JP2018016691A - Composition, molding and building material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composition that prevents leakage of a heat storage material and gives a molding having excellent heat storage properties and durability.SOLUTION: A composition contains heat storage particles (A), and water. Relative to the heat storage particles (A) 100 pts.mass, a content of the water is 0.1 pts.mass or more and less than 15 pts.mass. The composition also contains a preservative composed of a compound having an isothiazoline skeleton or a benzisothiazoline skeleton represented by formula (1) (for example, 2-methyl-4-isothiazoline-3-one, 1,2-benzisothiazoline -3-one, or the like).SELECTED DRAWING: None

Description

  The present invention relates to a composition, a molded body produced using the composition, and a building material using the molded body.

  In recent years, in order to increase energy efficiency, the use of heat storage materials for building materials and temperature control systems has been studied. The heat storage material is a material containing a substance having a large heat capacity, and can store heat in the substance and take out the heat as needed. Such a heat storage material is generally a latent heat storage material that stores heat when a substance undergoes a phase change from a solid to a liquid and radiates heat when the phase changes from a liquid to a solid.

  However, when the heat storage material changes the solid-liquid phase and absorbs and releases heat, it is difficult to fix the heat storage material to the member when the heat storage material changes to the liquid phase. As a technique for solving such a problem, a technique in which a heat storage material is encapsulated and used has been actively studied. For example, Patent Documents 1 to 4 disclose capsule-type heat storage particles having a shell portion made of a polymer material and a core portion made of a heat storage material.

International Publication No. 2014/208401 International Publication No. 2015/072579 International Publication No. 2015/122460 International Publication No. 2014/109413

  However, the capsule-type heat storage particles disclosed in Patent Documents 1 to 4 described above have a risk that the heat storage material in the core portion leaks to the outside due to the shell portion being damaged.

  Therefore, some aspects according to the present invention provide a composition that provides a molded article having excellent heat storage characteristics and durability while suppressing leakage of the heat storage material.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following aspects or application examples.

[Application Example 1]
One aspect of the composition according to the present invention is:
A composition containing heat storage particles (A) and water,
The said water is contained 0.1 mass part or more and less than 15 mass parts with respect to 100 mass parts of said thermal storage particles (A), It is characterized by the above-mentioned.

[Application Example 2]
In the composition of Application Example 1,
When differential scanning calorimetry (DSC) is performed on the heat storage particles (A) according to JIS K7121, at least one endothermic peak in a temperature range of −50 to + 180 ° C. can be observed.

[Application Example 3]
In the composition of Application Example 1 or Application Example 2,
The heat storage particles (A) may have an average particle size of 0.1 to 5000 μm.

[Application Example 4]
In the composition of any one of Application Examples 1 to 3,
The heat storage particles (A) may be capsule-type heat storage particles.

[Application Example 5]
In the composition of any one of Application Examples 1 to 4,
Furthermore, a preservative can be contained.

（式（１）中、Ｒ^１は水素原子又は置換もしくは非置換の炭化水素基を表し、Ｒ^２及びＲ^３はそれぞれ独立に、水素原子、ハロゲン原子又は置換もしくは非置換の炭化水素基を表す。）

（式（２）中、Ｒ^４は水素原子又は置換もしくは非置換の炭化水素基を表し、Ｒ^５はそれぞれ独立に水素原子又は有機基を表す。ｎは０〜４の整数を表す。） [Application Example 6]
In the composition of Application Example 5,
The preservative may be at least one selected from the group consisting of a compound represented by the following general formula (1) and a compound represented by the following general formula (2).

(In Formula (1), R ¹ represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group, and R ² and R ³ each independently represent a hydrogen atom, a halogen atom, or a substituted or unsubstituted hydrocarbon group. .)

(In formula (2), R ⁴ represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group, R ⁵ each independently represents a hydrogen atom or an organic group, and n represents an integer of 0 to 4.)

[Application Example 7]
In the composition of Application Example 5 or Application Example 6,
The preservative can be contained in an amount of 0.002 to 0.5 parts by mass with respect to 100 parts by mass of the heat storage particles (A).

[Application Example 8]
One aspect of the molded body according to the present invention is:
The slurry containing the composition of any one of Application Examples 1 to 6 was used as it was or on the surface of a substrate.

[Application Example 9]
One aspect of the building material according to the present invention is:
The molded body of Application Example 8 is used.

  The composition according to the present invention can suppress the heat storage particles (A) from agglomerating excessively and can be easily crushed. For example, when producing a slurry for building materials, leakage of the heat storage material is suppressed, And it becomes easy to obtain a homogeneous slurry. As a result, the molded body produced using the composition according to the present invention has excellent heat storage characteristics and durability.

  Hereinafter, preferred embodiments according to the present invention will be described in detail. It should be understood that the present invention is not limited to only the embodiments described below, and includes various modifications that are implemented without departing from the scope of the present invention. In the present specification, “(meth) acryl-” is a concept encompassing both “acryl-” and “methacryl-”, and “-(meth) acrylate” means “-acrylate” and “-acrylate”. To (methacrylate) ”, and“ (meth) acrylonitrile ”is a concept that encompasses both“ acrylonitrile ”and“ methacrylonitrile ”.

1. Composition The composition according to the present embodiment contains heat storage particles (A) (hereinafter also referred to as “component (A)”) and water, and is based on 100 parts by mass of the heat storage particles (A). The water is contained in an amount of 0.1 to 15 parts by mass. The composition which concerns on this embodiment can be used as a material for producing the molded object which has a thermal storage characteristic. Hereinafter, each component contained in the composition according to the present embodiment will be described in detail.

1.1. Thermal storage particles (A)
The heat storage particles (A) contained in the composition according to the present embodiment are not particularly limited as long as they are particles containing a heat storage material to be described later, but to protect the core portion containing the heat storage material and the core portion. It is preferable that it is a capsule-type heat storage particle which has a shell part formed from these shell materials. A heat storage material to be described later can be suitably used for the core portion of the capsule-type heat storage particles. The shell portion of the capsule-type heat storage particles is preferably an organic material that is less likely to leak the heat storage material contained therein and that is highly flexible. In order to prevent the capsule heat storage particles from deteriorating the heat storage performance per unit volume, it is preferable that the core portion formed by the shell portion is filled with the heat storage material.

