JP2000230287A - Foamed refractory laminate and method of forming the same - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a foamed refractory laminate excellent in durability and weather resistance and capable of exhibiting good refractory performance over a long period of time. [MEANS FOR SOLVING PROBLEMS] A laminate comprising a protective layer containing a resin component and a pigment laminated on a main material layer having foaming fire resistance, wherein the pigment volume concentration of the protective layer is 10% or more. Foamed refractory laminate. 2. After forming the main material layer on the base material with the foamed refractory paint, a protective layer containing a resin component and a pigment and having a pigment volume concentration of 10% or more is laminated. Forming method. 3. A method for forming a foamed refractory laminate, comprising: laminating a foamed refractory sheet on a substrate; and then laminating a protective layer containing a resin component and a pigment and having a pigment volume concentration of 10% or more.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel foamed refractory laminate and a method for forming the same.

[0002]

2. Description of the Related Art When structures such as buildings and civil engineering structures are exposed to high temperatures due to fires or the like, there is a problem that the physical strength of the steel frame and concrete of these structures rapidly decreases. On the other hand, a method has been adopted in which a refractory coating material is applied to a steel frame or the like as a base material to delay a rise in temperature of the base material and temporarily suppress a decrease in physical strength.

[0003] As typical methods, for example, 1) an inorganic fibrous substance such as rock wool, asbestos, glass fiber, etc .;
Wet refractory coating in which a lightweight aggregate such as vermiculite, 3) an inorganic powder containing water of crystallization is appropriately mixed, kneaded with water, and a paste or slurry coating material composition is thickened on the substrate surface. Methods are known.

[0004] However, in this coating material composition, depending on the type of material used, for example, a one-hour fire resistance performance for a column, a beam, or the like of a steel-framed reinforced concrete structure (when heated for one hour in a standard heating curve, the steel material temperature increases). Is 350 ° C on average
Below, the maximum temperature must be 450 ° C or less)
A coating thickness of about 20 to 40 mm is required, and a considerable thickness is required.

[0005] For this reason, a relatively large amount of material must be carried into the construction site, which imposes a heavy burden on work and cost. Further, under conditions where drying is difficult such as in winter, it takes time to dry the coating material composition. In addition, due to the thickening, the construction portion may protrude greatly from the base material, giving a sense of oppression in appearance. Further, there is a problem that the thicker the layer, the more easily the coating layer peels off or falls off. Therefore, development of a lighter coating material composition is required.

As another method of imparting fire resistance to a substrate,
2. Description of the Related Art There is known a method in which a coating film foams with a rise in temperature due to a fire or the like, thereby applying a foamed refractory paint which imparts fire resistance to a substrate by various methods. The foamed refractory paint contains a foaming component that is decomposed by a rise in temperature to generate a nonflammable gas, and a component that is carbonized to form a porous carbonized layer. That is, the fire extinguishing effect is exhibited by the generation of the noncombustible gas, and the heat insulating effect is exhibited by forming the porous carbonized layer by the carbonized component.

According to the foamed refractory paint, even in a normal state, the coating film is foamed at several times to several tens times by heating or the like to form an effective heat-insulating layer, even if it is thin, usually several mm or less. it can. Therefore, there is an advantage that the coating film can be made extremely thin compared to a wet type fire-resistant coating material, the feeling of oppression is small, and a clean feeling can be obtained. Further, compared to the wet type refractory coating material, the number of materials used is small, and problems in operation can be solved.

Recently, refractory coating with dry sheets has also been performed. This is a method of coating a dry sheet prepared in advance on a substrate. As this dry sheet, for example, non-combustible fibers in the form of non-woven fabric, non-combustible non-woven fabric, a cloth-like material such as woven fabric impregnated with a foamed refractory paint,
It is known that a foamed refractory paint is laminated on a sheet made of a non-combustible material such as aluminum foil. All of these dry sheets are being put to practical use widely because their thickness can be easily controlled and curing is not required. Among the fire-resistant coatings made of such dry sheets, foamed fire-resistant sheets of a type that has a small thickness, particularly at the time of construction, and foams to form a carbonized layer at the time of fire have been spotlighted.

[0009]

However, since the components constituting these foamed refractory paints or foamed refractory sheets must be those having high hydrophilicity as essential components, the formed foamed refractory layer is not suitable for rainfall, Deterioration easily progresses over time due to dew condensation, etc., and its durability (particularly water resistance)
Is not enough. If such deterioration progresses,
Original foaming is not performed, and the originally designed fire resistance cannot be exhibited.

