Flame-retardant materials

Abstract

To provide a novel flame retardant material having excellent flame retardancy.SOLUTION: In one embodiment of the present invention, the flame retardant material is formed from a resin composition (A) comprising a binder resin, wherein, a weight loss is 48 wt.% or less as measured by the thermogravimetric analysis of scanning from the room temperature to 1000°C in an air atmosphere at a rate of temperature rise of 50°C / min.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to flame retardant materials. [Background technology]

[0002] Flame retardancy is one of the safety requirements for buildings, vehicles, etc. Flame retardant materials have been proposed as materials for imparting such flame retardancy (for example, Patent Documents 1 to 4).

[0003] As a means for imparting flame retardancy to a flame-retardant material, for example, a flame retardant (e.g., a halogen-based flame retardant or an inorganic flame retardant) appropriate for the intended use is appropriately selected and mixed into the flame-retardant material, a flame-retardant resin appropriate for the intended use is used as the main component of the flame-retardant material, or a flame-retardant paint (e.g., an inorganic paint) is applied as a coating.

[0004] The present inventors have conducted extensive research into new means for achieving flame retardancy, and as a result have discovered a new mechanism for achieving flame retardancy and established a means for realizing this mechanism, thereby providing a new flame-retardant material. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-186333 [Patent Document 2] Patent No. 4491778 [Patent Document 3] Patent No. 4539349 [Patent Document 4] Japanese Patent Application Laid-Open No. 2014-231597 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a new flame-retardant material having excellent flame retardancy. [Means for solving the problem]

[0007] The flame-retardant material of the present invention comprises: A flame-retardant material formed from a resin composition (A) containing a binder resin, The weight loss measured by thermogravimetric analysis in an air atmosphere at a temperature increase rate of 50°C / min from room temperature to 1000°C is 48% by weight or less.

[0008] In one embodiment, the weight loss is 15% to 35% by weight.

[0009] In one embodiment, the flame-retardant material of the present invention has an air permeability of 100 seconds or more as measured using an Oken-type digital sample-type air permeability / smoothness tester in accordance with JIS-P8117.

[0010] In one embodiment, the air permeability is 3000 seconds or more.

[0011] In one embodiment, the binder resin is at least one selected from a thermoplastic resin, a thermosetting resin, and a rubber.

[0012] In one embodiment, the resin composition (A) contains a low-melting point inorganic substance and a high-melting point inorganic substance.

[0013] In one embodiment, the low melting point inorganic material is glass frit.

[0014] In one embodiment, the high-melting point inorganic material is at least one selected from boron nitride, alumina, zinc oxide, titanium oxide, silica, barium titanate, calcium carbonate, glass beads, aluminum hydroxide, silicone powder, glass balloons, silica balloons, and talc.

[0015] In one embodiment, the resin composition (A) having the binder resin is a resin composition (B) having a binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance.

[0016] In one embodiment, the content of the low melting point inorganic substance relative to 100 parts by weight of the binder resin that generates the high melting point inorganic substance by heating is 100 parts by weight to 500 parts by weight in terms of solid content.

[0017] In one embodiment, the total content of the binder resin that generates a high-melting-point inorganic substance upon heating and the low-melting-point inorganic substance in the resin composition (B) is 80% by weight to 100% by weight in terms of solid content.

[0018] In one embodiment, the binder resin that generates a high-melting-point inorganic substance upon heating is a silicone resin.

[0019] In one embodiment, the low melting point inorganic material is glass frit.

[0020] In one embodiment, the flame-retardant material of the present invention is in the form of a sheet having a thickness of 20 μm to 3000 μm. [Effects of the Invention]

[0021] According to the present invention, a new flame-retardant material having excellent flame retardancy can be provided. DETAILED DESCRIPTION OF THE INVENTION

[0022] ≪≪1. Flame-retardant materials≫≫ The flame-retardant material of the present invention is a flame-retardant material formed from a resin composition (A) containing a binder resin. In this specification, the flame-retardant material of the present invention in this embodiment may be referred to as the flame-retardant material (A).

[0023] The resin composition (A) containing a binder resin may be a resin composition (B) containing a binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance. In this case, the flame-retardant material of the present invention is formed from the resin composition (B) containing the binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance. In this specification, the flame-retardant material of the present invention in this embodiment is sometimes referred to as flame-retardant material (B).

[0024] In this specification, the term "flame-retardant material of the present invention" simply refers to both the flame-retardant material (A) and the flame-retardant material (B). The flame-retardant material may take any appropriate form, such as a flame-retardant sheet (the term "sheet" also includes the concept of tape), a flame-retardant coating agent, or a flame-retardant composition, as long as the effects of the present invention are not impaired.

[0025] The flame-retardant material (A) can exhibit excellent flame retardancy by being formed from the resin composition (A).

[0026] The flame-retardant material (B) can exhibit excellent flame retardancy by being formed from the resin composition (B).

[0027] The flame-retardant material of the present invention has a weight loss of 48% by weight or less, as measured by thermogravimetric analysis in an air atmosphere, scanning from room temperature to 1000°C at a heating rate of 50°C / min. The weight loss is preferably 1% by weight to 48% by weight, more preferably 5% by weight to 45% by weight, even more preferably 10% by weight to 40% by weight, and particularly preferably 15% by weight to 35% by weight. When the weight loss is within the above range, the flame-retardant material of the present invention can exhibit excellent flame retardancy.

[0028] The flame-retardant material of the present invention preferably has an air permeability of 100 seconds or more, more preferably 500 seconds or more, even more preferably 1000 seconds or more, particularly preferably 2000 seconds or more, and most preferably 3000 seconds or more, as measured with an Oken-type digital sample-type air permeability / smoothness tester in accordance with JIS P 8117. When the flame-retardant material of the present invention has an air permeability within the above range, it can exhibit better flame retardancy.

[0029] The flame-retardant material (A) is a material formed from the resin composition (A), and any suitable method can be used as the method for forming it as long as the effects of the present invention are not impaired. Examples of such a method include a method in which the resin composition (A) is applied to a suitable substrate (e.g., a polyethylene terephthalate film) so that the dried thickness is a desired thickness, and then the substrate is peeled off to form a sheet-like flame-retardant material (A).

