Fire-resistant resin composition, fire-resistant material, fire-resistant laminate, compartment penetration treatment structure, and compartment penetration treatment method

Abstract

To provide a fire-resistant resin composition which allows a heat conductive member used in a fire-proof structure of a building to efficiently exhibit fire-resistant performance and fire-extinction performance and can obtain uniform fire resistance and fire extinction properties, a fire-resistant material, a fire-resistant laminate, a partition penetration processing structure, and a partition penetration processing method.SOLUTION: A fire-resistant resin composition contains at least one fire-resistant additive selected from the group consisting of a flame retardant, a heat absorbing agent and a thermally expansive laminar inorganic substance, a heat conductive substance, metal particles and a resin, and is used in a fire-proof structure of a building.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a fire-resistant resin composition, a fire-resistant material, a fire-resistant laminate, a compartment penetration treatment structure, and a compartment penetration treatment method, all of which are used in fire prevention structures for buildings. [Background technology]

[0002] In buildings such as apartment buildings, office buildings, and schools, compartment penetrations are often installed in partitions such as walls to allow the passage of long objects such as cables and pipes. Compartment penetrations are required to be constructed with fire prevention measures (fireproof structures) to prevent the spread of fire to other compartments in the event of a fire in one compartment. Partitions are generally hollow walls, consisting of two walls with a hollow space between them.

[0003] As a method for making a compartment penetration part fireproof, for example, a method is known in which fireproof putty is filled into the gap between the long penetrator and the penetration hole (see, for example, Patent Document 1). Also, a method has been proposed in which the gap between the penetrator and the through-hole is filled with an irregular filler such as a fireproof pack in which fireproof putty is packed inside a bag (see, for example, Patent Document 2). When an irregular filler is used, it is common to use a product that is a kit of a fireproof pack or sleeve in which a predetermined amount of fireproof putty is packed inside a bag. Furthermore, to facilitate the installation of fire-resistant putty or amorphous filler, a tubular member (sleeve) or a receiving portion for receiving the fire-resistant putty may be provided between the inside of the through hole of each wall section and the inserting body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6348320 [Patent Document 2] Patent No. 6150933 Summary of the Invention [Problem to be solved by the invention]

[0005] However, it is difficult to achieve a consistent density of fill with fireproof putty, resulting in variations in the finished product depending on the worker. Furthermore, the penetration holes in compartment penetrations in buildings can have deviations from the specified dimensions, and kit products for specified dimensions, such as fireproof packs, may not be able to properly seal the compartment penetrations because the volume of the fireproof packs is constant. In other words, when using conventional fireproof materials such as fireproof putty or shapeless fillers, the filling can be incomplete, and uniform fire resistance and fire extinguishing properties cannot be obtained as a fireproof structure for compartment penetrations. Furthermore, even when the compartment penetration is properly sealed, the materials used to make the compartment penetration a fireproof structure vary in thermal conductivity, and materials with insufficient thermal conductivity are unable to efficiently conduct the heat generated in the event of a fire, and therefore do not exhibit fire resistance and fire extinguishing performance, meaning that uniform fire resistance and fire extinguishing performance cannot be obtained as a fireproof structure for the compartment penetration.

[0006] Therefore, an object of the present invention is to provide a fire-resistant resin composition, a fire-resistant material, a fire-resistant laminate, a compartment penetration treatment structure, and a compartment penetration treatment method that enable highly thermally conductive components used in the fire prevention structure of a building to efficiently exhibit fire resistance and fire extinguishing performance and obtain uniform fire resistance and fire extinguishing properties. [Means for solving the problem]

[0007] The present invention is summarized as follows [1] to

[13] . [1] A fire-resistant resin composition used in the fire prevention structure of buildings, comprising at least one fire-resistant additive selected from the group consisting of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material, a thermally conductive material, metal particles, and a resin. [2] The fire-resistant resin composition according to [1], wherein the content of the metal particles is 100 to 1,500 parts by mass per 100 parts by mass of the resin. [3] The fire-resistant resin composition according to [1] or [2], wherein the content of the metal particles is 1 to 1,000 parts by mass per 100 parts by mass of the thermally conductive material. [4] The fire-resistant resin composition according to any one of [1] to [3], wherein the thermally conductive material is at least one selected from the group consisting of boron nitride, aluminum oxide, and expanded graphite. [5] The fire-resistant resin composition according to any one of [1] to [4], wherein the metal particles are at least one selected from the group consisting of aluminum particles, stainless steel particles, tungsten particles, zinc particles, duralumin particles, magnesium particles, molybdenum particles, beryllium particles, calcium particles, gold particles, silver particles, and copper particles. [6] A fire-resistant material comprising the fire-resistant resin composition according to any one of [1] to [5]. [7] The fire-resistant material according to [6], which is in sheet form. [8] The fireproof material according to [7], having a thickness of 0.5 to 10 mm. [9] A fire-resistant laminate used in the fire prevention structure of a building, comprising a fire-resistant resin layer containing at least one fire-resistant additive selected from the group consisting of flame retardants, heat-absorbing agents, and thermally expandable layered inorganic materials, and a resin, and a heat-conductive layer containing a thermally conductive material, metal particles, and a resin.

[10] The fire-resistant laminate according to [9], which is in the form of a sheet.

[11] The fire-resistant laminate according to

[10] , which has a thickness of 0.5 to 10 mm.

[12] A compartment penetration structure formed in a partition of a building, in which a compartment penetration section through which a long penetrating body is inserted has a fireproof structure, wherein at least one of the fire-resistant materials described in [6] to [8] and the fire-resistant laminates described in [9] to

[11] is provided in the compartment penetration section.

[13] A compartment penetration treatment method for making a compartment penetration portion formed in a partition of a building and having a fireproof structure, through which a long penetrating body is inserted, the method comprising the step of providing at least one of the fire-resistant material described in [6] to [8] and the fire-resistant laminate described in [9] to

[11] in the compartment penetration portion. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a fire-resistant resin composition, a fire-resistant material, a fire-resistant laminate, a compartment penetration treatment structure, and a compartment penetration treatment method that enable highly thermally conductive components used in the fire prevention structure of a building to efficiently exhibit fire resistance and fire extinguishing performance and obtain uniform fire resistance and fire extinguishing properties. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a cross-sectional view showing a compartment penetration structure according to a first embodiment of the present invention. [Figure 2] FIG. 4 is a cross-sectional view showing a compartment penetration structure according to a second embodiment of the present invention. [Figure 3] FIG. 10 is a cross-sectional view showing a compartment penetration structure according to a third embodiment of the present invention. [Figure 4] FIG. 10 is a cross-sectional view showing a compartment penetration structure according to a fourth embodiment of the present invention. [Figure 5] FIG. 10 is a cross-sectional view showing a compartment penetration structure according to a fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention will be described in detail below. [Fireproof resin composition] The fire-resistant resin composition of the present invention contains at least one fire-resistant additive selected from the group consisting of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material, a thermally conductive material, metal particles, and a resin, and is used in fire-resistant structures for buildings. The fire-resistant resin composition of the present invention contains a thermally conductive substance, and when heated by a fire in a building or the like, the fire-resistant resin composition can conduct and dissipate heat, thereby suppressing ignition or extinguishing the fire if it does ignite.

[0011] <Resin> Examples of the resin in the present invention include thermoplastic resins, thermosetting resins, and elastomer resins.

[0012] Examples of thermoplastic resins include synthetic resins such as polyolefin resins, polyester resins such as polyethylene terephthalate, polystyrene resins, acrylonitrile-butadiene-styrene (ABS) resins, polyvinyl acetal resins, polyvinyl alcohol resins, polycarbonate resins, polyphenylene ether resins, acrylic resins, polyamide resins, polyvinyl chloride resins (PVC), novolac resins, polyurethane resins, and polyisobutylene.

[0013] Examples of thermosetting resins include synthetic resins such as epoxy resins, urethane resins, phenolic resins, urea resins, melamine resins, unsaturated polyester resins, and polyimides.

[0014] Examples of elastomer resins include acrylonitrile butadiene rubber (NBR), ethylene-propylene-diene rubber (EPDM), ethylene-propylene rubber, natural rubber, polybutadiene rubber, polyisoprene rubber, styrene-butadiene block copolymer, hydrogenated styrene-butadiene block copolymer, hydrogenated styrene-butadiene-styrene block copolymer, hydrogenated styrene-isoprene block copolymer, and hydrogenated styrene-isoprene-styrene block copolymer. In the present invention, one of these resins may be used alone, or two or more of them may be used in combination.

[0015] When the fire-resistant resin composition is used as a fire-resistant sheet, which will be described later, the resin is preferably at least one selected from polyvinyl chloride resin, polyolefin resin, polyvinyl acetal resin, acrylic resin, and epoxy resin. Among these, polyvinyl chloride resin and polyolefin resin are preferred from the viewpoint of ensuring moldability by extrusion molding. Furthermore, from the viewpoint of easily ensuring moldability and mechanical strength such as tensile strength even when a relatively large amount of metal particles, thermally conductive substances, etc. are blended, at least one selected from polyvinyl acetal resins and acrylic resins is more preferred, and polyvinyl acetal resins are even more preferred.

[0016] The melt flow rate of the thermoplastic resin, such as polyvinyl chloride resin or polyolefin resin, is preferably 1.0 g / 10 min or more. When the melt flow rate of the thermoplastic resin is 1.0 g / 10 min or more, the dispersibility of metal particles, thermally conductive materials, and fire-resistant additives is improved, and even when these are incorporated in large amounts, good sheet formability can be maintained in extrusion molding or the like. The melt flow rate is more preferably 2.4 g / 10 min or more, even more preferably 10 g / 10 min or more, and even more preferably 20 g / 10 min or more. By adjusting the melt flow rate to be equal to or greater than these lower limits, the dispersibility of metal particles, thermally conductive materials, fire-resistant additives, etc. is improved, making it easier to incorporate these in larger amounts. The melt flow rate of the thermoplastic resin is preferably 40 g / 10 min or less, and more preferably 35 g / 10 min or less. The melt flow rate was measured in accordance with JIS K 7210-2:1999 under conditions of 190°C and a load of 2.16 kg.

[0017] <Polyvinyl chloride resin> The polyvinyl chloride resin may be a vinyl chloride homopolymer or a vinyl chloride copolymer, which is a copolymer of vinyl chloride and a monomer having an unsaturated bond copolymerizable with vinyl chloride and contains 50% by mass or more of structural units derived from vinyl chloride. Examples of monomers having an unsaturated bond copolymerizable with vinyl chloride include vinyl esters such as vinyl acetate and vinyl propionate, acrylic acid, methacrylic acid, acrylic acid esters such as methyl acrylate and ethyl acrylate, methacrylic acid esters such as methyl methacrylate and ethyl methacrylate, olefins such as ethylene and propylene, aromatic vinyls such as acrylonitrile and styrene, and vinylidene chloride. The polyvinyl chloride resin may also be a polychlorinated vinyl chloride resin obtained by chlorinating a vinyl chloride homopolymer or a vinyl chloride copolymer. The polyvinyl chloride resin may be used alone or in combination of two or more of the above-mentioned resins. may be used in combination.

[0018] <Polyolefin resin> Examples of polyolefin resins include polypropylene resin, polyethylene resin, poly(1-)butene resin, polypentene resin, and ethylene-vinyl acetate copolymer (EVA) resin, and among these, ethylene-vinyl acetate copolymer (EVA) resin is preferred. The ethylene-vinyl acetate copolymer resin may be a non-crosslinked ethylene-vinyl acetate copolymer resin or a high-temperature crosslinked ethylene-vinyl acetate copolymer resin. Furthermore, modified ethylene-vinyl acetate resins such as saponified ethylene-vinyl acetate copolymer and hydrolyzed ethylene-vinyl acetate may also be used as the ethylene-vinyl acetate copolymer resin. The ethylene-vinyl acetate copolymer resin preferably has a vinyl acetate content of 10 to 50 mass%, more preferably 25 to 45 mass%, as measured in accordance with JIS K 6730:1995 "Testing Methods for Ethylene-Vinyl Acetate Resins." By adjusting the vinyl acetate content to these lower limits or higher, adhesion to additives such as thermally expandable layered inorganic materials is improved. Furthermore, by adjusting the vinyl acetate content to these upper limits or lower, the mechanical strength, such as breaking strength, of a fire-resistant material made from the fire-resistant resin composition is improved.

[0019] <Polyvinyl acetal resin> The polyvinyl acetal resin is not particularly limited as long as it is a polyvinyl acetal resin obtained by acetalizing polyvinyl alcohol with an aldehyde, but polyvinyl butyral resin (PVB) is preferred. By using a polyvinyl butyral resin, it is possible to increase the mechanical strength even when the amount of resin in the fire-resistant resin composition is relatively small. Therefore, even if the thickness of the fire-resistant material made of the fire-resistant resin composition is reduced, a certain level of mechanical strength can be ensured. The amount of hydroxyl groups in the polyvinyl acetal resin is preferably 20 to 40 mol%. By setting the amount of hydroxyl groups to 20 mol% or more, the polarity of the polyvinyl acetal resin is increased, and the adhesive strength to metal particles, thermally conductive materials, fire-resistant additives, etc. is strengthened, which facilitates improving the mechanical strength of a fire-resistant material made from the fire-resistant resin composition. Furthermore, by setting the amount of hydroxyl groups to 40 mol% or less, the fire-resistant material made from the fire-resistant resin composition is prevented from becoming too hard, which would result in a decrease in mechanical strength such as tensile strength. The amount of hydroxyl groups is more preferably 22 mol% or more. Furthermore, the amount of hydroxyl groups is more preferably 37 mol% or less, even more preferably 35 mol% or less, and even more preferably 33 mol% or less.