On the other hand, in order to improve the durability of the foamed refractory layer, there has been proposed a method of further providing a protective finish layer on the foamed refractory layer. However, when the protective finish layer is provided on the foamed refractory layer, the protective finish layer may hinder the foaming and carbonization of the foamed refractory layer, which may result in impairing the fire resistance performance.

Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to provide a foamed refractory laminate which is excellent in durability and weather resistance and can exhibit good refractory performance for a long period of time. Main purpose.

[0012]

As a result of intensive studies, the present inventors have found that the above object can be achieved by laminating and integrating a specific protective layer on a foamed refractory layer. Was completed.

That is, the present invention relates to the following foamed refractory laminate and a method for forming the same.

1. A laminate comprising a protective layer containing a resin component and a pigment laminated on a main material layer having foaming fire resistance, wherein the pigment volume concentration of the protective layer is 10% or more. Foamed refractory laminate.

2. A main layer of a foamed refractory paint is formed on a base material using a foamed refractory paint, and a protective layer containing a resin component and a pigment and having a pigment volume concentration of 10% or more is laminated. Forming method.

3. After laminating the foamed refractory sheet on the substrate, it contains a resin component and a pigment, and has a pigment volume concentration of 10
%. A method for forming a foamed refractory laminate, comprising laminating a protective layer having a percentage of at least 1%.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on its embodiments.

The foamed refractory laminate of the present invention is a laminate in which a protective layer containing a resin component and a pigment is laminated on a main material layer having foamed refractory property, and the pigment volume of the protective layer is The concentration is 10% or more.

1 Foamed Fireproof Laminate (1) Main Material Layer The foamed fireproof main material layer of the present invention (hereinafter also referred to as “main material layer”) is provided when the ambient temperature reaches a predetermined foaming temperature due to fire or the like. It foams to form a carbonized heat insulating layer. Its components include a resin component, a flame retardant, a foaming agent, a carbonizing agent, and a filler as main components.

Examples of the resin component include vinyl toluene-butadiene copolymer, vinyl toluene-acrylic ester copolymer, vinyl toluene-methacrylic ester copolymer, styrene-butadiene copolymer, ethylene-methacrylic ester Resins such as copolymers or ternary copolymers of two kinds of monomers constituting these copolymers with acrylic acid monomers, methacrylic acid monomers and the like can be mentioned. In this case, as the acrylic acid monomer or methacrylic acid monomer in the copolymer containing an acrylic acid ester component or a methacrylic acid ester component, for example, methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate,
Ethylhexyl acrylate, 2-ethylhexyl methacrylate, n-butyl acrylate, n-butyl methacrylate, 2-hydroxyethyl acrylate, 2-
Examples include hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, acrylamide, glycidyl acrylate, glycidyl methacrylate, and the like. These resins are: They can be used alone or in combination of two or more.

As components other than the binder, components used in a known foamed refractory paint or foamed refractory sheet,
For example, a flame retardant, a foaming agent, a carbonizing agent, a filler and the like may be contained. These components exhibit functions such as foaming of the main material layer, formation of a carbonized layer, and generation of non-combustible gas by a mutual action of a fire when a fire occurs.

Flame retardants generally have a dehydrating and cooling effect during a fire,
It exhibits at least one effect such as an incombustible gas generation effect and a binder carbonization promotion effect, and has an effect of preventing or suppressing the combustion of the binder. The flame retardant is not particularly limited as long as it has such an effect, and the same flame retardant as in a known foamed refractory paint or foamed refractory sheet can be used.
For example, tricresyl phosphate, diphenylcresyl phosphate, diphenyloctyl phosphate, tri (β-chloroethyl) phosphate, tributylphosphate, tri (dichloropropyl) phosphate, triphenylphosphate, tri (dibromopropyl) phosphate Organic phosphorus compounds such as fate, chlorophosphonate, bromophosphonate, diethyl-N, N-bis (2-hydroxyethyl) aminomethylphosphate, di (polyoxyethylene) hydroxymethylphosphonate; chlorination Chlorine compounds such as polyphenyl, chlorinated polyethylene, diphenyl chloride, triphenyl chloride, pentachloride fatty acid ester, perchloropentacyclodecane, chlorinated naphthalene, and tetrachlorophthalic anhydride; Antimony compounds such as antimony and antimony pentachloride; phosphorus compounds such as phosphorus trichloride, phosphorus pentachloride, ammonium phosphate and ammonium polyphosphate; and inorganic compounds such as zinc borate and sodium borate. These can be used alone or in combination of two or more.