[0030] The flame-retardant material (B) is a material formed from the resin composition (B), and any suitable method can be used as the method for forming it as long as the effects of the present invention are not impaired. Examples of such a method include a method in which the resin composition (B) is applied to a suitable substrate (e.g., a polyethylene terephthalate film) so that the thickness after drying is a desired thickness, and then the substrate is peeled off to form a sheet-like flame-retardant material (A).

[0031] The resin composition (A) and the resin composition (B) may be a solvent-based composition, a water-dispersed composition, or a solventless composition (e.g., a hot-melt type), or may be, for example, a coating composition.

[0032] Examples of the method for applying the resin composition (A) and the resin composition (B) include any appropriate application method such as an applicator, kiss coating, gravure coating, bar coating, spray coating, knife coating, wire coating, dip coating, die coating, curtain coating, dispenser coating, screen printing, and metal mask printing.

[0033] The flame-retardant material of the present invention is formed from resin composition (A) or resin composition (B). In this case, the composition of resin composition (A) or resin composition (B), which is the material for forming the flame-retardant material of the present invention, may not be identical to the composition of the flame-retardant material of the present invention. For example, when resin composition (A) is applied to an appropriate substrate so as to achieve a desired dried thickness and then heated and dried, at least a portion of resin composition (A) may undergo a curing reaction. In such cases, the composition of resin composition (A), which is the material for forming flame-retardant material (A), will not be identical to the composition of flame-retardant material (A). For this reason, it is difficult to define the flame-retardant material of the present invention by its own composition. Therefore, the flame-retardant material of the present invention is defined by defining resin composition (A) or resin composition (B), which is the material for forming the flame-retardant material of the present invention.

[0034] When the flame-retardant material of the present invention is in sheet form, its thickness is preferably 20 μm to 3000 μm, more preferably 40 μm to 2000 μm, even more preferably 60 μm to 1000 μm, particularly preferably 80 μm to 500 μm, and most preferably 100 μm to 300 μm. When the thickness is within the above range, the flame-retardant material of the present invention can more effectively exhibit the effects of the present invention. When the flame-retardant material is in sheet form, if its thickness is too small, the flame-retardant material may not exhibit sufficient flame retardancy. When the flame-retardant material is in sheet form, if its thickness is too large, it may be difficult to handle as a sheet.

[0035] The flame retardant material of the present invention preferably has a total heat release rate of 30 MJ / m per 10 minutes in a cone calorimeter test in accordance with ISO 5660-1:2002. 2 Below, the maximum heat generation rate is 300kW / m 2 When the result of the cone calorimeter test is within the above range, the flame-retardant material of the present invention can exhibit better flame retardancy.

[0036] When the flame-retardant material of the present invention is in the form of a sheet, it may have a protective layer on the surface thereof, as long as the effect of the present invention is not impaired.

[0037] The main component of the protective layer is preferably a polymer. The protective layer is preferably at least one selected from the group consisting of an ultraviolet-curable hard coat layer, a thermosetting hard coat layer, and an organic-inorganic hybrid hard coat layer. Such a protective layer may consist of only one layer or two or more layers.

[0038] The ultraviolet-curable hard coat layer can be formed from a resin composition containing an ultraviolet-curable resin. The thermosetting hard coat layer can be formed from a resin composition containing a thermosetting resin. The organic-inorganic hybrid hard coat layer can be formed from a resin composition containing an organic-inorganic hybrid resin.

[0039] More specifically, curable compounds used in the above resins include monomers, oligomers, polymers, and silazane compounds having at least one selected from the group consisting of silanol groups, precursors of silanol groups (e.g., alkoxysilyl groups and chlorosilyl groups), acryloyl groups, methacryloyl groups, cyclic ether groups, amino groups, and isocyanate groups. Monomers, oligomers, and polymers having silanol groups are preferred because their surfaces are less likely to carbonize during combustion.

[0040] The resin composition capable of forming a hard coat layer may further contain any appropriate additives depending on the purpose. Examples of such additives include photopolymerization initiators, silane coupling agents, release agents, curing agents, curing accelerators, diluents, antioxidants, modifiers, surfactants, dyes, pigments, anti-discoloration agents, UV absorbers, softeners, stabilizers, plasticizers, and antifoaming agents. The type, number, and amount of additives contained in the resin composition capable of forming a hard coat layer may be appropriately set depending on the purpose.

[0041] The protective layer may have any appropriate thickness as long as it does not impair the effects of the present invention, and the thickness is preferably 0.1 μm to 200 μm, more preferably 0.2 μm to 100 μm, and even more preferably 0.5 μm to 50 μm.

[0042] 1-1. Flame retardancy mechanism The mechanism by which the flame-retardant material of the present invention exhibits flame retardancy is based on the principle that when the flame-retardant material is exposed to high temperatures, a phase change occurs within the flame-retardant material, forming a flame-retardant inorganic coating that effectively blocks flames, combustion gases, etc. As a result of investigating the components necessary for the formation of a flame-retardant inorganic coating through a phase change, the following was discovered.

[0043] In one preferred embodiment, when the three components of a binder resin, a low-melting-point inorganic substance, and a high-melting-point inorganic substance are coexisted and exposed to high temperatures, the binder resin thermally decomposes and disappears or forms a charcoal. The low-melting-point inorganic substance then melts and liquefies, becoming a binder component for the high-melting-point inorganic substance or charcoal, forming a coating. Because the liquefied low-melting-point inorganic substance, the high-melting-point inorganic substance, and the charcoal are all flame-retardant substances, the resulting coating is a flame-retardant coating.

[0044] In another preferred embodiment, when two components, a binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance, are coexisted and exposed to high temperatures, the binder resin partially thermally decomposes, forming the high-melting-point inorganic substance as a residue. The low-melting-point inorganic substance then melts and liquefies, becoming a binder component for the high-melting-point inorganic substance and forming a coating. Because the liquefied low-melting-point inorganic substance and the high-melting-point inorganic substance are both flame-retardant substances, the resulting coating is a flame-retardant coating.

[0045] <1-2. Resin composition (A)> The flame-retardant material (A) is formed from a resin composition (A) containing a binder resin. The binder resin may be one kind or two or more kinds.

