JP2015071669A - Antistatic agent composition, masterbatch containing the same, and synthetic resin fiber containing the antistatic agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antistatic agent composition which can provide, by a simple method, a synthetic resin fiber having good antistatic performance.SOLUTION: The antistatic agent composition comprises wax (A), a vinyl (co)polymer (B), and an aliphatic hydrocarbon (C) having 5 to 14 carbon atoms. The (A) is at least one selected from (a1) paraffin wax, (a2) microcrystalline wax, (a3) Fischer-Tropsch wax, and (a4) polyethylene wax. The component (B) can be obtained by radically polymerizing at least one selected from (b1) acrylonitrile, (b2) (meth)acrylic acid, (b3) hydroxyethyl (meth)acrylate or hydroxypropyl (meth)acrylate, (b4) styrene and (b5) predetermined alkyl (meth)acrylates. The (A) is contained in an amount of 50 to 98 pts.mass relative to (A)+(B)=100 pts.mass, and (C) is contained in an amount of 0.001 to 1 mass% relative to a total amount of the (A).

Description

  The present invention relates to an antistatic agent composition, a masterbatch containing the antistatic agent composition, a synthetic resin fiber containing the antistatic agent composition, and the like.

  Conventionally, synthetic resin fibers made of polyester resin, polyamide resin, and the like have been used in a wide range of fields such as clothing, miscellaneous goods, and other fabric products for reasons such as physical, chemical, and economic excellence. However, synthetic resin fibers are more likely to be charged with static electricity compared to natural fibers, so they are attached to the body, dust is likely to adhere to them, and crackling noises are felt when undressing. Have

  Therefore, in recent years, a technique for imparting antistatic performance to synthetic resin fibers has been developed to solve the above problems. For example, Patent Document 1 uses an antistatic fiber made of a thermoplastic elastomer made of a polyether block amide copolymer having a specific structure, together with a conventionally used fiber when manufacturing a garment. ing. Further, in Patent Document 2, a polyester fiber molded article is immersed in an aqueous emulsion dispersion containing a hydrophobic radical initiator, a phthalimide compound, an alkylene glycol and an ethylenically unsaturated organic acid, heat-treated, and graft polymerization is performed. After processing, with an aqueous solution containing a basic alkali metal compound, 40% to 95% of the total amount of terminal carboxylic acid introduced by graft polymerization is alkali metalized to modify the polyester fiber molded article. Yes.

JP 2007-291558 A JP 2000-226765 A

  However, in Patent Document 1, since an antistatic fiber is separately manufactured and mixed with a general fiber, it takes time and effort to manufacture clothing and the like. On the other hand, in Patent Document 2, a general synthetic resin fiber (having no antistatic performance) is once manufactured and then the synthetic resin fiber is subjected to a modification treatment, and the modification treatment is also complicated. Therefore, it takes time and labor to manufacture the antistatic fiber.

  Accordingly, the present invention solves the above-mentioned problems, and an antistatic agent composition capable of obtaining a synthetic resin fiber having good antistatic performance by a simple method, a masterbatch containing the composition, and the antistatic agent It aims at providing the synthetic resin fiber containing a composition.

As means for that, the present invention adopts the following means.
(1) a wax (A), a vinyl (co) polymer (B), and an aliphatic hydrocarbon (C) having 5 to 14 carbon atoms, wherein the component (A) is (a1) a paraffin wax, (A2) microcrystalline wax, (a3) Fischer-Tropsch wax, and (a4) at least one wax selected from polyethylene wax, wherein the component (B) is (b1) acrylonitrile, (b2) (meta ) Acrylic acid, (b3) hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate, (b4) styrene, and (b5) (meth) acrylic acid alkyl esters represented by the following formula (1) A (co) polymer obtained by radical polymerization of at least one vinyl monomer selected from the group consisting of the component (A) + component (B = The content ratio of the component (A) is 50 to 98 parts by mass with respect to 100 parts by mass, and 0.001 to 1% by mass of the component (C) with respect to the total amount of the component (A) An antistatic agent composition.
(2) The vinyl (co) polymer (B) is (b1) acrylonitrile, (b2) (meth) acrylic acid, and (b3) hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate. The antistatic agent composition according to (1), which is a (co) polymer obtained by radical polymerization of at least one vinyl monomer selected from:
(3) The vinyl (co) polymer (B) is (b6) a monomer having a polyorganosiloxane group in one molecule and a vinyl group at least at one end, and the vinyl monomer ( a copolymer obtained by radical polymerization of at least one vinyl monomer selected from b1) to (b5), wherein the content ratio of the monomer (b6) is the vinyl (copolymer). ) The antistatic agent composition according to (1) or (2), which is 1 to 30% by mass based on the total amount of the polymer (B).
(4) An antistatic agent-containing masterbatch containing 0.1 to 50% by mass of the antistatic agent composition according to any one of (1) to (3).
(5) The antistatic agent-containing masterbatch according to (4), wherein the base resin is a polyester resin or a polyamide resin and is used for producing a polyester fiber or a polyamide fiber.
(6) The antistatic agent composition according to any one of (1) to (3) and / or the antistatic agent-containing masterbatch according to (4) or (5), wherein the antistatic agent content is Synthetic resin fibers obtained by melt spinning a composition blended to 0.01 to 5% by mass.
(7) A fiber product comprising the synthetic resin fiber according to (6).