In the present invention, ammonium polyphosphate is particularly preferred. When ammonium polyphosphate is used, the dehydration cooling effect and the incombustible gas generation effect can be particularly favorably exhibited, so that the flame retardant effect is high, and there is also an effect that the content of the foaming agent can be reduced. It has advantages over other flame retardants.

In general, the foaming agent plays a role of generating a nonflammable gas at the time of fire, foaming the carbonizing binder and the carbonizing agent, and forming a carbonized heat insulating layer having pores. The foaming agent is not particularly limited as long as it has such an effect, and the same foaming agent as that of a known foamed refractory paint or foamed refractory sheet can be used. For example, melamine and its derivatives, dicyandiamide and its derivatives, azodicarbonamide, urea, thiourea and the like can be mentioned. These can be used alone or in combination of two or more. Among these, melamine, dicyandiamide, azodicarbonamide and the like are preferable because of their excellent nonflammable gas generation efficiency. In particular, melamine can be more preferably used.

The carbonizing agent generally has a function of forming a thick carbonized heat insulating layer having better heat insulating properties by dehydrating and carbonizing itself together with the carbonization of the binder by fire. The carbonizing agent is not particularly limited as long as it has such an effect, and the same carbonizing agent as that used in a known foamed refractory paint or foamed refractory sheet can be used. Examples include polyhydric alcohols such as pentaerythritol, dipentaerythritol, and trimethylolpropane; starch, casein, and the like. These can be used alone or in combination of two or more.

In the present invention, dipentaerythritol is particularly preferred because of its excellent dehydration cooling effect and carbonizing heat insulating layer forming effect.

The filler generally has an effect of improving the strength of the carbonized heat insulating layer and enhancing fire resistance. The filler is
The filler is not particularly limited as long as it has such an effect, and the same fillers as used in known foamed refractory paints or foamed refractory sheets can be used. For example, silicates such as talc; carbonates such as calcium carbonate and sodium carbonate; aluminum oxide;
Metal oxides such as titanium dioxide and zinc oxide; and natural minerals such as clay, clay, shirasu and mica. These can be used alone or in combination of two or more. Among these fillers, titanium dioxide is more preferred.

The mixing ratio of each component is not particularly limited as long as foaming is performed well in the event of a fire and a carbonized heat-insulating layer having a desired heat-insulating property can be formed. On the other hand, the flame retardant may be 200 to 600 parts by weight, the foaming agent 40 to 150 parts by weight, the carbonizing agent 40 to 150 parts by weight, and the filler 50 to 160 parts by weight. Within this range, in particular, the foaming ratio of the carbonized heat insulating layer is high, the foaming is uniform, and more excellent heat insulating effect, strength and the like can be obtained.

In the present invention, in addition to these components, reinforcing fibers, coloring pigments and the like can be appropriately compounded as required.
Examples of the reinforcing fibers include inorganic fibers such as rock wool, glass fibers, silica-alumina fibers, and carbon fibers, and organic fibers such as pulp fibers, polypropylene fibers, vinyl fibers, and aramid fibers.

As the color pigment, a general paint pigment (organic pigment / inorganic pigment) can be used. In the present invention, inorganic pigments such as red iron oxide, graphite, yellow iron oxide, titanium yellow, chrome green, ultramarine blue, and cobalt blue are particularly preferred. Further, expandable graphite, unexpanded vermiculite and the like may be blended in order to further enhance the fire resistance performance.

Further, in the present invention, if necessary, a plasticizer such as dibutyl phthalate, dioctyl phthalate, chlorinated paraffin and the like may be added. However, if the added amount of the plasticizer increases, the stain resistance may decrease. Therefore, it is preferable that the added amount be as small as possible.

The thickness of the main material layer may be appropriately set depending on the application site and the like, but is usually about 0.2 to 5 mm, preferably 0.5 to 2 mm. If less than 0.2mm,
Sufficient fire resistance may not be obtained. Also, 5mm
When it exceeds, the improvement of the fire resistance performance corresponding to the thickness may not be sufficiently obtained. However, 5m if necessary
The thickness may exceed m.

