JP7148341B2 - Elastomer composition for bathroom products and bathroom products - Google Patents

Description

The present invention relates to an elastomeric composition for bathroom articles and bathroom articles. More particularly, it relates to elastomeric compositions for bathroom articles and bathroom articles used in bathrooms.

In the bathroom, bathing products are exposed to nutrient-rich bath water, bath water, etc., and are kept wet for a long period of time. It is inevitable that mold will grow on bathroom items that have not been treated. For the purpose of suppressing the generation of mold or facilitating the removal of mold even if it occurs, there are known bathroom products that utilize metal materials such as stainless steel and copper, and ceramic materials. However, for the elderly who have weakened physical strength such as thermoregulatory function, grip strength, and balance adjustment ability, bathroom products using these materials have problems such as being cold, heavy, and slippery. There is a demand for bathroom accessories that use soft materials such as rubber and thermoplastic elastomers that can impart properties such as soft touch, warmth, lightness, and non-slip properties. However, these soft materials have the property that they are susceptible to fungal mycelium and are easily attacked by fungi. Antifungal treatment using an antifungal agent is known as a countermeasure. The following Patent Documents 1 and 2 are known as antifungal agents.

Japanese Patent Publication No. 2015-516381 JP-A-7-41409

In the above-mentioned Patent Document 1, soft vinyl chloride resin, which has been widely used as a soft thermoplastic resin for a long time, tends to grow mold due to the high addition ratio of plasticizers and other additives. , also simply referred to as "TBZ") and an iodine antifungal agent are disclosed.
In addition, in Patent Document 2 above, when a dodecylbenzenesulfonate of TBZ and an iodine antifungal agent are used in combination, while toxicity to humans and animals is low, high antifungal performance can be exhibited for a long period of time. It is disclosed that it is effective for mold prevention of.

However, from the studies of the present inventors, it has been found that bathroom products using iodine-based antifungal agents do not turn yellow in a bathroom environment where they remain wet for a long time and are not exposed to strong light such as direct sunlight. I knew I would. That is, it has been found that an iodine-based antifungal agent cannot be blended into an elastomer composition for bathroom products intended for use in a bathroom where wetness is unavoidable and the environment is low in light.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elastomer composition for bathroom products and a bathroom product that have excellent antifungal performance and can prevent discoloration when used in a bathroom environment.

The present invention is as follows.
[1] An elastomer composition for bathroom products, comprising a thermoplastic elastomer, thiabendazole and a pyrithione metal salt.
[2] The elastomeric composition for bathroom products according to [1], which contains 0.05 to 10 parts by mass of the thiabendazole and the pyrithione metal salt in total per 100 parts by mass of the thermoplastic elastomer.
[3] The elastomer composition for bathroom products according to [1] or [2], wherein the thiabendazole and the pyrithione metal salt have a molar ratio of 1/9 to 9/1.
[4] The elastomeric composition for bathroom products according to any one of [1] to [3], wherein the thermoplastic elastomer is at least one of a styrene copolymer and an ethylene copolymer.
[5] The styrene-based copolymer is at least one selected from the group consisting of a copolymer of a vinyl aromatic monomer and a diene-based monomer, and hydrogenated products thereof, and the ethylene-based copolymer is at least one selected from the group consisting of copolymers of vinyl monomers and α-olefin monomers, copolymers of vinyl monomers and α-substituted vinyl monomers, and hydrogenated products thereof [4] Elastomeric composition for bathroom articles as described.
[6] The elastomer composition for bathroom products according to any one of [1] to [5], wherein the pyrithione metal salt is at least one of zinc pyrithione and sodium pyrithione.
[7] The elastomer composition for bathroom products according to any one of [1] to [6], wherein the thiabendazole and the pyrithione metal salt are contained as granules having a volume-based median diameter of 1 to 100 μm. thing.
[8] The elastomer composition for bathroom products according to any one of [1] to [7], which contains an inorganic metal antibacterial agent.
[9] The elastomer composition for bathroom products according to any one of [1] to [8], which does not contain a softening agent and has an A hardness of 20 to 90.
[10] A bathroom article comprising the elastomer composition for bathroom articles according to any one of [1] to [9].
[11] The bathroom article according to [10], which is foam-molded.
[12] A bathroom article comprising a substrate and a soft portion integrally molded with the substrate, wherein the soft portion is the elastomer for bathroom articles according to any one of [1] to [9]. A bathroom article comprising the composition.
[13] The bathroom article according to [12], wherein the soft portion is foam-molded.

The bathroom article elastomer composition of the present invention comprises a thermoplastic elastomer, thiabendazole and a pyrithione metal salt. As a result, discoloration can be prevented while exhibiting excellent antifungal performance over a long period of time in a bathroom environment.
Furthermore, when the elastomer composition for bathroom products of the present invention contains 0.05 to 10 parts by mass of thiabendazole and pyrithione metal salt in total, when the entire thermoplastic elastomer is 100 parts by mass, it can be used in a bathroom environment. In addition to the above effect of being able to prevent discoloration while exhibiting excellent antifungal performance over a long period of time, it is also possible to suppress blooming over a long period of time and maintain appearance quality.
In addition, since the bathroom article of the present invention is composed of the above-described elastomer composition for bathroom articles, the effect of the above-described elastomer composition for bathroom articles can be obtained as it is in the bathroom article.

It is a perspective view which shows an example of the handrail for bathtubs. FIG. 2 is a cross-sectional view showing an example of the AA cross section in FIG. 1; It is explanatory drawing which shows an example of the usage condition of a handrail for bathtubs. It is a perspective view showing an example of a shower bench. 5 is an exploded perspective view of the shower bench of FIG. 4; FIG. It is a perspective view which shows an example of a bathtub stand. Fig. 7 is an exploded perspective view of the bathtub stand of Fig. 6; It is explanatory drawing which shows an example of the usage condition of a bathtub stand. It is explanatory drawing which shows the other example of the usage condition of a bathtub stand.

[1] Elastomer composition for bathroom products In the present invention, the term “bathroom” is a general term for facilities provided for the purpose of bringing hot water or water into contact with the human body, and includes showers, bathtubs, washing places equipped with drainage functions, and the like. , means one with at least one
Also, "bathroom supplies" is a general term for items used in bathrooms. Therefore, examples include, but are not limited to, handrails for bathtubs, handrails for bathrooms, shower benches, bathroom chairs, bathtub stands, shower heads, bathroom mats, and parts constituting these.

The bathroom article elastomer composition of the present invention comprises a thermoplastic elastomer, thiabendazole and a pyrithione metal salt.

