JP3618480B2 - ABS resin composition with excellent antistatic properties - Google Patents

Description

【００２７】
（ロ）グラフト共重合体（Ｂ）の合成
攪拌機及び冷却機付きの反応容器に窒素気流中で次の物質を仕込んだ。
水 ２５０ 部
ソジウムホルムアルデヒドスルホキシレート ０．２ 部
硫酸第一鉄 ０．００１部
エチレンジアミン四酢酸二ナトリウム ０．００５部
ドデシルベンゼンスルホン酸ナトリウム ２．０ 部
ポリブタジエンゴム（固形分で） ７０ 部
反応缶を攪拌しながら窒素気流下で６０℃まで昇温させた。６０℃に到達後、表２に示す化合物を連続的に４時間で滴下した。
【００２８】
滴下終了後さらに６０℃で１時間攪拌を続け、重合を終了させグラフト共重合体（Ｂ１）、（Ｂ２）を製造した。なお、使用したポリブタジエンは、ガラス転移点Ｔｇが−９０℃、平均粒０．２５μｍ、ゲル含有率９０％でラテックス状のものである。
【００２９】
【表２】

【００３０】
（ハ）ＡＢＳ樹脂の製造
上記の（イ）、（ロ）で得られた共重合体（Ａ）、グラフト共重合体（Ｂ）のラテックスを表３に示すような割合で均一に混合し、フェノール系の抗酸化剤（ＡＯ−２０：旭電化工業株式会社製、０．３部、ＰＥＰ−２４Ｇ：旭電化工業株式会社製、０．３部）を加え、塩化カルシウム溶液で凝固、熱凝集させた後、水洗、脱水、乾燥し、共重合体（Ａ）、グラフト共重合体（Ｂ）の混合したパウダーからなるＡＢＳ樹脂（Ｒ１、Ｒ２、Ｒ３、Ｒ４、Ｒ５）を得た。
【００３１】
【表３】

【００３２】
２．帯電性ＡＢＳ樹脂組成物の製造
前記１．の如く製造した共重合体（Ａ）、グラフト共重合体（Ｂ）の混合パウダーからなるＡＢＳ樹脂（Ｒ１〜Ｒ５）１００重量部と、分子量７５万のポリエチレンオキサイド（Ｃ１）、及びドデカンスルフォン酸ソーダ（Ｄ１）及び亜燐酸誘導体、メタ燐酸誘導体、ピロ燐酸誘導体（Ｅ１〜Ｅ３）を表４で示す割合で計量し、滑剤ＥＢＳ（エチレンビスステアリルアミド）１．０部を加えてスーパーミキサーにてブレンドし、４０ｍ／ｍ押出し機にてペレットを作製した。このペレットから１５０ｔ射出成形機にて、スクリュー回転数１００ｐｒｍ 、ノズル設定温度２６０℃の条件で試験片を成形し、下記の方法で帯電防止性、耐剥離性及び耐熱性を測定した。
【００３３】
帯電防止性は、シシド株式会社製スタティックオネストメーターを使用し、成形後、１週間恒温室に放置した後２．５ｍｍの平板を使い、１０ＫＶの電圧を印加し、帯電半減期を測定した。数値が低いほど、帯電防止性に優れることを示す。
耐成形品剥離性は、１００ｍｍ×１５０ｍｍ×厚み２．５ｍｍの平板成形品のゲート部をカッターにて切れ目を入れて、ピーリングのしやすさを５段階にて評価した。数値が大きいほど耐成形品剥離性に優れる。
耐衝撃性は、ＡＳＴＭ Ｄ−２５６のアイゾット（ＩＺＯＤ）試験にて評価した。
耐熱性は、ＡＳＴＭ Ｄ−６４８の１８．６Ｋｇ／ｃｍ^２ 荷重の熱変形温度で評価した。
【００３４】
【表４】

【００３５】
表４の結果から、実施例に代表される本発明のＡＢＳ樹脂組成物は特に帯電防止性に優れ、且つ、耐成形品剥離性、耐熱性、耐衝撃性も良好なことが明らかである。
【００３６】
【発明の効果】
叙上のとおり、本発明のＡＢＳ樹脂組成物は、特に帯電防止性に優れるとともに、良好な耐成形品剥離性、耐衝撃性、耐熱性をバランス良く備えている。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ABS resin composition having an excellent antistatic ability and having good molded product peelability, mechanical properties, and molding processability.