[0020] The degree of acetalization of the polyvinyl acetal resin is preferably 40 to 80 mol%. By setting the degree of acetalization within this range, the amount of hydroxyl groups can be set within a desired range, and the mechanical strength of a fire-resistant material made from the fire-resistant resin composition can be easily improved. The degree of acetalization is more preferably 55 mol% or more, even more preferably 65 mol% or more, still more preferably 67 mol% or more, and more preferably 76 mol% or less. The polyvinyl acetal resin preferably has an acetyl group content of 0.1 to 30 mol%. When the acetyl group content is within this range, moisture resistance is excellent, and the mechanical strength of a fire-resistant material made from the fire-resistant resin composition is likely to be improved by keeping the hydroxyl group content within the desired range. From these viewpoints, the acetyl group content is more preferably 0.2 mol% or more, even more preferably 0.5 mol% or more, and more preferably 15 mol% or less, even more preferably 7 mol% or less. The degree of acetalization, the amount of hydroxyl groups, and the amount of acetyl groups can be measured and calculated, for example, by a method in accordance with JIS K 6728:1977 "Testing methods for polyvinyl butyral."

[0021] The degree of polymerization of the polyvinyl acetal resin is preferably 200 to 3,000. By setting the degree of polymerization within this range, metal particles, thermally conductive materials, fire-resistant additives, etc. can be appropriately dispersed in the fire-resistant resin composition. The degree of polymerization is more preferably 250 or higher, and even more preferably 300 or higher. Lowering the degree of polymerization of the polyvinyl acetal resin also reduces the viscosity, making it easier to disperse metal particles, thermally conductive materials, fire-resistant additives, etc. in the fire-resistant resin composition, and improving the mechanical strength of products made from the fire-resistant resin composition. From this perspective, the degree of polymerization of the polyvinyl acetal resin is more preferably 1,500 or less, even more preferably 1,000 or less, and even more preferably 900 or less. The degree of polymerization of the polyvinyl acetal resin refers to the viscosity average degree of polymerization measured based on the method described in JIS K 6728:1977.

[0022] The viscosity of the polyvinyl acetal resin in 10% by mass ethanol / toluene is preferably 5 mPa·s or more, more preferably 10 mPa·s or more, and even more preferably 15 mPa·s or more. The viscosity of the polyvinyl acetal resin in 10% by mass ethanol / toluene is preferably 500 mPa·s or less, more preferably 300 mPa·s or less, and even more preferably 200 mPa·s or less. By adjusting the viscosity of the polyvinyl acetal resin in 10% by mass ethanol / toluene to the above range, it becomes easier to disperse metal particles, thermally conductive materials, fire-resistant additives, and the like in the fire-resistant resin composition, and the mechanical strength of the fire-resistant material made from the fire-resistant resin composition is improved. The viscosity of 10% by mass ethanol / toluene is measured as follows: 150 ml of an ethanol / toluene (1:1 by mass) mixed solvent is placed in an Erlenmeyer flask, and a weighed sample is added to it to make the resin concentration 10 wt%. The sample is then dissolved by shaking in a thermostatic chamber at 20°C. The solution is kept at 20°C and the viscosity is measured using a BM-type viscometer to determine the viscosity of the 10% by mass ethanol / toluene solution.

[0023] The aldehyde is not particularly limited, but generally, an aldehyde having 1 to 10 carbon atoms is suitably used. The aldehyde having 1 to 10 carbon atoms is not particularly limited, and examples thereof include n-butylaldehyde, isobutyraldehyde, n-valeraldehyde, 2-ethylbutyraldehyde, n-hexylaldehyde, n-octylaldehyde, n-nonylaldehyde, n-decylaldehyde, formaldehyde, acetaldehyde, and benzaldehyde. Among these, n-butylaldehyde, n-hexylaldehyde, and n-valeraldehyde are preferred, and n-butylaldehyde is more preferred. These aldehydes may be used alone or in combination of two or more.

[0024] Acrylic resin The acrylic resin is, for example, a polymer obtained by polymerizing a monomer component containing a (meth)acrylic acid alkyl ester monomer. In this specification, "(meth)acrylic acid alkyl ester" means "acrylic acid alkyl ester or methacrylic acid alkyl ester." The same applies to other similar terms. The (meth)acrylic acid alkyl ester monomer in the present invention is an ester of (meth)acrylic acid and an aliphatic alcohol, and the number of carbon atoms in the alkyl group of the aliphatic alcohol is, for example, 1 to 18, preferably 1 to 14, more preferably 1 to 10, and even more preferably 1 to 8.

[0025] Specific examples of (meth)acrylic acid alkyl ester monomers include methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, t-butyl (meth)acrylate, pentyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate, isooctyl (meth)acrylate, nonyl (meth)acrylate, decyl (meth)acrylate, undecyl (meth)acrylate, dodecyl (meth)acrylate, tridecyl (meth)acrylate, and tetradecyl (meth)acrylate. The (meth)acrylic acid alkyl ester-based monomers may be used alone or in combination of two or more kinds.

[0026] Furthermore, the monomer components for obtaining the acrylic resin may contain a polar group-containing monomer in addition to the above-mentioned (meth)acrylic acid alkyl ester-based monomer. Examples of polar group-containing monomers include carboxylic acids containing a vinyl group, such as (meth)acrylic acid and itaconic acid; vinyl monomers having a hydroxyl group, such as 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, caprolactone-modified (meth)acrylate, polyoxyethylene (meth)acrylate, and polyoxypropylene (meth)acrylate; and nitrogen-containing vinyl monomers, such as (meth)acrylonitrile, N-vinylpyrrolidone, N-vinylcaprolactam, N-vinyllaurolactam, (meth)acryloylmorpholine, (meth)acrylamide, dimethyl(meth)acrylamide, N-methylol(meth)acrylamide, N-butoxymethyl(meth)acrylamide, and dimethylaminomethyl (meth)acrylate.

[0027] The glass transition temperature (Tg) of the acrylic resin is preferably 5 to 80°C. By setting the glass transition temperature (Tg) within this range, it is possible to impart a certain level of mechanical strength to a product made from the fire-resistant resin composition while improving moldability, flexibility, etc. From these viewpoints, the glass transition temperature (Tg) of the acrylic resin is preferably 15 to 70°C, and more preferably 25 to 60°C. The glass transition temperature (Tg) of the acrylic resin can be adjusted by appropriately selecting the type and amount of the monomer component used. The glass transition temperature (Tg) of the acrylic resin can be measured, for example, by a differential scanning calorimeter (DSC).

[0028] The acrylic resin is preferably a polymer of a (meth)acrylic acid alkyl ester monomer. Specifically, a polymer of a (meth)acrylic acid alkyl ester monomer having an alkyl group with 1 to 14 carbon atoms is preferred, a polymer of a (meth)acrylic acid alkyl ester monomer having an alkyl group with 1 to 10 carbon atoms is more preferred, and a polymer of a (meth)acrylic acid alkyl ester monomer having an alkyl group with 1 to 8 carbon atoms is even more preferred. The acrylic resin may be a homopolymer of a (meth)acrylic acid alkyl ester monomer or a copolymer of two or more kinds of (meth)acrylic acid alkyl ester monomers. Specific preferred acrylic resins include a homopolymer of isobutyl methacrylate and a copolymer of isobutyl methacrylate and methyl methacrylate. The acrylic resins may be used alone or in combination of two or more kinds.

[0029] The weight-average molecular weight of the acrylic resin is preferably 10,000 to 300,000 from the viewpoints of enabling metal particles, thermally conductive materials, fire-resistant additives, etc. to be appropriately dispersed in the fire-resistant resin composition and improving the mechanical strength of the fire-resistant material made from the fire-resistant resin composition. From these viewpoints, the weight-average molecular weight of the acrylic resin is more preferably 30,000 to 250,000, and even more preferably 60,000 to 200,000. The weight-average molecular weight of the acrylic resin is a weight-average molecular weight measured by gel permeation chromatography (GPC) in terms of standard polystyrene. Examples of columns used for measuring the weight-average molecular weight by GPC include Shodex LF-804 (manufactured by Showa Denko KK).

[0030] 《Epoxy resin》 The epoxy resin used in the present invention is not particularly limited, but examples thereof include an epoxy compound alone, or a compound consisting of an epoxy compound as a main component and a curing agent. The epoxy compound is a compound having an epoxy group, and specific examples thereof include glycidyl ether type and glycidyl ester type. The glycidyl ether type may be bifunctional or multifunctional (trifunctional or higher). The same applies to the glycidyl ester type. The epoxy compound may contain a monofunctional compound in order to adjust the degree of crosslinking, etc. Among these, bifunctional glycidyl ether type is preferred.

[0031] Examples of the bifunctional glycidyl ether epoxy compounds include alkylene glycol types such as polyethylene glycol and polypropylene glycol, neopentyl glycol, 1,6-hexanediol, and hydrogenated bisphenol A. Further examples include aromatic epoxy compounds containing an aromatic ring such as bisphenol A, bisphenol F, bisphenol AD, ethylene oxide-bisphenol A, and propylene oxide-bisphenol A. Of these, aromatic epoxy compounds such as bisphenol A and bisphenol F are preferred.

[0032] Examples of the glycidyl ester type epoxy compound include hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, p-oxybenzoic acid type, and other epoxy compounds. Examples of trifunctional or higher functional glycidyl ether epoxy compounds include phenol novolac, orthocresol novolac, DPP novolac, and dicyclopentadiene-phenol. These epoxy compounds may be used alone or in combination of two or more.

[0033] The curing agent used may be a polyaddition type or a catalyst type. Examples of polyaddition type curing agents include polyamine-based curing agents, acid anhydride-based curing agents, polyphenol-based curing agents, and polymercaptan. Examples of the catalyst type curing agents include tertiary amines, imidazoles, and Lewis acid complexes. These curing agents may be used alone or in combination of two or more.

[0034] Furthermore, when the fire-resistant resin composition is used, for example, as a fire-resistant putty described below, the resin may be any resin that has conventionally been used in fire-resistant putties, and it is preferable to use, for example, a polyester-based resin, a polybutene-based resin, an epoxy-based resin, an acrylic-based resin, a liquefied hydrocarbon resin, a synthetic rubber, or the like.

[0035] The resin content in the fire-resistant resin composition is, for example, 1 to 90% by mass, preferably 2 to 50% by mass, and more preferably 4 to 25% by mass, based on the solid content of the fire-resistant resin composition. When the content is above these lower limits, the dispersibility of metal particles, thermally conductive materials, fire-resistant additives, etc. in the fire-resistant resin composition is improved, and the mechanical strength and moldability of a fire-resistant material made from the fire-resistant resin composition, such as tensile strength, are likely to be increased. When the content is below the upper limit, the fire resistance and fire-extinguishing performance of a fire-resistant material made from the fire-resistant resin composition are likely to be improved. The solid content of the fire-resistant resin composition refers to the content of the fire-resistant resin composition excluding volatile components that volatilize during the process of producing the fire-resistant material. When the fire-resistant resin composition is diluted with a solvent, it refers to the amount of the fire-resistant resin composition excluding the amount of the solvent.

[0036] <Thermal conductive materials> A thermally conductive substance is a substance that has thermal conductivity, specifically a substance with a thermal conductivity of 5 W / m·K or more. Examples of thermally conductive substances contained in the fire-resistant resin composition include thermally conductive fillers, whiskers, chopped strands, etc., of which thermally conductive fillers are preferred. In this specification, the thermally conductive substance refers to a substance other than metal particles, which will be described later. Examples of thermally conductive substances include graphite and inorganic compounds. Therefore, examples of thermally conductive fillers include fillers such as graphite and inorganic compounds. The thermally conductive substance may be used alone or in combination of two or more. The thermally conductive substance may be surface-treated to improve adhesion to the resin and processability.

[0037] Examples of graphite include natural graphite such as flake graphite, lump graphite, and amorphous graphite, as well as artificial graphite such as expanded graphite. Expanded graphite refers to graphite obtained by heating and expanding thermally expandable graphite, pressing it into a sheet, and then pulverizing the sheet.

[0038] The inorganic compound refers to a compound other than graphite, and specific examples of the inorganic compound include metal oxides such as aluminum oxide, magnesium oxide, calcium oxide, magnesium oxide, iron oxide, titanium oxide, tin oxide, antimony oxide, and zinc oxide, nitrides such as boron nitride, aluminum nitride, and silicon nitride, carbides such as silicon carbide, and carbonate compounds (excluding calcium carbonate) such as basic magnesium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate. Other examples include silica, diatomaceous earth, barium sulfate, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, silica-based balloons, graphite, graphene, carbon black, carbon fiber, carbon balloons, charcoal powder, ferrite, potassium titanate, magnesium sulfate, lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, molybdenum sulfide, stainless steel fiber, slag fiber, and fly ash.

[0039] The shape of the thermally conductive filler as a thermally conductive substance is not particularly limited, and may be any of spherical, hollow, plate-like, scaly, needle-like, etc., or a mixture of different shapes. It may also be an agglomerated particle, which is a secondary particle formed by aggregating primary particles.

[0040] As the thermally conductive filler, magnesium oxide, aluminum oxide, zinc oxide, boron nitride, and expanded graphite are preferred, and boron nitride, aluminum oxide, and expanded graphite are more preferred because they have high thermal conductivity and are versatile. From the viewpoint of making it easier to improve thermal conductivity, it is more preferable that the boron nitride is in the form of agglomerated particles, which are secondary particles formed by aggregating primary particles of boron nitride, for example, agglomerated particles formed by aggregating scaly primary particles.