1.1.1. Heat storage material The heat storage material is not particularly limited as long as it is a substance that can absorb and release heat, but a latent heat storage material that absorbs and releases heat by phase change during melting and solidification can be preferably used. . Examples of such latent heat storage materials include water, organic compounds, inorganic compounds, and the like.

As an organic compound used as a heat storage material, for example, n-tetradecane (melting point 5 ° C.), n-pentadecane (melting point 9.9 ° C.), n-hexadecane (melting point 18 ° C.), n-heptadecane (melting point 21 ° C.), n-octadecane (melting point 28 ° C.), n-nonadecane (melting point 32 ° C.), n-icosane (melting point 37 ° C.), n-docosan (melting point 46 ° C.), n-tetracosane (melting point 51 ° C.), n-hexacosane (melting point) 57 ° C.), n-octacosane (melting point 62 ° C.), n-triacontane (melting point 66 ° C.), Nippon Seiwa's paraffin wax (melting point 55 ° C.), etc., linear or branched paraffinic hydrocarbons; cetyl alcohol Higher alcohols such as (melting point 51 ° C.); higher fatty acids such as stearic acid (melting point 70 ° C.); erythritol (melting point 121 ° C.), xylitol (melting point 92-9) ° C), dithiothreitol (melting point 42-43 ° C), galactitol (melting point 188-189 ° C), D-iditol (melting point 74-78 ° C), L-iditol (melting point 75-79 ° C), sorbitol (melting point 95) Sugar alcohols such as ° C).

  As an inorganic compound used as a heat storage material, for example, calcium chloride hydrate (melting point 29.7 ° C.), sodium sulfate hydrate (melting point 32.4 ° C.), sodium thiosulfate hydrate (melting point 48 ° C.), Examples thereof include sodium acetate hydrate (melting point: 58 ° C.).

  Among these heat storage materials, an organic compound is preferable because it is easily available and has a wide variety of types and excellent selectivity according to the required heat storage performance. In addition, paraffinic hydrocarbons are more preferable because they have a high heat storage density, do not deteriorate even when the phase change is repeated, and can store heat at various temperatures. These heat storage materials may be used alone or in combination of two or more.

  The heat storage material preferably has a melting point of −50 ° C. to + 180 ° C., and more preferably has a melting point of 0 ° C. to + 80 ° C.

1.1.2. Shell material The shell material refers to a material constituting the shell portion of the capsule-type heat storage particle. The shell material is preferably an organic material such as an ethylene-vinyl alcohol copolymer, a styrene-butadiene copolymer, a (meth) acrylonitrile-butadiene copolymer, a hydrogenated conjugated diene copolymer, a poly (Meth) acrylate, polyolefin, polystyrene, poly (meth) acrylonitrile, polyamide, poly (meth) acrylamide, ethyl cellulose, polyurethane, polyurea, melamine resin, gelatin, carboxymethyl cellulose, gum arabic, or the like can be used. Among these, a melamine resin and polyurethane that can form a shell portion having relatively high strength and excellent airtightness can be preferably used.

  The shell material is preferably a resin obtained by a polyaddition reaction such as polyurethane or polyurea, or a resin obtained by an addition polycondensation reaction such as a melamine resin. For polyurethane and polyurea, the mechanical strength of the shell portion can be adjusted by appropriately selecting the molecular skeleton of the isocyanate compound, polyol compound, and amine compound used as raw materials. For example, when the shell part is formed using a compound having a rigid skeleton having an aromatic ring in the molecule as a raw material, the storage elastic modulus of the shell part increases. Conversely, when the shell part is formed using a compound having a flexible skeleton having a fatty chain in the molecule as a raw material, the storage elastic modulus of the shell part decreases.

  The melamine resin is generally a resin obtained by a reaction between melamine and formaldehyde. A melamine resin can adjust a crosslinking density arbitrarily by using together amine compounds other than melamine and melamine, or using together aldehyde compounds other than formaldehyde and formaldehyde. Melamine is a trifunctional amino compound. For example, when melamine and a bifunctional amino compound are used in combination, the crosslink density of the melamine resin is lowered, so that the storage elastic modulus of the shell portion can be lowered.

  The storage elastic modulus of the shell material is preferably 8000 MPa or less, more preferably 100 MPa or more and 8000 MPa or less, at the melting point of the heat storage material contained in the core part. The storage elastic modulus of the shell material can be obtained by viscoelastic analysis. Specifically, the shell material formed into a film shape can be determined by measuring in a tensile mode using a solid viscoelasticity analyzer RSA III (manufactured by TA Instruments Japan).

Further, the elongation at break at 25 ° C. of the shell material is preferably 20 to 100%. The elongation at break can be measured by carrying out a tensile test based on JIS K7161: 1994 for the wall material resin formed into a film.

1.1.3. Physical properties of heat storage particles (A)
The heat storage particles (A) preferably have at least one endothermic peak in a temperature range of −50 ° C. to + 180 ° C. when measured by differential scanning calorimetry (DSC) according to JIS K7121. The endothermic peak of the heat storage particles (A) is more preferably in the range of −20 ° C. to + 60 ° C.

  When apply | coating to base materials, such as building materials, and drying the composition which concerns on this embodiment, it is normally dried in a temperature environment of about room temperature to 80 degreeC. In this case, it is necessary that the surface layer surface of the heat storage particles (A) is fused and adhered to the adjacent pigment particles or polymer particles at the drying temperature. The presence of at least one endothermic peak in the above range indicates that some phase change occurs at this temperature, and as a result, it is considered to promote fusion that improves the coating film strength.

<Average particle size>
The average particle diameter of the heat storage particles (A) is not particularly limited, but is preferably in the range of 0.1 to 5000 μm, and more preferably in the range of 0.3 to 4000 μm. When the average particle diameter of the heat storage particles (A) is in the above range, the heat storage particles (A) can be prevented from being exposed from the surface of the molded body obtained by molding the composition according to the present embodiment. Thereby, destruction of a thermal storage particle (A) can be prevented.

  In addition, the average particle diameter of the heat storage particles (A) is obtained by measuring the particle size distribution using a particle size distribution measuring apparatus based on the light scattering method, and when the particles are accumulated from small particles, the cumulative frequency of the number of particles is 50. % Particle diameter (D50). Examples of such a particle size distribution measuring apparatus include Coulter LS230, LS100, LS13320 (above, manufactured by Beckman Coulter. Inc), FPAR-1000 (manufactured by Otsuka Electronics Co., Ltd.), and the like. These particle size distribution measuring devices are not intended to evaluate only the primary particles of the heat storage particles (A) but can also evaluate the secondary particles formed by aggregation of the primary particles. Therefore, the particle size distribution measured by these particle size distribution measuring devices can be used as an index of the dispersion state of the heat storage particles (A) contained in the composition.