(1) Thermoplastic elastomer The "thermoplastic elastomer" (hereinafter also simply referred to as "TPE") is the main component constituting the elastomer composition for bathroom products, and is usually 50% by mass of the entire elastomer composition for bathroom products. % or more.
The type of TPE contained in the elastomer composition for bathroom products is not limited, but examples include styrene copolymers, olefin copolymers, polyamide copolymers, polyester copolymers, urethane copolymers, and the like. mentioned. These may be used alone or in combination of two or more.

Among these, the olefin copolymer includes an ethylene copolymer (ethylene copolymer rubber). Furthermore, it includes a thermoplastic elastomer in which an ethylene-based copolymer is dispersedly contained in a matrix of an olefin-based resin (polypropylene, polyethylene, etc.).

Of the above, at least one of styrene-based copolymers and ethylene-based copolymers is preferable as the thermoplastic elastomer used in the elastomer composition for bathroom products of the present invention. These copolymers are not particularly limited as long as they exhibit elastomeric properties, and may be block copolymers or random copolymers.

The "styrene-based copolymer" is a copolymer having structural units derived from an aromatic vinyl compound. A block containing structural units derived from an aromatic vinyl compound usually constitutes a hard segment.
The monomer constituting the hard segment may be an aromatic vinyl compound, and its type is not limited, but examples include styrene, α-methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, Examples include alkyl-substituted styrenes such as 1,3-dimethylstyrene, vinylnaphthalene, and vinylanthracene. These aromatic vinyl compounds may be used alone or in combination of two or more.

On the other hand, the block constituting the soft segment may be formed using any monomer as long as it can exhibit elastomeric properties and function as a soft segment, but it is preferable to use a conjugated diene. . Conjugated dienes forming such soft segments include butadiene, isoprene, chloroprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1,3-octadiene, 4,5 -diethyl-1,3-octadiene, 3-butyl-1,3-octadiene, 1,3-hexadiene, 1,3-cyclohexadiene and the like. These conjugated dienes may be used alone or in combination of two or more.

Such styrenic copolymers include styrene-isoprene-styrene block (SIS) copolymers, styrene-butadiene-styrene block (SBS) copolymers, and styrene-ethylenebutylene-styrene block (SEBS) copolymers. , styrene-ethylene propylene-styrene block (SEPS) copolymers, and the like. Furthermore, some or all of the structural units derived from styrene in these exemplified copolymers can be replaced with structural units derived from styrene derivatives such as α-methylstyrene. Also, these exemplified copolymers may be hydrogenated products. Such styrenic copolymers may be used alone or in combination of two or more.

Specific examples of styrene copolymers (styrene thermoplastic elastomers) include "Kraton G" (G1642, G1652, G1730, etc.) manufactured by Kraton Polymer Japan Co., Ltd., and "Kraton D" manufactured by Kraton Polymer Japan. (D1101, D1102, D1155, D1192, D1161, D1171, DKX405, DKX410, DKX415, etc.), JSR product name "JSR-TR" (JSR-TR1086, JSR-TR1600, etc.), JSR product name "JSR-SIS", JSR's product name "Dynaron", Asahi Kasei's product name "Tuftec" (Tuftec H series, Tuftec P series, etc.), Asahi Kasei's product name "Toughprene" (Tufprene A, Tufprene) 125, Tufprene 126S, etc.), Asahi Kasei's trade name "Asaprene", Asahi Kasei's trade name "Solprene", Kuraray's trade name "Septon", Kuraray's trade name "Hibler", Sumitomo Chemical Co., Ltd. "Esporex SB" manufactured by Mitsubishi Chemical Corporation, "Lavalon" manufactured by Mitsubishi Chemical Corporation, "Denka STR" manufactured by Denki Kagaku Corporation, "Quintac" manufactured by Zeon Corporation, Ken Technos Corporation Trade name "Leostomari" etc. are mentioned. These may be used alone or in combination of two or more.

The above-mentioned "ethylene-based copolymer" is a copolymer having structural units derived from ethylene. That is, for example, a copolymer of ethylene and a vinyl monomer, a copolymer of ethylene and an α-substituted vinyl monomer, a copolymer of ethylene and an α-olefin monomer (for example, an α-olefin having 3 to 20 carbon atoms), etc. included. These may be used alone or in combination of two or more.
Among the above, vinyl monomers include vinyl acetate, acrylic acid, acrylic acid esters, and the like. Examples of α-substituted vinyl monomers include methacrylic acid and methacrylic acid esters. Examples of α-olefins include propylene, 1-butene, 1-pentene, 1-hexane, 4-methyl-1-pentene, 1-heptene and 1-octene. These may be used alone or in combination of two or more.

Therefore, more specifically, ethylene-based copolymers include ethylene-vinyl acetate copolymer (EVA), ethylene-propylene copolymer (EPR), ethylene-propylene-diene copolymer (EPDR), ethylene -propylene-ethyldennorbornene copolymer, ethylene-propylene-dicyclopentadiene copolymer, ethylene-propylene-1,4 hexadiene copolymer and the like. These may be used alone or in combination of two or more. Ethylene-based copolymers also include copolymers having monomers derived from conjugated diene monomers. Specific examples include ethylene-propylene-ethylidene copolymers and ethylene-propylene-diene copolymers. These may be used alone or in combination of two or more.

Among the above, specific examples of the ethylene-vinyl acetate copolymer include the trade name "Ultrasen" manufactured by Tosoh Corporation, the trade name "Eval" manufactured by Kuraray Co., Ltd., and the trade name "Eval" manufactured by Mitsui-DuPont Polychemicals. Everflex” and the like. These may be used alone or in combination of two or more.

(2) Thiabendazole and pyrithione metal salt The thiabendazole (hereinafter also simply referred to as "TBZ") and the pyrithione metal salt (hereinafter also simply referred to as "MPT") are antifungal components in the elastomer composition for bathroom products of the present invention. Thus, thiabendazole and pyrithione metal salt coexist in the elastomer composition for bathroom products of the present invention.

The inventors of the present invention were well aware that thiabendazole and pyrithione metal salts alone are excellent antifungal components. The present inventors have found that the synergistic effect is not only achieved by simply gathering the components together, but also synergistically. In other words, while each component alone cannot withstand the durability test, when used together, it can withstand the durability test, and exhibits excellent antifungal performance over a long period of time in a bathroom environment. I found it possible. This finding is substantiated in the examples below.

The above "thiabendazole" (TBZ) is a compound represented by the following chemical formula (1).