[0041] The shape of the expanded graphite is not particularly limited, but is preferably flaky. From the viewpoint of increasing thermal conductivity, the average aspect ratio of the expanded graphite is preferably 2 or more, more preferably 5 or more, even more preferably 10 or more, and preferably 1,000 or less, more preferably 100 or less, and even more preferably 50 or less. The aspect ratio of the expanded graphite is calculated by measuring the maximum dimension (major axis) and minimum dimension (minor axis) of each of 10 pieces of expanded graphite, and averaging the value obtained by dividing the maximum dimension (major axis) by the minimum dimension (minor axis) for the 10 pieces of expanded graphite. The major axis and minor axis of the expanded graphite can be measured, for example, using a scanning electron microscope (FE-SEM).

[0042] The content of the thermally conductive substance in the fire-resistant resin composition is preferably 50 to 1,200 parts by mass, more preferably 75 to 1,000 parts by mass, and even more preferably 100 to 800 parts by mass, per 100 parts by mass of the resin. When the content of the thermally conductive substance is within the above range, it becomes easier to further improve the thermal conductivity.

[0043] The average particle size of the thermally conductive filler as a thermally conductive substance is preferably 0.1 to 100 μm, more preferably 0.3 to 50 μm, and even more preferably 0.5 to 25 μm. The average particle size of the thermally conductive material is the median diameter (D50) measured by a laser diffraction / scattering particle size distribution measuring device.

[0044] The density of the thermally conductive filler as a thermally conductive material is 2.0 to 8.0 g / cm 3 is preferred, and 2.0 to 6.0 g / cm 3 More preferably, 2.0 to 5.0 g / cm 3 is more preferable. The thermal conductivity of the thermally conductive filler as a thermally conductive substance is preferably 5 W / m·K or more, more preferably 10 W / m·K or more, and although there is no particular upper limit, it is usually 2,000 W / m·K or less.

[0045] <Metal particles> The inclusion of metal particles in a fire-resistant resin composition improves thermal conductivity, while also improving the mechanical strength and residual hardness of the fire-resistant resin composition when heated. Although the reason for this is unclear, it is presumed that the metal powders are sintered together by heat, resulting in improved mechanical strength and residual hardness. Furthermore, the increased residual hardness improves adhesion to buildings, leading to improved fire resistance.

[0046] Examples of metal particles include aluminum particles, stainless steel particles, tungsten particles, zinc particles, duralumin particles, magnesium particles, molybdenum particles, beryllium particles, calcium particles, gold particles, silver particles, and copper particles. Of these, aluminum particles, stainless steel particles, silver particles, and copper particles are preferred, and copper particles are more preferred. The metal particles may be used alone or in combination of two or more kinds.

[0047] The content of the metal particles in the fire-resistant resin composition is preferably 100 to 1,500 parts by mass, more preferably 120 to 1,400 parts by mass, and even more preferably 140 to 1,300 parts by mass, per 100 parts by mass of the resin. When the content of the metal particles is within the above range, thermal conductivity is more likely to be improved.

[0048] The content of the metal particles in the fire-resistant resin composition is preferably 1 to 1,000 parts by mass, more preferably 10 to 950 parts by mass, and even more preferably 20 to 900 parts by mass, relative to 100 parts by mass of the thermally conductive substance. When the content of the metal particles is within the above range, thermal conductivity can be more easily improved.

[0049] The average particle size of the metal particles is preferably 0.1 to 100 μm, more preferably 0.3 to 50 μm, and even more preferably 0.5 to 25 μm. The average particle size of the metal particles is the median diameter (D50) measured by a laser diffraction / scattering particle size distribution measuring device. The thermal conductivity of the metal particles is preferably 5 W / m·K or more, more preferably 10 W / m·K or more, and although there is no particular upper limit, it is usually 2,000 W / m·K or less. There are no particular limitations on the shape of the metal particles, and they may be spherical, hollow, plate-like, scale-like, needle-like, or the like, or different shapes may be mixed.

[0050] <Fire-resistant additives> In the present invention, the fire-resistant additive is one or more selected from a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material. The fire-resistant additive has fire resistance and exhibits fire-extinguishing performance when a fire occurs. The fire-resistant additive is dispersed in the resin of the fire-resistant resin composition and is held by the resin. The fire-resistant additive may be one of the three components of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material, or a combination of two of these components. That is, a flame retardant and a heat-absorbing agent may be used in combination, a flame retardant and a thermally expandable layered inorganic material may be used in combination, or a heat-absorbing agent and a thermally expandable layered inorganic material may be used in combination. Furthermore, all of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material may be used.

[0051] The content of the fire-resistant additive in the fire-resistant resin composition is preferably 50 to 1,000 parts by mass, more preferably 75 to 800 parts by mass, and even more preferably 100 to 500 parts by mass, per 100 parts by mass of the resin. By ensuring that the content of the fire-resistant additive is equal to or greater than the above-mentioned lower limit, it is possible to impart appropriate fire resistance and fire extinguishing performance to a fire-resistant material made from the fire-resistant resin composition. Furthermore, by ensuring that the content of the fire-resistant additive is equal to or less than the above-mentioned upper limit, it is possible to include a certain proportion or more of the resin in the fire-resistant resin composition, which makes it possible to appropriately disperse the fire-resistant additive in the resin of the fire-resistant material made from the fire-resistant resin composition, thereby improving moldability.

[0052] Flame retardants The flame retardant in the present invention may be a phosphorus compound. Examples of the phosphorus compound include lower phosphates, polyphosphates, melamine-based phosphorus compounds, red phosphorus, phosphoric acid esters, condensed phosphoric acid esters, and phosphorus compounds represented by the general formula (1) described below. By using these phosphorus compounds as flame retardants, appropriate fire resistance and fire extinguishing performance can be obtained. These flame retardants may be used alone or in combination of two or more.

[0053] <Low phosphate> The lower phosphate refers to a salt of inorganic phosphoric acid that is not condensed, i.e., not polymerized, and has one phosphorus atom per molecule of inorganic phosphoric acid. The inorganic phosphoric acid is not limited to phosphoric acid (orthophosphoric acid), but may also be metaphosphoric acid, phosphorous acid, hypophosphorous acid, etc. The phosphate may be any of monophosphate, diphosphate, and tertiary phosphate. Examples of salts include alkali metal salts such as lithium salt, sodium salt, and potassium salt; alkaline earth metal salts such as magnesium salt, calcium salt, strontium salt, and barium salt; salts of metals from Group 3B of the Periodic Table such as aluminum salt; and transition metal salts such as titanium salt, manganese salt, iron salt, nickel salt, copper salt, zinc salt, vanadium salt, chromium salt, molybdenum salt, and tungsten salt. Other examples include ammonium salts, amine salts, and salts of, for example, guanidine salts or triazine-based compounds. Among these, metal salts are preferred, and aluminum salts are more preferred. In this specification, salts of melamine-based compounds are defined as melamine-based phosphorus compounds, as described below.

[0054] Specific examples of metal salts of lower phosphoric acids include monoaluminum phosphate, monosodium phosphate, monopotassium phosphate, monocalcium phosphate, monozinc phosphate, dialuminum phosphate, sodium phosphate, dipotassium phosphate, dicalcium phosphate, dizinc phosphate, trialuminum phosphate, sodium phosphate, tripotassium phosphate, tricalcium phosphate, zinc phosphate, aluminum phosphite, sodium phosphite, potassium phosphite, calcium phosphite, zinc phosphite, aluminum hypophosphite, sodium hypophosphite, potassium hypophosphite, calcium hypophosphite, zinc hypophosphite, aluminum metaphosphate, sodium metaphosphate, potassium metaphosphate, calcium metaphosphate, zinc metaphosphate, etc. Among these, aluminum phosphate and aluminum phosphite are preferred.

[0055] <Polyphosphate> Examples of polyphosphates include ammonium polyphosphates such as ammonium polyphosphate, melamine-modified ammonium polyphosphate, piperazine polyphosphate, and ammonium amide polyphosphate, and metal polyphosphates such as aluminum polyphosphate. Among these, ammonium polyphosphate is preferred from the standpoints of fire resistance, safety, cost, ease of handling, etc.

[0056] <Melamine-based phosphorus compounds> Examples of melamine-based phosphorus compounds include salts of melamine or melamine derivatives such as melamine, melem, and melon. Examples of salts of melamine or melamine derivatives include melamine polyphosphate, melamine pyrophosphate, melamine orthophosphate, melamine-melam-melem polyphosphate, melamine polymetaphosphate, organic melamine phosphonate, and organic melamine phosphinate. Among these, polyphosphates of melamine-based compounds such as melamine polyphosphate, melamine-melam-melem polyphosphate, and the like are preferred.

[0057] <Phosphate ester> Examples of phosphate esters include trimethyl phosphate, triethyl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, cresyl di-2,6-xylenyl phosphate, tris(β-chloropropyl)phosphate (TMCPP), and tris(tribromoneopentyl)phosphate.

[0058] <Condensed phosphate ester> Examples of condensed phosphate esters include trialkyl polyphosphate, resorcinol polyphenyl phosphate, bisphenol A polycresyl phosphate, resorcinol poly(di-2,6-xylyl) phosphate, hydroquinone poly(2,6-xylyl) phosphate, and condensates thereof. Furthermore, the condensed phosphate may be a halogen-containing condensed phosphate in which part of the condensed phosphate is substituted with a chlorine atom.

[0059] The compounds represented by general formula (1) are as follows: [ka] In formula (1), R 1 and R 3 are the same or different and represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. 2represents a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or an aryloxy group having 6 to 16 carbon atoms. Examples of the compound represented by the above chemical formula include methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methylpropylphosphonic acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphinic acid, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, and bis(4-methoxyphenyl)phosphinic acid. The above phosphorus compounds may be used alone or in combination of two or more.

[0060] Among the above-mentioned phosphorus compounds, from the viewpoint of increasing shape retention and improving fire resistance, it is preferable that the phosphorus compound contains at least one selected from phosphate esters, lower phosphates, and polyphosphates, and it is also preferable that the phosphorus compound contains at least one selected from phosphate esters and lower phosphates.

[0061] The flame retardant in the present invention is preferably a flame retardant that expands upon heating. Examples of the flame retardant that expands upon heating include the above-mentioned lower phosphates, preferably metal salts of lower phosphates, and more preferably aluminum phosphite.

[0062] When the fire-resistant resin composition contains a flame retardant, the content of the flame retardant is preferably 10 to 1,000 parts by mass, more preferably 20 to 400 parts by mass, and even more preferably 30 to 200 parts by mass, per 100 parts by mass of the resin. By setting the content of the flame retardant at or above these lower limits, the shape retention of the fire-resistant resin composition can be increased, and fire resistance can be further improved. Furthermore, by setting the content at or below the above upper limits, the flexibility, shape retention, etc. of the fire-resistant resin composition are less likely to be impaired.

[0063] Heat-absorbing agent The heat-absorbing agent preferably used in the present invention is a hydrated metal compound, which decomposes upon heating to generate water vapor and has the effect of absorbing heat and extinguishing fire. Examples of hydrated metal compounds include metal hydroxides and hydrates of metal salts, with metal hydroxides being preferred. A combination of a metal hydroxide compound and a metal salt hydrate is also preferred. The use of a metal hydroxide compound facilitates improved fire extinguishing performance.

[0064] Examples of metal hydroxides include aluminum hydroxide, magnesium hydroxide, calcium hydroxide, and hydrotalcite. Examples of metal salt hydrates include hydrates of metal sulfates such as zinc borate hydrate represented by 2ZnO·3B2O5·3.5H2O, calcium sulfate hydrate (e.g., dihydrate), and magnesium sulfate hydrate (e.g., heptahydrate). Other examples include kaolin clay, dawsonite, and boehmite. Examples of endothermic agents include calcium aluminate and talc. Of the above-mentioned endothermic agents, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, zinc borate hydrate, calcium sulfate hydrate (e.g., dihydrate), and magnesium sulfate hydrate (e.g., heptahydrate) are preferred, and among these, aluminum hydroxide and magnesium hydroxide are more preferred.

[0065] The endothermic agent is preferably one having a thermal decomposition starting temperature of 800°C or less and an endothermic amount of 300 J / g or more. When either the thermal decomposition starting temperature or the endothermic amount of the endothermic agent falls within the above range, the endothermic agent can quickly extinguish a fire in the event of a battery or the like catching fire, thereby achieving even better fire extinguishing properties.

[0066] The thermal decomposition starting temperature of the endothermic agent is preferably 500°C or lower, more preferably 400°C or lower, even more preferably 300°C or lower, and even more preferably 250°C or lower. By setting the thermal decomposition starting temperature of the endothermic agent to these upper limits or lower, the endothermic agent decomposes quickly upon ignition, enabling rapid extinguishing of the fire. The thermal decomposition starting temperature of the endothermic agent is, for example, 50°C or higher, preferably 100°C or higher, more preferably 150°C or higher, and even more preferably 180°C or higher. The thermal decomposition onset temperature can be measured using a thermogravimetric differential thermal analyzer (TG-DTA). Specifically, the measurement conditions were a temperature rise rate of 4°C / min from room temperature to 1000°C, a weight of the endothermic agent of 10 mg, and the temperature at which the weight started to decrease in the obtained TG curve was defined as the thermal decomposition onset temperature.

[0067] The heat absorption capacity of the endothermic agent is preferably 500 J / g or more, more preferably 600 J / g or more, and even more preferably 900 J / g or more. When the heat absorption capacity of the endothermic agent is within the above range, heat absorption is improved, resulting in better fire resistance. The heat absorption capacity of the endothermic agent is usually 4,000 J / g or less, preferably 3,000 J / g or less, and even more preferably 2,000 J / g or less. The endothermic amount can be measured using a thermogravimetric differential thermal analyzer (TG-DTA). Specifically, the measurement conditions were a temperature rise rate of 4°C / min from room temperature to 1,000°C, and an endothermic agent weight of 10 mg. The endothermic amount (area of ​​the recess) was calculated from the obtained DTA curve.