1.1.4. Manufacturing method of thermal storage particle (A) Thermal storage particle (A) can be produced by a well-known method. For example, a method of drying an emulsion formed from a heat storage material, a polymer material and a surfactant (Japanese Patent Laid-Open No. Sho 62-1452), a method of spraying a thermoplastic resin on the surface of a particulate heat storage material ( JP-A-62-45680), a method of forming a thermoplastic resin in a liquid on the surface of a heat storage material (JP-A-62-149334), a method of polymerizing and coating a monomer on the surface of the heat storage material (special feature) No. 62-225241) or a method of coating a heat storage material with polyamide by an interfacial polycondensation reaction (Japanese Patent Laid-Open No. 2-258052).

1.2. Water The composition according to this embodiment contains 0.1 to 15 parts by mass of water with respect to 100 parts by mass of the heat storage particles (A). The water content is preferably 0.1 parts by mass or more and 14 parts by mass or less, and more preferably 0.1 parts by mass or more and 13 parts by mass or less with respect to 100 parts by mass of the heat storage particles (A). preferable.

By containing water at a ratio in the above range, cracking of the heat storage particles (A) can be effectively suppressed. In particular, when the heat storage particles (A) are capsule-type heat storage particles containing a heat storage material,
By containing the water of the said range, the intensity | strength of a shell part is hold | maintained and the leakage of the heat storage material contained can be suppressed. Moreover, when mixing the composition which concerns on this embodiment with an inorganic filler and producing the slurry for building materials, etc., heat storage particle | grains (A) are aggregated excessively by containing the water of the ratio of the said range. Since it can suppress and crush easily, the leakage of a heat storage material is suppressed and it becomes easy to produce the homogeneous slurry for building materials.

  In order to make the content ratio of water within the above range, the heat storage particles (A) are synthesized by the above method, and then filtered using a filter paper to take out the heat storage particles (A), which are heated at a desired temperature. It can be adjusted by evaporating water.

1.3. Other components The composition which concerns on this embodiment can contain additives other than the heat storage particle (A) mentioned above and water as needed. Examples of such additives include preservatives, thickeners, crosslinking agents, antifoaming agents, film forming aids, antifreezing agents (ethylene glycol, propylene glycol, etc.), pH adjusters (ammonia water, ethanolamine). Etc.), wettability improvers (butyl cellosolve, ethyl cellosolve, etc.) and the like.

<Preservative>
The composition according to this embodiment may contain a preservative. As the antiseptic, for example, various substances used as preservatives (substances of product types 6 to 13 of EU Directive 98/8 / EC) can be used.

  Among these, the preservative is preferably an isothiazoline compound. The isothiazoline-based compound is not particularly limited as long as it is a compound having an isothiazoline skeleton, and specific examples include a compound represented by the following general formula (1) and a compound represented by the following general formula (2).

上記式（１）中、Ｒ^１は水素原子又は炭化水素基であり、Ｒ^２、Ｒ^３はそれぞれ独立に、水素原子、ハロゲン原子又は炭化水素基を表す。Ｒ^１、Ｒ^２、Ｒ^３が炭化水素基である場合、直鎖あるいは分岐鎖のような鎖状の炭素骨格を有していてもよく、環状の炭素骨格を有していてもよく、又はハロゲン原子、アルコキシル基、ジアルキルアミノ基、アシル基、アルコキシカルボニル基等の置換基を有していてもよい。また、炭化水素基の炭素数は１〜１２であることが好ましく、１〜１０であることがより好ましく、１〜８であることが特に好ましい。このような炭化水素基の具体例としては、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、ヘキシル基、シクロヘキシル基、オクチル基、２−エチルヘキシル基等が挙げられる。

In said formula (1), R < ¹ > is a hydrogen atom or a hydrocarbon group, R < ² >, R < ³ > represents a hydrogen atom, a halogen atom, or a hydrocarbon group each independently. When R ¹ , R ² , R ³ are hydrocarbon groups, they may have a linear or branched chain carbon skeleton, a cyclic carbon skeleton, or It may have a substituent such as a halogen atom, an alkoxyl group, a dialkylamino group, an acyl group or an alkoxycarbonyl group. Moreover, it is preferable that carbon number of a hydrocarbon group is 1-12, it is more preferable that it is 1-10, and it is especially preferable that it is 1-8. Specific examples of such a hydrocarbon group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a hexyl group, a cyclohexyl group, an octyl group, and a 2-ethylhexyl group.

上記式（２）中、Ｒ^４は水素原子又は炭化水素基であり、Ｒ^５はそれぞれ独立に水素原子又は有機基を表す。Ｒ^４が炭化水素基である場合、上記式（１）で説明した炭化水素基と同様の炭化水素基であることができる。また、Ｒ^５が有機基である場合、この有機基にはアルキル基やシクロアルキル基である脂肪族基や芳香族基が含まれるが、脂肪族基であることが好ましい。アルキル基の炭素数は１〜１２であることが好ましく、１〜１０であることがより好ましく、１〜８であることが特に好ましい。これらのアルキル基及びシクロアルキル基は、ハロゲン原子、アルコキシル基、ジアルキルアミノ基、アシル基、アルコキシカルボニル基等の置換基を有していてもよい。前記脂肪族基の具体例としては、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、ヘキシル基、シクロヘキシル基、オクチル基、２−エチルヘキシル基等が挙げられる。上記式（２）中、ｎは０〜４の整数を表す。

In the above formula (2), R ⁴ is a hydrogen atom or a hydrocarbon group, R ⁵ each independently represent a hydrogen atom or an organic group. When R ⁴ is a hydrocarbon group, it can be a hydrocarbon group similar to the hydrocarbon group described in the above formula (1). When R ⁵ is an organic group, the organic group includes an aliphatic group or an aromatic group that is an alkyl group or a cycloalkyl group, and is preferably an aliphatic group. The alkyl group preferably has 1 to 12 carbon atoms, more preferably 1 to 10 carbon atoms, and particularly preferably 1 to 8 carbon atoms. These alkyl groups and cycloalkyl groups may have a substituent such as a halogen atom, an alkoxyl group, a dialkylamino group, an acyl group, or an alkoxycarbonyl group. Specific examples of the aliphatic group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a hexyl group, a cyclohexyl group, an octyl group, and a 2-ethylhexyl group. In said formula (2), n represents the integer of 0-4.

