JP4691324B2 - Fireproof resin sash - Google Patents

Description

  The present invention relates to a synthetic resin sash used for an opening of a structure such as a house, and more particularly to a resin sash having fire resistance that can be used for an opening of a fire prevention area.

  Conventionally, instead of an aluminum sash whose body is made of aluminum, a resin sash having excellent heat insulation and soundproofing properties has been widely used mainly in cold regions. Since this resin sash is excellent in heat insulation properties, it is difficult to condense and can improve the comfortability.

  However, since the fireproof performance is low, there is a problem that it cannot be used for fire doors or windows in fireproof areas or semi-fireproof areas. Then, the sash material of the following patent document 1 was invented.

  This sash material has at least two cavities having a substantially rectangular cross-sectional shape, the cavities are arranged in the inner and outer directions, and at least half of the adjacent cavities overlap with each other in a synthetic resin body. And a mold wall member loaded in each of the cavities, and a refractory material loaded in each of the cavities, each of the mold steel members extending substantially along the cavity in the inner and outer directions of the cavity. And a flange wall portion extending both inward and outward from both side edges of the central wall portion, and the refractory material is configured to exist on both the inner and outer sides of the central wall portion of the shaped steel member.

Japanese Patent Publication No. 6-89622 (FIG. 2)

  However, in the sash material described in Patent Document 1, in order to prevent a decrease in fire resistance due to the resin portion being burnt out, at least half of the cavity in which the mold steel member and the fire resistant material are loaded is mutually connected. The sash material had a special structure for fire protection. In addition, since all the cavities are filled with mold steel members and refractory materials, the weight of the sash increases, making it difficult to handle during manufacture and construction, and in the case of a movable sash, There was a problem that there was a feeling of weight. Furthermore, since it is necessary to attach a refractory material to both the mold steel member and the inner and outer surfaces of the mold steel member in all the cavities, there is a problem that the work becomes complicated and takes time when manufacturing the sash. .

  The present invention has been made in view of such problems, and the object of the present invention is to easily provide fire performance without changing the structure of a general resin sash, such as a fire prevention area, etc. It is in providing a fireproof resin sash that can be used in Another object of the present invention is to provide a fireproof resin sash that is lightweight, easy to handle, can simplify the manufacturing process, and can achieve cost reduction. Another object of the present invention is to provide a fireproof resin sash that can prevent the penetration of the cavity when a fire occurs and can quickly exhibit the fireproof performance.

  As a result of intensive studies and experiments to solve the above-mentioned problems, the present inventors express excellent fireproof performance by inserting a thermally expandable refractory material into a hollow portion of a general resin sash that is not fireproof. As a result, the present invention has been completed. Moreover, it discovered that the further outstanding fire prevention performance was expressed by inserting a thermally expansible refractory material and a metal member in a cavity part.

That is, the fireproof resin sash according to the present invention includes an opening frame formed by a synthetic resin frame member having a plurality of cavities along the longitudinal direction, and a plate material having fire resistance that closes the opening of the opening frame. A fireproof resin sash having an outer peripheral frame that supports the outer periphery of the plate member, and the cross-sectional shape of the fireproof resin sash is substantially the same in the longitudinal direction in a selected cavity among the cavities of the opening frame. in a U-shape or a metallic member which has a square pipe shape, refractory sheet sticking member which is integrally bonded to plate-shaped thermally expandable fireproof material having a sticky, having a space spatial sinuses In the selected cavity among the cavities of the outer peripheral frame body, the plate-like thermal expansion refractory material along the longitudinal direction, or the plate-like thermal expansion having adhesiveness to the metal member A fireproof sheet adhering member in which a fireproof material is laminated and integrated, Is inserted so as to have a space sinus, the thermally expandable fireproof material, viewed from a direction perpendicular the direction along the surface of the front Symbol plate, flat wide surface of the heat expandable fireproof material is the plate It is placed so as to coincide with the direction along the surface, and forming a gap without insulating refractory layer by the volume expansion when the fireproof resin sash has been heated. A plurality of cavities are formed along the longitudinal direction of the cross-sectional shape of the synthetic resin member, and a thermally expandable refractory material is inserted into a selected cavity among these cavities. A plurality of thermally expandable refractory materials may be inserted into the same cavity. As the heat-expandable refractory material, a molded body that can be easily inserted into the cavity is preferable.

  The fireproof surface is a surface formed by volume expansion when the thermally expandable refractory material is heated, and a fireproof heat insulating layer is formed without a gap and is continuously formed. For example, when the fireproof resin sash is viewed from the front direction, it is formed of a thermally expandable refractory material that is arranged without gaps so as to almost completely fill the front surface of the synthetic resin member, and is formed as a substantially continuous surface. Is preferred. That is, the refractory surface made of a thermally expandable refractory material is formed as a substantially continuous surface except for the thickness of the resin that divides the plurality of cavities. Even if the plurality of thermally expandable refractory materials constituting the refractory surface are arranged shifted in the depth direction, there is no functional problem.