[0068] The endothermic agent preferably has an average particle diameter of 0.1 to 90 μm. By setting the average particle diameter within the above range, the endothermic agent can be uniformly dispersed in the resin, and a large amount can be incorporated. From these viewpoints, the average particle diameter of the endothermic agent is more preferably 0.5 to 60 μm, even more preferably 0.8 to 40 μm, and even more preferably 0.8 to 10 μm. When the average particle diameter of the endothermic agent is within the above range, the dispersibility of the endothermic agent in the fire-resistant resin composition is improved, and the endothermic agent can be uniformly dispersed in the resin, or the amount of the endothermic agent incorporated relative to the resin can be increased. The average particle size of the heat-absorbing agent is measured in the same manner as the average particle size of the thermally conductive material.

[0069] When the fire-resistant resin composition contains an endothermic agent, the content of the endothermic agent is preferably 10 to 1,000 parts by mass, more preferably 20 to 400 parts by mass, and even more preferably 30 to 300 parts by mass, per 100 parts by mass of the resin. By making the content of the endothermic agent equal to or greater than the above-mentioned lower limit, a sudden temperature rise can be alleviated, and even if a fire breaks out, the fire can be quickly extinguished. By making the content of the endothermic agent equal to or less than the above-mentioned upper limit, the endothermic agent can be easily dispersed uniformly in the fire-resistant resin composition, and the moldability and mechanical strength of the fire-resistant material made from the fire-resistant resin composition can be easily improved.

[0070] <Thermal Expandable Layered Inorganic Material> The thermally expandable layered inorganic material is a conventionally known substance that expands when heated, such as vermiculite or thermally expandable graphite, with thermally expandable graphite being preferred. The thermally expandable layered inorganic material may be particulate or flaky. When the fire-resistant resin composition contains a thermally expandable layered inorganic material, the thermally expandable layered inorganic material expands upon heating due to a building fire or the like, improving adhesion to the building and improving fire resistance. The thermally expandable layered inorganic material preferably has an expansion coefficient of 100 ml / g or more, more preferably 150 ml / g or more. By setting the expansion coefficient of the thermally expandable layered inorganic material to the above lower limit or more, a large volume of voids can be formed during thermal expansion. The thermally expandable layered inorganic material preferably has an expansion start temperature of 200° C. or less, more preferably 140° C. or less. By setting the expansion start temperature of the thermally expandable layered inorganic material to the above upper limit or less, the fire-resistant material made from the fire-resistant resin composition can have excellent fire resistance and fire extinguishing performance.

[0071] <Thermal Expandable Graphite> Thermally expandable graphite is a type of crystalline compound obtained by treating powders of natural flaky graphite, pyrolytic graphite, kish graphite, or the like with an inorganic acid and a strong oxidizing agent to produce a graphite intercalation compound, which maintains the layered structure of carbon. Examples of inorganic acids include concentrated sulfuric acid, nitric acid, and selenic acid. Examples of strong oxidizing agents include concentrated nitric acid, persulfates, perchloric acid, perchlorates, permanganates, dichromates, and hydrogen peroxide. The thermally expandable graphite obtained by the acid treatment described above may be further neutralized with ammonia, aliphatic lower amines, alkali metal compounds, alkaline earth metal compounds, or the like.

[0072] The particle size of the thermally expandable graphite is preferably 20 to 200 mesh. When the particle size of the thermally expandable graphite is within the above range, it expands to easily form large-volume voids, improving fire resistance and dispersibility in resin. The average aspect ratio of the thermally expandable graphite is preferably at least 2, more preferably at least 5, and even more preferably at least 10. There are no particular limitations on the upper limit of the average aspect ratio of the thermally expandable graphite, but from the viewpoint of preventing cracking of the thermally expandable graphite, it is preferably at most 1,000, more preferably at most 100, and even more preferably at most 50. When the average aspect ratio of the thermally expandable graphite is at least 2, it expands to easily form large-volume voids, thereby improving flame retardancy. The average aspect ratio of the thermally expandable graphite is determined by measuring the maximum dimension (major axis) and minimum dimension (minor axis) of each of 10 pieces of thermally expandable graphite, and averaging the values ​​obtained by dividing the maximum dimension (major axis) by the minimum dimension (minor axis). The major axis and minor axis of the thermally expandable graphite can be measured, for example, using a field emission scanning electron microscope (FE-SEM).

[0073] When the fire-resistant resin composition of the present invention contains both thermally expandable graphite and expanded graphite, the average aspect ratio thereof is preferably 2 or more, more preferably 5 or more, and even more preferably 10 or more, from the viewpoint of increasing thermal conductivity, and is preferably 1,000 or less, more preferably 100 or less, and even more preferably 50 or less. The average aspect ratio is an average value of the aspect ratios of the individual thermally expandable graphite particles and the expanded graphite particles, calculated by observing the cross section of the refractory material with a scanning electron microscope.

[0074] When the fire-resistant resin composition contains a thermally expandable layered inorganic material, the thermally expandable layered inorganic material preferably has an expansion ratio of 10 or more when heated to 600° C., more preferably 15 or more, and even more preferably 20 or more. When the thermally expandable layered inorganic material has an expansion ratio of 600° C. within the above range, the fire-suppressing effect and heat-insulating performance can be exhibited. As shown in the examples described later, the expansion ratio is calculated by heating a test piece at 600°C for 30 minutes and dividing the thickness of the test piece after heating by the thickness of the test piece before heating.

[0075] When the fire-resistant resin composition contains a thermally expandable layered inorganic material, the content of the thermally expandable layered inorganic material is preferably 10 to 1,000 parts by mass, more preferably 20 to 600 parts by mass, and even more preferably 30 to 400 parts by mass, per 100 parts by mass of the resin. When the content of the thermally expandable layered inorganic material is within the above range, it becomes easier to create large-volume voids in the fire-resistant material made of the fire-resistant resin composition, thereby improving flame retardancy.

[0076] <Optional ingredients> <Inorganic fillers> The fire-resistant resin composition of the present invention may further contain an inorganic filler other than the thermally conductive material, metal particles, flame retardant, heat-absorbing agent, and thermally expandable layered inorganic material. The inorganic filler is not particularly limited, and examples thereof include glass fiber, glass beads, dewatered sludge, etc. These inorganic fillers may be used alone or in combination of two or more.

[0077] The average particle size of the inorganic filler is preferably 0.5 to 100 μm, more preferably 1 to 50 μm. When the content of the inorganic filler is low, a small particle size is preferred from the viewpoint of improving dispersibility, but when the content is high, a large particle size is preferred because as the filling level increases, the viscosity of the fire-resistant resin composition increases and moldability decreases.

[0078] When the fire-resistant resin composition of the present invention contains an inorganic filler, the content of the inorganic filler is preferably 10 to 300 parts by mass, more preferably 10 to 200 parts by mass, per 100 parts by mass of the resin. When the content of the inorganic filler is within the above range, the mechanical properties of the fire-resistant material made from the fire-resistant resin composition can be improved.

[0079] Plasticizer The fire-resistant resin composition of the present invention may further contain a plasticizer. In particular, when the resin component is a polyvinyl chloride resin, it is preferable to contain a plasticizer from the viewpoint of improving moldability. The plasticizer is not particularly limited as long as it is a plasticizer commonly used in producing polyvinyl chloride resin molded articles. Specific examples include phthalate ester plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), and diisodecyl phthalate (DIDP); fatty acid ester plasticizers such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), and dibutyl adipate (DBA); epoxidized ester plasticizers such as epoxidized soybean oil; adipate ester plasticizers such as adipate esters and adipic acid polyesters; trimellitate ester plasticizers such as tri-2-ethylhexyl trimellitate (TO™) and triisononyl trimellitate (TINT™); and process oils such as mineral oil. Plasticizers may be used alone or in combination of two or more.

[0080] When the fire-resistant resin composition of the present invention contains a plasticizer, the content of the plasticizer is preferably 1 to 40 parts by mass, more preferably 5 to 35 parts by mass, per 100 parts by mass of the resin. When the content of the plasticizer is within the above range, extrusion moldability tends to be improved, and the fire-resistant material made of the fire-resistant resin composition can be prevented from becoming too soft.

[0081] <Dispersant> The fire-resistant resin composition of the present invention may further contain a dispersant, which improves the dispersibility of metal particles, thermally conductive materials, fire-resistant additives, and the like in the fire-resistant resin composition. Various surfactants can be used as dispersants. The surfactant preferably has a hydrophilic group portion and a hydrophobic group portion compatible with the resin component. Specific examples include polyether phosphate esters or their amine salts, polyether polyol polyester acids or their amine salts, polyesters or their amine salts, polycarboxylic acids or their amine salts, phosphate salts of polyaminoamides and phosphoric acid, and polyester acid amides or their amine salts. The amines used in these dispersants may be polyamines. Polyether-based dispersants are preferred, and polyether phosphate esters or their amine salts are particularly preferred. The dispersants may be used alone or in combination.

[0082] When the fire-resistant resin composition of the present invention contains a dispersant, the content of the dispersant is preferably 1 to 40 parts by mass, more preferably 5 to 30 parts by mass, per 100 parts by mass of the resin. When the content of the dispersant is within the above range, it becomes easier to incorporate large amounts of metal particles, thermally conductive substances, and fire-resistant additives into the fire-resistant material, and the fire resistance and fire-extinguishing performance of the fire-resistant material made of the fire-resistant resin composition can be improved.

[0083] <Other ingredients> The fire-resistant resin composition of the present invention may contain various additive components as needed, provided that the object of the present invention is not impaired. The type of additive component is not particularly limited, and various additives can be used. Examples of such additives include lubricants, anti-shrinkage agents, crystal nucleating agents, colorants (pigments, dyes, etc.), ultraviolet absorbers, antioxidants, antiaging agents, reinforcing agents, flame retardant aids, antistatic agents, surfactants, vulcanizing agents, and surface treatment agents. The amount of additive component added can be appropriately selected within a range that does not impair moldability, etc. The additive components may be used alone or in combination of two or more.

[0084] <Method of manufacturing fire-resistant resin composition> The fire-resistant resin composition of the present invention can be obtained by mixing a resin, metal particles, a thermally conductive material, a fire-resistant additive, and optional components using a known device such as a bead mill, a Banbury mixer, a kneader mixer, a kneading roll, a Raikai mixer, or a planetary mixer.

[0085] [Fireproof material] The fireproof material of the present invention is a component made of the fireproof resin composition and used in the fireproof structure of a building. The form in which the fireproof material is used in the fireproof structure of a building is not particularly limited, and may be, for example, a fireproof putty in the form of a paste or clay. It may also be in the form of a sheet, block, pillar, or the like. Among these, it is preferably used as a fireproof putty or a sheet-like fireproof material, and a sheet-like fireproof material is more preferable. In the present invention, by using a fireproof material made of the fireproof resin composition in the fireproof structure of a building, even if a fire breaks out due to a fire or the like, the heat generated by the ignition can be efficiently dissipated and the fire can be quickly extinguished.

[0086] The fire-resistant material of the present invention can be used as a fire-resistant putty in the fire-resistant structure of a building. The fire-resistant putty can fill and close open areas such as compartment penetrations in a building, thereby making the compartment penetrations fire-resistant and providing fire resistance, flameproofing, and smokeproofing. In the present invention, the above-mentioned fire-resistant resin composition can be used as a fire-resistant putty.

[0087] The fire-resistant material of the present invention can be used in the form of a sheet-like fire-resistant sheet for the fire prevention structure of a building. By placing the fire-resistant sheet in an open area such as a compartment penetration part in a building and closing it, the compartment penetration part can be made into a fire-resistant structure, and fire resistance, flame resistance, and smoke resistance can be obtained. The thickness of the fire-resistant sheet is not particularly limited, but is preferably 0.5 to 10 mm, more preferably 1 to 9 mm, and even more preferably 1.5 to 8 mm. When the thickness of the fire-resistant sheet is within the above range, it can exhibit good fire resistance and fire extinguishing performance while maintaining mechanical strength. In this specification, the "thickness" of the fire-resistant sheet refers to the average thickness of the fire-resistant sheet at three points in the width direction.

[0088] The fire-resistant sheet of the present invention may be used as a fire-resistant material alone, or may have a configuration in which a layer other than a fire-resistant material is laminated. An example of a configuration in which a layer other than a fire-resistant material is laminated is a configuration having a substrate and a fire-resistant material provided on at least one surface of the substrate. Here, the substrate may be a combustible layer, a semi-noncombustible layer, or a noncombustible layer. The thickness of the substrate is not particularly limited, but is, for example, 0.01 to 1 mm, preferably 0.05 to 0.5 mm. Examples of materials used for the combustible layer include one or more of cloth, paper, wood, and resin film. When the substrate is a semi-noncombustible layer or a noncombustible layer, examples of materials used for the semi-noncombustible layer or the noncombustible layer include metals and inorganic materials, and may be a composite of a metal and an inorganic material, such as an aluminum-glass composite.