TBZ is known to have low skin irritation, low solubility in water, and excellent stability. It is not known.
Of course, instead of part or all of TBZ, TBZ derivatives (compounds in which substituents are introduced into each part of TBZ) can be used as long as they exhibit the same antifungal performance.

このＭＰＴも、ＴＢＺと同様に、人体への害が少なく、皮膚刺激性が小さく、且つ、水への溶解度が小さく、安定性に優れていることが知られているが、ＴＢＺとの併用により、浴室環境における耐久性が相乗的に高くなることは知られていない。 The "pyrithione metal salt" (MPT) is a compound represented by the following chemical formula (2) or chemical formula (3). In chemical formula (2) representing this MPT, "M ¹ " represents a metal ion, and in chemical formula (3) "M ² " represents a metal ion.

Like TBZ, this MPT is also known to be less harmful to the human body, less irritant to the skin, less soluble in water, and more stable. , is not known to synergistically increase durability in the bathroom environment.

^The types of metals forming the metal ions (M ¹ and M ² ) constituting MPT are not limited as long as the antifungal performance can be exhibited. (Ni), zinc (Zn), and the like. Examples of ^M2 include lithium (Li), sodium (Na), potassium (K), and the like. These may be used alone or in combination of two or more.
Of course, instead of part or all of MPT, MPT derivatives (compounds in which substituents are introduced into each part of MPT) can be used as long as they exhibit the same antifungal performance.

In the elastomer composition for bathroom products of the present invention, the MPT includes zinc bis[1,2-dihydro-2-thioxopyridine- ¹ -olate] (so-called zinc pyrithione) (so-called zinc pyrithione) in which M1 is Zn. 2-(Sodiothio)pyridine-1-oxide (so-called sodium pyrithione) (see chemical formula (5) below) is preferable from the viewpoint of antifungal performance. In particular, these are preferable from the viewpoint of obtaining the effects of combined use with TBZ. Furthermore, among these, zinc pyrithione (hereinafter also simply referred to as "ZPT") is particularly preferable in the bathroom article elastomer composition of the present invention from the viewpoint of obtaining the effects of combined use with TBZ.

Although these TBZ and MPT may be contained in any ratio, it is preferable that the molar ratio of TBZ:MPT is in the range of 1:9 to 9:1, for example. Within this range, it is possible to obtain the effect of using these together, that is, the effect of maintaining high antifungal performance in an environment in contact with water. This ratio is more preferably 1:7 to 7:1, more preferably 1:5 to 5:1, and particularly preferably 1:4 to 4:1.

TBZ is known to have low skin irritation and excellent stability, but is slightly soluble in water. Therefore, when TBZ is used in an environment where it contacts with water, the antifungal performance gradually deteriorates. This is shown in the examples (combined deterioration test) described later.
In addition, MPT is also known to be less harmful to the human body, less irritant to the human body, and more stable than TBZ. (pyridine-N-oxide-2-sulfonic acid represented by the following chemical formula (6) and 2-pyridinesulfonic acid represented by the following chemical formula (7)). For this reason, when MPT is used in an environment where it contacts with water, the antifungal performance gradually deteriorates. This is similarly demonstrated in the examples (combined deterioration test) described later.

On the other hand, as shown in the examples described later, when TBZ and MPT are used in combination, the antifungal performance does not decrease even when used in an environment in contact with water, or each can be used alone. It exhibits higher antifungal properties than the case. The reason for this can be considered as follows.
That is, the components represented by chemical formulas (6) and (7) have sulfonic acid groups. On the other hand, TBZ is a basic substance with an imidazole structure. Therefore, in a bathroom environment that comes into contact with water, the components represented by chemical formula (6) or chemical formula (7) eluted from MPT and TBZ generate salts or associated substances to prevent outflow, A possible mechanism is that the elastomer composition for bathroom articles of the present invention can remain on the surface of the bathroom articles. This mechanism is also supported by the fact that the closer the molar ratio of TBZ and MPT is to 1/1, the higher the antifungal property is shown in the combined deterioration test in the examples described later.

TBZ and MPT may be contained separately in the elastomer composition for bathroom products of the present invention, but are contained as granules containing both of them so that TBZ and MPT coexist. preferably. That is, the mixed granules of TBZ and MPT are preferable in terms of exhibiting the above effects. Since these two antifungal components are coexisting as one granule, when each antifungal component is contained singly in the elastomer composition for bathroom products of the present invention in a dispersed state. In addition to being able to exhibit high antifungal performance compared to conventional products, granulation enables more advanced control of sustained release properties. Therefore, excellent antifungal performance can be exhibited over a long period of time in a bathroom environment.

Although the form of the granulated product of TBZ and MPT is not limited, for example, it can be a granulated product in which only the respective powders of TBZ and MPT are consolidated, or a granulated product in which the respective powders of TBZ, MPT and an extender are consolidated. It can also be a thing. Alternatively, TBZ and MPT may be dispersed in a polymerization liquid and then polymerized to form polymer particles incorporating TBZ and MPT. Furthermore, a granulated product obtained by supporting TBZ and MPT on a carrier can also be used. As the carrier, an inorganic substance or an organic substance may be used. Furthermore, granules obtained by methods other than these may be used. These may be used alone or in combination of two or more.

The size of the granules containing TBZ and MPT is not limited, but can be, for example, 1 μm or more and 100 μm or less in terms of volume-based median diameter. By setting the volume-based median diameter to 1 μm or more, the dispersibility of the granules is improved, and a more remarkable effect can be obtained. That is, a high synergistic effect due to the coexistence of TBZ and MPT can be exhibited more effectively. On the other hand, by setting the volume-based median diameter to 100 μm or less, it is possible to improve the surface properties of bathroom articles obtained using the elastomer composition for bathroom articles of the present invention.
The volume-based median diameter can be 5 μm or more and 80 μm or less, and further can be 10 μm or more and 50 μm or less.

The above-mentioned volume-based median diameter is determined according to JIS Z8825: 2013 (particle size analysis-laser diffraction/scattering method), using a laser diffraction/scattering particle size distribution analyzer, using ion-exchanged water as a measurement solvent, and using ion-exchanged water as a measurement solvent. It is calculated as the value of d50 in the particle size distribution in which the light scattering pattern measured assuming that the particles have a refractive index of 0 and the water as the dispersion medium has a refractive index of 1.33 is converted on a volume basis.