The ABS resin composition of the present invention is suitable as a molding material for parts in the electric and electronic fields and OA equipment, housings in the home appliance field, interior materials in the automotive field, and the like.
[0002]
[Prior art]
ABS resin (acrylonitrile-butadiene-styrene resin) is excellent in heat resistance, impact resistance, and moldability, and is widely used in machinery, electrical, electronic parts and the like. However, since ABS resin has high electrical insulation, static electricity generated by friction or the like may be a problem.
For example, there is a problem that dust adheres after molding processing and uneven coating is generated during coating, a problem that dust adheres easily when used in a housing, etc. There is a problem that a component malfunctions.
[0003]
In order to prevent the generation of such static electricity, an antistatic agent is applied to the surface of the resin molded product, an antistatic agent is added during resin processing, or a resin having antistatic ability is blended. ing. However, the method of applying an antistatic agent or adding it to a resin has a problem that the antistatic property is easily lost or the mechanical properties of the resin are impaired due to surface cleaning, friction or the like. Therefore, a method of blending a resin having an antistatic ability has attracted attention.
For example, JP-A-3-2252 discloses a method for blending a polymer having a polyether component such as polyalkylene glycol. However, this method is effective for polystyrene resin, but ABS resin does not exhibit a sufficient antistatic effect. It is considered that the polyalkylene glycol is micro-dispersed in the ABS resin as a cause that the antistatic property cannot be obtained with the ABS resin. If the polyalkylene glycol is dispersed in a streak rather than a micro-dispersion, antistatic properties can be obtained, but on the other hand, the compatibility with ABS deteriorates, so that impact resistance cannot be obtained, and the molded product is peeled off. The problem of starting up is included.
[0004]
[Problems to be solved by the invention]
The present invention solves the above problems and provides an ABS resin composition having sufficient antistatic properties without causing peeling of a molded product.
[0005]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have used a vinyl compound having a carboxylic acid only in the graft branch of the graft copolymer in the ABS resin, and further comprises an alkane sulfonate and an alkylbenzene sulfonate. By adding at least one selected from the group and at least one selected from the group consisting of a phosphorous acid derivative, a metaphosphoric acid derivative and a pyrophosphoric acid derivative, high antistatic performance can be achieved without causing peeling of the molded product. It was found that an ABS resin composition having excellent mechanical properties was obtained.
[0006]
That is, the ABS resin composition of the present invention has the following contents.
(A) Aromatic vinyl compound 50-90% by weight, unsaturated nitrile compound 10-40% by weight, alkyl (meth) acrylate compound 0-40% by weight, N-substituted maleimide compound 0-40% by weight, and other 20 to 95 parts by weight of a copolymer comprising 0 to 20% by weight of a vinyl compound having no polymerizable carboxylic acid;
(B) An aromatic vinyl compound (a), an alkyl (meth) acrylate compound (b) represented by the following formula group (I), an unsaturated nitrile compound represented by 30 to 95% by weight of a rubber having a glass transition point Tg ≦ 0 ° C. Graft copolymer 80 obtained by grafting 70 to 5% by weight of a monomer mixture having a composition comprising (c), vinyl compound (d) having carboxylic acid, and other copolymerizable vinyl compound (e). For 100 parts by weight of ABS resin (R) consisting of ˜5 parts by weight,
(C) 6-30 parts by weight of at least one selected from the group consisting of polyalkylene glycols and polyalkylene glycol copolymers,
(D) 0.1-5 parts by weight selected from the group consisting of alkane sulfonates and alkylbenzene sulfonates, and (E) selected from the group consisting of phosphorous acid derivatives, metaphosphoric acid derivatives and pyrophosphoric acid derivatives. An ABS resin composition excellent in antistatic properties comprising at least one kind of 0.1 to 5 parts by weight.