[0089] The laminated structure of layers other than the fire-resistant material may also include a fire-resistant material and an adhesive layer provided on at least one surface of the fire-resistant material. The adhesive layer may be provided on the substrate or may be formed directly on the surface of the fire-resistant material. Alternatively, a double-sided adhesive tape having adhesive layers provided on both surfaces of the substrate may be attached to at least one surface of the fire-resistant material. That is, the adhesive layer, substrate, and adhesive layer may be provided in this order on one surface of the fire-resistant material. The adhesive constituting the adhesive layer is not particularly limited, and examples thereof include, but are not limited to, acrylic adhesives, urethane adhesives, rubber adhesives, etc. The thickness of the adhesive layer is not particularly limited, and is, for example, 3 to 500 μm, and preferably 10 to 200 μm.

[0090] <Fire-resistant sheet manufacturing method> The fire-resistant sheet of the present invention can be produced by a method of coating a fire-resistant resin composition to form a film, or by a method of forming a molded article from the fire-resistant resin composition. In the method of forming a film by coating the fire-resistant resin composition, the fire-resistant resin composition is coated on a substrate or on the release-treated surface of a release sheet, and then dried, cured, or the like as appropriate to obtain a fire-resistant material as a coated film. In the method of forming a molded article from the fire-resistant resin composition, a fire-resistant material can be obtained by forming the fire-resistant resin composition into a molded article by molding means such as extrusion molding, injection molding, press molding, etc. As the molding means, extrusion molding is preferred, and molding can be performed using a single-screw extruder, a twin-screw extruder, an injection molding machine, etc. The fire-resistant sheet obtained by the method for producing a fire-resistant sheet of the present invention can be rolled with a rolling mill or the like to have a desired thickness.

[0091] "solvent" The fire-resistant resin composition of the present invention may be diluted with a solvent to form a film, for example, by coating. The solvent adjusts the viscosity of the dispersion of the fire-resistant resin composition containing the metal particles, the thermally conductive material, and the fire-resistant additive. The fire-resistant resin composition of the present invention can be diluted with a solvent, coated into a film, and dried to form a fire-resistant sheet. The solvent is not particularly limited, but examples thereof include aliphatic hydrocarbon solvents such as n-pentane, n-hexane, n-heptane, and cyclohexane; aromatic hydrocarbon solvents such as toluene; ester solvents such as ethyl acetate and n-butyl acetate; ketone solvents such as acetone and methyl ethyl ketone (MEK); and alcohol solvents such as ethanol, isopropyl alcohol, and butanol. These may be used alone or in combination of two or more. When two or more types are used in combination, it is preferable to use, for example, a mixed solvent of an alcohol and water.

[0092] When the fire-resistant resin composition of the present invention is diluted with a solvent, the content of the solvent is preferably 50 to 5,000 parts by mass, more preferably 100 to 4,000 parts by mass, per 100 parts by mass of the resin. When the content of the solvent is within the above range, it becomes easy to adjust the viscosity of the dispersion of the fire-resistant resin composition, and the moldability of the fire-resistant material made of the fire-resistant resin composition becomes good.

[0093] [Fire-resistant laminate] The fire-resistant laminate of the present invention comprises a fire-resistant resin layer containing a resin and at least one fire-resistant additive selected from the group consisting of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material, and a heat-conductive layer containing a thermally conductive material and metal particles, and is used in a fire-resistant structure for a building. In the present invention, by using the fire-resistant laminate in a fire-resistant structure for a building, even in the event of a fire or the like, the heat generated by the ignition can be efficiently dissipated, thereby quickly extinguishing the fire. The fire-resistant laminate of the present invention may have a configuration in which the fire-resistant resin layer and the thermally conductive layer are directly laminated together, or may have a configuration in which a layer other than the fire-resistant resin layer and the thermally conductive layer is laminated together, and for example, an adhesive layer may be provided between the fire-resistant resin layer and the thermally conductive layer. From the viewpoints of improving the mechanical strength and making it easier to exhibit fire resistance and fire extinguishing performance due to heat dissipation efficiency resulting from high thermal conductivity, it is preferable that the fire-resistant resin layer and the thermally conductive layer are directly laminated together. The fire-resistant laminate of the present invention may have any structure as long as it includes a fire-resistant resin layer and a thermally conductive layer, and may have, for example, a two-layer structure of a fire-resistant resin layer and a thermally conductive layer, a three-layer structure of a thermally conductive layer / fire-resistant resin layer / thermal conductive layer, or a fire-resistant resin layer / thermal conductive layer / fire-resistant resin layer, or may have a structure of more than one layer.

[0094] The fire-resistant laminate of the present invention is preferably in the form of a sheet, and the thickness of the sheet-like fire-resistant laminate is not particularly limited, but is preferably 0.5 to 10 mm, more preferably 1 to 9 mm, and even more preferably 1.5 to 8 mm. When the thickness of the fire-resistant laminate is within the above range, it can exhibit good fire resistance and fire extinguishing performance while maintaining mechanical strength. In this specification, the "thickness" of the fire-resistant laminate refers to the average thickness of the fire-resistant laminate at three points in the width direction.

[0095] <Fireproof resin layer> The fire-resistant resin layer of the present invention can be produced by molding a composition containing a resin and at least one fire-resistant additive selected from the group consisting of the flame retardant, the heat-absorbing agent, and the thermally expandable layered inorganic material. The fire-resistant resin layer of the present invention has fire resistance due to the inclusion of the fire-resistant additive, and exhibits fire-extinguishing performance when a fire occurs. The fire-resistant resin layer of the present invention may contain one of the three components, flame retardant, heat-absorbing agent, and thermally expandable layered inorganic material, or a combination of two of these components. That is, it may contain a combination of a flame retardant and a heat-absorbing agent, a combination of a flame retardant and a thermally expandable layered inorganic material, or a combination of a heat-absorbing agent and a thermally expandable layered inorganic material. It may also contain all of a flame retardant, a heat-absorbing agent, and a thermally expandable layered inorganic material. The fire-resistant additives and resins used in the fire-resistant resin layer of the present invention can be the same as the fire-resistant additives and resins of the fire-resistant resin composition described above, and the details are the same as those described above, so they will not be described again.

[0096] The content of the fire-resistant additive in the fire-resistant resin layer is preferably 50 to 1,000 parts by mass, more preferably 75 to 900 parts by mass, and even more preferably 100 to 800 parts by mass, per 100 parts by mass of the resin. By setting the content of the fire-resistant additive to at least the above-mentioned lower limit, it is possible to impart appropriate fire resistance and fire extinguishing performance to the fire-resistant resin layer. Furthermore, by setting the content of the fire-resistant additive to at most the above-mentioned upper limit, it is possible to contain at least a certain proportion of the resin in the fire-resistant resin layer, which makes it possible to appropriately disperse the fire-resistant additive in the resin of the fire-resistant resin layer and improves moldability.

[0097] When the fire-resistant resin layer contains a flame retardant, the content of the flame retardant is preferably 10 to 900 parts by mass, more preferably 20 to 700 parts by mass, and even more preferably 30 to 500 parts by mass, per 100 parts by mass of the resin. By setting the content of the flame retardant at or above these lower limits, the shape retention of the fire-resistant resin layer can be increased, and fire resistance can be further improved. Furthermore, by setting the content at or below the above upper limits, the flexibility, shape retention, etc. of the fire-resistant resin layer are less likely to be impaired.

[0098] When the fire-resistant resin layer contains an endothermic agent, the content of the endothermic agent is preferably 10 to 900 parts by mass, more preferably 20 to 600 parts by mass, and even more preferably 30 to 300 parts by mass, per 100 parts by mass of the resin. By making the content of the endothermic agent equal to or greater than the above-mentioned lower limit, a sudden temperature rise can be alleviated, and even if a fire breaks out, the fire can be quickly extinguished. By making the content of the endothermic agent equal to or less than the above-mentioned upper limit, the endothermic agent can be easily dispersed uniformly in the fire-resistant resin layer, and the formability and mechanical strength of the fire-resistant resin layer can be easily improved.

[0099] When the fire-resistant resin layer contains a thermally expandable layered inorganic material, the content of the thermally expandable layered inorganic material is preferably 10 to 1,500 parts by mass, more preferably 20 to 1,000 parts by mass, and even more preferably 30 to 500 parts by mass, relative to 100 parts by mass of the resin. When the content of the thermally expandable layered inorganic material is within the above range, it becomes easier to create large-volume voids in the fire-resistant resin layer, thereby improving flame retardancy.

[0100] The resin content in the fire-resistant resin layer is, for example, 1 to 97% by mass, preferably 2 to 97% by mass, and more preferably 3 to 97% by mass, based on the solid content of the fire-resistant resin layer. When the content is equal to or greater than these lower limits, the dispersibility of fire-resistant additives and the like is improved, and the mechanical strength and moldability of the fire-resistant resin layer, such as tensile strength, tend to be increased. When the content is equal to or less than the upper limits, the fire resistance and fire-extinguishing performance of the fire-resistant resin layer tend to be improved.

[0101] The fire-resistant resin layer of the present invention may contain various additive components as needed within the scope of the object of the present invention.

[0102] The thickness of the fire-resistant resin layer of the present invention is not particularly limited, but is preferably 0.1 to 20 mm, more preferably 0.3 to 10 mm, and even more preferably 0.5 to 5 mm. When the thickness of the fire-resistant resin layer is within the above range, fire resistance and fire extinguishing performance can be obtained while maintaining mechanical strength. In this specification, the "thickness" of the fire-resistant resin layer refers to the average thickness of the fire-resistant resin layer at three points in the width direction.

[0103] <<Method for manufacturing fire-resistant resin layer>> The composition for forming the fire-resistant resin layer of the present invention can be obtained by mixing the fire-resistant additive, resin, and optional components using a known device such as a bead mill, a Banbury mixer, a kneader mixer, a kneading roll, a Raikai mixer, a planetary mixer, etc. When the composition for forming the fire-resistant resin layer of the present invention is diluted with a solvent, the diluted solution of the composition can be obtained by further adding a solvent to the composition and mixing using the above-mentioned mixing device. The obtained composition for forming the fire-resistant resin layer can be used to obtain a fire-resistant resin layer by the coating film formation method and the method of forming a molded article, similar to the method for producing the fire-resistant material described above.

[0104] <Thermal Conduction Layer> The thermally conductive layer of the present invention can be produced by molding a composition containing the above-mentioned thermally conductive material, metal particles, and resin. By containing the thermally conductive material and metal particles, the thermally conductive layer of the present invention can conduct and dissipate heat in the event of a fire, thereby suppressing ignition. The thermally conductive layer may be a single layer or two or more layers. The thermally conductive material, metal particles, and resin used in the thermally conductive layer of the present invention can be the same as the thermally conductive material, metal particles, and resin described above, and the details are the same as those described above, so a description thereof will be omitted.

[0105] The content of the thermally conductive substance in the thermally conductive layer is preferably 50 to 1,200 parts by mass, more preferably 75 to 1,000 parts by mass, and even more preferably 100 to 800 parts by mass, relative to 100 parts by mass of the resin. By ensuring that the content of the thermally conductive substance in the thermally conductive layer is within the above range, thermal conductivity can be improved.

[0106] The content of the metal particles in the thermally conductive layer is preferably 100 to 1,500 parts by mass, more preferably 120 to 1,400 parts by mass, and even more preferably 140 to 1,300 parts by mass, relative to 100 parts by mass of the resin. By keeping the content of the metal particles in the thermally conductive layer within the above range, thermal conductivity can be improved.

[0107] The content of the metal particles in the thermally conductive layer is preferably 1 to 1,000 parts by mass, more preferably 10 to 950 parts by mass, and even more preferably 20 to 900 parts by mass, relative to 100 parts by mass of the thermally conductive substance. When the content of the metal particles in the thermally conductive layer is within the above range, thermal conductivity can be improved.

[0108] The resin content in the thermally conductive layer is, for example, 1 to 30 mass %, preferably 2 to 25 mass %, and more preferably 3 to 20 mass %, based on the solid content of the thermally conductive layer. When the content is equal to or greater than these lower limits, the dispersibility of metal particles, thermally conductive materials, etc. is improved, and the mechanical strength and moldability of the first thermally conductive layer, such as tensile strength, are likely to be increased. When the content is equal to or less than the upper limits, the thermal conductivity of the first thermally conductive layer is likely to be improved.

[0109] The total content of the thermally conductive material and metal particles in the thermally conductive layer is preferably 95% by mass or less, more preferably 90% by mass or less, and even more preferably 85% by mass or less, based on the total mass of the thermally conductive layer. When the total content is less than these upper limits, the heat dissipation efficiency due to high thermal conductivity can be achieved, while ensuring moldability and mechanical strength. In the present invention, the fire-resistant resin layer may contain a thermally conductive material and metal particles, but even in such cases, the total content of the thermally conductive material and metal particles contained in the heat conduction layer of the present invention is greater than the total content of the thermally conductive material and metal particles contained in the fire-resistant resin layer. Note that the total content is expressed in mass % relative to the entire heat conduction layer for the heat conduction layer, and in mass % relative to the entire fire-resistant resin layer for the fire-resistant resin layer. The total content of the thermally conductive material and metal particles contained in the thermally conductive layer of the present invention is preferably 50% by mass or more, more preferably 55% by mass or more, and even more preferably 60% by mass or more, based on the entire thermally conductive layer. When the content is equal to or greater than these lower limits, the thermal conductivity of the thermally conductive layer is improved, and the fire resistance of the entire fire-resistant laminate is improved.

[0110] The heat conductive layer of the present invention may contain various additive components as needed within the scope of the object of the present invention. The thermally conductive layer of the present invention may contain, for example, a fire-resistant additive, and preferably contains a thermally expandable layered inorganic material. Details of the fire-resistant additive are as described above. When the thermally conductive layer contains a fire-resistant additive, the content of the fire-resistant additive is preferably 50 to 2,000 parts by mass, more preferably 75 to 1,500 parts by mass, and even more preferably 100 to 1,000 parts by mass, per 100 parts by mass of the resin. When the content of the fire-resistant additive is within the above range, the thermally conductive layer can be imparted with fire resistance and fire extinguishing properties. However, even if the thermally conductive layer contains a fire-resistant additive, the proportion of the total content of the fire-resistant additive contained in the thermally conductive layer is smaller than the proportion of the total content of the fire-resistant additive contained in the fire-resistant resin layer.