As described above, the elastomer composition for bathroom products of the present invention may contain a thermoplastic elastomer, TBZ and MPT, and the contents of TBZ and MPT are not limited. , a total of 0.05 parts by mass or more and 10 parts by mass or less of TBZ and MPT can be included. Within this range, excellent antifungal properties can be exhibited.
The content of TBZ and MPT is preferably 0.05 parts by mass or more and 5 parts by mass or less, more preferably 0.05 parts by mass or more and 3 parts by mass or less, and 0.05 parts by mass or more and 2.5 parts by mass or less. More preferred. In particular, in the range of 0.05 parts by mass to 2.5 parts by mass, it can be used without blooming. Furthermore, within the range of 0.1 parts by mass or more and 1.3 parts by mass or less, it is possible to prevent the occurrence of bloom and maintain extremely excellent appearance quality for a long period of time.

(3) Other Components The elastomer composition for bathroom products of the present invention can contain other components in addition to the thermoplastic elastomer, TBZ and MPT. Other components include inorganic metal-based antibacterial agents. Inorganic metal-based antibacterial agents are antibacterial agents that contain antibacterial metal components in a solid state (powder, film, plate, plate, etc.), ionic state (solution, etc.), etc., and are entirely composed of inorganic components. It is a structured antibacterial agent. Antibacterial metal components include copper, silver, nickel, magnesium, zinc, platinum, gold and the like. These may be used alone or in combination of two or more.

As the antibacterial metal component, the above metals may be used as they are, or they may be carried on a separate carrier, and the whole may function as an inorganic metal antibacterial agent. When a carrier is used, the type of carrier is not limited. titanium, zinc oxide, etc.), titanates (potassium titanate, etc.), ceramics, and the like. These may be used alone or in combination of two or more.
Examples of antibacterial metal components include Novaron (Toa Gosei), Bactekilar (Kanebo), Vicam AK (Otsuka Chemical), Zeomic (Sinanen Zeomic), and Silwell (Fuji Silysia).

Fillers can also be used as other components. The type of filler is not limited, and examples thereof include inorganic fillers, organic fillers and fibrous fillers. These may be used alone or in combination of two or more.
Among them, inorganic fillers include carbonates (calcium carbonate, magnesium carbonate, barium carbonate, etc.), sulfates (barium sulfate, calcium sulfate, calcium sulfite, etc.), hydroxides (calcium hydroxide, magnesium hydroxide, water aluminum oxide, etc.), oxides (magnesium oxide, titanium oxide, iron oxide, zinc oxide, alumina, silica, zirconia), silicates (calcium silicate, etc.), phosphates (calcium phosphate), diatomaceous earth, talc, etc. , dolomite, mica, bentonite, gypsum, calcined clay, white carbon, carbon black, metal powder, stone powder, slag, fly ash, and the like. Examples of organic fillers include wood flour, coconut flour, and walnut flour. Examples of fiber fillers include natural fibers (cotton, hemp, animal hair), resin fibers, and inorganic fibers (glass fiber, etc.). These may be used alone or in combination of two or more.

The bathroom article elastomeric composition of the present invention may be obtained in any manner and consequently may include the thermoplastic elastomers TBZ and MPT described above. Specifically, using a well-known kneader (mixer) such as a Banbury mixer, a Brabender mixer, a single-screw or twin-screw extruder, a kneader, and a mixing roll, for example, pelletized thermoplastic elastomer, TBZ and MPT and under conditions in which the thermoplastic elastomer is melted. In order to increase the uniformity of the components in the composition, TBZ and MPT may be mixed in advance with at least a part of other components before being charged into the kneader. It is also possible to mix in advance under the condition that the plastic elastomer does not melt. For such mixing, a mixer with a relatively weak shearing force, such as a super mixer, a Henschel mixer, a ribbon mixer, a conical mixer, etc., is suitable, and TBZ and MPT can be uniformly adhered to the surface of the thermoplastic elastomer in advance. Therefore, after kneading, a more homogenous elastomeric composition for bathroom products can be obtained.

The hardness of the elastomer composition for bathroom products of the present invention is not limited, but can be, for example, in the range of 20 or more and 90 or less in A hardness shown in JIS K6253 in a state where no softening agent is included. By setting the A hardness to 20 or more, excellent slip resistance can be obtained. On the other hand, by setting it to 90 or less, it is possible to obtain excellent grip while maintaining sufficient softness. The A hardness can further be 30 or more and 90 or less, particularly 40 or more and 85 or less.

[2] Bathroom Product The bathroom product of the present invention comprises an elastomer composition for bathroom products, or has a substrate and a soft portion integrally molded with the substrate, wherein the soft portion is an elastomer for bathroom products. composition.
Bathroom products are items used in a bathroom, and are not particularly limited as long as they are made of the elastomer composition for bathroom products of the present invention or have a soft portion made of the elastomer composition for bathroom products of the present invention. Instead, it can be used as various bathroom accessories.

The soft portion integrally molded with the base material means having a form in which the soft portion is integrally molded with the base material. That is, for example, insert molding is performed using a base material as a core material to form a soft portion covering the base material, and the base material is immersed in a melted elastomer composition and then pulled out to form an elastomer adhered to the base material. Examples thereof include a form of dip coat molding in which the composition is solidified, and a form of curtain coat molding in which the elastomer composition adhered to the substrate is solidified after the molten elastomer composition is dripped onto the substrate. Also, the base material is harder than the soft part. Therefore, it is a member that can function as a core material, for example.

(1) Handrail for Bath The handrail for bath 1 (see FIGS. 1 to 3) includes a grip portion 11 and a vise-type saddle-shaped mounting portion 15 .
Of these, the grip portion 11 has a pipe-shaped core material 11b as a base material. Furthermore, it has a coating layer 11a as a soft portion that covers the core material 11b (see FIG. 2). The core material (base material) 11b and the coating layer (soft portion) 11a are integrally formed by insert molding.
On the other hand, the mounting portion 15 includes a fixed member 17 to which the pair of core members 11b is inserted and fixed, a movable member 16 facing the fixed member 17, and a slide plate 18 connecting the upper ends of the fixed member 17 and the movable member 16. , (see FIG. 1).
A handle 19 for moving the movable member 16 in a direction facing the fixed member 17 is provided on the outer surface of the movable member 16 . Furthermore, the inner grip 12 is fixed to the outer surface of the movable member 16 . The inner grip 12 includes a pipe-shaped core material as a base material (not shown) and a coating layer 12a as a soft portion covering the core material. The core material and the covering layer 12a are integrally molded by insert molding.