[0046] The flame-retardant material (A) preferably contains a low-melting point inorganic substance and a high-melting point inorganic substance. In this case, the resin composition (A) contains a binder resin, a low-melting point inorganic substance, and a high-melting point inorganic substance. The low-melting point inorganic substance may be of only one type or may be of two or more types. The high-melting point inorganic substance may be of only one type or may be of two or more types.

[0047] When the resin composition (A) contains a binder resin, a low-melting-point inorganic substance, and a high-melting-point inorganic substance, the total content of the binder resin, low-melting-point inorganic substance, and high-melting-point inorganic substance in the resin composition (A) is preferably 80% to 100% by weight, more preferably 85% to 100% by weight, even more preferably 90% to 100% by weight, particularly preferably 95% to 100% by weight, and most preferably 98% to 100% by weight, calculated on a solids basis. When the total content of the binder resin, low-melting-point inorganic substance, and high-melting-point inorganic substance in the resin composition (A) is within the above ranges, the flame-retardant material (A) can more effectively exhibit the effects of the present invention. If the total content of the binder resin, low-melting-point inorganic substance, and high-melting-point inorganic substance in the resin composition (A) is too low, calculated on a solids basis, the flame-retardant material may not exhibit sufficient flame retardancy.

[0048] When the resin composition (A) contains a binder resin, a low-melting-point inorganic substance, and a high-melting-point inorganic substance, the content of the low-melting-point inorganic substance in the resin composition (A) relative to 100 parts by weight of the binder resin is preferably 100 to 500 parts by weight, more preferably 110 to 400 parts by weight, even more preferably 120 to 350 parts by weight, particularly preferably 130 to 300 parts by weight, and most preferably 140 to 250 parts by weight, calculated as solids. When the content of the low-melting-point inorganic substance relative to 100 parts by weight of the binder resin in the resin composition (A) is within the above-mentioned range, the flame-retardant material (A) can more effectively exhibit the effects of the present invention. When the content of the low-melting-point inorganic substance relative to 100 parts by weight of the binder resin in the resin composition (A) is outside the above-mentioned range, the flame-retardant material may not exhibit sufficient flame retardancy.

[0049] When the resin composition (A) contains a binder resin, a low-melting-point inorganic substance, and a high-melting-point inorganic substance, the content of the high-melting-point inorganic substance in the resin composition (A) relative to 100 parts by weight of the binder resin, calculated as solid content, is preferably 10 to 100 parts by weight, more preferably 13 to 80 parts by weight, even more preferably 16 to 70 parts by weight, particularly preferably 18 to 60 parts by weight, and most preferably 20 to 50 parts by weight. When the content of the high-melting-point inorganic substance relative to 100 parts by weight of the binder resin in the resin composition (A) is within the above-mentioned range, calculated as solid content, the flame-retardant material (A) can more effectively exhibit the effects of the present invention. When the content of the high-melting-point inorganic substance relative to 100 parts by weight of the binder resin in the resin composition (A) is outside the above-mentioned range, the flame-retardant material may not exhibit sufficient flame retardancy.

[0050] In addition to the binder resin, low-melting inorganic substance, and high-melting inorganic substance, the resin composition (A) may contain any other appropriate components as long as the effects of the present invention are not impaired. Such other components may be one type only or two or more types. Examples of such other components include solvents, crosslinkers, pigments, dyes, leveling agents, plasticizers, thickeners, drying agents, antifoaming agents, foaming agents, carbonization accelerators, and rust inhibitors.

[0051] <1-2-1. Binder resin> As the binder resin, any appropriate binder resin can be used as long as it does not impair the effects of the present invention. The binder resin may be one type only or two or more types. Such a binder resin is preferably at least one type selected from thermoplastic resins, thermosetting resins, and rubbers, in order to more effectively exhibit the effects of the present invention.

[0052] As the thermoplastic resin, any appropriate thermoplastic resin can be used as long as it does not impair the effects of the present invention. The thermoplastic resin may be one type or two or more types. Examples of such thermoplastic resins include general-purpose plastics, engineering plastics, and super engineering plastics.

[0053] Examples of general-purpose plastics include polyolefins such as polyethylene and polypropylene; vinyl chloride resins such as polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC); acrylic resins such as polymethyl methacrylate; styrene resins such as polystyrene, ABS resin, AS resin, AAS resin, ACS resin, AES resin, MS resin, SMA resin, and MBS resin; polyesters such as polyethylene terephthalate, polyethylene naphthalate, and polybutylene terephthalate; alkyd resins; and unsaturated polyester resins.

[0054] Examples of engineering plastics include polyamides (nylons) such as nylon 6, nylon 66, nylon 610, nylon 11, and nylon 12; polyethers such as polyacetal (POM) and polyphenylene ether (PPE); and polycarbonates.

[0055] Examples of super engineering plastics include fluorine-based resins such as polyvinylidene fluoride (PVDF); sulfur-containing polymers such as polyphenylene sulfide (PPS) and polyethersulfone (PES); polyimide (PI); polyamide-imide (PAI); polyetherimide (PEI); and polyetheretherketone (PEEK).

[0056] As the thermosetting resin, any appropriate thermosetting resin can be used as long as it does not impair the effects of the present invention. The thermosetting resin may be one type only or two or more types. Examples of such thermosetting resins include silicone resins, urethane resins, vinyl ester resins, phenoxy resins, epoxy resins, amino resins such as urea resins, melamine resins, and benzoguanamine resins, phenolic resins, acrylic urethane resins, and acrylic silicone resins.

[0057] Any appropriate rubber can be used as long as it does not impair the effects of the present invention. Only one type of rubber may be used, or two or more types of rubber may be used. Examples of such rubber include natural rubber (NR) and synthetic rubber.

[0058] Examples of synthetic rubbers include styrene-isoprene block polymer (SIS), isoprene rubber (IR), butadiene rubber (BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), polyisobutylene (PIB), ethylene propylene rubber (e.g., EPM, EPDM, etc.), chlorosulfonated polyethylene (CSM), acrylic rubber (ACM), fluororubber (FKM), epichlorohydrin rubber (CO), urethane rubber (e.g., AU, EU, etc.), and silicone rubber (e.g., FMQ, FMVQ, MQ, PMQ, PVMQ, VMQ, etc.).