  As a preferred specific embodiment of the fireproof resin sash according to the present invention, the thermally expandable refractory material is disposed without a gap when the fireproof resin sash is viewed from a direction perpendicular to the direction along the surface of the plate. It is characterized by being. That is, the refractory surface is formed substantially continuously with no gap.

  The fireproof resin sash of the present invention configured as described above, when a heat-expandable refractory material is selectively inserted into a cavity of a synthetic resin member and a refractory surface is formed, is heated by a fire or the like The heat-expandable refractory material is thermally expanded, and the portion made of the synthetic resin is burned and burned down to form a fire-resistant and heat-insulating layer without any gaps, preventing the penetration of flame and exhibiting fire-proof performance. In addition, the heat-expandable refractory material is heated over a wide area and rapidly expands to fill a portion burned and burned out of the synthetic resin member, thereby preventing the flame from penetrating and exhibiting fireproof performance. For this reason, a fireproof resin sash can be easily manufactured, and condensation like a metal sash can be prevented.

  The fire-resistant resin sash is preferably inserted so that the thermally expandable refractory material is formed in a strip shape or a tape shape, and a wide surface thereof is disposed in a direction along the surface of the plate material. The wide surface means a surface corresponding to the long side in the cross section of the strip-like or tape-like thermally expandable refractory material. With this configuration, the heat-expandable refractory material is quickly heated on its wide surface, and a refractory heat insulation layer is instantly formed. Therefore, a small amount of the refractory surface that is continuous over substantially the entire opening of the refractory resin sash It can be formed with a heat-expandable refractory material, and the material cost can be reduced and the fireproof performance can be improved.

  The thermally expandable refractory material is preferably inserted with a space in the cavity. If comprised in this way, weight reduction can be achieved, maintaining the fireproof performance of a fireproof resin sash. As a result, the workability of the fireproof resin sash can be improved.

  It is preferable that the thermally expandable refractory material is adhesively supported on the inner surface of the cavity. The heat-expandable refractory material itself may be tacky, or an adhesive layer may be formed on one side of the heat-expandable refractory material. The pressure-sensitive adhesive layer can be formed by applying a pressure-sensitive adhesive. According to this configuration, when the heat-expandable refractory material is inserted into the cavity of the synthetic resin member, the construction can be facilitated because it can adhere to the inner wall surface of the cavity.

  Moreover, as another aspect of the fireproof resin sash according to the present invention, a metal member is further inserted in the cavity along the longitudinal direction. The metal member is inserted with a large space in the cavity, and supports the thermally expandable refractory material. Various shape steel members are used as the metal member, and the thermally expandable refractory material and the metal member are inserted into one part or all of the cavity in one place or separately. The metallic member has an auxiliary effect of improving the fireproof performance, and is used for reducing the cost by suppressing the thickness of the heat-expandable refractory material, or for a place that becomes a weak point in fire prevention.

  If a metal member is inserted into the cavity of the synthetic resin member, the fireproof resin sash is heated by a fire or the like, and even if the synthetic resin member is burned out, the metal member can reliably prevent the penetration of the flame. it can. For this reason, even if the thickness of the heat-expandable refractory material is reduced, the desired fireproof performance can be ensured and the cost can be reduced. By using this metal member, it is possible to reduce the heat-expandable refractory material inserted into the cavity, and it is possible to achieve weight reduction and cost reduction.

Moreover, as a preferable specific aspect of the fireproof resin sash according to the present invention, the thermally expandable refractory material has a volume expansion coefficient of 3 to 50 times after being heated for 30 minutes under a heating condition of 50 kW / m ^2. And a stress at break after volume expansion measured with a compression tester using a 0.25 cm ² indenter at a compression speed of 0.1 m / s is formed of a material having a stress of 0.05 kgf / cm ² or more. It is characterized by that.

  According to this configuration, the heat-expandable refractory material expands in volume so as to fill the portion of the resin sash made of synthetic resin that burns and burns out in the event of a fire, and has a predetermined breaking stress after the volume expansion. The heat-expandable refractory material is not blown away by hot air such as, and the heat-insulating layer expanded by heating is self-supporting and can prevent the penetration of the flame.

  Furthermore, as another preferable specific embodiment of the fire-resistant resin sash according to the present invention, the thermally expandable refractory material may include 10 to 300 parts by weight of a thermally expandable inorganic substance with respect to 100 parts by weight of a resin component. 30 to 400 parts by weight of a filler, and the resin composition is characterized by being formed of a resin composition material containing a total amount of the thermally expandable inorganic substance and inorganic filler of 40 to 500 parts by weight. A molded article is preferable. According to this configuration, the heat-expandable refractory material expands by heating such as a fire and can obtain a necessary volume expansion coefficient, and after expansion, a residue having a predetermined heat insulation performance and a predetermined strength is formed. Can achieve stable fireproof performance.

  As can be understood from the above description, the fireproof resin sash of the present invention can be easily applied to a general resin sash that is not fireproof by inserting a thermally expandable refractory material into the cavity of each member constituting the resin sash. Since fireproof performance can be imparted, it can be used in fireproof areas. And weight reduction of a fireproof resin sash can be achieved and opening / closing operation can be made easy. Moreover, fireproof performance can be improved by inserting a metal member into the cavity. The heat-expandable refractory material is arranged in parallel with the partition surface, and when a fire breaks out, the heat-expandable refractory material expands quickly and fireproof performance can be exhibited quickly. Since the heat-expandable refractory material is adhesively supported on the inner surface of the cavity, the construction becomes easy.