  In the present invention, “XX to XX” indicating a numerical range means “XX or more and XX or less” unless otherwise specified. In addition, the “wax (A)” in the present invention is a concept that includes a “wax mixture” that slightly contains the component (C) as a subcomponent. The “(co) polymer” is a concept including a polymer composed of a single vinyl monomer and a copolymer composed of two or more kinds of vinyl monomers. “(Meth) acrylic acid” is a concept including both methacrylic acid and acrylic acid.

  According to the antistatic agent composition of the present invention, the antistatic performance can be easily imparted to the synthetic resin fiber only by adding it when producing the synthetic resin fiber. In general, when this type of additive is added to a synthetic resin, the texture and surface smoothness of the resulting synthetic resin fiber tend to decrease. However, according to the antistatic agent composition of the present invention, synthesis Good antistatic performance can be imparted without deteriorating the physical properties of the resin fiber. In particular, the component (C) has a function of further improving the lubricity of the wax (A), whereby the smoothness of the surface of the synthetic resin fiber can be improved. Further, since the component (b6) has surface orientation and lubricity, if the component (b6) is also contained, the antistatic agent composition is finely dispersed on the surface of the synthetic resin fiber, and the synthetic resin The smoothness of the fiber surface can be further improved.

  In addition, when the antistatic agent composition is used as a master batch, the handling property of the antistatic agent is improved and the final amount of the antistatic agent added to the synthetic resin fiber can be easily adjusted.

  In addition, the synthetic resin fiber of the present invention is mixed with a plurality of types of fibers because only an antistatic composition or a masterbatch containing the antistatic composition at a high concentration is added when melt spinning the same. There is no need or modification after that, and it can be easily produced.

Hereinafter, the present invention will be described in detail.
≪Antistatic agent composition≫
The antistatic agent composition of the present invention comprises a wax (A), a vinyl (co) polymer (B), and an aliphatic hydrocarbon (C) having 5 to 14 carbon atoms.

<Wax (A)>
Wax is a compound that can exhibit properties such as low friction, and mainly has a function of improving the surface smoothness of synthetic resin fibers. As the wax, a hydrocarbon component having 20 to 80 carbon atoms that is solid at 25 ° C. and 1 atm can be used. Specifically, among (a1) paraffin wax and (a2) microcrystalline wax refined from petroleum, (a3) Fischer-Tropsch wax synthesized from natural gas, and (a4) polyethylene wax synthesized from ethylene At least one selected, or two or more can be used.

  Note that (a1) paraffin wax, (a2) microcrystalline wax, and (a3) Fischer-Tropsch wax are wax mixtures containing these wax components as a main component, and some of the components (C) described below as subcomponents. (About 0.01 to 0.1% by mass). On the other hand, the (a4) polyethylene wax is a pure wax and consists only of the polyethylene wax.

<Vinyl (co) polymer (B)>
The vinyl (co) polymer has a function of compatibilizing the wax (A) and the synthetic resin fiber and finely dispersing the wax (A) in the synthetic resin fiber. The vinyl (co) polymer includes (b1) acrylonitrile, (b2) (meth) acrylic acid, (b3) hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate, (b4) styrene, and (b5 ) A (co) polymer obtained by radical polymerization of at least one or two or more vinyl monomers selected from (meth) acrylic acid alkyl esters represented by the following formula (1). And (b1) acrylonitrile, (b2) (meth) acrylic acid, and (b3) at least one vinyl monomer selected from hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate. By using a (co) polymer obtained by radical polymerization, the compatibilizing effect is enhanced, and the wax (A) can be finely dispersed in the synthetic resin fiber, thereby further improving the antistatic effect. You can also.