  Specific examples of the isothiazoline-based compound include 1,2-benzisothiazolin-3-one, 2-methyl-4,5-trimethylene-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-butyl-benzisothiazolin-3-one, Nn-butyl-1,2-benzisothiazolin-3-one, 2-n-octyl- 4-isothiazolin-3-one, 4,5-dichloro-2-octyl-4-isothiazolin-3-one, and the like can be used, and one or more of these can be used. Among these, 2-methyl-4-isothiazolin-3-one, 2-n-octyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin-3-one, 1,2- It is preferably at least one selected from the group consisting of benzoisothiazolin-3-one.

  It is preferable that the content rate of the preservative in the composition which concerns on this embodiment is 0.002-0.5 mass part with respect to 100 mass parts of thermal storage particles (A), and 0.005-0.2 mass. Part is more preferable, and 0.01 to 0.15 part by mass is particularly preferable. When the content ratio of the preservative in the composition is in the above range, the storage stability of the composition for a long period of time is improved and the strength of the shell portion is suppressed from being reduced, so that the heat storage particles (A) are destroyed. It becomes difficult to happen.

<Thickener>
The composition according to the present embodiment can contain a thickener. By containing a thickener, the fluidity | liquidity of a composition can be controlled and applicability | paintability may improve.

  Examples of the thickener include cellulose compounds such as carboxymethylcellulose, methylcellulose, and hydroxypropylcellulose; ammonium salts or alkali metal salts of the above cellulose compounds; polycarboxylic acids such as poly (meth) acrylic acid and modified poly (meth) acrylic acid Alkali metal salts of the above polycarboxylic acids; polyvinyl alcohol-based (co) polymers such as polyvinyl alcohol, modified polyvinyl alcohol, and ethylene-vinyl alcohol copolymers; unsaturated compounds such as (meth) acrylic acid, maleic acid, and fumaric acid A water-soluble polymer such as a saponified product of a copolymer of carboxylic acid and vinyl ester can be used. Among these, an alkali metal salt of carboxymethyl cellulose, an alkali metal salt of poly (meth) acrylic acid, and the like are particularly preferable.

  Commercially available products of these thickeners include, for example, CMC1120, CMC1150, CMC2200, CMC2280, CMC2450 (manufactured by Daicel Corporation), ASE60 (manufactured by Rohm and Haas), SN612, SN615, SN617, SN618, SN621N (and above, Sannopco). Product), Adecanol UH-420 (manufactured by ADEKA) and the like.

<Crosslinking agent>
The composition according to the present embodiment can contain a crosslinking agent. By containing a crosslinking agent, the shell part of the heat storage particles (A) may be crosslinked. As a result, the resulting molded body is densified to improve strength and impart water resistance to the molded body, which is suitable for long-term outdoor exposure.

  Examples of such a crosslinking agent include hydrazine derivatives, carbodiimide compounds, isocyanate compounds, amino compounds, epoxy compounds, oxazoline compounds, acid anhydrides, aziridine compounds, and the like.

  Examples of hydrazine derivatives include oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, glutaric acid dihydrazide, adipic acid dihydrazide, isophthalic acid dihydrazide, sebacic acid dihydrazide, maleic acid dihydrazide, fumaric acid dihydrazide and itaconic acid hydrazide Dicarboxylic acid dihydrazides containing 10, especially 4 to 6 carbon atoms, and 2-4 such as ethylene-1,2-dihydrazine, propylene-1,3-dihydrazine and butylene-1,4-dihydrazine. Aliphatic water-soluble dihydrazine having one carbon atom.

  Specific examples of the carbodiimide compound include UCARLNK Crosslinker XL-29SE from Union Carbide, Carbodilite E-02, E-03A, E-04, V-02, SV-02, V-02-L2, Nisshinbo Chemical Co., Ltd. V-04, V-10, etc.

  Specific examples of the isocyanate compound include 2,4-tolylene diisocyanate, diphenylmethane-4,4′-diisocyanate, xylylene diisocyanate, isophorone diisocyanate, lysine methyl ester diisocyanate, methylcyclohexyl diisocyanate, trimethylhexamethylene diisocyanate, hexamethylene diisocyanate, n-pentane-1,4-diisocyanate, their trimers, their adducts and biurets, those having two or more isocyanate groups in these polymers, lysine triisocyanate, and further blocked Isocyanates and the like.

  Specific examples of the amino compound include melamine resin, urea resin, guanamine resin, amine adduct, polyamide and the like. Commercially available amino compounds include Cymel manufactured by Mitsui Cytec Co., Ltd., Ancamine manufactured by Air Products, Epilink, Versamine manufactured by Henkel, Versamide, Tormide manufactured by Fuji Chemical Industry Co., Ltd., Fuji Cure, Daiichi General Examples thereof include Versamide manufactured by Japan, Epicure manufactured by Japan Epoxy Resin Co., Ltd., Sanmide manufactured by Sanwa Chemical Co., Ltd., Epomet manufactured by Ajinomoto Co., Inc., and the like.

  Specific examples of the epoxy compound include an epoxy resin, an epoxy-modified silane coupling agent, and the like, and commercially available products include Epicoat, Epirec, Cardlight, Momentive Performance, manufactured by Japan Epoxy Resin Co., Ltd. Examples thereof include Coat Jill 1770 and A-187 manufactured by Materials.

  Specific examples of the oxazoline compound include Epocross K-1010E, Epocross K-1020E, Epocross K-1030E, Epocross K-2010E, Epocross K-2020E, Epocross K-2030E, Epocross WS-500 supplied from Nippon Shokubai Co., Ltd. , Epocros WS-700 and the like.

  Specific examples of the aziridine compound include Chemitite PZ-33 and DZ-22E supplied from Nippon Shokubai Co., Ltd.

  As a method for adding the crosslinking agent, for example, a method in which a crosslinking agent is dissolved or dispersed in water is added to the composition, or a solution in which the crosslinking agent is dissolved in a small amount of a water-soluble organic solvent is added to the composition. The method, the method of adding a crosslinking agent directly to a composition, etc. are mentioned.

<Antifoaming agent>
Examples of the antifoaming agent contained in the composition according to this embodiment include a silicon-based antifoaming agent and a polymer-based antifoaming agent.