  Hereinafter, an embodiment of a fireproof resin sash according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an elevation view of a sliding sash as a fireproof resin sash according to the present embodiment, and FIG. 2 is a cross-sectional view of a main part taken along line AA of FIG. 1 and 2, the fireproof resin sash 1 is fixed to a rectangular opening formed in a structure such as a house, and can be moved horizontally in the outer peripheral opening frame 10 and inside thereof. The two sliding paper sliding doors 20 and 20 are provided.

  The opening frame 10 is composed of left and right vertical frame members 11 and 12 and upper and lower horizontal frame members 13 and 14, and the inside surrounded by the respective frame members 11 to 14 is an opening. The two shojis 20 close the opening and have substantially the same structure, and are formed into a rectangular shape from the left and right vertical saddle members 21 and 22 and the upper and lower horizontal saddle members 23 and 24. The vertical side of the central side overlaps in the front and back to form a summoning section. The opening frame 10 and the shojis 20 and 20 are configured by combining synthetic resin members composed of vertical and horizontal frame members 11 to 14 and vertical and horizontal frame members 21 to 24.

  As described above, the fireproof resin sash 1 is configured such that the two shojis 20 and 20 are slidably supported by the opening frame 10, and the shojis 20 and 20 are vertical and horizontal saddles constituting an outer peripheral frame. The window glass 25 which consists of glass with an iron net | network located in the inner peripheral side by 21-24 is supported. The window glass 25 constitutes a fire-resistant plate material, and constitutes a partition surface that partitions the outside of the fire-proof resin sash 1 from the inside. In addition, as a partition surface, it is not restricted to the window glass which has translucency, The thing which has light-shielding property like a metal plate material or a calcium plate may be used.

  The configuration of the fireproof resin sash 1 of the present embodiment is not particularly limited, and the upper, lower, left, and right frame members 11 to 14 and the eaves members 21 to 24 that constitute the sash are formed of a synthetic resin extrusion material. As long as it has a plurality of cavities penetrating along the longitudinal direction and the cross-sectional shape perpendicular to the longitudinal direction has one or a plurality of cavity spaces, any known form may be used. In addition, the synthetic resin used for each frame member and each brazing material constituting the sash may be any of hard polyvinyl chloride and ABS resin, but hard vinyl chloride is preferable from the viewpoint of advantageous fire prevention performance. Each frame material and each brazing material can be formed by extrusion molding or injection molding using these resins.

  First, the vertical frame members 11 and 12 constituting the opening frame 10 will be described in detail. The vertical frame members 11 and 12 are formed by cutting a long material obtained by extruding a synthetic resin such as hard vinyl chloride, and have a cavity penetrating along the longitudinal direction. Two large rectangular cavities 11a and 12a, and two small cavities 11b and 12b extending from the ends of the inner and outer wall surfaces forming the cavity to the opening side are provided. Further, the horizontal frame members 13 and 14 constituting the opening frame 10 are also formed with a plurality of cavities penetrating in the longitudinal direction, though not shown.

  The left and right vertical scissors 21 and 22 constituting the shoji 20 are formed by cutting a long material obtained by extruding a synthetic resin in the same manner, and six cavities 21a penetrating in the longitudinal direction in the cross section. , 22a. Further, the reed members 23 and 24 constituting the shoji 20 are also formed with a plurality of cavities penetrating in the longitudinal direction, though not shown. And the window glass 25 which consists of iron netted glass is engage | inserted by the internal space of the vertical and horizontal brazing material. The window glass 25 is located at a stepped portion of the vertical gutters 21 and 22 and is fixed by a rubber sealant or a sealing agent 26.

  The fireproof resin sash 1 shown in the present embodiment is a thermally expandable fireproof material in cavities of the opening frame body 10 and the frame members 11 to 14 that are synthetic resin members constituting the shoji 20 and the eaves members 21 to 24. It is characterized in that a fireproof sheet made of material is inserted. That is, the fire-resistant sheet 15 obtained by cutting a sheet of the heat-expandable fire-resistant material into a strip shape is selectively inserted into the large cavities 11a and 12a of the vertical frame member 11. The fireproof sheet 15 has an adhesive layer on one side, and is inserted into two large cavities of the vertical frame member 11, respectively, and is fixed to three surfaces excluding the central wall surface between the two large cavities by an adhesive layer. In addition, although not shown in figure, the fire-resistant sheet | seat is similarly inserted in the cavity which penetrates the horizontal frame members 13 and 14 to a longitudinal direction.

  Also, in the cavities 21a and 22a of the vertical fences 21 and 22 of the shoji 20, fireproof sheets 15A obtained by cutting a sheet of a heat-expandable refractory material into a strip shape are inserted into all six cavities. The fireproof sheet 15A has a flat plate shape, and is inserted in a state of being in contact with a wall surface parallel to the glass surface of the cavity. And although not shown in figure, the fireproof sheet | seat is inserted also in the upper and lower horizontal members 23 and 24 of the shoji 20 in the cavity penetrated to a longitudinal direction.