  Further, together with at least one selected from the vinyl monomers (b1) to (b5), (b6) a monomer having a polyorganosiloxane group in one molecule and having a vinyl group at least at one end It is preferable to use a copolymer obtained by radical polymerization. Such a vinyl monomer (b6) has a polyorganosiloxane group, so that the surface orientation of the vinyl (co) polymer (B) can be remarkably improved. Therefore, since the wax (A) compatibilized by the vinyl (co) polymer (B) is also oriented on the surface of the synthetic resin fiber, the lubricity of the surface of the synthetic resin fiber can be improved. Furthermore, since the polyorganosiloxane itself has lubricity, the vinyl (co) polymer (B) copolymerized with the vinyl monomer (b6) is imparted with lubricity, and therefore synthesized. The smoothness of the resin fiber surface can be remarkably improved.

  As the vinyl monomer (b6), for example, product names of Shin-Etsu Chemical Co., Ltd .: X-22-164, X-22-164AS, X-22-164A, X-22-164B, X-22-164C , X-22-164E, X-22-2445, X-22-1602, X-22-174ASX, X-22-174BX, X-22-2426, X-22-2475, KF-2012, JNC (stock) Product name: Silaplane FM-0711, Silaplane FM-0721, Silaplane FM-0725, and the like. Among them, X-22-174ASX, X-22-174BX, X-22-2426, X-22-2475, KF-2012, Silaplane FM-0711, Silaplane FM-, in which only one end is modified with (meth) acrylic 0721, Silaplane FM-0725 are preferred. These vinyl monomers (b6) may be used alone or in combination of two or more.

<Radical polymerization initiator>
The vinyl monomer is radically polymerized by a radical polymerization initiator. As the radical polymerization initiator, an azo polymerization initiator, an organic peroxide, a persulfate, a hydrogen peroxide solution, a redox polymerization initiator (a polymerization initiator combining an oxidizing agent and a reducing agent), or the like can be used.

  Examples of the azo polymerization initiator include azobisisobutyronitrile, azobisisovaleronitrile, azobisdimethylvaleronitrile, azobis (4-methoxy-2,4-dimethylvaleronitrile), 1-phenylethylazodiphenylmethane, and the like. Is mentioned.

  Examples of the organic peroxide include peroxyketals such as 1,1-di (t-hexylperoxy) -3,3,5-trimethylcyclohexane, 1,1-di (t-hexylperoxy) cyclohexane, Hydroperoxides such as p-menthane hydroperoxide, diisopropylbenzene hydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, cumene hydroperoxide, t-butyl hydroperoxide, di (3, And diacyl peroxides such as 5,5-trimethylhexanoyl) peroxide and dibenzoyl peroxide, and peroxyesters such as cumyl peroxyl neodecanoate and t-butyl peroxyl neodecanoate.

  As the oxidizing agent used for the redox polymerization initiator, hydroperoxides or persulfates can be used. Examples of hydroperoxides include cumene hydroperoxide, t-butyl hydroperoxide, diisopropylbenzene hydroperoxide, p-menthane hydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, and the like. It is done. Examples of the persulfate include potassium persulfate and ammonium persulfate. Examples of the reducing agent include glucose, dextrose, formaldehyde sodium sulfoxylate (Longalite), sodium thiosulfate, ferrous sulfate, copper sulfate, and potassium hexacyanoiron (III).

  Among the radical polymerization initiators exemplified above, di (3,5,5-trimethylhexanoyl) peroxide or potassium persulfate is preferred because of easy handling and easy control of the polymerization reaction.

<Method for producing vinyl (co) polymer (B)>
The vinyl (co) polymer can be synthesized by a known suspension polymerization method or emulsion polymerization method using a radical polymerization initiator. At this time, when the monomer (b6) is used together with at least one selected from the vinyl monomers (b1) to (b5), the total amount of the vinyl (co) polymer (B) (100 Based on (mass%), the monomer (b6) content is blended so as to be 1 to 30 mass%. When the blending ratio (content) of the monomer (b6) is out of this range, the surface physical properties of the resultant synthetic resin fiber are lowered.