Formula group (I)
15 ≦ (a) ≦ 85, 15 ≦ (b) + (c) ≦ 85,
0.1 ≦ (d) ≦ 60,
(E) = 100- (a)-(b)-(c)-(d),
And 0 ≦ (c) ≦ 40, 0 ≦ (e) ≦ 20
However, (a), (b), (c), (d) and (e) in the formula are respectively an aromatic vinyl compound (a), an alkyl (meth) acrylate compound (b), an unsaturated nitrile compound ( The weight ratio (%) in the monomer mixture of c), the vinyl compound (d) having a carboxylic acid, and another vinyl compound (e) copolymerizable therewith is shown.
[0007]
The ABS resin (R) in the present invention is an aromatic vinyl compound of 50 to 90% by weight, preferably 65 to 85% by weight, an unsaturated nitrile compound of 10 to 40% by weight, preferably 15 to 35% by weight, alkyl (meth). 0 to 40% by weight of acrylate compound, preferably 0 to 30% by weight, 0 to 40% by weight of N-substituted maleimide compound, preferably 0 to 30% by weight, and 0 to 20% by weight of other copolymerizable vinyl compounds, Preferably, the copolymer (A) comprising 0% is 20 to 95 parts by weight, preferably 30 to 85 parts by weight, and rubber having a glass transition point Tg ≦ 0 ° C. of 30 to 95% by weight, preferably 40 to 90% by weight, More preferably 60 to 80% by weight of the aromatic vinyl compound (a) represented by the above formula group (I), the alkyl (meth) acrylate compound (b), the unsaturated nitrile compound (c), Monomer mixture of 70 to 5% by weight, preferably 60 to 10% by weight, more preferably 40 to 20% by weight of a composition comprising a vinyl compound (d) having rubonic acid and another copolymerizable vinyl compound (e) % Is a composition comprising 80 to 5 parts by weight, preferably 70 to 15 parts by weight of the graft copolymer (B).
It is preferable that the ABS resin (R) is in the above range from the viewpoint of antistatic properties, molded product peelability, heat resistance, impact resistance, and workability.
[0008]
Examples of the aromatic vinyl compound in the copolymer (A) and the graft copolymer (B) include styrene, α-methylstyrene, methylstyrene, P-methylstyrene, chlorostyrene, and the like. Acrylonitrile, methacrylonitrile and the like can be mentioned, and as alkyl (meth) acrylate, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, glycidyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-ethylhexyl (meth) acrylate etc. are mentioned, These are used individually or in combination of 2 or more types.
Other copolymerizable vinyl compounds include those having no carboxylic acid such as vinyl acetate, vinyl propionate, methyl vinyl ether, ethyl vinyl ether, ethylene, and isobutene. As other copolymerizable vinyl compounds of the graft copolymer (B), the following N-substituted maleimide compounds are further exemplified. These may be used alone or in combination of two or more.
[0009]
Examples of the N-substituted maleimide compound of the copolymer (A) include N-phenylmaleimide, N-methylmaleimide, N-ethylmaleimide, N-propylmaleimide, N-isopropylmaleimide, N-butylmaleimide, N-isobutylmaleimide, N-tertiary butyl maleimide, N-cyclohexyl maleimide, etc. are mentioned, These are used individually or in combination of 2 or more types.
[0010]
The copolymer (A) has a reduced viscosity of the methyl ethyl ketone soluble part in a dimethylformamide solution at 30 ° C., preferably 0.20 to 1.20 dl / g, more preferably 0.35 to 1.00 dl / g. A range of copolymers. When the reduced viscosity is less than 0.20 dl / g, the impact strength is lowered, and when it exceeds 1.20 dl / g, the workability tends to be lowered.