2. Slurry By further adding water, an inorganic filler, and other necessary components to the composition according to the present embodiment, a slurry can be obtained. This slurry can be used mainly as a slurry for building materials.

  As a building material slurry, 15 to 80% by mass of water can be contained in 100% by mass of the slurry, preferably 16 to 78% by mass, and more preferably 16 to 76% by mass. However, when the slurry contains an inorganic filler, the content ratio of water in the composition means the content ratio of water in the composition excluding the inorganic filler.

  Examples of the inorganic filler include inorganic oxides such as silicon dioxide, aluminum oxide and calcium oxide; inorganic hydroxides such as aluminum hydroxide and calcium hydroxide; inorganic sulfates such as aluminum sulfate and calcium sulfate; calcium carbonate and the like An inorganic carbonate etc. are mentioned.

  When using the slurry which concerns on this embodiment for a building material, it is preferable that the said inorganic filler is an inorganic porous material. The inorganic porous material refers to an inorganic filler having a plurality of fine pores inside the material.

  Specific examples of the inorganic porous material include diatomaceous mudstone, siliceous shale, allophane, imogolite, sepiolite, zeolite, activated clay, Oya stone, silica gel, etc., and silica gel or activated clay that can be produced as an industrial product. It is preferable to use it. These inorganic porous materials described above can be used properly depending on the required color. For example, when white is required, silica gel or activated clay can be used, and when brown is required, siliceous shale, allophane, or the like can be used.

  In addition, the shape of the inorganic porous material can be selected in a timely manner according to the characteristics required for the target molded article. The shape of the inorganic porous material can be, for example, a particle shape, a flake shape, a needle shape, or a fiber shape.

  When using the slurry which concerns on this embodiment for a building material, if the inorganic filler illustrated above is included, a commercially available building material can be used. Examples of such commercially available building materials include cement, mortar, diatomaceous earth, gypsum, and plaster.

The content of the inorganic filler in the slurry according to this embodiment is 50 parts by mass or more and 99 parts by mass or less when the total content of the heat storage particles (A), the preservative, and the inorganic filler is 100 parts by mass. Is preferably 60 parts by mass or more and 97 parts by mass or less, and particularly preferably 70 parts by mass or more and 95 parts by mass or less. When the content of the inorganic filler is in the above range, it is possible to produce a molded article excellent in moisture absorption / release characteristics, shape stability during moisture absorption / release, and strength balance as a building material.

3. Molded body The molded body according to the present embodiment may be produced by molding the above-mentioned slurry as it is, or may be produced by coating or carrying on the surface of a substrate. Thus, the produced compact contains the above-mentioned heat storage particles (A), water, and optional components added as necessary. The molded body produced using the above method can be preferably used for building materials, in-vehicle materials, mainly ceiling materials for interiors, wall materials, floor materials, storage materials, and the like.

  When forming the above-mentioned slurry as it is to produce a molded body, for example, the above-mentioned slurry is poured into a mold having a desired shape, dried after press molding or extrusion molding, or wet using a papermaking machine. It can be formed by papermaking, directly applied to the base material using a flaw or the like and then dried, or cured by crosslinking the heat storage particles (A) or an antiseptic.

  When the molded body is produced by applying or supporting the above-mentioned slurry on the surface of the base material, the base material is not particularly limited, and examples thereof include base materials such as cement, tile, metal, plastic, and glass. Molded bodies produced by applying or supporting the above-mentioned slurry on the surface of these substrates can be used as a highly durable protective coating material. In addition, the molded body is suitably used as a heat shielding material or anticorrosion material that requires durability and contamination resistance for outdoor use, such as construction, building materials, automobiles, etc., as well as porous materials such as felt, glass, and paper. It can also be suitably used as a material for impregnating a material, a packing material, a protective material for fibers, fabrics and tatami mats.

  The base material can be surface-treated in advance for the purpose of adjusting the foundation, improving adhesion, sealing the porous base material, smoothing, patterning, and the like. Examples of the surface treatment of the metal base material include polishing, degreasing, plating treatment, chromate treatment, flame treatment, coupling treatment, and the like. Examples of the surface treatment for the plastic base material include blast treatment, Chemical treatment, degreasing, flame treatment, oxidation treatment, steam treatment, corona discharge treatment, ultraviolet irradiation treatment, plasma treatment, ion treatment, and the like. Examples of surface treatments for inorganic ceramic base materials include polishing, Examples of the surface treatment for the woody substrate include, for example, polishing, sealing, insect repellent treatment, etc. Examples of the surface treatment for the paper-based substrate include, for example, sealing, Examples of the surface treatment for the deteriorated coating film include kelen and the like.

  There is no particular limitation on the method of applying the slurry to the substrate. Application is, for example, doctor blade method, dipping method, reverse roll method, direct roll method, gravure method, extrusion method, dipping method, brush coating method, spray coating, bar coater, knife coater, screen printing, spin coater, applicator, An appropriate method such as a flow coater, a centrifugal coater, an ultrasonic coater, or flexographic printing can be used.

  Although the amount of the slurry used is not particularly limited, the thickness of the formed body is about 0.5 μm to 1.0 cm in thickness when applied once as a dry film thickness, and is 1.0 μm to thickness when applied twice. More preferably, it is about 2.0 cm.

Although the slurry according to the present embodiment can be directly applied to the surface of the base material, depending on the application, an undercoat (primer) layer such as an epoxy-based, urethane-based, melamine-based, alkyd-based, or the like is applied to the surface of the base material. A coating layer can be formed and used in advance, or an anticorrosion layer such as zinc rich paint can be provided for use.

  The drying method after applying to the surface of the substrate (method for removing water and optionally used non-aqueous medium) is not particularly limited. For example, drying with warm air, hot air, low humidity air; vacuum drying; ) Drying by irradiation with infrared rays, electron beams, etc. The drying speed can be appropriately set so that the liquid medium can be removed as quickly as possible within a speed range in which the coating film does not crack due to stress concentration or the coating film does not peel from the substrate. .

4). EXAMPLES Hereinafter, the present invention will be specifically described based on examples, but the present invention is not limited to these examples. “Part” and “%” in Examples and Comparative Examples are based on mass unless otherwise specified.