  In this manner, a large number of fireproof sheets 15 are inserted in the direction along the surface of the window glass 25 into the cavity of the opening frame 10 and the shojis 20 and 20, and are adhered to the inner wall surface of the cavity with the adhesive layer. These fireproof sheets 15 are arranged in parallel along the surface of the window glass 25 constituting the fireproof plate material to form a fireproof surface. The refractory surface thus formed fills almost the entire surface along the window glass except for each frame body in the direction perpendicular to the glass surface and the thick portion of each brazing material without any gaps.

  That is, when the fireproof resin sash 1 is viewed from the outdoor side or the front side of the indoor side, that is, the direction perpendicular to the direction along the glass surface, the vertical casings 21 and 22 surrounding the outer peripheries of the central window glasses 25 and 25 and The fireproof sheet 15 is located in front of the hollows of the horizontal frame members 23, 24. In addition, the fireproof sheet 15 is located, and the wide surfaces of all the fireproof sheets are arranged in parallel along the surface of the window glass 25 to form a fireproof surface.

  The fireproof sheets 15 and 15A are obtained by cutting a sheet material having a thickness of several millimeters of a thermally expandable fireproof material into a strip shape, and inserting the fireproof sheet along a wall surface parallel to the surface of the hollow window glass 25. Yes. Since the heat-expandable refractory material is inserted into the cavity of the synthetic resin member, it may be a molded body that matches the shape and dimensions of the cavity, and can be inserted regardless of the shape and dimensions of the cavity. Or a tape-shaped molded body is preferable. The details (composition, etc.) of the thermally expandable refractory material constituting the refractory sheets 15 and 15A will be described later.

  The heat-expandable refractory material constituting the refractory sheets 15 and 15A used in the present embodiment is a material that expands in volume and forms an expanded heat insulating layer when exposed to a high temperature such as a fire. A material that prevents the penetration of the flame by filling the portions where the synthetic resin members such as the frame members 11 to 14 and the brim members 21 to 24 are burned and burned with the expansion heat insulating layer of the thermally expandable refractory material. If it is, it will not be specifically limited. Examples of the heat-expandable refractory material include a resin composition in which a resin component described later contains a heat-expandable inorganic substance or the like, or a molded body prepared from a fire-resistant paint. The formed body is preferable.

The heat-expandable fire-resistant material constituting the fire-resistant sheets 15 and 15A is not particularly limited as long as it is a material in which the expansion component fills the portion burned and burned out of the synthetic resin member as described above, but preferably 50 kW / m ^2. The material has a volume expansion coefficient of 3 to 50 times after being heated for 30 minutes under the above heating conditions. If the volume expansion coefficient is less than 3 times, the expansion component cannot fully fill the burned part of the synthetic resin and the fire protection performance is reduced, and if it exceeds 50 times, the strength of the expansion heat insulating layer is lowered and the penetration of the flame is prevented. The above range is preferable because the effect of preventing it is reduced. More preferably, the volume expansion coefficient is 5 to 40 times, and more preferably 8 to 35 times.

  In addition, the expansion heat insulation layer of the heat-expandable refractory material is preferably a material that is self-supporting in the event of a fire, but if the synthetic resin part is thick or the resin is made of hard vinyl chloride, the expansion heat insulation layer is the synthetic resin part. In order to increase the carbonization component, the carbonization component and the expansion component may be combined and become self-supporting, and it is not always necessary for the expansion heat insulating layer to stand alone.

As described above, the heat-expandable refractory material increases the carbonization component of the synthetic resin member, so that the carbonization component and the expansion component may be combined and become self-supporting. Although it does not need to be self-supporting, it is preferable that the material is self-supporting when the thickness of the synthetic resin member is thin or when the carbonized component such as ABS resin is small. In order for the expansion heat insulation layer to be self-supporting, the strength of the expansion heat insulation layer is necessary. As the strength, the sample after the volume expansion is 0.1 m by using a 0.25 cm ² indenter with a compression tester. The stress at break when measured at a compression rate of / s is required to be 0.05 kgf / cm ² or more. If the stress at break is less than 0.05 kgf / cm ² , the adiabatic expansion layer can no longer stand by itself and the fireproof performance decreases. More preferably, it is 0.1 kgf / cm ² or more.

  If the heat-expandable refractory material is a strip or tape shaped product, the width may be shorter or longer than the width of the cavity to be inserted, as long as it satisfies the fireproof performance, May be inserted in a folded or rolled state. Further, the thickness of the molded body may be thin or thick as long as the fireproof performance is satisfied, but when it is deformed as described above, it must be thinner than the thickness that can be inserted.

  The length of the heat-expandable refractory material to be inserted needs to be the entire length of each frame member and each saddle member constituting the synthetic resin sash, but the hollow portion is narrow and the expansion component of the heat-expandable refractory material is When filling the full length of the cavity, it may be shorter than the full length. Further, the position of the cavity to be inserted may be any position as long as the expansion component of the thermally expandable refractory material and the carbonization component of the synthetic resin are continuously buried in parallel with the glass surface of the synthetic resin sash. That is, if the fireproof sheets are not arranged so as to be continuously buried, the unfilled hollow portion penetrates by fire, and the fireproof function becomes ineffective.