[0011]
Examples of the vinyl compound (d) having a carboxylic acid of the graft copolymer (B) include vinyl monomers having a carboxylic acid such as acrylic acid, methacrylic acid, itaconic acid, maleic acid and phthalic acid. Also included are vinyl monomers having a highly reactive carboxyl anhydride group, such as maleic anhydride. These may be used alone or in combination of two or more.
[0012]
Examples of the rubber polymer in the graft copolymer (B) include polybutadiene rubber, styrene-butadiene copolymer rubber (SBR), diene rubber such as acrylonitrile-butadiene rubber (NBR), and acrylic such as polybutyl acrylate. And rubbers such as ethylene-propylene-diene terpolymer rubber (EPDM) are used, and these are used alone or in combination of two or more.
[0013]
The ABS resin (R) in the present invention is, in particular, (A) styrene and / or α-methylstyrene 50 to 90% by weight, acrylonitrile 10 to 40% by weight, methyl methacrylate 0 to 40% by weight, N-phenylmaleimide 0 to 20 to 95 parts by weight of a copolymer composed of 40% by weight, (B) 30 to 95% by weight of butadiene rubber, styrene and / or α-methylstyrene (a), methyl methacrylate (b), acrylonitrile (c) Graft copolymer 80 to 5 wt% obtained by grafting 70 to 5 wt% of a monomer mixture having a composition consisting of methacrylic acid and / or acrylic acid (d) and other copolymerizable vinyl compound (e) What consists of a part is preferable.
[0014]
In the ABS resin composition of the present invention, a copolymer of a vinyl compound having an ungrafted carboxylic acid in the graft copolymer (B) is preferably 50% by weight or less, preferably 30% by weight in the graft copolymer. Hereinafter, it is more preferably 20% by weight or less from the viewpoint of antistatic properties.
[0015]
Examples of the component (C) polyalkylene glycol and polyalkylene glycol copolymer of the present invention include polyethylene glycol, polypropylene glycol, polytetramethylene glycol, ethylene oxide-propylene oxide copolymer, ethylene oxide-epichlorohydrin copolymer. These are used alone or in combination of two or more. In particular, polyethylene glycol having a molecular weight of 10,000 to 2,000,000 is preferable. When the molecular weight is out of the above range, impact strength tends to decrease or moldability tends to decrease.
[0016]
Component (C) is a composition comprising 6 to 30 parts by weight, preferably 7 to 25 parts by weight, per 100 parts by weight of the ABS resin (R). If it is less than 6 parts by weight, the antistatic effect is not sufficiently exhibited, and if it exceeds 30 parts by weight, the impact strength is significantly reduced.
[0017]
The alkane sulfonate and the alkane or alkyl of the alkylbenzene sulfonate which are the component (D) of the present invention are not particularly limited in the number of carbons, but preferably have 6 to 29 carbons, more preferably 8 to 18 carbons. The number of sulfonic acid groups per molecule is not particularly limited, but the number of sulfonic acid groups is preferably 1 to 3. If the number of carbon atoms and the number of sulfonic acid groups are out of the above ranges, the impact strength tends to decrease or the antistatic ability tends to decrease. Examples of the salt include sodium, potassium, lithium, calcium, magnesium and the like, and sodium and potassium are particularly preferable. These may be used alone or in combination of two or more.
[0018]
Component (D) is 0.1 to 5 parts by weight, preferably 0.5 to 4 parts by weight, based on 100 parts by weight of ABS resin (R). If it is less than 0.1 part by weight, the effect of improving the antistatic property is not sufficient, and if it exceeds 5 parts by weight, the mechanical properties are lowered.