  Further, the blending amount (content) of the radical polymerization initiator is preferably 0.001 to 10 parts by mass, more preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the total amount of each monomer. . When the content of the radical polymerization initiator is less than 0.001 part by mass, it is not preferable because not only a long-time reaction is required to complete the polymerization but also the reaction is not completed. On the other hand, when it exceeds 10 parts by mass, the heat generation becomes large, and it tends to be difficult to control the polymerization reaction.

  When synthesizing by an emulsion polymerization method, a surfactant is also mixed with each monomer. As the surfactant used in the emulsion polymerization, known nonionic, anionic or cationic surfactants can be used. In the case where the polymer is taken out by salting out, an anionic surfactant is preferable. Examples of the anionic surfactant include fatty acid salts, sodium alkylbenzene sulfonate, alkyl naphthalene sulfonates, dialkyl sulfosuccinate esters, alkyl phosphate esters, naphthalene sulfonate formalin condensates, polyoxyethylene alkyl sulfates, etc. Is mentioned. These surfactants may be blended at a ratio of about 0.1 to 10 parts by mass, preferably 1 to 5 parts by mass with respect to 100 parts by mass of the total amount of monomers (b1) and (b2).

  In the emulsion polymerization, a known pH adjusting agent, chelating agent, polymerization adjusting agent, polymerization stabilizer and the like can be added as necessary. For example, pH regulators such as sodium hydroxide, potassium hydroxide, ammonium hydroxide, sodium bicarbonate, sodium carbonate, disodium hydrogen phosphate, chelating agents such as sodium ethylenediaminetetraacetate, sodium pyrophosphate, inorganic electrolytes, organic electrolytes , A viscosity modifier made of a polymer electrolyte, or a polymerization stabilizer. Furthermore, in order to control the degree of polymerization, a known crosslinking agent, chain transfer agent, polymerization inhibitor and the like can be added.

  After the polymerization is completed, the emulsion obtained by emulsion polymerization is exemplified by acids such as hydrochloric acid, sulfuric acid, and nitric acid, and electrolytes such as sodium chloride, potassium chloride, sodium sulfate, calcium chloride, magnesium sulfate, copper sulfate, and calcium nitrate. After salting out using, a (co) polymer is obtained by filtration and drying.

  Moreover, when synthesize | combining by suspension polymerization method, a dispersing agent is also mixed with each monomer. Examples of the dispersant include inorganic compounds such as tricalcium phosphate, magnesium phosphate, aluminum phosphate, zinc phosphate, calcium carbonate, magnesium carbonate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, calcium metasilicate, sulfuric acid. Examples thereof include calcium, barium sulfate, bentonite, silica, alumina, a magnetic material, and ferrite. Examples of the organic compound include polyvinyl alcohol, gelatin, methyl cellulose, methyl hydroxypropyl cellulose, ethyl cellulose, sodium salt of carboxymethyl cellulose, starch and the like. The amount of the dispersing agent may be about 0.01 to 10 parts by mass, preferably about 0.01 to 5 parts by mass with respect to 100 parts by mass of each monomer. And after suspension polymerization is completed, a (co) polymer is obtained by filtering and drying.

  The number average molecular weight (Mn) of the vinyl (co) polymer (B) synthesized by radical polymerization of each monomer is usually 1,000 to 6,000,000, preferably 1,000 to 4,000,000. 000. If the number average molecular weight is less than 1,000, the heat resistance of the vinyl (co) polymer tends to decrease, and if the number average molecular weight exceeds 6,000,000, the vinyl (co) polymer is melted. When the fluidity is deteriorated, the moldability tends to be lowered.

  Therefore, it is also preferable to add a molecular weight modifier to the antistatic agent composition as necessary. Examples of the molecular weight modifier include alkyl mercaptans such as N-dodecyl mercaptan and phenyl mercaptan, α-methylstyrene dimer, alkyl halides such as carbon tetrachloride, alcohols such as isopropyl alcohol, and the like.

