 shows the results of the characteristic evaluation.

Comparative Examples 1 to 4 Using the resin components in the proportions shown in Table 1, a resin composition and a test piece were prepared in the same manner as in the example, and the characteristics were evaluated. The characteristic evaluation results are shown in Table 1.

[0048]

[Table 1]

[0049]

As described above, the resin composition according to the present invention has an excellent balance of physical properties such as mechanical properties, oil resistance, heat resistance and moldability.
Provide a molded product suitable as an electric / electronic component or the like.

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Claims (5)

[Claims] 1. A resin composition comprising the following components (A), (B) and (C). (A) Polyphenylene ether-based resin alone, or a mixture of 95 to 5 parts by weight of a mixture thereof and a polystyrene-based resin,
(B) 5 to 95 parts by weight of a thermoplastic polyester resin,
(C) 100 parts by weight of the polystyrene-based resin (a) based on 100 parts by weight of the total amount of the above components (A) and (B),
And (b) the following general formula (I): (Wherein Ar represents a C _{6 to} C ₂₃ aromatic hydrocarbon group having at least one glycidyloxy group, and R represents a hydrogen atom or a methyl group). 1 to 30 parts by weight of graft-modified polystyrene-based resin obtained by reacting 1 to 30 parts by weight in the presence of 0.01 to 10 parts by weight of the radical polymerization initiator (c). 2. The (B) thermoplastic polyester-based resin,
The resin composition according to claim 1, which is polyethylene terephthalate, polybutylene terephthalate, or a mixture thereof. 3. A glycidyl group-containing modifier (b) has the following structural formula (II): The resin composition according to claim 1, represented by: 4. Silica, talc, mica, glass fiber, and 100 parts by weight of the resin composition according to claim 1.
A resin composition comprising 1 to 100 parts by weight of at least one filler selected from the group consisting of neutral clays, carbon fibers, aromatic polyamide fibers, silicon carbide fibers, and titanic acid fibers. 5. Tetrabromobisphenol A, 2,2 based on 100 parts by weight of the resin composition according to claim 1.
-Bis (4-hydroxy3,5-dibromophenyl) propane, hexabromobenzene, tris (2,3-dibromopropyl) isocyanurate, 2,2-bis (4-
Hydroxyethoxy-3,5-dibromophenyl) propane, decabromodiphenyl oxide, brominated polyphosphate, chlorinated polyphosphate, halogenated flame retardants such as chlorinated paraffin; ammonium phosphate, tricresyl phosphate, triethyl Phosphate, Tris chloroethyl phosphate, Tris (B-
Chloroethyl) phosphate, trisdichloropropyl phosphate, cresyl phenyl phosphate,
Phosphorus flame retardants such as xylenyl diphenyl phosphate, acidic phosphoric acid esters, nitrogen-containing phosphorus compounds; red phosphorus, tin oxide, antimony trioxide, zirconium hydroxide, barium metaborate, aluminum hydroxide, magnesium hydroxide, etc. Inorganic flame retardant, brominated polystyrene, brominated poly α-methylstyrene, brominated polycarbonate, brominated polyepoxy resin, chlorinated polyethylene, chlorinated poly α
A resin composition containing 1 to 50 parts by weight of at least one flame retardant selected from the group consisting of polymer flame retardants such as methylstyrene, chlorinated polycarbonate and chlorinated polyepoxy resin.