4.1. Preparation of thermal storage particles (A) <Synthesis Example 1>
In accordance with International Publication No. 2015/072579, heat storage particles A1 were produced by the following method. Thirty sets of a unit consisting of a 3000 mesh main wire mesh and a 10 mm long, 15 mm inner diameter spacer were inserted into a cylindrical casing having an inner diameter of 20 mm and a length of about 500 mm to obtain an emulsifier. 66.7 parts by mass of n-paraffin-based heat storage material (“TS-8 (trade name)” manufactured by JX Nippon Oil & Energy Corporation, n-octadecane), methacrylonitrile (manufactured by Wako Pure Chemical Industries, Wako Special Grade) 37.5 Part by mass, 37.5 parts by mass of styrene (made by Kishida Chemical Co., Ltd., reagent grade), 25.0 parts by mass of ethylene glycol dimethacrylate (EGDMA) (manufactured by Tokyo Chemical Industry Co., Ltd.) are mixed. O ”(chemical name: 1,1,3,3-tetramethylbutylperoxy-2-ethylhexanoate) 1.4 parts by mass, and thiocalcol 20 (chemical name: n-dodecyl mercaptan) manufactured by Kao Corporation The oil phase mixture containing 0 parts by mass is added with a dispersant aqueous solution (PVA217EE made by Kuraray, 2 parts by weight), and each of the above oil phase mixtures is added by an individual plunger pump. Of 30g / min finely dispersed aqueous solution, respectively, the emulsion was carried by introducing the emulsifying device at 60 g / min flow rate to afford the O / W type emulsion.

  In a container equipped with a stirrer, a pressure gauge, and a thermometer, 60 parts by mass of the O / W emulsion obtained by the above operation and 40 parts by mass of distilled water were charged, the inside of the polymerization vessel was decompressed, Deoxygenation was performed, the pressure was returned to normal pressure with nitrogen, and the pressure was increased to 0.3 MPa with nitrogen. With the stirrer rotated, the temperature inside the polymerization tank was raised to 110 ° C. to initiate polymerization. The polymerization was completed in 2 hours, and the polymerization tank internal temperature was cooled to room temperature. The liquid after polymerization was filtered with filter paper to produce heat storage particles A1. About the obtained heat storage particles A1, the volume-based volume average particle diameter (median diameter) measured using a laser diffraction / scattering particle size distribution measuring device (manufactured by Microtrack Bell, MT-3300) is 0.5 μm. Met.

<Synthesis Example 2>
In accordance with International Publication No. 2015/122460, heat storage particles A2 were produced by the following method. 5 g of xylitol and 0.1 g of polyvinyl alcohol (manufactured by Wako Pure Chemical Industries, Ltd., average polymerization degree 1500) are put into a 100 mL tall beaker, and silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF-96-100cs, viscosity 100 cs). (25 ° C.)) 30 g was put into a 300 mL beaker, and these were heated separately by a hot stirrer at 155 ° C. to bring xylitol into a molten state. Silicone oil was transferred to a 100 mL tall beaker in which molten xylitol was retained, and stirred at 1200 rpm for 10 minutes to obtain an emulsion in which molten xylitol fine droplets were dispersed in silicone oil.

Slow cooling at room temperature while continuing to stir, and after the emulsion temperature drops to 100 ° C., applying ultrasonic waves with an ultrasonic homogenizer at an output of 50 W for 5 minutes allows the spherical xylitol fine particles to be refined to 100 μm or less. Generated. Then, an emulsion prepared by adding 2.5 g of ethyl-2-cyanoacrylate (manufactured by Wako Pure Chemical Industries, Ltd.) and 15 g of silicone oil in a 100 mL beaker and stirring for 10 minutes at 800 rpm is used to prepare the xylitol fine particles. Placed in liquid containing. As a result, when ethyl-2-cyanoacrylate comes into contact with the xylitol fine particles dispersed in the silicone oil, a polymerization reaction starts to form a film on the surface of the fine particles, thereby producing heat storage particles A2 in which the xylitol fine particles are encapsulated. . The liquid after polymerization was filtered with filter paper to obtain heat storage particles A2. About the obtained heat storage particle A2, when the volume average particle diameter (median diameter) was measured in the same manner as in Synthesis Example 1, it was 100 μm.

<Synthesis Example 3>
Dissolve ethylene-vinyl alcohol copolymer (manufactured by Kuraray Co., Ltd., “Ethylene-vinyl alcohol copolymer EVAL G156B”) in a mixed solvent consisting of water and methanol (water: methanol = 50: 50 (weight ratio)). As a result, a shell-forming composition in the form of a solution having a concentration of 15% by mass was prepared. A vibration dropping apparatus having a concentric double nozzle (manufactured by Büch) was passed through a shell forming composition through an outer nozzle, and an n-octadecane (manufactured by Sasol German GmbH, “PARAFOL18-97”) was passed through the inner nozzle. The droplets are formed while the nozzle is vibrated at a frequency of 1,000,000 times / minute, and are dropped into a coagulating liquid composed of water whose temperature is adjusted to 5 ° C., whereby the heat storage particles A3 containing n-octadecane are obtained. Produced. The liquid after polymerization was filtered with filter paper to obtain heat storage particles A3. With respect to the obtained heat storage particle A3, the volume average particle diameter (median diameter) was measured in the same manner as in Synthesis Example 1, and it was 1500 μm.

<Synthesis Example 4>
A heat storage particle A4 was produced by the same method except that the frequency of Synthesis Example 3 was changed to 6000 times / minute.
The obtained heat storage particles A4 were measured for volume average particle diameter in the same manner as in Synthesis Example 1, and found to be 3000 μm.

4.2. Example 1
4.2.1. Preparation of Composition To 100 parts by mass of heat storage particles A1 obtained in Synthesis Example 1 above, 300 parts by mass of water and 0.05 part by mass of 2-methyl-4-isothiazolin-3-one as a preservative are added, and a stirrer ( An aqueous dispersion of the composition was obtained by stirring at 200 rpm for 5 minutes using Mazela NZJ-1200 EYELA). After filtering this water dispersion, it dried at 80 degreeC and atmospheric pressure so that it might become the moisture content described in Table 1, and produced the powdery composition. The water content was evaluated by the weight loss when the composition was heated at 110 ° C. for 15 minutes.

4.2.2. Composition evaluation method <Evaluation of cracking>
About the powdery composition obtained above, it observes by magnifying 100 times with a digital microscope (Keyence Co., Ltd. make, digital microscope VHX-900), and the shape of 500 heat storage particles (A) arbitrarily. Was observed. When cracking of the heat storage particles is observed, the heat storage material contained therein leaks and stable heat storage characteristics cannot be obtained. Therefore, the evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
○: No cracking of heat storage particles is observed.
X: Cracking of one or more heat storage particles is observed.