[0059] <1-2-2. Low-melting-point inorganic substances> As the low-melting point inorganic substance, any appropriate low-melting point inorganic substance can be used as long as it does not impair the effects of the present invention. The low-melting point inorganic substance may be one type only, or two or more types. Such a low-melting point inorganic substance is preferably an inorganic substance that melts at a temperature of 1100°C or less. As such a low-melting point inorganic substance, glass frit is preferably used, as it can more effectively exhibit the effects of the present invention. The glass frit is preferably at least one type selected from phosphate-based glass frit, borosilicate-based glass frit, and bismuth-based glass frit, as it can more effectively exhibit the effects of the present invention.

[0060] The yield point of the glass frit is preferably 300° C. to 700° C., more preferably 300° C. to 650° C., and even more preferably 300° C. to 600° C. When the yield point of the glass frit is within the above range, the flame-retardant material (A) can more effectively exhibit the effects of the present invention.

[0061] The average particle size of the glass frit is preferably 0.1 μm to 50 μm, more preferably 0.5 μm to 45 μm, even more preferably 1 μm to 40 μm, particularly preferably 2 μm to 35 μm, and most preferably 3 μm to 30 μm. When the average particle size of the glass frit is within the above range, the flame-retardant material (A) can more effectively exhibit the effects of the present invention.

[0062] <1-2-3. High-melting-point inorganic substances> Any appropriate high-melting-point inorganic substance can be used as the high-melting-point inorganic substance as long as it does not impair the effects of the present invention. Only one type of high-melting-point inorganic substance may be used, or two or more types may be used. Such a high-melting-point inorganic substance is preferably an inorganic substance that does not melt at a temperature of 1100°C or lower. In terms of the ability to better exhibit the effects of the present invention, such a high-melting-point inorganic substance is preferably at least one selected from boron nitride, alumina, zinc oxide, titanium oxide, silica, barium titanate, calcium carbonate, glass beads, aluminum hydroxide, silicone powder, glass balloons, silica balloons, and talc.

[0063] The average particle size of the high-melting point inorganic substance is preferably 0.01 μm to 50 μm, more preferably 0.05 μm to 40 μm, even more preferably 0.1 μm to 35 μm, particularly preferably 0.5 μm to 30 μm, and most preferably 1 μm to 25 μm. When the average particle size of the high-melting point inorganic substance is within the above range, the flame-retardant material (A) can more effectively exhibit the effects of the present invention.

[0064] ≪1-3. Resin composition (B)≫ The flame-retardant material (B) is formed from a resin composition (B) having a binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance. That is, the resin composition (B) has a binder resin that generates a high-melting-point inorganic substance upon heating and a low-melting-point inorganic substance. The binder resin that generates a high-melting-point inorganic substance upon heating may be of only one type, or may be of two or more types. The low-melting-point inorganic substance may be of only one type, or may be of two or more types. The high-melting-point inorganic substance may be of only one type, or may be of two or more types.

[0065] The total content of the binder resin that generates a high-melting-point inorganic substance upon heating and the low-melting-point inorganic substance in the resin composition (B) is preferably 80% to 100% by weight, more preferably 85% to 100% by weight, even more preferably 90% to 100% by weight, particularly preferably 95% to 100% by weight, and most preferably 98% to 100% by weight, calculated as solids. If the total content of the binder resin that generates a high-melting-point inorganic substance upon heating and the low-melting-point inorganic substance in the resin composition (B) is within the above range, calculated as solids, the flame-retardant material (B) can more effectively exhibit the effects of the present invention. If the total content of the binder resin that generates a high-melting-point inorganic substance upon heating and the low-melting-point inorganic substance in the resin composition (B) is too low, calculated as solids, the flame-retardant material may not exhibit sufficient flame retardancy.

[0066] The content of the low-melting-point inorganic substance in the resin composition (B) relative to 100 parts by weight of the binder resin that generates a high-melting-point inorganic substance upon heating is preferably 100 to 500 parts by weight, more preferably 110 to 450 parts by weight, even more preferably 120 to 400 parts by weight, particularly preferably 130 to 350 parts by weight, and most preferably 140 to 300 parts by weight, calculated as solids. If the content of the low-melting-point inorganic substance relative to 100 parts by weight of the binder resin that generates a high-melting-point inorganic substance upon heating in the resin composition (B) is within the above-mentioned range, the flame-retardant material (B) can more effectively exhibit the effects of the present invention. If the content of the low-melting-point inorganic substance relative to 100 parts by weight of the binder resin that generates a high-melting-point inorganic substance upon heating in the resin composition (B) is outside the above-mentioned range, the flame-retardant material may not exhibit sufficient flame retardancy.

[0067] In addition to the binder resin that generates a high-melting-point inorganic substance upon heating and the low-melting-point inorganic substance, the resin composition (B) may contain any other appropriate components as long as the effects of the present invention are not impaired. Such other components may be one type only or two or more types. Examples of such other components include solvents, crosslinkers, high-melting-point inorganic substances, pigments, dyes, leveling agents, plasticizers, thickeners, drying agents, antifoaming agents, foaming agents, carbonization accelerators, and rust inhibitors.

[0068] <1-3-1. Binder resin that generates high-melting-point inorganic substances upon heating> As the binder resin that generates a high-melting-point inorganic substance upon heating, any suitable binder resin that generates a high-melting-point inorganic substance upon heating can be used as long as the effects of the present invention are not impaired. The binder resin that generates a high-melting-point inorganic substance upon heating may be one type or two or more types. The binder resin that generates a high-melting-point inorganic substance upon heating is preferably a silicone resin, as this can better exhibit the effects of the present invention.

[0069] Any suitable silicone resin can be used as long as it does not impair the effects of the present invention. Examples of such silicone resins include addition reaction type silicones, condensation reaction type silicones, silicone resins, and silicone rubbers.