Since the coating layers 11a and 12a are soft portions made of the elastomer composition for bathroom products of the present invention, they prevent discoloration of the coating layers 11a and 12a while exhibiting excellent antifungal performance over a long period of time in a bathroom environment. be able to.
Moreover, this handrail 1 for a bathtub can be used by the aspect shown in FIG. 3, for example. That is, the upper end portion 51 of the bathtub 50 is sandwiched between the inner surface 17a of the fixed member 17 and the inner surface 16a of the movable member 16, the handle 19 is rotated to move the movable member 16, and the inner surface 17a of the fixed member 17 and the inner surface 16a of the movable member 16 are moved. By clamping and fixing the upper end portion 51 with the inner surface 16 a of the movable member 16 , it can be attached to the bathtub 50 .
When using the bathtub handrail 1, as shown in FIG. 3, the grip part 11 can be grasped with both hands. Thereby, it is possible to enter and exit the bathtub 50 safely. In addition, by holding the inner grip 12 while taking a bath, the user can safely spend time in the bathtub.

SEBS or SBS is preferable as the resin component contained in the elastomer composition for bathroom products constituting the coating layers 11a and 12a. SEBS and SBS are comfortable to the hand, have a good touch, and are excellent in slip resistance.
A floor mat 60, shown in FIG. 3, can also be formed from the elastomeric bathroom article composition of the present invention. Again, it is preferable to use SEBS or SBS. The floor mat 60 made of the elastomer composition for bathroom products of the present invention or the floor mat 60 having a soft portion made of the elastomer composition for bathroom products of the present invention exhibits excellent antifungal performance for a long period of time in a bathroom environment. However, discoloration of the coating layers 11a and 12a can be prevented.

(2) Shower Bench The shower bench 2 (see FIGS. 4 and 5) includes a backrest portion 21 , an armrest portion 22 , a seat portion 23 and legs 24 .
The backrest portion 21 includes a backrest frame 21b and a backrest cushion 21a attached to the backrest frame 21b. The armrest portion 22 includes an armrest frame 22b as a base material and an armrest grip 22a as a soft portion integrally formed with the armrest frame 22b by insert molding (see FIG. 5).
On the other hand, the seat 23 includes a seat frame 23b and a seat cushion 23a attached to the seat frame 23b (see FIGS. 4 and 5).
Further, the leg portion 24 includes a leg frame 24b and a leg cover 24a attached to the leg frame 24b (see FIGS. 4 and 5).

Of the above, the backrest cushion 21a, the seat cushion 23a, and the leg cover 24a are bathroom articles each made of the elastomer composition for bathroom articles of the present invention, and for example, each is injected using a predetermined mold. It can be formed by molding. The resulting back cushion 21a, seat cushion 23a and leg cover 24a can be joined at their corresponding sites, for example, using a suitable adhesive. Since these are composed of the elastomer composition for bathroom products of the present invention, they can prevent discoloration while exhibiting excellent antifungal performance over a long period of time in a bathroom environment.

Furthermore, it is preferable that the resin component contained in the bathroom article elastomer composition constituting the armrest grip 22a is SEBS or SBS. SEBS and SBS are comfortable to the hand, have a good touch, and are excellent in slip resistance.
Further, the resin component contained in the bathroom appliance elastomer composition constituting the backrest cushion 21a and the seat cushion 23a is preferably EVA. It is preferably foamed EVA containing. The use of foamed EVA provides excellent cushioning properties, slip resistance, and a soft touch, making it easy to relax.
The resin component contained in the bathroom article elastomer composition forming the leg cover 24a is preferably SBR. SBR has slip resistance and excellent strength.

(3) Bathtub Stand The bathtub stand 3 (see FIGS. 6 to 9) includes a pedestal portion 31 and legs 32 connected to the lower portion of the pedestal portion 31 .
Among them, the pedestal portion 31 includes a pedestal frame 31b and a soft top plate 31a joined on the pedestal frame 31b.
The leg 32 also includes a leg frame 32b and a leg cover 32a attached to the leg frame 32b.
Of the above, the top plate 31a and the leg cover 32a are bathroom articles made of the elastomer composition for bathroom articles of the present invention, and can be formed, for example, by injection molding using a predetermined mold. The obtained top plate 31a can be joined to the corresponding portion of the base frame 31b, and the obtained leg cover 32a to the corresponding portion of the leg frame 32b, for example, using an appropriate adhesive.

The resin component contained in the bathroom appliance elastomer composition forming the top plate 31a is preferably EVA, and particularly the top plate 31a is preferably foamed EVA containing the antifungal component described above. The use of foamed EVA provides excellent cushioning properties, slip resistance, and a soft touch, making it easy to relax. Moreover, it is preferable that the resin component contained in the bathroom article elastomer composition constituting the leg cover 32a is SBR. SBR has slip resistance and excellent strength.
For example, as shown in FIG. 8, such a bathtub stand 3 can be placed on the floor near the bathtub 50 and used as a stepping stool when taking a bath. Further, for example, as shown in FIG. 9 , the bathtub stand 3 can be placed on the bottom of the bathtub 50 and used as a chair in the bathtub 50 .

The bathroom product may be a non-foaming product, but may be a foaming product. In that case, the elastomer composition for bathroom products of the present invention described above can be appropriately foamed by adding components such as a foaming agent necessary for foaming.
When a foaming agent is used, its type is not limited as long as it results in foaming. Examples of foaming agents include inorganic foaming agents, organic foaming agents, thermally expandable fine particles, and the like. Examples of inorganic foaming agents include ammonium carbonate, ammonium hydrogencarbonate, sodium hydrogencarbonate (sodium bicarbonate), ammonium nitrite, sodium borohydride, and azides.
As the organic foaming agent, azodicarbonamide (ADCA), dinitrosopentamethylenetetramine (DPT), p,p-oxybisbenzenesulfonylhydrazide (OBSH), azobisisobutyronitrile (AIBN) and the like can be used. can. These may be used alone or in combination of two or more.

However, as described above, the elastomer composition for bathroom products contains both TBZ and MPT. When both TBZ and MPT are included, insufficient foaming may occur depending on the combination of foaming agents. Therefore, the amount of the foaming agent may be appropriately adjusted, or a foaming agent that does not cause insufficient foaming may be used. Specifically, it is preferable not to use only DPT, but to use a foaming agent other than DTP, or to use a foaming agent other than DTP.
When a foaming agent is used, the amount ratio thereof can be set to an appropriate value. parts or more, preferably 0.3 parts by mass or more, more preferably 0.5 parts by mass or more. From the viewpoint of obtaining fine foam cells, the content is 20 parts by mass or less, preferably 10 parts by mass or less, and more preferably 5 parts by mass or less.