<Crushability evaluation>
About the powdery composition obtained above, it left still in air | atmosphere at 60 degreeC for 3 days. Thereafter, the state of aggregation of the heat storage particles (A) and the ease of crushing were observed during the production of a slurry to be described later using the heat storage particles (A) after being left. The evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
○: Aggregation of the heat storage particles is not recognized, or the aggregated heat storage particles can be easily crushed and a homogeneous slurry can be produced.
X: Aggregation of heat storage particles is observed, crushing is poor, and uniform dispersion is difficult.

<Evaluation of endothermic temperature>
The endothermic temperature of the heat storage particles (A) is approximately equal to the endothermic temperature of the composition obtained by removing water. Therefore, the endothermic temperature of the composition excluding water was estimated as the endothermic temperature of the heat storage particles (A) and evaluated. The composition was dried at room temperature for 3 days to remove water, thereby preparing a dry composition. After weighing 10 mg of the dry composition in a sample pan, the lid is capped to make a measurement sample, and after holding at 180 ° C. for 3 minutes using a differential scanning calorimeter (DSC, manufactured by NETZSCH, DSC 204 F1 Phoenix) The sample was cooled from 180 ° C. to −50 ° C. at a rate of 10 ° C./min, held at −50 ° C. for 5 minutes, and then heated from −50 ° C. to 180 ° C. at a rate of 10 ° C./min. The endothermic temperature was read from the obtained DSC chart. The required endothermic temperature varies depending on the purpose of use of the molded body, but when used for building materials, it is necessary to absorb heat at least in a specific temperature range. For this reason, the evaluation criteria were as follows, A and B where the endothermic peak was observed were judged as good, and C where no endothermic peak was observed was judged as bad. The evaluation results are also shown in Table 1.
A: An endothermic peak is observed between −50 ° C. and 100 ° C.
B: An endothermic peak is observed above 100 ° C. and below 180 ° C.
C: No endothermic peak is observed.

<Septic test>
In general, the composition is stored in large quantities for use in the factory where the molded body is made. And the composition stored in large quantities is consumed sequentially as needed. When bacteria and the like are propagated during storage of the composition, agglomeration is likely to occur, and a molded product produced using such a composition becomes inhomogeneous, which may deteriorate crack resistance and weather resistance of the molded product. This is not preferable.

  In addition, the composition may be stored for a long period (several months to several years). For this reason, even if it is a case where the composition stored for a long period of time is used, performance, such as a weather resistance of the molded object obtained, needs to become constant. Therefore, if the molded product produced using the composition after long-term storage shows performance comparable to the molded product produced using the composition immediately after preparation, the long-term storage stability is good. Judgment can be made.

To 100 g of the composition prepared above, 5 g of the bacterial solution was added and stored at 35 ° C. for 2 weeks. Thereafter, 5 g of the bacterial solution was further added and stored at 35 ° C. for 2 months. The number of bacteria in this composition was measured using a commercially available “EASICULT TTC” (Orion Diagnostics, Finland: Finland) at 28 ° C. for 48 hours in an incubator. Determined by comparison with the table. Incidentally, the heat storage particles A1 obtained above containing 200 parts by weight (i.e., containing no preservative) to the composition, allowed to rot by adding Comamonas acidovorans as an indicator bacterium, the number of bacteria 10 ⁷ cells / ml The resulting composition was used as a bacterial solution.

Here, the composition having excellent storage stability has a small number of bacteria. The number of bacteria is preferably 0 / ml. However, when a molded body is produced, it is acceptable if the number of bacteria is up to 10 ⁴ / ml, and if the number of bacteria is less than 10 ³ / ml, A stable molded article can be produced stably. However, if the number of bacteria is greater than 10 ⁴ / ml, the more the foreign material caused by bacteria, it is impossible to manufacture a homogeneous molded article, the productivity of the molded article is lowered. Therefore, up to 10 ⁴ cells / ml as the threshold of the number of bacteria is considered to be a good range. Therefore, the evaluation criteria were as follows. The evaluation results are also shown in Table 1.
○: Excellent when the number of bacteria is less than 10 ³ / ml.
Δ: Good when the number of bacteria is 10 ³ / ml or more and less than 10 ⁴ / ml.
×: when the number of bacteria is 10 ⁴ cells / ml or more, impossible.

4.2.3. Production of Molded Body In the composition prepared above, 295 parts by mass of water and 400 parts by mass of diatomaceous earth (made by Shikoku Kasei Kogyo Co., Ltd., trade name “Keiso Modern Coat Interior”) with respect to 100 parts by mass of heat storage particles A1. In addition, a slurry was prepared by stirring for 2 minutes at 700 rpm using a hand mixer (TL-11 manufactured by Tomono Seiki Co., Ltd.). Subsequently, the obtained slurry was applied on a gypsum board having a width of 10 cm × 10 cm so as to have a thickness of 3 mm, and cured in an atmosphere of 23 ° C. and 50% RH, thereby producing a molded body (building material).

4.2.4. Evaluation method of molded body <Evaluation of shape stability>
The shape of the molded body produced above was observed visually. When the heat storage material leaks, the molded body is likely to be deformed before and after curing in a 23 ° C. and 50% RH atmosphere. Therefore, the evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
○: Deformation is not observed in the molded body.
(Triangle | delta): Although a deformation | transformation is recognized by a molded object, it can be used.
X: The molded body is deformed and cannot be used.

<Evaluation of bleeding>
The test was performed by placing the molded body in a thermostat programmed to repeat the cycle consisting of the following i) to iv) 100 times.
i) A degreased paper is laid and a molded body is placed thereon.
ii) Maintain for 30 minutes at a temperature 20 ° C. higher than the endothermic temperature of the heat storage material.
iii) Cooling to −20 ° C. at a cooling rate of 2 ° C./min.
iv) Maintain at -20 ° C for 30 minutes.
v) The temperature is raised to a temperature 20 ° C. higher than the endothermic peak temperature at a rate of temperature rise of 2 ° C./min.
After the molded product after 100 cycles was taken out and sufficiently cooled, the condition of the heat storage material soaking into the degreased paper was confirmed. The evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
○: No leakage of the heat storage material is observed, and the bleed resistance is very good.
Δ: A slight leakage of the heat storage material was observed, but the bleed resistance was good.
X: Leakage of the heat storage material is clearly recognized and the bleed resistance is poor.