[0070] When a silicone resin is used as a binder resin that generates a high-melting-point inorganic substance upon heating, when the silicone resin is exposed to high temperatures, part of the silicone undergoes thermal decomposition, forming silica as a residue. When the low-melting-point inorganic substance subsequently melts and liquefies, the low-melting-point inorganic substance becomes a binder component for silica, forming a coating. Because the liquefied low-melting-point inorganic substance and silica are both flame-retardant substances, the resulting coating is a flame-retardant coating.

[0071] <1-3-2. Low-melting-point inorganic substances> For the low melting point inorganic substance contained in the resin composition (B), the explanation in the section <1-2-2. Low melting point inorganic substance> can be cited.

[0072] ≪≪2.Applications≫≫ The flame-retardant material of the present invention can exhibit excellent flame retardancy and can therefore be used as interior materials for transportation vehicles such as railway cars, airplanes, automobiles, ships, elevators, and escalators (interior materials for transportation vehicles), exterior materials for transportation vehicles, building materials, display materials, home appliance materials, and electronic circuit materials. It can also be suitably used as a lighting cover, particularly as a lighting cover for interior materials for transportation vehicles. [Example]

[0073] The present invention will be described in more detail below with reference to examples and comparative examples. However, the present invention is not limited to these examples. In the following description, "parts" and "%" are by weight unless otherwise specified.

[0074] <Combustion test> A sheet of flame-retardant material or materials cut to a width of 15 mm and a length of 50 mm was brought into contact with a flame from a gas burner for 10 seconds. The shape and strength of the flame-retardant material or materials after contact with the flame were evaluated according to the following criteria. (shape) 〇: The sheet shape is maintained and there is no deformation. △: Sheet shape is maintained, but deformation occurs. ×: The sheet shape cannot be maintained. (strength) 〇: The sheet shape is maintained when dropped from a height of 10cm. ×: The sheet shape cannot be maintained when dropped from a height of 10 cm.

[0075] <Weight loss measurement> The sample was placed in a TGA (thermobalance) measuring device and measured by scanning from room temperature to 1000°C at a temperature increase rate of 50°C / min in an air atmosphere, and the amount of weight loss at 1000°C was determined.

[0076] <Air permeability measurement> Measurements were taken using an Oken-style digital sample-type air permeability and smoothness tester (model: EG.6) manufactured by Asahi Seiko Co., Ltd., using a test method based on JIS-P8117.

[0077] [Synthesis Example 1] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (A-1).

[0078] [Synthesis Example 2] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of aluminum hydroxide (trade name: BF013, manufactured by Nippon Light Metal Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (B-1).

[0079] [Synthesis Example 3] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of talc (trade name: Imported Talc, manufactured by Maruo Calcium Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (C-1).

[0080] [Synthesis Example 4] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Zeon Corporation), 20 parts by weight of calcium carbonate (trade name: heavy calcium carbonate, manufactured by Maruo Calcium Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (D-1).

[0081] [Synthesis Example 5] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of glass beads (trade name: CF0018WB15-01, manufactured by Nippon Frit Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (E-1).

[0082] [Synthesis Example 6] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Zeon Corporation), 20 parts by weight of titanium oxide (trade name: TITONE R-42, manufactured by Sakai Chemical Industry Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (F-1).

[0083] [Synthesis Example 7] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Zeon Corporation), 20 parts by weight of aluminum oxide (trade name: TITONE R-42, manufactured by Sakai Chemical Industry Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (G-1).

[0084] [Synthesis Example 8] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Zeon Corporation), 20 parts by weight of silicone powder (trade name: KMP-600, manufactured by Shin-Etsu Chemical Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (H-1).

[0085] [Synthesis Example 9] A container equipped with a stirrer was charged with 80 parts by weight of natural rubber (trade name: Natural Rubber (INT No. 1 RSS), manufactured by Toyota Tsusho Corporation), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred and mixed to obtain a natural rubber composition (A-1).

[0086] [Synthesis Example 10] To a container equipped with a stirrer, 266 parts by weight of acrylic rubber (trade name: SK Dyne 1429DTB, solid content: 30%, manufactured by Soken Chemical & Engineering Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 114 parts by weight of toluene were added, and the mixture was stirred and mixed to obtain an acrylic rubber composition (A-1).

[0087] [Synthesis Example 11] A container equipped with a stirrer was charged with 80 parts by weight of vinyl chloride resin (trade name: Shin-Etsu PVC TK-1300, manufactured by Shin-Etsu Chemical Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a vinyl chloride resin composition (A-1).

[0088] [Synthesis Example 12] A container equipped with a stirrer was charged with 160 parts by weight of nylon resin (trade name: AQ Nylon P-95, solid content: 50%, manufactured by Toray Industries, Inc.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 220 parts by weight of distilled water, and the mixture was stirred and mixed to obtain a nylon resin composition (A-1).

[0089] [Synthesis Example 13] A container equipped with a stirrer was charged with 195 parts by weight of a fluororesin (trade name: Obligato SS0057, solid content: 41%, manufactured by AGC Coatec), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of a phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 185 parts by weight of toluene, and the mixture was stirred to obtain a fluororesin composition (A-1).

[0090] [Synthesis Example 14] To a vessel equipped with a stirrer, 200 parts by weight of an epoxy resin (trade name: jER1256B40, solid content: 40%, manufactured by Mitsubishi Chemical Corporation), 40 parts by weight of a curing agent (trade name: IBMI12, manufactured by Mitsubishi Chemical Corporation), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of a phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 180 parts by weight of MEK were added, and the mixture was stirred and mixed to obtain an epoxy resin composition (A-1).

[0091] [Synthesis Example 15] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (A-2).

[0092] [Synthesis Example 16] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of aluminum hydroxide (trade name: BF013, manufactured by Nippon Light Metal Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (B-2).

[0093] [Synthesis Example 17] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of talc (trade name: Imported Talc, manufactured by Maruo Calcium Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (C-2).

[0094] [Synthesis Example 18] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of calcium carbonate (trade name: heavy calcium carbonate, manufactured by Maruo Calcium Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (D-2).

[0095] [Synthesis Example 19] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of glass beads (trade name: CF0018WB15-01, manufactured by Nippon Frit Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (E-2).

[0096] [Synthesis Example 20] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Zeon Corporation), 20 parts by weight of titanium dioxide (trade name: TITONE R-42, manufactured by Sakai Chemical Industry Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (F-2).