Examples of the elastomer composition for bathroom products and bathroom products according to the present invention are described below.
[1] Evaluation test on elastomer composition for bathroom products (1) Antifungal test Each elastomer composition for bathroom products was prepared by blending the antifungal components (various types and each compounding ratio) shown in Tables 1 to 3. . After that, test pieces were prepared using these compositions, and antifungal tests were conducted (Examples 1 to 8 and Comparative Examples 1 to 12). The test method is as follows.

(1-1) Preparation of Test Specimen Each component shown in Tables 1 to 3 was molded into a 2 mm thick plate shape or a 5 mm thick foam molding according to the following procedure. Test specimens were cut from this plate-shaped product or foam molded product in each case.
During the kneading described above, the following components were mixed for each thermoplastic elastomer. In addition, thiabendazole and pyrithione metal salt were contained as granules wet-supported on porous calcium silicate (Fluorite R manufactured by Tomita Seiyaku Co., Ltd.).
The granules were dispersed in ion-exchanged water, and the particle size distribution was measured using a laser diffraction particle size distribution analyzer "MS2000" manufactured by Malvern.
Further, the molar ratio was calculated assuming that thiabendazole has a molecular weight of 201 and zinc pyrithione has a molecular weight of 318.
・ “When kneading SEBS”: 10 parts by mass of PP (polypropylene), 10 parts by mass of calcium carbonate, blue pigment (copper phthalocyanine pigment)
・ “When kneading SBS”: 10 parts by mass of PP (polypropylene), blue pigment (copper phthalocyanine pigment)
・ “When kneading SBR”: 10 parts by mass of calcium carbonate, 1.8 parts by mass of di(t-butylperoxyisopropyl)diisopropylbenzene, blue pigment (copper phthalocyanine pigment)
- "When kneading EVA": 2 parts by mass of foaming agent (azodicarbonamide), 1 part by mass of stearic acid, 0.6 parts by mass of cross-linking agent, 0.5 parts by mass of zinc oxide, blue pigment (copper phthalocyanine pigment)

The mode of production of the plate-shaped article is as follows.
(1) Examples and comparative examples using SEBS, SBS or SBR Pellets of each thermoplastic elastomer (SEBS, SBS or SBR), blue pigment, thiabendazole, zinc pyrithione, granules containing these, or diiodomethyl - Any antifungal component selected from p-tolylsulfone and other components are blended, and then stirred for 10 minutes with a conical mixer to adhere each additive to the surface of the thermoplastic elastomer pellets. let me
Next, the pellets to which each additive is attached are melt-kneaded using an extruder (continuous kneader) under the following conditions, extruded into strands, and cooled in cold water. It was cut into pieces of about 3 mm to obtain pellets of the elastomer composition for bathroom products.
[Melt-kneading conditions]
Extruder: manufactured by Technobell Co., Ltd., product name "KZW32TW-60MG-NH"
Cylinder temperature: 180-230°C
Screw rotation speed: 300r/min
After that, pellets made of the obtained elastomer composition for bathroom articles were injection molded under the following conditions to prepare a plate of width 125 mm×length 125 mm×thickness 2 mm.
[Injection molding conditions]
Injection molding machine: manufactured by Mitsubishi Heavy Industries, Ltd., product name "100MSIII-10E"
Injection molding temperature: 200°C
Injection pressure: 30%
Injection time: 10 sec
Mold temperature: 40°C

(2) Examples and Comparative Examples Using EVA Thermoplastic elastomer (EVA) pellets, blue pigment, thiabendazole, zinc pyrithione, granules containing these, or selected from diiodomethyl-p-tolylsulfone After each of the antifungal components and the other components was blended, the mixture was stirred with a conical mixer for 10 minutes to allow each additive to adhere to the surface of the thermoplastic elastomer pellets.
Next, the pellets to which each additive was attached were injection molded under the following conditions. Immediately after the injection was completed, the mold was opened (holding pressure: 0 sec, 0%, cooling: 0 sec) to obtain a foam molded product.
[Injection molding conditions]
Injection molding machine: manufactured by Mitsubishi Heavy Industries, Ltd., product name "100MSIII-10E"
Injection molding temperature: 200°C
Injection pressure: 30%
Injection time: 10 sec
Mold temperature: 40°C
Mold dimensions: thickness 5 mm, width 95 mm, length 123 mm

(1-2) Test method Before imposing the following composite deterioration test, each test piece of Examples 1 to 8 and Comparative Examples 1 to 12 was tested in accordance with JIS Z2911 (antifungal resistance test method). imposed. That is, a five-bacteria complex suspension was dropped onto each test piece on an agar medium, cultured for 4 weeks at a predetermined temperature and humidity, and the state of mycelium growth on the test piece was evaluated.
Then, after subjecting the following composite deterioration test, each test piece was again subjected to a test based on JIS Z2911 (antifungal resistance test method).

(1-3) Composite deterioration test For each test piece, the following five forced deterioration test items of heat resistance test, chemical resistance test, hot water resistance test, chlorine resistance test, and weather resistance test are performed in order as one cycle. , for a total of 5 cycles.
・Heat resistance test: Leave for 3 days in an environment with a temperature of 60 ° C and a humidity of 100% ・Chemical resistance test: Immersed in neutral detergent at room temperature for 1 day ・Chlorine resistance test: Bath water cleaning agent (Kao Corporation) in 50 L of 40 ° C product, product name “Furomizu Wonder”) and immersed for 4 hours ・Hot water resistance test: immersed in hot water at 60 ° C for 15 hours ・Weather resistance test: Xenon lamp irradiation for 8 hours

(1-4) Evaluation method Evaluation was made in the following 6 grades from 0 to 5.
"0": No fungal growth was observed with the naked eye or under a microscope.
"1": Growth of fungi is not observed with the naked eye, and can be clearly confirmed under a microscope.
"2": The growth of fungi is observed with the naked eye, and the growth area is less than 25% of the total sample area.
"3": The growth of fungi is observed with the naked eye, and the growth area is 25% or more and less than 50% of the total area of the sample.
"4": Mycelium grows well, and the growth area is 50% or more of the total sample area.
"5": Growth of mycelium is severe, and fungi cover the entire surface of the sample.