<C5-C14 aliphatic hydrocarbon (C)>
The aliphatic hydrocarbon (C) having 5 to 14 carbon atoms is a hydrocarbon component which is liquid at 25 ° C. and 1 atm, and has a function of further improving the lubricity of the wax (A). Specific examples of the aliphatic hydrocarbon having 5 to 14 carbon atoms include pentane, isopentane, hexane, isohexane, heptane, octane, nonane, decane, undecane, dodecane, tridecane, and tetradecane.

  Content of a component (C) shall be 0.001-1 mass% with respect to the whole quantity of a wax (mixture) (A). If it is out of this range, the surface physical properties of the resulting synthetic resin fiber will decrease.

  The antistatic agent composition of the present invention can be obtained by mixing the wax (A) and the vinyl (co) polymer (B) at a temperature equal to or higher than the melting point of the wax (A). At this time, the vinyl (co) polymer (B) may be produced and then mixed with the wax (A), or the wax (A) and the monomers (b1) to (b6) in the same container. And the vinyl (co) polymer (B) may be produced in the presence of the wax (A). The antistatic agent composition of the present invention is in the form of a graft copolymer and / or a block copolymer in which the wax (A) and the vinyl (co) polymer (B) are bonded by a covalent bond. May be. In this graft copolymer and / or block copolymer, the wax (A) and the monomers (b1) to (b6) are introduced into the same container, and vinyl in the presence of the wax (A). It can be obtained by producing the (co) polymer (B).

  The blending ratio (content) of the wax (A) and the vinyl (co) polymer (B) is 50 to 98 parts by weight of wax (A) in 100 parts by weight of (A) + (B) (in other words, For example, the vinyl (co) polymer (B) is 50 to 2 parts by mass). When the amount of the wax (A) is less than 50 parts by mass, the amount of lubricant is reduced, so that the surface smoothness of the resulting synthetic resin fiber is lowered.

≪Master batch≫
The antistatic agent composition may be added directly to the synthetic resin composition when the synthetic resin fiber is produced, but is added after making the antistatic agent composition a high-concentration master batch. You can also The base resin (binder resin) of the masterbatch is the same as the desired synthetic resin fiber material. This is because if a base resin different from the resin of the synthetic resin fiber is used, the physical properties of the synthetic resin fiber may be lowered. For example, when manufacturing the fiber made from a polyester resin, the base resin of a masterbatch is also made into a polyester resin. Moreover, when manufacturing the fiber made from a polyamide resin, the base resin of a masterbatch shall also be a polyamide resin. When setting it as a masterbatch, content of an antistatic agent composition should just be 0.1-50 mass%.

≪Synthetic resin fiber≫
The synthetic resin fiber of the present invention comprises a thermoplastic resin such as a polyester resin or a polyamide resin, and is obtained by melt spinning. At this time, a synthetic resin fiber having antistatic performance can be obtained by adding an appropriate amount of the antistatic agent composition or masterbatch. By weaving the obtained synthetic resin fiber by a known method, it is possible to obtain a textile product that is difficult to be charged with static electricity, such as clothing, miscellaneous goods, and other fabric products.

  The synthetic resin fiber of the present invention includes an antioxidant, an ultraviolet absorber, a flame retardant, a release agent, a surfactant, a lubricant, a plasticizer, a colorant, an antibacterial agent, and a nucleating agent as long as the effects of the present invention are not impaired. Additives for resins such as dispersants, fillers, and glass fibers can be added. Two or more of these may be used in combination. These additives may be blended in the master batch or may be blended when producing synthetic resin fibers.

  Hereinafter, although the specific Example of this invention is described, this invention is not limited to this.

(Antistatic agent composition)
In a reaction tank having a capacity of 0.5 L, the ratio of wax (mixture) (A) shown in Table 1 to Table 3 and the ratio of vinyl monomers shown in Table 2 to Tables 2 and 3 (numeric values shown in Table 2). And hydrocarbons (C) shown in Table 3 as necessary in the proportions shown in Table 3, and 280 g of water, 1.6 g of tribasic calcium phosphate as a dispersant and 0 .4 g of hydroxypropylmethylcellulose, 0.02 g of α-methylstyrene dimer as a molecular weight modifier, and 0.66 g of di (3,5,5-trimethylhexanoyl) peroxide as a radical polymerization initiator were mixed. The reaction vessel was charged and reacted at 70 ° C. with stirring for 3 hours. Next, 0.1 g of potassium persulfate as a radical polymerization initiator was dissolved in 0.5 g of water, charged into the reaction vessel, and reacted at 70 ° C. for 1 hour. Then, it cooled to 40 degrees C or less, and obtained the antistatic agent composition through the filtration and the drying process.