[0019]
Examples of the phosphorous acid derivative, metaphosphoric acid derivative, and pyrophosphoric acid derivative that are components (E) of the present invention include H ₃ PO ₃ , Na ₂ PHO ₃ , NaHPHO ₃ , K ₂ PHO ₃ , KHPHO ₃ , (NH ₄ ) ₂ PHO ₃ , (NH ₄ ) HPHO ₃ , CaHO ₃ , CaH ₂ (PHO ₃ ) ₂ , MgPH ₃ , MgH ₂ (PHO ₃ ) ₂ , HPO ₃ , (NaPO ₃ ) _n , (KPO ₃ ) _n , H ₄ P ₂ O ₇ , Na ₄ P ₂ O ₇ , Na ₂ H ₂ P ₂ O ₇ , K ₄ P ₂ O ₇ , K ₂ H ₂ P ₂ O ₇ , Ca ₂ P ₂ O ₇ , Mg ₂ P ₂ O ₇ , ( NH _{4) 4} P ₂ O ₇ and the like, which may be used alone or in combination of two or more. Although a salt containing crystal water can be used, it is preferable to remove the crystal water by heating before use. In particular, H ₃ PO ₃ , (NaPO ₃ ) _n , (KPO ₃ ) _n , Na ₄ P ₂ O ₇ , and K ₄ P ₂ O ₇ are preferable from the physical properties and cost.
[0020]
Component (E) is 0.1 to 5 parts by weight, preferably 0.3 to 3 parts by weight, per 100 parts by weight of ABS resin (R). If it is less than 0.1 part by weight, the effect of improving the antistatic property is not sufficient, and if it exceeds 5 parts by weight, the mechanical properties are lowered.
[0021]
In the present invention, the copolymer (A) and the graft copolymer (B) of the ABS resin (R) are obtained by emulsion polymerization, solution polymerization, bulk polymerization, and the like. Further, the ABS resin composition of the present invention comprises at least one (C) selected from the group consisting of a copolymer (A), a graft copolymer (B), a polyalkylene glycol and a polyalkylene glycol-based polymer, alkanesulfone. At least one selected from the group consisting of acid salts and alkylbenzene sulfonates (D), at least one selected from the group consisting of phosphorous acid derivatives, metaphosphoric acid derivatives and pyrophosphoric acid derivatives (E) with an extruder, kneader, etc. It can be melt-kneaded and manufactured.
[0022]
Copolymer (A) and graft copolymer (B) are mixed in a latex or slurry state, or the polymerization of copolymer (A) and graft copolymer (B) is divided into two stages for continuous polymerization. Thus, a mixed powder or pellet of the copolymer (A) and the graft copolymer (B) is obtained, and the use of these is particularly preferable from the viewpoint of mechanical properties.
The ABS resin (R) of the present invention can further contain an ABS resin or AS resin that is not modified with carboxylic acid, and the ABS resin composition of the present invention can also be obtained using these ABS resins.
[0023]
The ABS resin composition of the present invention can be used not only for well-known antioxidants, heat stabilizers and lubricants, but also UV absorbers, pigments, other antistatic agents, and flame retardants and flame retardant aids as necessary. The agents can be used alone or in combination of two or more. In particular, phenolic antioxidants used in ABS resins, phosphite stabilizers, hindered amine stabilizers, benzophenone, benzotriazole ultraviolet absorbers and fatty acid esters, hydrocarbon waxes, fatty acid amides, fatty acid diamides, etc. Inner and outer lubricants and the like can be used to make the ABS resin composition of the present invention have higher performance as a molding resin. Furthermore, to improve mechanical properties such as elastic modulus and heat resistance, reinforcing fibers such as glass fiber and carbon fiber, and fillers such as mica, talc, clay, and glass beads are used alone or in combination of two or more. You can also
[0024]
【Example】
EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on a specific Example, these Examples do not limit this invention at all. In the following description, “parts” represents parts by weight, and “%” represents% by weight.
In the following description, each abbreviation represents the following substance.