(1-5) Test results The test pieces of Examples 1 to 8 and Comparative Examples 1 to 12 were evaluated for mold resistance before the composite deterioration test. I was not able to admit.
After that, a composite deterioration test was imposed, and antifungal evaluation was performed after the composite deterioration test. As a result, as shown in Tables 1 to 3, in Examples 1 to 4, Examples 6 to 7, and Comparative Examples 9 to 12, no fungal growth was observed with the naked eye or under a microscope. , Example 5, Example 9 and Comparative Examples 1 to 8, growth of fungi was observed.
From these results, it can be seen that the antifungal component is affected by the combined deterioration test simulating the use environment as described above. Furthermore, when ZPT was blended alone (Comparative Examples 1 to 4) and when TBZ was blended alone (Comparative Examples 5 to 8), excellent antifungal performance was exhibited before the composite deterioration test. , it can be seen that the antifungal performance is reduced by imposing the composite deterioration test.
On the other hand, when ZPT and TBZ were used together (Examples 1 to 4) and when diiodomethyl-P-tolylsulfone was added (Comparative Examples 9 to 12), there was no change in antifungal performance before and after the combined deterioration test. It can be seen that excellent antifungal durability can be exhibited in the elastomer composition for bathroom products. Furthermore, it can be seen that the closer to 1/1 the molar ratio of both TBZ and MPT, the better the antifungal properties.

(2) Water immersion test A water immersion test was performed on test pieces using the elastomer compositions for bathroom products shown in Tables 1 and 3 (Examples 1 to 4 and Comparative Examples 1 to 12). did The test method is as follows.
(2-1) Test method Each test piece (5 pieces each) of Examples 1 to 4 and Comparative Examples 1 to 12 was immersed in ion-exchanged water at 60 ° C. for 24 hours, and the Lab value before and after that was measured as color difference. (Nippon Denshoku Industries Co., Ltd., product name “SZ-Σ80”). Then, the amount of change in the b value of each of the five test pieces before and after the immersion was measured, and the average value is shown in Table 4 as Δb.
Similarly, each test piece (5 pieces each) of Examples 1 to 4 and Comparative Examples 1 to 12 was immersed in 60 ° C. tap water (initial residual chlorine concentration 0.4 mg / L) for 24 hours. was measured using a color difference meter (manufactured by Nippon Denshoku Industries Co., Ltd., product name “SZ-Σ80”). Then, the amount of change in the b value of each of the five test pieces before and after the immersion was measured, and the average value is shown in Table 4 as Δb.

(2-2) Test Results From the results in Table 4, the changes in Δb (difference between Δb due to immersion in tap water and Δb due to immersion in ion-exchanged water) of Examples 1 to 4 and Comparative Examples 1 to 8 were all 0.0. It was less than 1 and no discoloration was observed. On the other hand, the Δb changes in Comparative Examples 9 to 12 were 2.40 to 3.02, indicating that discoloration was observed in the water immersion.
That is, as shown in the test results (1-5) above, Comparative Examples 9 to 12 showed no change in antifungal performance before and after the combined deterioration test, and exhibited excellent antifungal durability in the elastomer composition for bathroom products. Although it was able to demonstrate, it turned out that it discolors by contact with tap water.

このジヨードメチル－ｐ－トリルスルホンから、ヨウ素イオン（Ｉ^－、無色）が遊離され、遊離されたヨウ素イオンが酸化されてヨウ素（Ｉ_２、褐色）を形成することで変色（黄変）を生じるものと考えられる。更に、この際のヨウ素イオンの酸化は、水道水に含まれた塩素が促進したものと考えられる。従って、例えば、浴湯の消毒を目的として添加され得る次亜塩素酸化合物や塩素含有化合物等に起因して、同様の変色を来すことが考えられることから、優れた防カビ性を有するものの浴室用品用エラストマー組成物に対してジヨードメチル－ｐ－トリルスルホン等のヨウ素化合物を利用するのは難しいことが分かる。 Although the reason for the discoloration in Comparative Examples 9 to 12 is not clear, it can be considered as follows. That is, the antifungal component diiodomethyl-p-tolylsulfone (iodine compound) used in Comparative Examples 9 to 12 is represented by the following chemical formula (8).

Iodine ions (I ⁻ , colorless) are liberated from this diiodomethyl-p-tolylsulfone, and the liberated iodine ions are oxidized to form iodine (I ₂ , brown), resulting in discoloration (yellowing). it is conceivable that. Furthermore, the oxidation of iodine ions at this time is considered to be promoted by chlorine contained in the tap water. Therefore, for example, hypochlorous acid compounds and chlorine-containing compounds that may be added for the purpose of disinfecting bath water may cause similar discoloration. It has proven difficult to utilize iodine compounds such as diiodomethyl-p-tolylsulfone in elastomeric compositions for bathroom products.

In addition, since the above-mentioned discoloration does not occur in an environment where a lot of light can be irradiated, the release of iodine ions (I ⁻ ) is suppressed by light irradiation, or iodine (I ₂ ) is generated by oxidation. Even if it is, it is considered that the color change does not occur because it is reduced to the iodide ion (I ⁻ ).
In this respect, the elastomer composition for bathroom products is an elastomer that is used in the manufacture of bathroom products, and it is difficult to expect that light irradiation sufficient to suppress the above-mentioned discoloration can be obtained in a bathroom environment. Therefore, iodine compounds such as diiodomethyl-p-tolylsulfone are considered unsuitable as antifungal components for use in elastomer compositions for bathroom products.

(3) Bloom test (3-1) Preparation of test piece A composition was made. The method of preparing the elastomer compositions for bathroom articles and the preparation of the test pieces of Examples 1-5 and 1-6 are the same as in Example 1. After that, these test pieces (Examples 1-1 to 1-6) were subjected to Bloom test.

(3-2) Test method The test piece is left in a constant temperature and humidity bath (temperature: 40 ° C., relative humidity: 80%) for 192 hours, and then a load of 3 N (about 300 g) is applied to the sheet surface with black drawing paper. The surface of the sheet was lightly rubbed, and the presence or absence of dust particles, oil, or other deposits on the sheet surface was visually observed to observe the state of bloom generation.
(3-2) Evaluation method The evaluation of the state of occurrence of bloom was carried out visually and according to the following criteria.
"0": No bloom was observed.
"1": Very little bloom is observed.
"2": Occurrence of bloom is observed.

(3-4) Test Results As shown in Table 5, blooming can be suppressed by setting the amount of the antifungal component to less than 1.5 parts by mass. Furthermore, it can be seen that blooming can be prevented by setting the amount of the antifungal component added to 0.5 parts by mass or less.