[0111] The thickness of the thermally conductive layer of the present invention is not particularly limited, but is preferably 0.1 to 20 mm, more preferably 0.3 to 10 mm, and even more preferably 0.5 to 5 mm. When the thickness of the thermally conductive layer is within the above range, the thermally conductive layer can ensure mechanical strength while exhibiting fire resistance and fire extinguishing performance due to the heat dissipation efficiency achieved by high thermal conductivity. In this specification, the "thickness" of the thermally conductive layer refers to the average thickness of the thermally conductive layer at three points in the width direction.

[0112] <<Method for manufacturing the thermally conductive layer>> The composition for forming the thermally conductive layer of the present invention can be obtained by mixing the thermally conductive material, resin, and optional components using a known device such as a bead mill, a Banbury mixer, a kneader mixer, a kneading roll, a Raikai mixer, a planetary mixer, etc. When the composition for forming the thermally conductive layer of the present invention is diluted with a solvent, the diluted solution of the composition can be obtained by further adding a solvent to the composition and mixing using the above-mentioned mixing device. The composition for forming the thermally conductive layer thus obtained can be used to obtain a thermally conductive layer by coating and forming into a molded article, similar to the method for producing the fire-resistant material described above.

[0113] The fire-resistant laminate may further include a substrate, a pressure-sensitive adhesive layer, etc. For example, when a substrate is included, the fire-resistant laminate may have a configuration including the substrate, and a fire-resistant resin layer and a heat conductive layer provided on at least one surface of the substrate. Furthermore, when an adhesive layer is provided, the laminated structure may include a fire-resistant resin layer, a thermally conductive layer, and an adhesive layer provided outside the laminated structure of the fire-resistant resin layer and the thermally conductive layer. The adhesive layer may be provided on the substrate, or may be formed directly on at least one surface of the fire-resistant resin layer and the thermally conductive layer. Furthermore, a double-sided adhesive tape having adhesive layers provided on both surfaces of the substrate may be attached to at least one surface of the fire-resistant resin layer and the thermally conductive layer. That is, an adhesive layer, a substrate, and an adhesive layer may be provided in this order on at least one surface of the fire-resistant resin layer and the thermally conductive layer. Details of the substrate and the adhesive layer are as described above.

[0114] <<Method for manufacturing fire-resistant laminate>> The method for producing the fire-resistant laminate of the present invention may be any method capable of laminating a fire-resistant resin layer and a thermally conductive layer. For example, the fire-resistant resin layer and the thermally conductive layer may be separately prepared and laminated by pressure bonding or the like to form the fire-resistant resin layer and the thermally conductive layer, or the fire-resistant resin layer and the thermally conductive layer may be integrally molded by co-extruding the compositions thereof using an extruder or the like.

[0115] [Compartment penetration processing structure and compartment penetration processing method] First Embodiment The compartment penetration processing structure according to the first embodiment of the present invention is a fireproof structure for a compartment penetration section 15 formed in a partition section 11 of a building and through which a long penetrating body 21 is inserted, as shown in FIG. The compartment penetration treatment method according to the first embodiment of the present invention includes a step of providing a fire-resistant material in the compartment penetration portion 15, as will be described below.

[0116] The partition 11 in the compartment penetration structure of the present invention is a member that separates compartments (a first compartment A and a second compartment B) in the wall surface of a building, and has a compartment penetration 15 that penetrates from one outer surface 11A of the partition 11 to the other outer surface 11B. The partition 11 shown in FIG. 1 is a hollow wall and is composed of two wall materials (partition materials) 12A and 12B that are arranged with a gap (hollow portion 13) between them. Therefore, the compartment penetration 15 is composed of a through hole 13A formed in one wall material 12A, a through hole 13B formed in the other wall material 12B, and the hollow portion 13 between them. The outer surface of one wall material 12A forms the outer surface 11A of the partition 11, and the outer surface of the other wall material 12B forms the outer surface 11B of the partition 11. The through holes 13A, 13B may have a circular, elliptical, or similar shape so that when the insert member 2 described below is inserted, the outer peripheral surface of the insert member 2 can fit into the shape of the inner peripheral surface of the through holes 13A, 13B. Note that the through holes 13A, 13B in the outer surfaces 11A, 11B, respectively, form openings 13C, 13D of the compartment penetration portion 15 provided in the partition portion 11.

[0117] The insertion member 2 is sleeve-shaped and is inserted into the partition penetration portion 15, and is disposed in the partition penetration portion 15 so that the inserting body 21 passes through the inside of the sleeve. Here, the sleeve-shaped insertion member 2 is passed from one through-hole 13A to the other through-hole 13B in the partition penetration portion 15. The insertion member 2 can prevent communication between the hollow portion 13 and the outside of the partition portion 11. The insertion member 2 is sleeve-shaped, or sheet- or roll-shaped and can be transformed into a sleeve. The insertion member 2 that can be transformed into a sleeve refers to a sheet- or roll-shaped member that is formed into a sleeve by aligning the ends of the sheet- or roll-shaped member and inserting it into the compartment penetration portion 15. The ability of the insertion member 2 to be transformed into a sleeve allows the size of the insertion member 2 to be adjusted to fit the size of the through holes 13A and 13B at the construction site, thereby enabling the insertion member 2 to be transformed into a sleeve of various sizes. The thickness of the sheet- or roll-shaped insertion member 2 is not particularly limited, but is, for example, 0.01 to 10 mm, preferably 0.05 to 5 mm. It is preferable that the insertion member 2 be flexible enough to be transformed into a sleeve. The insert member 2 is preferably made of a non-combustible material. The non-combustible material for the insert member 2 is one specified in the Building Standards Act and the Enforcement Order of the Building Standards Act. Examples of the non-combustible material for the insert member 2 include mortar, metal pipes such as steel sleeves, inorganic fibers, and molded bodies thereof.

[0118] As shown in Figure 1, the compartment penetration structure according to the first embodiment of the present invention employs the above-mentioned fire-resistant sheet as a fire-resistant material used in the fire prevention structure of a building. When the fire-resistant material of the present invention is used as the fire-resistant sheet 3B, as shown in Fig. 1, the fire-resistant sheet 3B is disposed on the inner peripheral surface of the insert member 2. Various means can be used to dispose the fire-resistant sheet 3B on the inner peripheral surface of the insert member 2. When the insert member 2 is sleeve-shaped, for example, the insert member 2 and the fire-resistant sheet 3B are prepared separately and fixed by known fixing means such as adhesive, pressure-sensitive adhesive, adhesive tape, etc. The insert member 2 and the fire-resistant sheet 3B may be fixed together in advance or may be fixed together at the construction site before construction. When the insert member 2 is capable of being transformed from a sheet shape to a sleeve shape, for example, a method can be used in which a fire-resistant sheet 3B is fixed to the sheet-shaped insert member 2 using a known fixing means such as an adhesive, pressure-sensitive adhesive, or adhesive tape, and then the insert member 2 is transformed into a sleeve shape so that the fixed fire-resistant sheet 3B becomes the inner surface. Here, the adhesive, pressure sensitive adhesive and adhesive tape are preferably made of a non-combustible material, a semi-non-combustible material or a flame retardant material, and a flame retardant may be blended into the adhesive, pressure sensitive adhesive or the like.

[0119] After the insert member 2 and the fire-resistant sheet 3B are placed in the compartment penetration portion 15, the fire-resistant sheet 3B extending outward from the through hole 13A is appropriately bent or folded to reduce its diameter as shown in Fig. 2, so that the fire-resistant sheet 3B closely surrounds the outer periphery of the insert 21. Then, a string-like member 22 is wound around the surrounding portion of the fire-resistant sheet 3B, and the fire-resistant sheet 3B is fixed to the insert 21 by the string-like member 22, so that one opening 13C of the compartment penetration portion 15 is covered by the fire-resistant sheet 3B. The string-like member 22 may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, a resin-coated wire such as Nejirikko (registered trademark) in which a metal wire is coated with resin, or a wire and fiber entangled member such as a mould. When a wire member is used, the fireproof sheet 3B can be fixed to the insert 21 simply by twisting or twisting it.

[0120] According to the compartment penetration structure of the first embodiment of the present invention, the insertion member 2 prevents communication between the hollow portion 13 and the outside of the partition portion 11, and since one opening 13C of the compartment penetration portion 15 is covered by the fire-resistant sheet 3B, communication between one opening 13C and the other opening 13D of the compartment penetration portion 15 is also prevented. Therefore, the compartment penetration structure of the second embodiment can provide the compartment penetration portion 15 with an appropriate fireproof structure. Furthermore, with the compartment penetration processing structure according to the second embodiment of the present invention, the insert member 2 having the fire-resistant sheet 3B arranged on its inner peripheral surface can be inserted into the compartment penetration part 15 through one of the openings 13C and attached, and then the one of the openings 13C can be covered with the fire-resistant sheet 3B. Therefore, the compartment penetration part 15 can be made fireproof with a small number of parts, and all work can be done from one side of the partition part 11 (the outer surface 11A side), improving workability. Furthermore, according to the compartment penetration processing structure of the first embodiment of the present invention, the fire-resistant sheet 3B covering the compartment penetration portion 15 has good thermal conductivity, so that the heat generated by a fire can be efficiently conducted throughout the entire structure, and the entire structure exhibits uniform fire resistance and fire extinguishing performance, thereby reducing damage due to the uniform fire resistance and fire extinguishing performance.

[0121] <Second embodiment> The second embodiment differs from the first embodiment in that the above-described fire-resistant laminate is used as a member used in the fire protection structure of a building, as shown in Fig. 2. Differences between the first embodiment and the second embodiment will be described below. In addition, in the following description of different embodiments, members having the same configuration will be assigned the same reference numerals. The compartment penetration treatment method according to the second embodiment of the present invention includes a step of providing a fire-resistant laminate in the compartment penetration part 15, as will be described below.

[0122] When the fireproof material of the present invention is used as a fireproof laminate 3C, as shown in Fig. 2, the fireproof laminate 3C is disposed on the inner peripheral surface of the insert member 2. Various means can be used to dispose the fireproof laminate 3C on the inner peripheral surface of the insert member 2. When the insert member 2 is sleeve-shaped, for example, the insert member 2 and the fire-resistant laminate 3C, which are prepared separately, may be fixed by a known fixing means such as an adhesive, a pressure-sensitive adhesive, an adhesive tape, etc. The insert member 2 and the fire-resistant laminate 3C may be fixed together in advance or may be fixed together at the construction site before construction. When the insert member 2 is capable of being transformed from a sheet shape to a sleeve shape, for example, a method can be used in which the fire-resistant laminate 3C is fixed to the sheet-shaped insert member 2 using a known fixing means such as an adhesive, pressure-sensitive adhesive, or adhesive tape, and then the insert member 2 is transformed into a sleeve shape so that the fixed fire-resistant laminate 3C becomes the inner surface. Here, the adhesive, pressure sensitive adhesive and adhesive tape are preferably made of a non-combustible material, a semi-non-combustible material or a flame retardant material, and a flame retardant may be blended into the adhesive, pressure sensitive adhesive or the like.

[0123] The fire-resistant resin layer 3C1 of the fire-resistant laminate 3C is preferably disposed on the side of the inserter 21. By disposing the fire-resistant resin layer 3C1 on the side of the inserter 21, in the event of a fire, the fire-resistant resin layer 3C1 can suppress the spread of flames along the inserter 21. Moreover, the fire-resistant resin layer 3C1 of the fire-resistant laminate 3C is preferably in contact with the insert 21. By having the fire-resistant resin layer 3C1 in contact with the insert 21, in the event of a fire, the fire-resistant resin layer 3C1 can efficiently suppress the spread of flames along the insert 21.

[0124] The heat conductive layer 3C2 of the fire-resistant laminate 3C is provided on the back side of the fire-resistant resin layer 3C1 when viewed from the insert 21 side, and is preferably laminated directly on the fire-resistant resin layer 3C1. By providing the heat conductive layer 3C2 on the back side of the fire-resistant resin layer 3C1, the heat generated by a fire can be efficiently conducted to the entire fire-resistant resin layer 3C1 by the heat conductive layer 3C2, and the entire fire-resistant resin layer 3C1 exhibits uniform fire resistance and fire extinguishing performance, thereby reducing damage due to the uniform fire resistance and fire extinguishing performance. Moreover, it is preferable that the heat conductive layer 3C2 of the fire-resistant laminate 3C is not in contact with the insert 21. Since the heat conductive layer 3C2 is not in contact with the insert 21, in the event of a fire, the fire-resistant resin layer 3C1 is not prevented from suppressing the spread of flames along the insert 21.

[0125] After the insert member 2 and the fire-resistant laminate 3C are placed in the compartment penetration portion 15, the fire-resistant laminate 3C extending outward from the through hole 13A is bent or folded as appropriate to reduce its diameter, as shown in Fig. 3, so that the fire-resistant laminate 3C closely surrounds the outer periphery of the inserter 21. Then, a string-like member 22 is wound around the surrounding portion of the fire-resistant laminate 3C, and the fire-resistant laminate 3C is fixed to the inserter 21 by the string-like member 22, so that one opening 13C of the compartment penetration portion 15 is covered by the fire-resistant laminate 3C. The string-like member 22 may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, a resin-coated wire such as Nejirikko (registered trademark) in which a metal wire is coated with resin, or a wire and fiber entangled member such as a mould. When a wire member is used, the fireproof laminate 3C can be fixed to the inserting member 21 simply by twisting or twisting.