(2) Protective Layer The protective layer in the present invention contains a resin component and a pigment, and has a pigment volume concentration (PVC) of 10% or more of the protective layer.
It is preferably at least 20%, more preferably at least 30%. In the present invention, the pigment volume concentration indicates a ratio of the pigment volume to the total coating film volume. Pigment volume concentration is 10%
If the ratio is less than the above range, the foaming of the main material layer is hindered, so that sufficient fire resistance may not be obtained in some cases. Note that the upper limit of the pigment volume concentration may be generally about 80%.

The resin component is not particularly limited, and a known or commercially available resin component can be used. For example, acrylic resin, urethane resin, acrylic silicone resin, epoxy resin, vinyl acetate resin, unsaturated polyester resin, polyamide resin, chlorinated polyolefin resin,
Examples include petroleum resins, silicon resins, and fluorine resins. These can be used alone or in combination of two or more. Among them, acrylic resins, urethane resins, acrylic silicon resins, epoxy resins, fluorine resins, and the like are preferably used because they are particularly excellent in water resistance and weather resistance. The content of the resin component in the coating film may be appropriately set so that the pigment volume concentration is 10% or more.

In the present invention, a resin component in which the protective layer has a higher thermal decomposition temperature than the foaming temperature of the main material layer (usually set at 270 to 350 ° C.) can be suitably employed. Such a resin component is generally excellent in durability and weather resistance, and can suitably produce a foamed refractory laminate capable of exhibiting good refractory performance over a long period of time. Therefore, in the present invention, it is also possible to provide a protective layer having a thermal decomposition temperature higher than the foaming temperature of the main material layer by 5 ° C. or more, particularly higher by 10 ° C. or more. For example,
If the foaming temperature of the main material layer is 330 ° C., the thermal decomposition temperature is 3
A protective layer at 40 ° C. can also be employed. Thereby, in the present invention, it is possible to use a thermosetting resin which tends to increase the thermal decomposition temperature of the protective layer.

Here, the term "thermal decomposition temperature of the protective layer" corresponds to a temperature at which molecular bonds of a resin component, which is a main component of the protective layer formed on the unfoamed main material layer, are almost cleaved. It is. The thermal decomposition temperature of such a protective layer can be measured from the temperature at which a thermogravimetric curve is drawn on the unfoamed protective layer with a thermogravimetric analyzer and the thermogravimetric curve sharply decreases.

The pigment is not particularly limited, and known or commercially available pigments can be used. For example, inorganic pigments such as titanium oxide, zinc oxide, carbon black, ferric oxide (bengara), lead chromate (molybdate orange), graphite, yellow iron oxide, ocher, ultramarine, cobalt green, azo-based pigments, Organic pigments such as naphthol, pyrazolone, anthraquinone, perylene, quinacridone, disazo, isoindolinone, benzimidazole, phthalocyanine, quinophthalone, etc., heavy calcium carbonate, clay, kaolin, talc, sedimentation Extenders such as barium sulfate, barium carbonate, white carbon, and diatomaceous earth; These can be used alone or in combination of two or more.

The pigments of the present invention also include aggregates and the like. The aggregate is not particularly limited, and known or commercially available aggregates can also be used. Therefore, crushed natural stone,
Colored aggregates and the like can also be used. For example, marble,
Granite, serpentine, granite, fluorite, dolomite, feldspar, quartzite,
Pulverized materials such as silica sand, porcelain / ceramic pulverized materials, glass pulverized materials, glass beads, resin pulverized materials, resin beads, metal particles, and the like, or those obtained by coloring and coating the surfaces of these materials. These can be used alone or in combination of two or more.

In the protective layer of the present invention, various additives may be contained as needed within a range not to impair the effects of the present invention. Examples include plasticizers, preservatives, fungicides, defoamers, leveling agents, pigment dispersants, anti-settling agents, anti-sag agents, ultraviolet absorbers, and antioxidants.

The thickness of the protective layer may be appropriately set depending on the type of the main material layer or the protective layer, the application site, and the like, but is usually at least 10 μm or more, preferably 20 μm or more. If it is less than 10 μm, durability, weather resistance, etc. may be insufficient.

(3) Finishing Layer In the present invention, a finishing layer can be further laminated on the protective layer, if necessary. By forming the finishing layer, the progress of deterioration of the main material layer over time can be more effectively suppressed, and it has a role of maintaining fire resistance performance, and can also provide an aesthetic appearance. Therefore, the main component constituting the finishing layer can be used without any particular limitation as long as it mainly has the above function.

The finishing layer can usually contain a resin component and a pigment as main components, but may be a clear layer composed of only the resin component. In addition, various additives can be blended as needed. These resin components,
Pigments, additives, and the like may be the same as the components used in the protective layer.