(4) Foaming Test (4-1) Preparation of Test Piece Foam molded articles (test pieces for foaming test) of Examples 5 to 9 and Comparative Example 13 were prepared. Then, the thickness of the foam-molded product was measured at the center of the mold and at five points 10 mm closer to the center from the square, and the expansion ratio was calculated from the average value/the thickness of the mold (5 mm). That is, the expansion ratio is 1.0 when no foaming occurs, and the expansion ratio is 2.0 when the average thickness after foaming is 10.0.
The components of each foam molded product are as follows.

Example 5:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), antifungal component {0.75 parts by mass of thiabendazole + 0.75 parts by mass of zinc pyrithione} (1.5 parts by mass) crosslinked agent (1.5 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {ADCA + zinc oxide} (7 parts by mass). Foaming ratio 1.87.
ADCA is azodicarbonamide (the same shall apply hereinafter) and is a thermal decomposition type blowing agent.

Example 6:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), antifungal component {0.75 parts by mass of thiabendazole + 0.75 parts by mass of zinc pyrithione} (1.5 parts by mass) crosslinked agent (1.5 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {ADCA + zinc oxide + DPT + urea} (6.4 parts by mass). Foaming ratio 1.75.
DPT is dinitrosopentamethylenetetramine (the same shall apply hereinafter) and is a thermally decomposable foaming agent.

Example 7:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), antifungal component {0.75 parts by mass of thiabendazole + 0.75 parts by mass of zinc pyrithione} (1.5 parts by mass) crosslinked agent (1.5 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {ADCA + DPT + urea} (6.4 parts by mass). Foaming ratio 1.68.

Example 8:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), antifungal component {0.75 parts by mass of thiabendazole + 0.75 parts by mass of zinc pyrithione} (1.5 parts by mass) crosslinked agent (1.65 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {ADCA+OBSH} (4.4 parts by mass). Foaming ratio 1.61.
OBSH is p,p-oxybisbenzenesulfonyl hydrazide and is a thermal decomposition type blowing agent.

Example 9:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), antifungal component {0.75 parts by mass of thiabendazole + 0.75 parts by mass of zinc pyrithione} (1.5 parts by mass) crosslinked agent (1.3 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {DPT + urea} (5.7 parts by mass). Foaming ratio 1.36.

Comparative Example 13:
EVA (90 parts by mass), olefinic TPE (10 parts by mass), calcium carbonate (40 parts by mass), cross-linking agent (1.3 parts by mass), cross-linking aid (0.5 parts by mass), foaming agent {DPT + urea } (5.7 parts by mass). Foaming ratio 1.75.

(4-2) Test Results From the results of (4-1) above, the expansion ratios of Examples 6 to 9 and Comparative Example 13 were as described above, compared to Example 5, which had the highest expansion ratio. As a result, compared with Examples 5 to 8 and Comparative Example 13, the foaming of Example 9 was weaker, and it was found that insufficient foaming may occur when an attempt is made to obtain a foamed molded product with a large expansion ratio. From these results, it can be seen that at least ADCA is preferably contained as a foaming agent when foam-molding an elastomer composition for bathroom products containing a thermoplastic elastomer, thiabendazole and a pyrithione metal salt.

It should be noted that the present invention is not limited to the specific examples described above, and various modifications can be made within the scope of the present invention according to the purpose and application.

1; bathtub handrail,
11; grip portion, 11a; coating layer (soft portion), 11b; core material (base material),
12; inner grip (base material), 12a; coating layer (soft portion),
15; mounting portion,
16; movable member, 16a; inner surface,
17; fixing member, 17a; inner surface,
19; handle,
2; shower bench,
21; backrest portion, 21a; backrest cushion, 21b; backrest frame,
22; armrest portion, 22a; armrest grip (soft portion), 22b; armrest frame (base material),
23; seat, 23a; seat cushion, 23b; seat frame,
24; leg, 24a; leg cover, 24b; leg frame,
3; bathtub stand,
31; pedestal portion, 31a; top plate, 31b; pedestal frame,
32; leg, 32a; leg cover, 32b; leg frame,
50; bathtub,
51; upper end,
60; floor mat.

Claims (14)

including thermoplastic elastomers, thiabendazole and pyrithione metal salts;
1. An elastomer composition for bathroom products , characterized by being used as the soft portion of a bathroom product having a soft portion and a hard portion including a base material or a frame . The elastomer composition for bathroom products according to claim 1, wherein the soft portion is integrally molded with the base material. 3. The elastomeric composition for bathroom articles according to claim 1 or 2, wherein said bathroom articles are handrails for bathtubs, handrails for bathrooms, shower benches, bathroom chairs, bathtub stands, shower heads or bathroom mats. The elastomer composition for bathroom products according to any one of claims 1 to 3 , wherein said thiabendazole and said pyrithione metal salt are contained in a total of 0.05 to 10 parts by mass based on 100 parts by mass of said thermoplastic elastomer as a whole. thing. 5. The elastomer composition for bathroom products according to claim 1, wherein the molar ratio of said thiabendazole and said pyrithione metal salt is 1/9 to 9/1. 6. The elastomeric composition for bathroom products according to any one of claims 1 to 5 , wherein said thermoplastic elastomer is at least one of a styrene copolymer and an ethylene copolymer. The styrene copolymer is at least one selected from the group consisting of copolymers of vinyl aromatic monomers and diene monomers, and hydrogenated products thereof,
The ethylene-based copolymer is at least one selected from the group consisting of copolymers of vinyl monomers and α-olefin monomers, copolymers of vinyl monomers and α-substituted vinyl monomers, and hydrogenated products thereof. The elastomeric composition for bathroom articles according to claim 6 , wherein the composition is 8. An elastomeric composition for bathroom articles according to any one of claims 1 to 7 , wherein said pyrithione metal salt is at least one of zinc pyrithione and sodium pyrithione. 9. The elastomer composition for bathroom products according to claim 1 , wherein said thiabendazole and said pyrithione metal salt are contained as granules having a volume-based median diameter of 1 to 100 μm. 10. The elastomeric composition for bathroom products according to any one of claims 1 to 9 , which contains an inorganic metallic antibacterial agent. The elastomer composition for bathroom products according to any one of claims 1 to 10 , which does not contain a softening agent and has an A hardness of 20 to 90. 12. The elastomer composition for bathroom products according to any one of claims 1 to 11 , wherein said soft portion is foam-molded. A bathroom article comprising a base material and a soft part integrally molded with the base material,
A bathroom article, wherein the soft portion comprises the elastomer composition for bathroom articles according to any one of claims 1 to 11 . 14. A bathroom article according to claim 13 , wherein said soft portion is foam molded.

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