[0126] In the compartment penetration structure according to the second embodiment of the present invention, the insert member 2 prevents communication between the hollow portion 13 and the outside of the partition portion 11, and one opening 13C of the compartment penetration portion 15 is covered by the fire-resistant laminate 3C, which also prevents communication between one opening 13C and the other opening 13D of the compartment penetration portion 15. Therefore, the compartment penetration structure according to the second embodiment can provide the compartment penetration portion 15 with an appropriate fireproof structure. Furthermore, with the compartment penetration treatment structure according to the second embodiment of the present invention, the insert member 2 having the fire-resistant laminate 3C arranged on its inner peripheral surface can be inserted into the compartment penetration part 15 through one of the openings 13C and attached, and then the one of the openings 13C can be covered with the fire-resistant laminate 3C. Therefore, the compartment penetration part 15 can be made fireproof with a small number of parts, and all work can be done from one side of the partition part 11 (the outer surface 11A side), improving workability. Furthermore, according to the compartment penetration processing structure of the second embodiment of the present invention, the fire-resistant laminate 3C covering the compartment penetration portion 15 has good thermal conductivity, so that the heat generated by a fire can be efficiently conducted throughout the entire structure, and the entire structure exhibits uniform fire resistance and fire extinguishing performance, thereby reducing damage due to the uniform fire resistance and fire extinguishing performance.

[0127] <Third embodiment> The third embodiment differs from the first embodiment in that the above-described fireproof sheet, modified into a sleeve shape, is used as an insert member in the fireproof structure of a building, as shown in Fig. 3. The differences between the first embodiment and the third embodiment will be described below. In addition, in the following description of different embodiments, the same reference numerals will be used to designate components having the same configuration.

[0128] As shown in FIG. 3, in the compartment penetration structure according to this embodiment, a fireproof sheet 3B is deformed into a sleeve shape and is inserted into the compartment penetration part 15 with an insert 21 passing through the inside. The fire-resistant sheet 3B is deformed into a sleeve shape so as to fit the shape of the inner peripheral surfaces of the through holes 13A and 13B that constitute the compartment penetration portion 15. That is, the fire-resistant sheet 3B is preferably formed into a sleeve shape so that its outer peripheral surface conforms to the shape of the inner peripheral surfaces of the through holes 13A and 13B. Since the shape of the inner peripheral surfaces of the through holes 13A and 13B is generally a circle, an ellipse, or a shape similar to these, the fire-resistant sheet 3B is preferably rolled into a sleeve shape, and is preferably formed into a circle, an ellipse, or a shape similar to these. Furthermore, when the fire-resistant sheet 3B is formed into a sleeve, the ends of the fire-resistant sheet 3B are faced to each other, and at this time, the ends may be adhered to each other with an adhesive, a pressure-sensitive adhesive, an adhesive tape, or the like. Here, the adhesive, pressure-sensitive adhesive, and adhesive tape are preferably made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material, and a flame retardant may be blended into the adhesive, pressure-sensitive adhesive, or the like. The adhesive tape includes a substrate and an adhesive layer provided on one side of the substrate, and the substrate and adhesive layer are preferably made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material, respectively. However, when the fire-resistant sheet 3B is formed into a sleeve shape, the ends of the fire-resistant sheet 3B are not limited to facing each other, and the ends may overlap each other to form the sleeve shape.

[0129] A cover material 4 that closes one opening 13C is provided at one end 3B1 of the sleeve-shaped fire-resistant sheet 3B. The means for providing the cover material 4 at one end 3B1 of the fire-resistant sheet 3B is not particularly limited, and examples include fixing it with known fixing means such as an adhesive, a pressure-sensitive adhesive, or an adhesive tape. Here, the adhesive, pressure-sensitive adhesive, or adhesive tape is preferably made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material, and it is recommended to blend a flame retardant or the like into the adhesive, pressure-sensitive adhesive, or the like. The cover material 4 is not particularly limited as long as it is a material that can close the opening 13C, and examples thereof include a metal sheet, a fiber sheet, and a resin sheet. The thickness of the cover material 4 is preferably 0.01 to 10 mm, more preferably 0.05 to 5 mm, and even more preferably 0.1 to 1 mm. When the thickness of the cover material 4 is within the above range, it can exhibit flexibility that allows it to bend or curve so as to surround the outer periphery of the insert 21 in close contact therewith, as will be described later.

[0130] After the sleeve-shaped fire-resistant sheet 3B is placed in the compartment penetration portion 15, the cover material 4 attached to one end portion 3B1 of the fire-resistant sheet 3B extends outward from the penetration hole 13A. As shown in Fig. 3, the cover material 4 is bent or folded as appropriate to reduce its diameter, thereby enclosing the insert 21 in close contact with the outer periphery. A string-like member 22 is then wound around the enclosing portion of the cover material 4, and the cover material 4 is fixed to the insert 21 by the string-like member 22, whereby one opening 13C of the compartment penetration portion 15 is covered by the cover material 4. The string-like member 22 may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, a resin-coated wire such as Nejirikko (registered trademark) in which a metal wire is coated with resin, or a wire and fiber entangled member such as a mould. When a wire member is used, the cover material 4 can be fixed to the insertion body 21 simply by twisting or twisting it.

[0131] According to the compartment penetration structure of the third embodiment of the present invention, the sleeve-shaped fire-resistant sheet 3B prevents communication between the hollow portion 13 and the outside of the partition portion 11, and one opening 13C of the compartment penetration portion 15 is covered by the cover material 4, which also prevents communication between one opening 13C and the other opening 13D of the compartment penetration portion 15. Therefore, the compartment penetration structure of the third embodiment can provide the compartment penetration portion 15 with an appropriate fireproof structure. Furthermore, the compartment penetration processing structure according to the third embodiment of the present invention can be constructed by inserting and attaching the sleeve-shaped fire-resistant sheet 3B into the compartment penetration part 15 from one opening 13C, and then covering one opening 13C with the cover material 4. Therefore, the compartment penetration part 15 can be made fireproof with a small number of parts, and all work can be done from one side of the partition part 11 (the outer surface 11A side), improving workability.

[0132] <Fourth embodiment> The fourth embodiment differs from the first embodiment in that the above-described fire-resistant laminate modified into a sleeve shape is used as an insert member in the fire protection structure of a building, as shown in Fig. 4. The differences between the first embodiment and the fourth embodiment will be described below. In the following description of different embodiments, the same reference numerals will be used to designate components having the same configuration.

[0133] As shown in FIG. 4, in the compartment penetration treatment structure according to this embodiment, a fire-resistant laminate 3C is deformed into a sleeve shape and is inserted into the compartment penetration part 15 with an insert 21 passing through the inside. The fire-resistant laminate 3C is deformed into a sleeve shape so as to fit the shape of the inner peripheral surfaces of the through holes 13A and 13B that constitute the compartment penetration portion 15. That is, the fire-resistant laminate 3C may be formed into a sleeve shape so that its outer peripheral surface conforms to the shape of the inner peripheral surfaces of the through holes 13A and 13B. Since the shape of the inner peripheral surfaces of the through holes 13A and 13B is generally a circle, an ellipse, or a shape similar thereto, the fire-resistant laminate 3C may be rolled into a sleeve shape, and may be formed into a circle, an ellipse, or a shape similar thereto. Furthermore, when the fire-resistant laminate 3C is formed into a sleeve, the ends of the fire-resistant laminate 3C are placed face to face, and at this time, the ends may be adhered to each other using an adhesive, a pressure-sensitive adhesive, an adhesive tape, or the like. Here, the adhesive, pressure-sensitive adhesive, and adhesive tape are preferably made of a non-combustible material, a quasi-non-combustible material, or a flame-retardant material, and a flame retardant may be blended into the adhesive, pressure-sensitive adhesive, or the like. The adhesive tape includes a substrate and an adhesive layer provided on one side of the substrate, and the substrate and the adhesive layer are preferably each made of a non-combustible material, a quasi-non-combustible material, or a flame-retardant material. However, when the fire-resistant laminate 3C is formed into a sleeve shape, the ends of the fire-resistant laminate 3C are not limited to facing each other, and the ends may overlap each other to form the sleeve shape.

[0134] The fire-resistant resin layer 3C1 of the fire-resistant laminate 3C is preferably disposed on the side of the inserter 21. By disposing the fire-resistant resin layer 3C1 on the side of the inserter 21, in the event of a fire, the fire-resistant resin layer 3C1 can suppress the spread of flames along the inserter 21. Moreover, the fire-resistant resin layer 3C1 of the fire-resistant laminate 3C is preferably in contact with the insert 21. By having the fire-resistant resin layer 3C1 in contact with the insert 21, in the event of a fire, the fire-resistant resin layer 3C1 can efficiently suppress the spread of flames along the insert 21.

[0135] The heat conductive layer 3C2 of the fire-resistant laminate 3C is provided on the back side of the fire-resistant resin layer 3C1 when viewed from the insert 21 side, and is preferably laminated directly on the fire-resistant resin layer 3C1. By providing the heat conductive layer 3C2 on the back side of the fire-resistant resin layer 3C1, the heat generated by a fire can be efficiently conducted to the entire fire-resistant resin layer 3C1 by the heat conductive layer 3C2, and the entire fire-resistant resin layer 3C1 exhibits uniform fire resistance and fire extinguishing performance, thereby reducing damage due to the uniform fire resistance and fire extinguishing performance. Moreover, it is preferable that the heat conductive layer 3C2 of the fire-resistant laminate 3C is not in contact with the insert 21. Since the heat conductive layer 3C2 is not in contact with the insert 21, in the event of a fire, the fire-resistant resin layer 3C1 is not prevented from suppressing the spread of flames along the insert 21.

[0136] A cover material 4 that closes one opening 13C is provided at one end 3C3 of the sleeve-shaped fire-resistant laminate 3C. The means for providing the cover material 4 at one end 3C3 of the fire-resistant laminate 3C is not particularly limited, and examples include fixing using known fixing means such as an adhesive, a pressure-sensitive adhesive, or an adhesive tape. Here, the adhesive, pressure-sensitive adhesive, or adhesive tape is preferably made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material, and it is advisable to blend a flame retardant or the like into the adhesive, pressure-sensitive adhesive, or the like. The cover material 4 is not particularly limited as long as it is a material that can close the opening 13C, and examples thereof include a metal sheet, a fiber sheet, and a resin sheet. The thickness of the cover material 4 is preferably 0.01 to 10 mm, more preferably 0.05 to 5 mm, and even more preferably 0.1 to 1 mm. When the thickness of the cover material 4 is within the above range, it can exhibit flexibility that allows it to bend or curve so as to surround the outer periphery of the insert 21 in close contact therewith, as will be described later.

[0137] After the sleeve-shaped fire-resistant laminate 3C is placed in the compartment penetration portion 15, the cover material 4 provided on one end portion 3C3 of the fire-resistant laminate 3C extends outward from the through hole 13A. As shown in Fig. 4, the cover material 4 is bent or folded as appropriate to reduce its diameter, so that the cover material 4 closely surrounds the outer periphery of the insert 21. A string-like member 22 is then wound around the surrounding portion of the cover material 4, and the cover material 4 is fixed to the insert 21 by the string-like member 22, so that one opening 13C of the compartment penetration portion 15 is covered by the cover material 4. The string-like member 22 may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, a resin-coated wire such as Nejirikko (registered trademark) in which a metal wire is coated with resin, or a wire and fiber entangled member such as a mould. When a wire member is used, the cover material 4 can be fixed to the insertion body 21 simply by twisting or twisting it.

[0138] According to the compartment penetration structure of the fourth embodiment of the present invention, the sleeve-shaped fire-resistant laminate 3C prevents communication between the hollow portion 13 and the outside of the partition portion 11, and one opening 13C of the compartment penetration portion 15 is covered by the cover material 4, which also prevents communication between one opening 13C and the other opening 13D of the compartment penetration portion 15. Therefore, the compartment penetration structure of the fourth embodiment can provide the compartment penetration portion 15 with an appropriate fireproof structure. Furthermore, the compartment penetration processing structure according to the fourth embodiment of the present invention can be constructed by inserting and attaching the sleeve-shaped fire-resistant laminate 3C into the compartment penetration part 15 from one opening 13C, and then covering one opening 13C with the cover material 4. Therefore, the compartment penetration part 15 can be made fireproof with a small number of parts, and all work can be done from one side of the partition part 11 (the outer surface 11A side), improving workability.

[0139] <Fifth embodiment> The fifth embodiment differs from the first embodiment in that the fireproof material, which is the fireproof putty described above, is used as a component for the fireproof structure of a building, as shown in Fig. 5. The differences between the first embodiment and the fifth embodiment will be described below. In addition, in the following description of different embodiments, components having the same configuration will be assigned the same reference numerals.