The thickness of the finishing layer may be appropriately set depending on the type of the main material layer, the protective layer or the finishing layer, the application site, and the like, but is usually at least 10 μm or more, preferably 20 μm or more. If it is less than 10 μm, durability, weather resistance, etc. may be insufficient.

2 Formation of Foamed Refractory Laminate The foamed refractory laminate of the present invention can be formed by any method. Basically, the formation of each layer can be carried out by preparing a paint containing the essential components of each layer and forming the coating film. For example, using the above paint,
Spray gun, airless spray gun, roller coating,
A main material layer, a protective layer or a finishing layer can be formed by applying by a known coating method such as brush coating, spray coating by a pumping machine, or iron coating and drying. In preparing the coating material, a diluting solvent can be used as necessary. Such a solvent is not particularly limited as long as it can prepare a uniform coating without reacting with each component. Examples include aromatic solvents such as toluene and xylene; and aliphatic solvents such as ketones, glycol esters, and mineral spirits. The paint can be prepared according to a conventional method. For example, a coating material can be prepared by charging a resin component into a mixing tank and stirring the mixture with a dissolver or the like while sequentially charging other components.

In particular, the main material layer can be formed by applying the coating composition on a base material as described above, but it is also possible to use a pre-processed sheet. In the case of forming with a coating composition, it is possible to cover even a complicated portion. On the other hand, when the sheet is formed in the form of a sheet, the thickness can be easily controlled and curing is not required.

Accordingly, the foamed laminate of the present invention is, for example,
After forming the main material layer on the base material with the foamed refractory paint, the protective layer is laminated, or the foamed refractory sheet is laminated on the substrate, and then the protective layer is laminated to form the foamed refractory laminate. Can be formed. When a foamed refractory sheet is used, a protective layer may be formed on the foamed refractory sheet in advance of laminating the foamed refractory sheet on a substrate, and a finishing layer may be further formed as necessary. Can be. As described above, in the present invention, each layer may be formed in any order as long as the foamed laminate can be formed.

Although the substrate is not particularly limited, for example, steel frames (columns, beams, etc.), partition walls, fireproof doors, fireproof safes, tunnel inner walls, fuel tanks, solvent storage tanks,
Gas / oil pipelines or their supports; protective covers for equipment that may generate sparks, such as motors, pumps, and generators; sealing materials for penetrations in fire protection compartments, electric wires, and the like. Among these, it is preferable to apply a rust-preventive paint in advance as a rust-preventive treatment, particularly on a portion formed of a metal, for example, H steel, a steel round pillar, a steel prism, and the like. In addition, the foamed refractory laminate of the present invention can be applied not only to concrete and metal, but also to wood members, resin members, and the like.

The foamed refractory laminate of the present invention can be laminated on a refractory material in order to improve the refractory performance. Examples of refractory materials include, for example, calcium silicate board, perlite cement board, gypsum board, rock wool board, glass wool insulation board, asbestos slate board, foam lightweight concrete board, foam mortar board, foam gypsum board, lightweight concrete board, cement Extruded plate, inorganic siding,
Sheets, mats, blankets, and the like made of molded plates such as metal siding, rock wool, ceramic wool, glass wool, slag wool, and the like are included. The foamed refractory laminate may be laminated on a refractory material according to a known method.

Further, for the purpose of improving fire protection, it is also possible to laminate on an organic heat insulating material. Examples of the organic heat insulating material include polystyrene foam, polyethylene foam, urethane foam, and phenol foam, or a material obtained by integrating these with a surface material such as a metal foil or an inorganic molded plate. The foamed refractory laminate may be laminated on the organic heat insulating material according to a known method.

[0050]

According to the present invention, durability and weather resistance can be imparted to the main material layer, particularly by forming a protective layer. On the other hand, the protective layer can exhibit the original fire resistance performance without hindering the foamed carbonization of the main material layer. As a result, good fire resistance can be maintained over a long period of time.

The mechanism by which the protective layer of the present invention does not inhibit foaming of the main material layer during heating is as follows: 1) When the temperature rises, the amount of pigment contained in the protective layer is relatively large. It is related that the internal stress is relaxed or dispersed, or 2) that the adhesion between the main material layer and the finishing layer under heating can be reduced by increasing the pigment volume concentration in the protective layer. Conceivable.

[0052]

According to the foamed refractory laminate of the present invention, since the main material layer and the protective layer are integrally laminated, excellent durability and weather resistance can be exhibited, resulting in good fire resistance performance for a long period of time. Can be demonstrated.