[0097] [Synthesis Example 21] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Zeon Corporation), 20 parts by weight of aluminum oxide (trade name: TITONE R-42, manufactured by Sakai Chemical Industry Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (G-2).

[0098] [Synthesis Example 22] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac3520, manufactured by Zeon Corporation), 20 parts by weight of silicone powder (trade name: KMP-600, manufactured by Shin-Etsu Chemical Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred to obtain a synthetic rubber composition (H-2).

[0099] [Synthesis Example 23] A container equipped with a stirrer was charged with 80 parts by weight of natural rubber (trade name: Natural Rubber (INT No. 1 RSS), manufactured by Toyota Tsusho Corporation), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 700 parts by weight of toluene, and the mixture was stirred and mixed to obtain a natural rubber composition (A-2).

[0100] [Synthesis Example 24] To a container equipped with a stirrer, 266 parts by weight of acrylic rubber (trade name: SK Dyne 1429DTB, solid content concentration: 30%, manufactured by Soken Chemical & Engineering Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 114 parts by weight of toluene were added, and the mixture was stirred and mixed to obtain an acrylic rubber composition (A-2).

[0101] [Synthesis Example 25] A container equipped with a stirrer was charged with 80 parts by weight of vinyl chloride resin (trade name: Shin-Etsu PVC TK-1300, manufactured by Shin-Etsu Chemical Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a vinyl chloride resin composition (A-2).

[0102] [Synthesis Example 26] A container equipped with a stirrer was charged with 160 parts by weight of nylon resin (trade name: AQ Nylon P-95, solid content: 50%, manufactured by Toray Industries, Inc.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 220 parts by weight of distilled water, and the mixture was stirred and mixed to obtain a nylon resin composition (A-2).

[0103] [Synthesis Example 27] A vessel equipped with a stirrer was charged with 195 parts by weight of a fluororesin (trade name: Obligato SS0057, solid content: 41%, manufactured by AGC Coatec), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of a borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 185 parts by weight of toluene, and the mixture was stirred to obtain a fluororesin composition (A-2).

[0104] [Synthesis Example 28] To a vessel equipped with a stirrer, 200 parts by weight of an epoxy resin (trade name: jER1256B40, solid content: 40%, manufactured by Mitsubishi Chemical Corporation), 40 parts by weight of a curing agent (trade name: IBMI12, manufactured by Mitsubishi Chemical Corporation), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 180 parts by weight of MEK were added, and the mixture was stirred and mixed to obtain an epoxy resin composition (A-2).

[0105] [Synthesis Example 29] A container equipped with a stirrer was charged with 100 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 300 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (I).

[0106] [Synthesis Example 30] A container equipped with a stirrer was charged with 80 parts by weight of synthetic rubber (trade name: Quintac 3520, manufactured by Nippon Zeon Co., Ltd.), 20 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 100 parts by weight of toluene, and the mixture was stirred and mixed to obtain a synthetic rubber composition (J).

[0107] Example 1 The synthetic rubber composition (A-1) obtained in Synthesis Example 1 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (1). The results are shown in Tables 1 and 2.

[0108] Example 2 The synthetic rubber composition (B-1) obtained in Synthesis Example 2 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (2). The results are shown in Tables 1 and 2.

[0109] Example 3 The synthetic rubber composition (C-1) obtained in Synthesis Example 3 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (3). The results are shown in Tables 1 and 2.

[0110] Example 4 The synthetic rubber composition (D-1) obtained in Synthesis Example 4 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (4). The results are shown in Tables 1 and 2.

[0111] Example 5 The synthetic rubber composition (E-1) obtained in Synthesis Example 5 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (5). The results are shown in Tables 1 and 2.

[0112] Example 6 The synthetic rubber composition (F-1) obtained in Synthesis Example 6 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (6). The results are shown in Tables 1 and 2.

[0113] Example 7 The synthetic rubber composition (G-1) obtained in Synthesis Example 7 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (7). The results are shown in Tables 1 and 2.

[0114] Example 8 The synthetic rubber composition (H-1) obtained in Synthesis Example 8 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (8). The results are shown in Tables 1 and 2.

[0115] Example 9 The natural rubber composition (A-1) obtained in Synthesis Example 9 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (9). The results are shown in Tables 1 and 2.

[0116] Example 10 The acrylic rubber composition (A-1) obtained in Synthesis Example 10 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (10). The results are shown in Tables 1 and 2.

[0117] Example 11 The vinyl chloride resin composition (A-1) obtained in Synthesis Example 11 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (11). The results are shown in Tables 1 and 2.

[0118] Example 12 The nylon resin composition (A-1) obtained in Synthesis Example 12 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (12). The results are shown in Tables 1 and 2.

[0119] Example 13 The fluororesin composition (A-1) obtained in Synthesis Example 13 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (13). The results are shown in Tables 1 and 2.

[0120] Example 14 The epoxy resin composition (A-1) obtained in Synthesis Example 14 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (14). The results are shown in Tables 1 and 2.

[0121] Example 15 The synthetic rubber composition (A-2) obtained in Synthesis Example 15 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (15). The results are shown in Tables 1 and 2.

[0122] Example 16 The synthetic rubber composition (B-2) obtained in Synthesis Example 16 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (16). The results are shown in Tables 1 and 2.

[0123] Example 17 The synthetic rubber composition (C-2) obtained in Synthesis Example 17 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (17). The results are shown in Tables 1 and 2.

[0124] Example 18 The synthetic rubber composition (D-2) obtained in Synthesis Example 18 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (18). The results are shown in Tables 1 and 2.

[0125] Example 19 The synthetic rubber composition (E-2) obtained in Synthesis Example 19 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (19). The results are shown in Tables 1 and 2.

[0126] Example 20 The synthetic rubber composition (F-2) obtained in Synthesis Example 20 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (20). The results are shown in Tables 1 and 2.

[0127] Example 21 The synthetic rubber composition (G-2) obtained in Synthesis Example 21 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (21). The results are shown in Tables 1 and 2.

[0128] Example 22 The synthetic rubber composition (H-2) obtained in Synthesis Example 22 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (22). The results are shown in Tables 1 and 2.

[0129] Example 23 The natural rubber composition (A-2) obtained in Synthesis Example 23 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (23). The results are shown in Tables 1 and 2.