  In the case of a strip-shaped or tape-shaped molded body, the fire-resistant sheet is fixed in the cavity by a method using an adhesive or an adhesive, a method of fixing with a screw, and a foam or the like such as a round shape is inserted in the space between the cavity and the sheet. Or a method of injecting a foam material and then fixing it by foaming. When fixing using a pressure-sensitive adhesive or an adhesive, a molded body that has been previously coated with a pressure-sensitive adhesive or adhesive may be inserted, or may be applied to the molded body immediately before insertion. Moreover, the base material which has an adhesive or an adhesive bond layer may be laminated | stacked on the molded object, Furthermore, molded object itself may have adhesiveness. Further, in the case of a molded body that matches the shape and size of the cavity, it may be inserted as it is, or the fixing method described above may be used. By simply inserting the fireproof sheet along the cavity, the fireproof resin sash can be easily formed.

  The heat-expandable refractory material is preferably a rigid material because it is easily inserted into the cavity and fixed. For example, when the durometer hardness of the material forming the heat-expandable refractory material is measured by type A in accordance with JIS K7215, 65 or more is preferable. 75 or more is more preferable, and 80 or more is more preferable. The greater the durometer hardness, the more rigid the heat-expandable refractory material, and not only is it easier to insert into the cavity, but it can also be easily fixed in the cavity, making it a fireproof resin sash. Can be simplified.

  Next, the heat-expandable fire-resistant material constituting the fire-resistant sheets 15 and 15A will be described in detail.

  The resin component of the resin composition constituting the thermally expandable refractory material inserted into the cavity of the fireproof resin sash 1 is not particularly limited. For example, polypropylene resin, polyethylene resin, polybutene resin, polypentene resin And other thermoplastic resins such as polyolefin resins, polystyrene resins, acrylonitrile-butadiene-styrene resins, polycarbonate resins, polyphenylene ether resins, acrylic resins, polyamide resins, and polyvinyl chloride resins.

  Further, instead of the thermoplastic resin, natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), 1,2-polybutadiene rubber (1,2-BR), styrene-butadiene rubber (SBR) , Chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), ethylene-propylene rubber (EPR, EPDM), chlorosulfonated polyethylene (CSM), acrylic rubber (ACM, ANM), epichlorohydrin rubber (CO, ECO) ), Polyvulcanized rubber (T), silicone rubber (Q), fluororubber (FKM, FZ), urethane rubber (U) and the like can be used. Furthermore, thermosetting resins such as polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, and polyimide can be used.

  Among these resins, a polyolefin resin or a rubber substance is preferable from the viewpoint of being moldable at a temperature lower than the expansion temperature when blending a thermally expandable inorganic material, particularly thermally expandable graphite, which will be described later. Is preferred. Examples of the polyethylene resin include an ethylene homopolymer, a copolymer containing ethylene as a main component, a mixture thereof, an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, and the like.

  Examples of the copolymer having ethylene as a main component include ethylene-α-olefin copolymers having an ethylene portion as a main component, and examples of the α-olefin include 1-hexene and 4-methyl. Examples include -1-pentene, 1-octene, 1-butene, and 1-pentene. Specific products of the ethylene-α-olefin copolymer include commercially available products such as “CGCT” manufactured by DuPont Dow and “EXACT” manufactured by ExxonMobil Chemical. These polyolefin resins may be used alone or in combination of two or more. Moreover, in order to improve fireproof performance more, the above-mentioned rubber substance is preferable from the viewpoint that a large amount of filler can be blended.

  Further, as described above, the fireproof sheets 15 and 15A made of a thermally expansible fireproof material are fixed in the cavity of the synthetic resin member, or can be bonded to a die steel member to be described later. As the method, for example, a tackifier resin, a plasticizer, an oil or fat, a low molecular weight compound or the like is added to the rubber substance. The tackifying resin is not particularly limited. For example, rosin, rosin derivative, dammar resin, copal, coumarone-indene resin, polyterpene, non-reactive phenol resin, alkyd resin, petroleum hydrocarbon resin, xylene resin, epoxy resin, etc. Is mentioned.

  Although it is difficult for a plasticizer that imparts tackiness to exhibit tackiness alone, it is possible to improve tackiness in combination with the tackifier resin. For example, phthalate ester plasticizer, phosphate ester plasticizer, adipate ester plasticizer, sebacate ester plasticizer, ricinoleate ester plasticizer, polyester plasticizer, epoxy plasticizer, chlorinated paraffin, etc. Is mentioned.

  Oils and fats that impart tackiness can be used for the purpose of imparting plasticity and tackiness regulators because they have the same action as plasticizers. The fats and oils are not particularly limited, and examples thereof include animal fats and oils, vegetable fats and oils, mineral oils, and silicone oils. Further, the low molecular weight compound imparting tackiness can be used for the purpose of improving cold resistance and flow control in addition to imparting tackiness. It does not specifically limit as a low molecular weight compound, For example, a low molecular weight butyl rubber, a polybutene type compound, etc. are mentioned.