<Evaluation of heat storage characteristics>
The molded body produced as described above was maintained at a temperature 10 ° C. higher than the endothermic temperature measured in the above <Evaluation of endothermic temperature> for 10 minutes. Thereafter, the molded body was placed on a hot plate set at a temperature 10 ° C. lower than the endothermic temperature measured in the above <Evaluation of endothermic temperature>, and the temperature change of the molded body was measured. When the heat storage particles (A) are not destroyed during the preparation of the composition and the heat storage material does not leak, a temperature holding time in the vicinity of the melting temperature, which is a heat storage characteristic, appears. Therefore, the evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
○: Temperature retention time is observed and heat storage characteristics are good.
X: The temperature holding time cannot be observed, and the heat storage characteristics are poor.

<Durability evaluation>
About the molded object produced above, the following water resistance evaluation and moisture resistance evaluation were performed. The evaluation method and evaluation criteria are as follows, and the evaluation results are also shown in Table 1.
(1) Evaluation of water resistance After the molded body produced above was immersed in warm water at 50 ° C. for 24 hours, the degree of swelling of the coating film was visually observed to confirm the stickiness and cracks on the coating film surface.
(2) Evaluation of moisture resistance The molded body produced above was allowed to stand for 6 hours in an atmosphere of 50 ° C. and 98% RH, and then dried in an atmosphere of 50 ° C. for 18 hours. After this operation was repeated three times, the surface of the molded body was observed, and stickiness and cracks on the surface of the molded body were confirmed.
○: Surface stickiness and cracks are not observed in any evaluation.
Δ: Slight surface stickiness and cracks were observed in any one of the evaluations.
X: Surface stickiness and cracks were observed in any one or both evaluations.

<Evaluation of composition after long-term storage>
The composition prepared above was filled with 1000 g of polyvin and stored in a refrigerator set at 25 ° C. for 5 months. Except that this composition after storage was used, a molded body was prepared in the same manner as described above, and in the same manner as described above, the shape stability, bleeding property, heat storage property, and durability were evaluated. The evaluation results are also shown in Table 1.

4.3. Examples 2 to 19 and Comparative Examples 1 to 4
In the same manner as in Example 1 except that the drying time of the heat storage particles (A) at 80 ° C. and atmospheric pressure was changed so as to obtain the moisture content described in Tables 1 and 2, Examples 2 to 19 and The water content of the compositions of Comparative Examples 1 to 4 was controlled. A composition was prepared in the same manner as in Example 1 except that the heat storage particles (A) and the preservatives were added as shown in Tables 1 and 2. Thereafter, a slurry was prepared in the same manner as in Example 1 except that the amount of water to be added and the type of inorganic filler were as described in Tables 1 and 2. About the molded object produced using the obtained slurry, it evaluated similarly to the said Example 1. FIG. The evaluation results are also shown in Tables 1 and 2.

4.4. Evaluation Results Tables 1 and 2 below show the evaluation results of the examples and comparative examples.

Abbreviations of each component in Table 1 and Table 2 represent the following compounds, respectively. Moreover, "-" in Table 1 and Table 2 represents that the corresponding component is not contained.
<Heat storage particles (A)>
A1: heat storage particles produced in Synthesis Example 1 A2: heat storage particles produced in Synthesis Example 2 A3: heat storage particles produced in Synthesis Example 3 A4: produced in Synthesis Example 4 Thermal storage particles <preservatives>
B1: 2-methyl-4-isothiazolin-3-one B2: 2-n-octyl-4-isothiazolin-3-one B3: 5-chloro-2-methyl-4-isothiazolin-3-one B4 : 1,2-benzisothiazolin-3-one <inorganic filler>
・ Diatomaceous earth: Shikoku Kasei Kogyo Co., Ltd., trade name “Keiso Modern Court Interior”
・ Stucco: Shikoku Kasei Kogyo Co., Ltd., trade name “Neo plaster”
・ Gypsum: San-S Gypsum Co., Ltd., trade name “Gypstone L”

  As is apparent from Table 1 and Table 2, the compositions according to the present invention shown in Examples 1 to 19 were excellent in crack resistance and crushability. For this reason, it turned out that the molded object produced using the composition of Examples 1-19 is excellent in all the characteristics of shape stability, bleed property, a thermal storage characteristic, and durability. Moreover, the compositions of Examples 1 to 19 were not easily spoiled and were excellent in stability after long-term storage. Therefore, it was found that the molded bodies produced using the compositions of Examples 1 to 19 after long-term storage were also excellent in any of shape stability, bleed properties, heat storage characteristics and durability. .

  The present invention is not limited to the above embodiment, and various modifications can be made. The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). The present invention also includes a configuration in which a non-essential part of the configuration described in the above embodiment is replaced with another configuration. Furthermore, the present invention includes a configuration that achieves the same effects as the configuration described in the above embodiment or a configuration that can achieve the same object. Furthermore, the present invention includes a configuration obtained by adding a known technique to the configuration described in the above embodiment.

Claims (9)

A composition containing heat storage particles (A) and water,
The composition which contains the said water 0.1 mass part or more and less than 15 mass parts with respect to 100 mass parts of said thermal storage particles (A).   The endothermic peak in a temperature range of -50 to + 180 ° C is observed when differential scanning calorimetry (DSC) is performed on the heat storage particles (A) in accordance with JIS K7121. Composition.   The composition of Claim 1 or Claim 2 whose average particle diameter of the said thermal storage particle (A) is 0.1-5000 micrometers.   The composition according to any one of claims 1 to 3, wherein the heat storage particles (A) are capsule-type heat storage particles.   Furthermore, the composition as described in any one of Claims 1 thru | or 4 containing antiseptic | preservative. The composition according to claim 5, wherein the preservative is at least one selected from the group consisting of a compound represented by the following general formula (1) and a compound represented by the following general formula (2).

(In Formula (1), R ¹ represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group, and R ² and R ³ each represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted hydrocarbon group.)

(In formula (2), R ⁴ represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group, R ⁵ each independently represents a hydrogen atom or an organic group, and n represents an integer of 0 to 4.)   The composition of Claim 5 or Claim 6 which contains 0.002-0.5 mass part of said preservatives with respect to 100 mass parts of said thermal storage particles (A).   The molded object produced as it is or on the surface of the base material using the slurry containing the composition as described in any one of Claims 1 thru | or 7.   A building material using the molded article according to claim 8.