[0130] Example 24 The acrylic rubber composition (A-2) obtained in Synthesis Example 24 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd. so that the thickness after drying would be 100 μm, and then the coating was dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes. The polyethylene terephthalate film was then peeled off to obtain a flame-retardant material (24). The results are shown in Tables 1 and 2.

[0131] Example 25 The vinyl chloride resin composition (A-2) obtained in Synthesis Example 25 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (25). The results are shown in Tables 1 and 2.

[0132] Example 26 The nylon resin composition (A-2) obtained in Synthesis Example 26 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (26). The results are shown in Tables 1 and 2.

[0133] Example 27 The fluororesin composition (A-2) obtained in Synthesis Example 27 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd. so that the thickness after drying would be 100 μm, and then the coating was dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes. The polyethylene terephthalate film was then peeled off to obtain a flame-retardant material (27). The results are shown in Tables 1 and 2.

[0134] Example 28 The epoxy resin composition (A-2) obtained in Synthesis Example 28 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (28). The results are shown in Tables 1 and 2.

[0135] Comparative Example 1 The synthetic rubber composition (I) obtained in Synthesis Example 29 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain material (C1). The results are shown in Tables 1 and 2.

[0136] Comparative Example 2 The synthetic rubber composition (J) obtained in Synthesis Example 30 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain material (C2). The results are shown in Tables 1 and 2.

[0137] [Table 1]

[0138] [Table 2]

[0139] [Synthesis Example 31] To a container equipped with a stirrer, 50 parts by weight of silicone resin (trade name: KE-1950-50A, manufactured by Shin-Etsu Chemical Co., Ltd.), 50 parts by weight of silicone resin (trade name: KE-1950-50B, manufactured by Shin-Etsu Chemical Co., Ltd.), 200 parts by weight of phosphate-based glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and 128 parts by weight of toluene were added, and the mixture was stirred and mixed to obtain a silicone resin composition (S-1).

[0140] Synthesis Example 32 To a container equipped with a stirrer, 50 parts by weight of silicone resin (trade name: KE-1950-50A, manufactured by Shin-Etsu Chemical Co., Ltd.), 50 parts by weight of silicone resin (trade name: KE-1950-50B, manufactured by Shin-Etsu Chemical Co., Ltd.), 200 parts by weight of borosilicate glass frit (trade name: CY5600, manufactured by Nippon Frit Co., Ltd.), and 128 parts by weight of toluene were added, and the mixture was stirred to obtain a silicone resin composition (S-2).

[0141] Example 29 The silicone resin composition (S-1) obtained in Synthesis Example 31 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (29). The results are shown in Tables 3 and 4.

[0142] Example 30 The silicone resin composition (S-2) obtained in Synthesis Example 32 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Lumirror S10, manufactured by Toray Industries, Inc.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating in a hot air circulation oven at 80°C for 2 minutes and then at 110°C for 2 minutes, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (30). The results are shown in Tables 3 and 4.

[0143] [Table 3]

[0144] [Table 4]

[0145] [Synthesis Example 33] To a container equipped with a stirrer, 100 parts by weight of an epoxy paint (trade name: Mild Rust Guard, manufactured by SK Chemical Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 100 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added and mixed by stirring to obtain a coating composition (A-1).

[0146] [Synthesis Example 34] To a container equipped with a stirrer, 100 parts by weight of an epoxy paint (trade name: Mild Rust Guard, manufactured by SK Chemical Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 200 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added, and the mixture was stirred and mixed to obtain a coating composition (A-2).

[0147] [Synthesis Example 35] To a container equipped with a stirrer, 100 parts by weight of an epoxy paint (trade name: Mild Rust Guard, manufactured by SK Chemical Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 300 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added, and the mixture was stirred to obtain a coating composition (A-3).

[0148] [Synthesis Example 36] A container equipped with a stirrer was charged with 100 parts by weight of a urethane paint (trade name: Retan ECO Bake, manufactured by Kansai Paint Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 100 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and the mixture was stirred to obtain a coating composition (B-1).

[0149] [Synthesis Example 37] A container equipped with a stirrer was charged with 100 parts by weight of a urethane paint (trade name: Retan ECO Bake, manufactured by SK Chemical Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 200 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and the mixture was stirred to obtain a coating composition (B-2).

[0150] [Synthesis Example 38] A container equipped with a stirrer was charged with 100 parts by weight of a urethane paint (trade name: Retan ECO Bake, manufactured by SK Chemical Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 300 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and the mixture was stirred to obtain a coating composition (B-3).

[0151] [Synthesis Example 39] A container equipped with a stirrer was charged with 100 parts by weight of a fluorine-based paint (trade name: Super Ode Fresh F, manufactured by Nippon Paint Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 100 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and the mixture was stirred to obtain a coating composition (C-1).

[0152] [Synthesis Example 40] A container equipped with a stirrer was charged with 100 parts by weight of a fluorine-based paint (trade name: Super Ode Fresh F, manufactured by Nippon Paint Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 200 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.), and the mixture was stirred to obtain a coating composition (C-2).

[0153] [Synthesis Example 41] To a container equipped with a stirrer, 100 parts by weight of an acrylic paint (trade name: Nippe Road Line 1000, manufactured by Nippon Paint Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 100 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added, and the mixture was stirred and mixed to obtain a coating composition (D-1).

[0154] [Synthesis Example 42] To a container equipped with a stirrer, 100 parts by weight of an acrylic paint (trade name: Nippe Road Line, manufactured by Nippon Paint Co., Ltd.), 10 parts by weight of silica (trade name: AEROSIL RX 200, manufactured by Nippon Aerosil Co., Ltd.), and 200 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added, and the mixture was stirred and mixed to obtain a coating composition (D-2).

[0155] [Synthesis Example 43] To a container equipped with a stirrer, 100 parts by weight of a silicone paint (trade name: Super Ode Fresh Si, manufactured by Nippon Paint Co., Ltd.) and 100 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added and mixed by stirring to obtain a coating composition (E-1).