  Furthermore, a phenol resin and an epoxy resin are preferable from the viewpoint of increasing the flame retardancy of the resin itself and improving the fire prevention performance. In particular, an epoxy resin is preferable because the selection of the molecular structure is wide and it is easy to adjust the fireproof performance and mechanical properties of the resin composition. The epoxy resin is not particularly limited, but is basically a resin obtained by reacting a monomer having an epoxy group with a curing agent. Examples of the monomer having an epoxy group include a bifunctional glycidyl ether type, a bifunctional glycidyl ester type, and a polyfunctional glycidyl ether type.

  Examples of the bifunctional glycidyl ether type monomer include polyethylene glycol type, polypropylene glycol type, neopentyl glycol type, 1,6-hexanediol type, trimethylolpropane type, bisphenol A type, bisphenol F type, propylene oxide- Examples thereof include bisphenol A type and hydrogenated bisphenol A type. Examples of the bifunctional glycidyl ester type monomer include hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, and p-oxybenzoic acid type.

  Furthermore, examples of the polyfunctional glycidyl ether type include a phenol novolak type, an orthocresol type, a DPP novolak type, a dicyclopentadiene / phenol type, and the like. These may be used alone or in combination of two or more. Moreover, the monomer which has an above described epoxy group may be used independently, and 2 or more types may be used together.

  Examples of the curing agent for reacting with a monomer having an epoxy group to obtain an epoxy resin include polyaddition type and catalyst type. Examples of polyaddition type curing agents include aliphatic polyamines or modified amines thereof, aromatic polyamines, acid anhydrides, polyphenols, polymercaptans, and the like. Examples of catalyst type curing agents include tertiary amines, Examples include imidazoles, Lewis acids, Lewis bases and the like. In addition, the said hardening | curing agent may be used independently and 2 or more types may be used together.

In addition, other resins may be added to the epoxy resin. If the amount of other resin added increases, the effect of the epoxy resin will not be manifested, so the amount of other resin added to the epoxy resin 1 is preferably 5 (weight ratio) or less. The epoxy resin may be provided with flexibility so that it can be inserted into cavities of various shapes or dimensions. Examples of methods for providing flexibility include the following methods. .
(1) Increase the molecular weight between cross-linking points.
(2) Reduce the crosslinking density.
(3) Introducing a soft molecular structure.
(4) A plasticizer is added.
(5) Introducing an interpenetrating network (IPN) structure.
(6) Disperse and introduce rubber-like particles.
(7) Introducing microvoids.

  The method (1) is a method in which the distance between the cross-linking points is increased by causing a reaction using an epoxy monomer having a long molecular chain and / or a curing agent in advance, thereby expressing flexibility. For example, polypropylene diamine or the like is used as the curing agent. The method (2) is a method of developing flexibility by reducing the cross-linking density in a certain region by reacting with an epoxy monomer and / or a curing agent with few functional groups. As the curing agent, for example, a bifunctional amine is used, and as the epoxy monomer, for example, a monofunctional epoxy is used.

  The method (3) is a method for expressing flexibility by introducing an epoxy monomer having a soft molecular structure and / or a curing agent. As the curing agent, for example, a heterocyclic diamine, and as an epoxy monomer, for example, alkylene diglycol diglycidyl ether or the like is used. The method (4) is a method in which a non-reactive diluent such as DOP, tar, petroleum resin, or the like is added as a plasticizer.

  The method (5) is a method of expressing flexibility with an interpenetrating network (IPN) structure in which a resin having another soft structure is introduced into the crosslinked structure of the epoxy resin. The method (6) is a method in which liquid or granular rubber particles are compounded and dispersed in an epoxy resin matrix. Polyester ether or the like is used as the epoxy resin matrix. The method (7) is a method of expressing flexibility by introducing microvoids of 1 μm or less into the epoxy resin matrix. A polyether having a molecular weight of 1000 to 5000 is added as an epoxy resin matrix.

  By adjusting the rigidity and flexibility of the epoxy resin, a molded product having flexibility can be obtained from a hard plate-like material, and the fireproof sheets 15 and 15A can be inserted according to the shape and dimensions of various cavities. Is possible. Any of the above-described resins may be used alone, or a blend of two or more resins may be used to adjust the melt viscosity, flexibility, and tackiness of the resin. Furthermore, the resin may be crosslinked or modified within a range that does not impair the fireproof performance of the resin composition. It does not specifically limit as a method of bridge | crosslinking or modification | denaturation, It can carry out by a well-known method. Crosslinking or modification may be performed after blending various fillers used in the present invention or simultaneously with blending, or a resin that has been crosslinked or modified in advance may be used.

  The heat-expandable inorganic material contained in the heat-expandable refractory material constituting the fire-resistant sheets 15 and 15A is not particularly limited as long as it is a heat-expandable inorganic material that expands by heating. For example, vermiculite, kaolin, mica, heat Examples thereof include expansive graphite, metal silicate, and borate. Among these, thermally expandable graphite is preferable because of its low expansion start temperature and high expansion.

  Thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite, and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, concentrated nitric acid, perchloric acid, and perchlorine. This is a crystalline compound in which a graphite intercalation compound is produced by treatment with a strong oxidizing agent such as acid salt, permanganate, dichromate, hydrogen peroxide, etc., and maintains a layered structure of carbon. It is preferable to use the heat-expandable graphite obtained by the acid treatment as described above, further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

  Examples of the aliphatic lower amine include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, and butylamine. Examples of the alkali metal compound and the alkaline earth metal compound include hydroxides such as potassium, sodium, calcium, barium, and magnesium, oxides, carbonates, sulfates, and organic acid salts.

  The particle size of the thermally expandable graphite is preferably 20 to 200 mesh. If the particle size is smaller than 200 mesh, the degree of expansion of graphite is small, and a sufficient expanded heat insulating layer cannot be obtained. If the particle size is larger than 20 mesh, there is an advantage that the degree of expansion of graphite is large. In this case, dispersibility deteriorates, and physical properties are inevitably lowered. Examples of commercially available products of thermally expandable graphite include “GREP-EG” manufactured by Tosoh Corporation, “GRAFGUARD” manufactured by GRAFTECH, and the like.

  It is preferable to add an inorganic filler to the resin composition constituting the thermally expandable refractory material. When the expanded heat insulating layer is formed, the inorganic filler increases the heat capacity and suppresses heat transfer, and works as an aggregate to improve the strength of the expanded heat insulating layer. The inorganic filler is not particularly limited, and examples thereof include metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrites; calcium hydroxide, magnesium hydroxide And water-containing inorganic substances such as aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate.

  In addition to these, inorganic fillers include calcium salts such as calcium sulfate, gypsum fiber, calcium silicate; silica, diatomaceous earth, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, Imogolite, sericite, glass fiber, glass beads, silica balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate “MOS (Trade name), lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, dehydrated sludge and the like. These inorganic fillers may be used alone or in combination of two or more. Among the inorganic fillers, hydrous inorganic substances and / or metal carbonates are preferable.

  The water-containing inorganic substance absorbs heat due to the water generated by the dehydration reaction during heating, and the temperature rise is reduced to improve the fireproof performance, and the oxide remains after heating, which acts as an aggregate This is preferable in that the strength of the expanded layer is improved. Among water-containing inorganic substances, metal hydroxides such as calcium hydroxide, magnesium hydroxide, and aluminum hydroxide are particularly preferable because they produce a large amount of water and exhibit more fireproof performance. Magnesium hydroxide and aluminum hydroxide have different temperature ranges that exhibit the dehydration effect. If used together, the temperature range that exhibits the dehydration effect will expand, and an effective temperature rise suppression effect will be obtained. Is preferred.

  The above-mentioned metal carbonate generates carbon dioxide gas by the decarboxylation reaction during heating, and promotes the formation of the expanded layer, and the strength of the expanded layer due to the oxide remaining after heating and acting as an aggregate Is preferable in terms of improvement. Among metal carbonates, metal carbonates belonging to Group II of the periodic table, such as calcium carbonate, magnesium carbonate, zinc carbonate, and strontium carbonate, are particularly preferable because carbonation reaction easily occurs.

  As a particle size of an inorganic filler, 0.5-100 micrometers is preferable, More preferably, it is 1-50 micrometers. When the addition amount of the inorganic filler is small, the dispersibility largely affects the performance, so that the particle size is preferably small. However, when it is less than 0.5 μm, secondary aggregation occurs and the dispersibility deteriorates. When the addition amount is large, the viscosity of the resin composition increases and moldability decreases as the high filling progresses, but the viscosity of the resin composition can be decreased by increasing the particle size. A thing with a large diameter is preferable. When the particle size exceeds 100 μm, the surface properties of the molded body and the mechanical properties of the resin composition are lowered.

  In addition, it is more preferable to use an inorganic filler in combination with an inorganic filler having a large particle size and a particle having a small particle size. By using the filler in combination, a high filling is achieved while maintaining the mechanical performance of the expanded heat insulating layer. Can be realized. As the inorganic filler, for example, for aluminum hydroxide, “Hijilite H-31” (manufactured by Showa Denko) having a particle size of 18 μm, “B325” (manufactured by ALCOA) having a particle size of 25 μm, and calcium carbonate, Examples include 1.8 μm “Whiteon SB Red” (manufactured by Bihoku Powdered Industries Co., Ltd.), “BF300” (manufactured by Bihoku Powdered Industries Co., Ltd.) having a particle size of 8 μm, and the like.

  In the resin composition constituting the heat-expandable refractory material, a phosphorus compound may be further added in addition to the above components in order to increase the strength of the expansion heat insulating layer and improve the fireproof performance. The phosphorus compound is not particularly limited. For example, red phosphorus; various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate, Examples thereof include metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphates; compounds represented by the following chemical formula (1), and the like. Among these, from the viewpoint of fire prevention performance, red phosphorus, ammonium polyphosphates, and compounds represented by the following chemical formula (1) are preferable, and ammonium phosphates are more preferable in terms of performance, safety, cost, and the like. .