αMSt: α-methylstyrene St: styrene AN: acrylonitrile PMI: phenylmaleimide MAA: methacrylic acid MEK: methyl ethyl ketone tDM: t-dodecyl mercaptan CHP: cumene hydroxy peroxide
Examples 1-5, Comparative Examples 1-5
1. Synthesis of ABS resin (R) (a) Synthesis of copolymer (A) The following substances were charged in a nitrogen stream in a reaction vessel equipped with a stirrer and a cooler.
Water 250 parts Sodium formaldehyde sulfoxylate 0.5 parts Ferrous sulfate 0.003 parts Disodium ethylenediaminetetraacetate 0.01 parts Sodium dodecylbenzenesulfonate 2.0 parts 60 parts under stirring and stirring under nitrogen stream The temperature was raised to ° C. After reaching 60 ° C., the vinyl monomer mixture in the amount shown in Table 1 was continuously added dropwise over 6 hours. After completion of the dropwise addition, the mixture was further stirred at 60 ° C. for 1 hour to complete the polymerization, thereby producing copolymers (A1, A2, A3, A4).
[0026]
[Table 1]

[0027]
(B) Synthesis of graft copolymer (B) The following substances were charged into a reaction vessel equipped with a stirrer and a cooler in a nitrogen stream.
Water 250 parts Sodium formaldehyde sulfoxylate 0.2 parts Ferrous sulfate 0.001 part Disodium ethylenediaminetetraacetate 0.005 parts Sodium dodecylbenzenesulfonate 2.0 parts Polybutadiene rubber (in solid content) 70 parts Reactor The temperature was raised to 60 ° C. under a nitrogen stream while stirring. After reaching 60 ° C., the compounds shown in Table 2 were continuously added dropwise over 4 hours.
[0028]
After completion of the dropwise addition, stirring was further continued at 60 ° C. for 1 hour to complete the polymerization and produce graft copolymers (B1) and (B2). The polybutadiene used is a latex having a glass transition point Tg of −90 ° C., an average particle size of 0.25 μm, and a gel content of 90%.
[0029]
[Table 2]

[0030]
(C) Production of ABS resin The latexes of the copolymer (A) and graft copolymer (B) obtained in (a) and (b) above were uniformly mixed at a ratio as shown in Table 3, Add phenolic antioxidant (AO-20: Asahi Denka Kogyo Co., Ltd., 0.3 parts, PEP-24G: Asahi Denka Kogyo Co., Ltd., 0.3 parts), coagulate with calcium chloride solution, and heat agglomerate Then, it was washed with water, dehydrated, and dried to obtain ABS resin (R1, R2, R3, R4, R5) made of powder mixed with copolymer (A) and graft copolymer (B).
[0031]
[Table 3]

[0032]
2. Production of chargeable ABS resin composition 100 parts by weight of ABS resin (R1 to R5) composed of mixed powder of copolymer (A) and graft copolymer (B), polyethylene oxide (C1) having a molecular weight of 750,000, and sodium dodecanesulfonate (D1) and phosphorous acid derivative, metaphosphoric acid derivative, pyrophosphoric acid derivative (E1 to E3) are weighed in the proportions shown in Table 4, and 1.0 part of lubricant EBS (ethylene bisstearylamide) is added and blended with a super mixer. Then, pellets were produced with a 40 m / m extruder. Test pieces were molded from the pellets with a 150 t injection molding machine under the conditions of a screw rotation speed of 100 prm and a nozzle set temperature of 260 ° C., and the antistatic property, peel resistance and heat resistance were measured by the following methods.
[0033]
The antistatic property was measured by using a static Honest meter manufactured by Sicid Co., Ltd., and after standing for 1 week in a constant temperature room, using a 2.5 mm flat plate, applying a voltage of 10 KV, and measuring the charging half-life. It shows that it is excellent in antistatic property, so that a numerical value is low.
The peelability of the molded product was evaluated in five stages by using a cutter to cut a gate portion of a flat molded product having a size of 100 mm × 150 mm × 2.5 mm in thickness with a cutter. The larger the value, the better the molded product peelability.
Impact resistance was evaluated by the ASTM D-256 Izod (IZOD) test.