(Master Badge)
Each of the base resin (binder resin) shown in Table 4 and the antistatic agent composition obtained above was dry blended at the ratio shown in Table 4 and melt-kneaded at a cylinder temperature of 240 ° C. with a twin-screw extruder. A master batch containing an antistatic agent composition was obtained by pelletizing by cutting. In addition, Table 4 shows the case where it was not able to be formed into a pellet at that time.

(Synthetic resin fiber)
The fiber resin for synthetic resin fibers shown in Tables 5 and 6, respectively, the antistatic agent composition obtained above, and the master batch obtained above as necessary are blended in the proportions shown in Tables 5 and 6 Then, the yarn was produced by a melt spinning method at 240 ° C. to obtain a raw yarn having a fineness of 80 decix. The resulting raw yarn was knitted to produce a milling fabric.

About each obtained milling material | dough, while measuring the surface resistance value with the following method, the external appearance was also evaluated. The results are also shown in Tables 5 and 6.
<Measurement of surface resistance value>
Measurement was performed with a surface resistance measuring instrument under conditions of an applied voltage of 500 V, 25 ° C., and 15% RH.
<Appearance>
Evaluation was made visually and with a tactile sensation, and no foreign matter was found on the surface of the synthetic resin fiber, and there was no unevenness or protrusion when touched with a finger, and a smooth state was considered good.

From the results of Tables 5 and 6, the synthetic resin fibers blended with the antistatic agent composition of each Example showed a good antistatic effect. Among them, the charge obtained by copolymerizing the vinyl monomer (b6) as in Example 3-1-1 to Example 3-2-2 and Example 4-1-1 to Example 4-2-2. Synthetic resin fibers blended with the inhibitor composition exhibited particularly good antistatic effects. Among them, vinyl monomers (b1) to (b3) as in Example 3-1-1 to Example 3-1-4 and Example 4-1-1 to Example 4-1-4. In the case of a synthetic resin fiber blended with an antistatic agent composition obtained by copolymerizing any of the above), a particularly good antistatic effect was exhibited.

Claims (7)

A wax (A), a vinyl (co) polymer (B), and an aliphatic hydrocarbon (C) having 5 to 14 carbon atoms,
The component (A) is at least one wax selected from (a1) paraffin wax, (a2) microcrystalline wax, (a3) Fischer-Tropsch wax, and (a4) polyethylene wax.
The component (B) is (b1) acrylonitrile, (b2) (meth) acrylic acid, (b3) hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate, (b4) styrene, and (b5) A (co) polymer obtained by radical polymerization of at least one vinyl monomer selected from (meth) acrylic acid alkyl esters represented by the formula (1),
The content ratio of the component (A) is 50 to 98 parts by mass with respect to the component (A) + component (B) = 100 parts by mass,
The antistatic agent composition which contains the said component (C) 0.001-1 mass% with respect to the whole quantity of the said component (A).

  The vinyl (co) polymer (B) is selected from (b1) acrylonitrile, (b2) (meth) acrylic acid, and (b3) hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate. The antistatic agent composition according to claim 1, which is a (co) polymer obtained by radical polymerization of at least one vinyl monomer. The vinyl (co) polymer (B) is (b6) a monomer having a polyorganosiloxane group in one molecule and a vinyl group at least at one end, and the vinyl monomer (b1) to A copolymer obtained by radical polymerization of at least one vinyl monomer selected from (b5),
The antistatic agent composition according to claim 1 or 2, wherein the content ratio of the monomer (b6) is 1 to 30% by mass based on the total amount of the vinyl (co) polymer (B).   An antistatic agent-containing masterbatch containing 0.1 to 50% by mass of the antistatic agent composition according to any one of claims 1 to 3. The base resin is a polyester resin or a polyamide resin,
The antistatic agent containing masterbatch of Claim 4 which is an object for polyester fiber or polyamide fiber manufacture.   The antistatic agent composition according to any one of claims 1 to 3 and / or the antistatic agent-containing masterbatch according to claim 4 or 5, wherein the antistatic agent content is 0. Synthetic resin fibers obtained by melt spinning a composition blended to a content of 01 to 5% by mass.   A textile product comprising the synthetic resin fiber according to claim 6.