[0140] A receiving portion 6 for receiving the fireproof putty 3A is provided inside the insert 2 in the axial direction of the insert 21. The receiving portion 6 receives the fireproof putty 3A dispensed from the opening 13A of the compartment penetration 15 and contributes to filling the compartment penetration 15 with the fireproof putty 3A. The receiving portion 6 preferably has a surface inclined with respect to the axial direction of the insert 21, a surface perpendicular to the axial direction, or a combination thereof. From the viewpoint of adequately receiving the filler 5, it is more preferable that the receiving portion 6 includes a vertical surface. The receiving portion 6 may be provided integrally with the insert 2 or separately from the insert 2. When the receiving portion 6 is provided integrally with the insert 2, for example, a disk-shaped receiving portion 6 may be connected to the inner circumferential surface of the insert 2 as shown in FIG. 1. When the receiving portion 6 is separate, for example, a bottomed, cylindrical receiving portion 6 may be fitted into the insert 2. The receiving portion 6 has a hole 6A near the center of the bottom, and the inserter 21 passes through the hole 6A in the axial direction of the inserting member 2. The hole 6A may be circular, but may have any shape other than circular depending on the shape of the inserter 21. Furthermore, when the receiving portion 6 is made of a flexible material, the hole 6A may be smaller than the size of the inserter 21, and a notch may be used instead of the hole 6A. The receiving portion 6 is not particularly limited as long as it is made of a material that can receive the fire-resistant putty 3A, and examples thereof include resin-based materials, fiber-based materials, metal-based materials, glass, and wood, and may also be a composite material that combines two or more of these materials.

[0141] When a fireproof material that is a fireproof putty is used, it may be configured not to include the receiving portion 6. In that case, for example, the insert member 2 serves as a member that receives the fireproof putty 3A. Specifically, the fireproof putty 3A dispensed from the opening 13A of the compartment penetration portion 15 is received by the inner peripheral surface of the insert member 2, and the compartment penetration portion 15 can be filled by layering the fireproof putty 3A on the inner peripheral surface.

[0142] According to the compartment penetration structure of the fifth embodiment of the present invention, the insertion member 2 prevents communication between the hollow portion 13 and the outside of the partition portion 11, and since one opening 13C of the compartment penetration portion 15 is covered with the fire-resistant putty 3A, communication between one opening 13C of the compartment penetration portion 15 and the other opening 13D is also prevented. Therefore, the compartment penetration structure of the fifth embodiment can provide the compartment penetration portion 15 with an appropriate fireproof structure. Furthermore, according to the compartment penetration processing structure of the fifth embodiment of the present invention, the fire-resistant putty 3A covering the compartment penetration portion 15 has good thermal conductivity, so that the heat generated by a fire can be efficiently conducted throughout the entire structure, and the entire structure exhibits uniform fire resistance and fire extinguishing performance, thereby reducing damage due to the uniform fire resistance and fire extinguishing performance.

[0143] <Other embodiments> In the above description, the first to fifth embodiments have been shown as compartment penetration processing structures, but the first to fifth embodiments may be combined as appropriate. In other words, the embodiments shown in the above description may be combined as appropriate, or all of them may be combined. Furthermore, the compartment penetration treatment structure is not limited to the aspects shown in the above embodiments, and any configuration may be used as long as a fire-resistant material or a fire-resistant laminate is provided in the compartment penetration portion. For example, any configuration may be used as long as the fire-resistant material or the fire-resistant laminate is disposed inside the compartment penetration portion or so as to cover the opening of the compartment penetration portion. Furthermore, in the second and fourth embodiments, the fire-resistant laminate is shown as having a two-layer structure, but may have a three-layer or more structure.

[0144] The fire-resistant material of the present invention is not limited to being used in the compartment penetration structure as described above, but may be used in other ways as long as it constitutes a fire-resistant structure for a building. The fireproof material or fireproof laminate can also be used by being attached to fittings such as windows, shoji screens, doors, sliding doors, and other such doors. When the fireproof material or fireproof laminate of the present invention is used by being attached to fittings, the fireproof material or fireproof laminate may have a desired shape such as a sheet, block, or pillar, but a sheet-like fireproof sheet is preferably used. [Example]

[0145] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

[0146] <Flame retardant> Aluminum phosphite: APA100, manufactured by Taihei Chemical Industry Co., Ltd. Triphenyl phosphate: TPhP, manufactured by Tokyo Chemical Industry Co., Ltd.

[0147] <Endothermic agent> Aluminum hydroxide: BF013, manufactured by Nippon Light Metal Co., Ltd., average particle size 1 μm, thermal decomposition temperature 200°C, endothermic heat 1,000 J / g Magnesium hydroxide: Kisuma 10, manufactured by Kyowa Chemical Industry Co., Ltd., average particle size 0.9 μm, thermal decomposition temperature 280°C, endothermic heat 1,350 J / g

[0148] <Thermal Expandable Layered Inorganic Material> Thermally expandable graphite: ADT-351, manufactured by ADT

[0149] <Thermal conductive materials> Boron nitride (BN): UHP-S2, manufactured by Showa Denko K.K., thermal conductivity 200 W / m K, average particle size 0.7 μm, density 2.27 g / cm 3 Aluminum oxide (Al2O3): CB-P02, manufactured by Showa Denko K.K., thermal conductivity 20 W / m K, average particle size 2 μm, density 3.98 g / cm 3 Expanded graphite: EC1500, manufactured by Ito Graphite Co., Ltd., thermal conductivity 500 W / m K, average particle size 7 μm, density 2.24 g / cm 3

[0150] <Metal particles> Copper particles: FMC-SB, manufactured by Furukawa Chemicals, thermal conductivity 400 W / m K, average particle size 0.8 μm

[0151] <Resin> PVB: Polyvinyl butyral resin, degree of polymerization 1,700, degree of acetalization 75 mol%, amount of acetyl groups 3 mol%, amount of hydroxyl groups 22 mol%

[0152] <Dispersant> Polyether dispersant: ED-400, manufactured by Kusumoto Chemicals Co., Ltd.

[0153] <Plasticizer> Diisodecyl phthalate (DIDP): Special grade reagent, manufactured by Tokyo Chemical Industry Co., Ltd.

[0154] <Solvent> Ethanol (EtOH): Special grade reagent, manufactured by Tokyo Chemical Industry Co., Ltd. Toluene (PhMe): Special grade reagent, manufactured by Tokyo Chemical Industry Co., Ltd. Ethyl acetate (AcOEt): Special grade reagent, manufactured by Tokyo Chemical Industry Co., Ltd.

[0155] <Sheeting> <Coating film formation> According to the formulation shown in Table 1, a fire-resistant resin composition was obtained by mixing a flame retardant, heat-absorbing agent, thermally expandable inorganic material, thermally conductive material, resin, dispersant, plasticizer, and solvent in a bead mill ("Ready Mill" manufactured by Imex Co., Ltd.) for 60 minutes. The viscosity of the obtained fire-resistant resin composition was adjusted with a solvent to prepare a slurry. The slurry was applied to the release-treated surface of a release sheet and dried at 60°C for 24 hours to form a sheet by coating. The obtained sheet was used as a fire-resistant member after removing the release sheet.

[0156] <<Molded body>> A fire-resistant resin composition was obtained by mixing a flame retardant, heat-absorbing agent, thermally expandable inorganic material, thermally conductive material, resin, dispersant, plasticizer, and solvent in a bead mill ("Ready Mill" manufactured by Imex Co., Ltd.) for 60 minutes according to the formulation shown in Table 1. The obtained fire-resistant resin composition was fed into a single-screw extruder and extrusion-molded at 50°C to obtain an extrusion-molded product. The obtained extrusion-molded product was then rolled into a sheet of the desired thickness and used as a fire-resistant member.

[0157] [Table 1]

[0158] [Examples 1 to 8, Comparative Examples 1 to 3] Fire-resistant members (fire-resistant materials or fire-resistant laminates) were obtained by laminating the layer types shown in Table 1 according to the layer configurations shown in Table 2. Each fire-resistant member was evaluated as follows.

[0159] <Aspect ratio> The cross section of the fire-resistant member was observed with a scanning electron microscope to measure the aspect ratio. When the fire-resistant member contained thermally expandable graphite, the aspect ratio of the thermally expandable graphite was measured. When the fire-resistant member contained expanded graphite, the aspect ratio of the thermally expandable graphite was measured. When the fire-resistant member contained both thermally expandable graphite and expanded graphite, the average aspect ratio was measured.

[0160] <Expansion ratio> Test pieces (length 100 mm, width 100 mm, thickness 2.0 mm) made from the obtained fireproof materials of Examples 1 to 8 and Comparative Examples 1 to 3 were fed into an electric furnace and heated at 600°C for 30 minutes. Thereafter, the thickness of the test piece was measured, and the expansion ratio was calculated as (thickness of test piece after heating) / (thickness of test piece before heating).

[0161] <Residual hardness> The heated test piece for which the expansion ratio was measured was fed into a compression tester (Kato Tech Co., Ltd., "Finger Feeling Tester") and compressed to 0.25 cm 2 The specimen was compressed with an indenter at a speed of 0.1 cm / sec, and the stress at break was measured.

[0162] <Thermal conductivity> The thermal conductivity in the plane direction of each layer constituting the obtained fire-resistant members of Examples 1 to 8 and Comparative Examples 1 to 3 was measured using a laser flash thermal constant measurement device ("LFA447" manufactured by NETZSCH). The thermal conductivity in the plane direction of both surfaces of each layer constituting the fire-resistant member was measured, and the highest value was adopted.

[0163] <Residue adhesion> The weight of the sleeve before the fire resistance test and the weight of the sleeve residue remaining in contact with the penetration part after the fire resistance test were measured. The percentage of the sleeve weight remaining after the fire resistance test compared to before the fire resistance test was calculated and used as a measure of adhesion to the concrete structure.

[0164] <Residue shape retention> The above-mentioned residue hardness is an index of the hardness of the residue after expansion, but since the measurement is limited to the surface portion of the residue, it may not be an index of the hardness of the entire residue, so shape retention was measured as an index of the hardness of the entire residue. The shape retention of the residue was measured by lifting both ends of the test piece for which the expansion ratio was measured by hand and visually observing how easily the residue crumbled. If the test piece could be lifted without crumbling, it was evaluated as passing (PASS), and if the test piece collapsed and could not be lifted, it was evaluated as failing (FAIL).

[0165] <Fire resistance test> A 160mm diameter opening was drilled in the concrete frame, and a PVC100 VU pipe (outer diameter 114mm, thickness 3.1mm, JIS standard K6741) was passed through it and piped 300mm below the floor and 500mm above the floor. The resulting fire-resistant member was bent into a sleeve shape and installed in the opening. The pipe was positioned so that there was a clearance of 10mm or more between the sleeve and the pipe, and heated for 2 hours in a horizontal furnace according to the ISO834 heating curve. A pass was evaluated if the temperature of the penetrating pipe 25mm above the floor was less than the initial temperature + 180°C and no flame broke out. A fail was evaluated if the temperature was more than the initial temperature + 180°C or if the above-floor pipe penetrated and broke out.

[0166] <Impact resistance> The sleeve was left in a -10°C environment for one week, then dropped from a height of 3m onto a concrete floor to check for deformation or damage to the sleeve. If there was no obvious deformation or damage to the sleeve upon visual inspection, it was rated as pass (PASS), and if there was deformation or damage even once, it was rated as fail (FAIL).

[0167] [Table 2]

[0168] The measurement results of the aspect ratio, expansion ratio, residue hardness, thermal conductivity, residue adhesion, residue shape retention, fire resistance test, and impact resistance for Examples 1 to 8 and Comparative Examples 1 to 3 are shown in Table 2. In Examples 1 to 8, the thermal conductivity was good, the residue was firmly held, and the fire resistance test was passed. In Comparative Examples 1 to 3, the thermal conductivity was poor, the residue was not firmly held, and the test was failed.

[0169] As is clear from the results of the above examples, the present invention has made it possible to provide a fire-resistant resin composition that can effectively transfer heat and continuously suppress temperature rise in the event of ignition due to the continuous high temperature conditions that occur during fire-resistant treatment of compartment penetrations, and that has fire resistance. [Explanation of symbols]

[0170] 2 Insertion member 3A fireproof putty 3B Fireproof Sheet 3C fire-resistant laminate 3C1 fireproof resin layer 3C2 thermal conductive layer 4 Cover material 5 Filling material 6 Receiving part 6A hole 11 Partition 12A, 12B wall material 13 Hollow part 13A,13B through hole 13C,13D opening 15 Compartment penetration 21 Penetrator 22 String-like member

Claims

1. A fire-resistant resin layer containing a fire-resistant additive containing thermally expandable graphite and a resin in a ratio of 50 to 1,000 parts by mass of the fire-resistant additive to 100 parts by mass of the resin; a thermally conductive layer containing a thermally conductive material, metal particles, and a resin, the thermally conductive material being 50 to 1,200 parts by mass and the metal particles being 100 to 1,500 parts by mass relative to 100 parts by mass of the resin; A fire-resistant laminate for use in a fireproof structure of a building, wherein the fire-resistant resin layer has a thickness of 0.1 to 20 mm, and the heat-conductive layer has a thickness of 0.1 to 20 mm.

2. A fire-resistant laminate as described in claim 1, wherein the fire-resistant additive further includes a flame retardant and / or a heat-absorbing agent.

3. 3. The fire-resistant laminate according to claim 1, wherein the thermally conductive material is at least one selected from the group consisting of boron nitride, aluminum oxide, and expanded graphite.

4. The fire-resistant laminate according to any one of claims 1 to 3, wherein the metal particles are at least one selected from the group consisting of aluminum particles, stainless steel particles, tungsten particles, zinc particles, duralumin particles, magnesium particles, molybdenum particles, beryllium particles, calcium particles, gold particles, silver particles, and copper particles.

5. A compartment penetration processing structure that is formed in a partition of a building and has a compartment penetration part into which a long penetrating body is inserted as a fireproof structure, A compartment penetration treatment structure, wherein the fire-resistant laminate according to any one of claims 1 to 4 is provided at the compartment penetration part.

6. A compartment penetration processing method for making a compartment penetration part formed in a partition part of a building and into which a long penetrating body is inserted into a fireproof structure, A compartment penetration treatment method, comprising the step of providing the fire-resistant laminate according to any one of claims 1 to 4 at the compartment penetration portion.

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