In particular, the protective layer according to the present invention comprises
As long as C is controlled, it does not prevent foaming of the main material layer, so that the type of resin component in the protective layer can be used without being limited. As a result, a resin component having excellent weather resistance and durability is adopted. it can. Thereby, the desired foamed fire resistance performance can be maintained for a long period of time.

Further, when a finishing layer is employed in the present invention, the progress of deterioration of the main material layer over time can be more effectively suppressed. Further, by forming the finishing layer, it is possible to contribute to improvement of aesthetic appearance.

[0055]

EXAMPLES Examples and comparative examples are shown below to further clarify the features of the present invention.

Examples and Comparative Examples 100 parts by weight of an acrylic resin, 87 parts by weight of melamine, 87 parts by weight of dipentaerythritol, 315 parts by weight of ammonium polyphosphate, and 52 parts by weight of titanium oxide. Was produced as a main material layer. The thermo-mechanical analyzer “TM
A8140C "(manufactured by Rigaku Corporation) and found to be 300 ° C.

On the foamed refractory sheet, the protective layer paint and the finish layer paint shown in Table 1 were applied in order of 0.15.
It was applied at kg / m ^{2 and} cured at room temperature for 7 days to obtain a foamed refractory laminate. The thermal decomposition temperatures of the protective layer and the finishing layer were measured using a thermogravimetric analyzer “TG8101D” (manufactured by Rigaku Corporation).

An acrylic adhesive was applied to the back surface (foamed refractory sheet) of the obtained foamed refractory laminate and attached to a hot-rolled steel plate (300 mm × 300 mm × 2.3 mm).
The specimen was cured at room temperature for 24 hours.

[0059]

[Table 1]

The prepared test specimen was used in accordance with JIS A 1304, "Fire resistance test method for building structural parts". Based on the standard curve defined in "Heating grade; Appendix 1", the specimen was heated and heated in a heating furnace, and the elapsed time (min) when the average backside temperature of the hot-rolled steel sheet reached 550 ° C. ) Was defined as fire resistance, and the foaming ratio of the test piece with respect to the film thickness before heating was measured. Table 2 shows the combination of the protective layer and the finishing layer and the test results.
Shown in

[0061]

[Table 2]

Examples 1 to 3 are the foamed refractory laminates of the present invention and were excellent in fire resistance performance. In contrast, Comparative Example 1
In Nos. 2 and 3, the pigment volume concentration of the protective layer was low, and sufficient fire resistance was not obtained.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hideo Motoki 1-25-10 Shimizu, Ibaraki-shi, Osaka SK Kaken Co., Ltd. No. 1 Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Hideaki Kuwana 2-19-1, Tobita-shi, Chofu-shi, Tokyo Kashima Construction Co., Ltd. Technical Research Institute F-term (reference) 2E001 DE01 GA24 GA42 GA44 HD11 HF12 JA06 JA14 JB01 JD01 JD02 4J038 BA112 BA192 CB061 CC021 CG141 CG171 HA216 HA406 HA476 JA13 JA21 JB16 JB23 JB24 JB36 JC05 JC24 KA07 KA08 KA12 NA03 NA13 NA15

Claims (7)

[Claims] 1. A laminate comprising a protective layer containing a resin component and a pigment laminated on a main material layer having foaming and fire resistance,
Further, the foamed refractory laminate has a pigment volume concentration of the protective layer of 10% or more. 2. The foamed refractory laminate according to claim 1, wherein the resin component is at least one of an acrylic resin, a urethane resin, an acrylic silicone resin, an epoxy resin and a fluorine resin. 3. The foamed refractory laminate according to claim 1, wherein the protective layer has a thermal decomposition temperature higher than the foaming temperature of the main material layer. 4. The foamed refractory laminate according to claim 1, wherein a finish layer is further laminated on the protective layer. 5. A method according to claim 1, wherein a main material layer is formed on the base material with the foamed refractory paint, and then a protective layer containing a resin component and a pigment and having a pigment volume concentration of 10% or more is laminated. A method for forming a foamed refractory laminate. 6. A foamed refractory laminate characterized in that after laminating a foamed refractory sheet on a substrate, a protective layer containing a resin component and a pigment and having a pigment volume concentration of 10% or more is laminated. Method. 7. The method for forming a foamed refractory laminate according to claim 6, wherein a finish layer is further laminated on the protective layer.