The heat resistance was evaluated by a heat deformation temperature of 18.6 kg / cm ² load of ASTM D-648.
[0034]
[Table 4]

[0035]
From the results shown in Table 4, it is clear that the ABS resin compositions of the present invention represented by the examples are particularly excellent in antistatic properties, and have good molded product peelability, heat resistance and impact resistance.
[0036]
【The invention's effect】
As described above, the ABS resin composition of the present invention is particularly excellent in antistatic property and has a good balance of molded product release resistance, impact resistance, and heat resistance.

Claims (5)

(A) Aromatic vinyl compound 50-90% by weight, unsaturated nitrile compound 10-40% by weight, alkyl (meth) acrylate compound 0-40% by weight, N-substituted maleimide compound 0-40% by weight, and other 20 to 95 parts by weight of a copolymer comprising 0 to 20% by weight of a vinyl compound having no polymerizable carboxylic acid;
(B) An aromatic vinyl compound (a), an alkyl (meth) acrylate compound (b) represented by the following formula group (I), an unsaturated nitrile compound represented by 30 to 95% by weight of a rubber having a glass transition point Tg ≦ 0 ° C. Graft copolymer 80 obtained by grafting 70 to 5% by weight of a monomer mixture having a composition comprising (c), vinyl compound (d) having carboxylic acid, and other copolymerizable vinyl compound (e). For 100 parts by weight of ABS resin (R) consisting of ˜5 parts by weight,
(C) 6-30 parts by weight of at least one selected from the group consisting of polyalkylene glycols and polyalkylene glycol copolymers,
(D) 0.1-5 parts by weight selected from the group consisting of alkane sulfonates and alkylbenzene sulfonates, and (E) selected from the group consisting of phosphorous acid derivatives, metaphosphoric acid derivatives and pyrophosphoric acid derivatives. An ABS resin composition excellent in antistatic properties, comprising at least one kind of 0.1 to 5 parts by weight.
Formula group (I)
15 ≦ (a) ≦ 85, 15 ≦ (b) + (c) ≦ 85,
0.1 ≦ (d) ≦ 60,
(E) = 100- (a)-(b)-(c)-(d),
And 0 ≦ (c) ≦ 40, 0 ≦ (e) ≦ 20
However, (a), (b), (c), (d) and (e) in the formula are respectively an aromatic vinyl compound (a), an alkyl (meth) acrylate compound (b), an unsaturated nitrile compound ( The weight ratio (%) in the monomer mixture of c), the vinyl compound (d) having a carboxylic acid, and another vinyl compound (e) copolymerizable therewith is shown. The ABS resin composition according to claim 1, wherein the component (C) is polyethylene glycol. Component (D) is an alkane sulfonate sodium having 8 to 18 carbon atoms, potassium alkane sulfonate having 8 to 18 carbon atoms, or sodium alkylbenzene sulfonate having 8 to 18 carbon atoms, or alkyl benzen sulfonic acid having 8 to 18 carbon atoms. The ABS resin composition according to claim 1, which is potassium. The ABS resin composition according to claim 1, 2 or 3, wherein component (E) is phosphorous acid, sodium metaphosphate, potassium metaphosphate, sodium pyrophosphate, or potassium pyrophosphate. The component (R) comprises (A) styrene and / or α-methylstyrene 50 to 90% by weight, acrylonitrile 10 to 40% by weight, methyl methacrylate 0 to 40% by weight, and N-phenylmaleimide 0 to 40% by weight. 20 to 95 parts by weight of the polymer, (B) 30 to 95% by weight of butadiene rubber, styrene and / or α-methylstyrene (a), methyl methacrylate (b), acrylonitrile (c), methacrylic acid and / or A graft copolymer comprising 80 to 5 parts by weight obtained by grafting 70 to 5% by weight of a monomer mixture having a composition comprising acrylic acid (d) and another copolymerizable vinyl compound (e). The ABS resin composition according to any one of 1 to 4.