[0156] [Synthesis Example 44] To a container equipped with a stirrer, 100 parts by weight of a silicone paint (trade name: Super Ode Fresh Si, manufactured by Nippon Paint Co., Ltd.) and 200 parts by weight of glass frit (trade name: VY0053M, manufactured by Nippon Frit Co., Ltd.) were added and mixed by stirring to obtain a coating composition (E-2).

[0157] Example 31 The coating composition (A-1) obtained in Synthesis Example 33 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (31). The results are shown in Tables 5 and 6.

[0158] Example 32 The coating composition (A-2) obtained in Synthesis Example 34 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm, and then the coating was dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (32). The results are shown in Tables 5 and 6.

[0159] Example 33 The coating composition (A-3) obtained in Synthesis Example 35 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm, and then the coating was dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (33). The results are shown in Tables 5 and 6.

[0160] Example 34 The coating composition (B-1) obtained in Synthesis Example 36 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (34). The results are shown in Tables 5 and 6.

[0161] Example 35 The coating composition (B-2) obtained in Synthesis Example 37 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (35). The results are shown in Tables 5 and 6.

[0162] Example 36 The coating composition (B-3) obtained in Synthesis Example 38 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (36). The results are shown in Tables 5 and 6.

[0163] Example 37 The coating composition (C-1) obtained in Synthesis Example 39 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRF, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (37). The results are shown in Tables 5 and 6.

[0164] Example 38 The coating composition (C-2) obtained in Synthesis Example 40 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRF, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (38). The results are shown in Tables 5 and 6.

[0165] Example 39 The coating composition (D-1) obtained in Synthesis Example 41 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (39). The results are shown in Tables 5 and 6.

[0166] Example 40 The coating composition (D-2) obtained in Synthesis Example 42 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (40). The results are shown in Tables 5 and 6.

[0167] Example 41 The coating composition (E-1) obtained in Synthesis Example 43 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100° C. for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (41). The results are shown in Tables 5 and 6.

[0168] Example 42 The coating composition (E-2) obtained in Synthesis Example 44 was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain a flame-retardant material (42). The results are shown in Tables 5 and 6.

[0169] Comparative Example 3 An epoxy paint (product name: Mild Rust Guard, manufactured by SK Chemical Co., Ltd.) was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Co., Ltd.) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100 ° C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain material (C3). The results are shown in Tables 5 and 6.

[0170] Comparative Example 4 A urethane paint (product name: Retan ECO Bake, manufactured by Kansai Paint Co., Ltd.) was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100 ° C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain material (C4). The results are shown in Tables 5 and 6.

[0171] Comparative Example 5 A fluorine-based paint (product name: Super Ode Fresh F, manufactured by Nippon Paint Co., Ltd.) was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using an applicator manufactured by Tester Sangyo Co., Ltd., so that the thickness after drying would be 100 μm. The coating was then dried by heating at 100 ° C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain material (C5). The results are shown in Tables 5 and 6.

[0172] Comparative Example 6 An acrylic paint (trade name: Nippe Roadline 1000, manufactured by Nippon Paint Co., Ltd.) was applied to a polyethylene terephthalate film (thickness: 50 μm, trade name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using a Tester Sangyo applicator so that the thickness after drying would be 100 μm. The coating was then dried at 100°C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain material (C6). The results are shown in Tables 5 and 6.

[0173] Comparative Example 7 A silicone paint (product name: Super Ode Fresh Si, manufactured by Nippon Paint Co., Ltd.) was applied to a polyethylene terephthalate film (thickness: 50 μm, product name: Diafoil MRS, manufactured by Mitsubishi Chemical Corporation) using a Tester Sangyo applicator so that the thickness after drying would be 100 μm.The coating was then dried by heating at 100 ° C for 30 minutes in a hot air circulation oven, and the polyethylene terephthalate film was peeled off to obtain material (C7).The results are shown in Tables 5 and 6.

[0174] [Table 5]

[0175] [Table 6] [Industrial Applicability]

[0176] The flame-retardant material of the present invention can be suitably used, for example, as interior materials for transportation vehicles such as railway cars, aircraft, automobiles, ships, elevators, and escalators (interior materials for transportation vehicles), exterior materials for transportation vehicles, building materials, display materials, home appliance materials, electronic circuit materials, and lighting covers.

Claims

1. A flame-retardant material formed from a resin composition (A) containing a binder resin (excluding ethylene propylene rubber), The resin composition (A) further contains a low-melting point inorganic substance and a high-melting point inorganic substance, the low-melting-point inorganic material is glass frit, the total content of the binder resin, the low-melting-point inorganic substance, and the high-melting-point inorganic substance is 80% by weight to 100% by weight; the content ratio of the low-melting-point inorganic material relative to 100 parts by weight of the binder resin is 100 parts by weight to 500 parts by weight; the content ratio of the high-melting-point inorganic substance relative to 100 parts by weight of the binder resin is 20 parts by weight to 80 parts by weight; the low-melting-point inorganic substance is an inorganic substance that melts at a temperature of 1100°C or less, the high-melting-point inorganic substance is an inorganic substance that does not melt at a temperature of 1100°C or less, The flame-retardant material has a weight loss of 48% by weight or less as measured by thermogravimetric analysis in an air atmosphere at a temperature increase rate of 50°C / min from room temperature to 1000°C. Flame retardant material.

2. 2. The flame-retardant material according to claim 1, wherein the weight loss is 15% to 35% by weight.

3. 3. The flame-retardant material according to claim 1, wherein the air permeability measured by an Oken type digital sample type air permeability / smoothness tester in accordance with JIS-P8117 is 100 seconds or more.

4. The flame-retardant material according to claim 3, wherein the air permeability is 3000 seconds or more.

5. 5. The flame-retardant material according to claim 1, wherein the binder resin is at least one selected from the group consisting of a thermoplastic resin, a thermosetting resin, and a rubber.

6. 6. The flame-retardant material according to claim 1, wherein the high-melting point inorganic substance is at least one selected from the group consisting of boron nitride, alumina, zinc oxide, titanium oxide, silica, barium titanate, calcium carbonate, glass beads, aluminum hydroxide, silicone powder, glass balloons, silica balloons, and talc.

7. The flame-retardant material according to any one of claims 1 to 6, which is in the form of a sheet having a thickness of 20 µm to 3000 µm.

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