化学式（１）中、Ｒ１及びＲ３は、水素、炭素数１〜１６の直鎖状あるいは分岐状のアルキル基、または、炭素数６〜１６のアリール基を表す。Ｒ２は、水酸基、炭素数１〜１６の直鎖状あるいは分岐状のアルキル基、炭素数１〜１６の直鎖状あるいは分岐状のアルコキシル基、炭素数６〜１６のアリール基、または、炭素数６〜１６のアリールオキシ基を表す。

In the chemical formula (1), R1 and R3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or a carbon number Represents 6 to 16 aryloxy groups.

  As red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of safety such as moisture resistance and not spontaneously igniting during kneading, a material in which the surface of red phosphorus particles is coated with a resin is preferably used. The ammonium polyphosphates are not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. Examples of commercially available products include “AP422” and “AP462” manufactured by Clariant, “FR CROS 484” and “FR CROS 487” manufactured by Budenheim Iberica.

  The compound represented by the chemical formula (1) is not particularly limited. For example, methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methylpropylphosphonic acid, t- Butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphinic acid, phenylphosphine Examples include acid, diethylphenylphosphinic acid, diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like. Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy although it is expensive. The above phosphorus compounds may be used alone or in combination of two or more.

  When the phosphorus compound is exposed to a high temperature such as a fire, it changes to a polyphosphoric acid compound, which acts as an inorganic binder and exhibits the effect of improving the strength of the expanded heat insulating layer. Among the above metal carbonates, metal carbonates belonging to Group II of the Periodic Table, for example, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, when used in combination with the phosphorus compound, particularly ammonium polyphosphate, Since the temperature of the decarboxylation reaction is reduced, the formation of the expanded heat insulating layer is promoted. Furthermore, by using the said compound together, the change to the polyphosphoric acid type compound of a phosphorus compound is accelerated | stimulated, and the effect which further improves the intensity | strength of an expansion | swelling heat insulation layer is exhibited. In particular, the combined use of ammonium polyphosphate and calcium carbonate is preferable because both of the above effects are most exhibited.

  In the resin composition constituting the thermally expandable refractory material, the amount of the thermally expandable inorganic material is preferably 10 to 300 parts by weight with respect to 100 parts by weight of the resin component. If the blending amount is less than 10 parts by weight, the fireproof performance is lowered because the portion of the synthetic resin constituting the resin sash having a low volume expansion rate cannot be sufficiently buried, and if it exceeds 300 parts by weight, the mechanical strength is lowered. Is too large to withstand use. More preferably, it is 20-250 weight part. In the resin composition, the blending amount of the inorganic filler is preferably 30 to 400 parts by weight with respect to 100 parts by weight of the resin component. When the blending amount is less than 30 parts by weight, a sufficient fireproof performance cannot be obtained with a decrease in heat capacity, and when it exceeds 400 parts by weight, the mechanical strength is greatly decreased and cannot be used. More preferably, it is 40-350 weight part.

  In a resin composition, when adding a phosphorus compound, the compounding quantity of a phosphorus compound is 30-300 weight part with respect to 100 weight part of resin components. When the blending amount is less than 30 parts by weight, the effect of improving the strength of the expanded heat insulating layer is not sufficient, and when it exceeds 300 parts by weight, the mechanical strength is greatly lowered and cannot be used. More preferably, it is 40-250 weight part.

  The total amount of the thermally expandable inorganic substance and the inorganic filler is preferably 40 to 500 parts by weight with respect to 100 parts by weight of the resin component. When the total amount is less than 40 parts by weight, a sufficient expanded heat insulating layer cannot be obtained. When the total amount exceeds 500 parts by weight, the mechanical strength is greatly reduced and cannot be used. More preferably, it is 70-400 weight part.

  Furthermore, when adding a phosphorus compound, 70-500 weight part is preferable with respect to 100 weight part of resin components for the total amount of a phosphorus compound, a thermally expansible inorganic substance, and an inorganic filler. When the total amount is less than 70 parts by weight, a sufficient expanded heat insulating layer cannot be obtained, and when the total amount exceeds 500 parts by weight, the mechanical strength is greatly reduced and cannot be used. More preferably, it is 100-400 weight part.

  In addition, the resin composition has a phenolic, amine-based, sulfur-based antioxidant, metal harm-preventing agent, antistatic agent, stabilizer, cross-linking agent, lubricant, softener as long as its physical properties are not impaired. A pigment or the like may be added. Moreover, a general flame retardant may be added and fire prevention performance can be improved by the combustion suppression effect by a flame retardant.

  The molded body of the resin composition constituting the heat-expandable refractory material is prepared by preparing a kneaded product of the resin composition and then molding, thereby forming a molded body that matches the shape and size of the cavity, or a sheet or roll. A strip-shaped or tape-shaped molded body can be obtained by cutting after producing a shaped molded body. Further, a method of adding a solvent at the time of kneading and then volatilizing the solvent after molding may be used.

  In the case of a kneaded product of the resin composition, each of the above-mentioned components is an extruder, a hanbury mixer, a kneader mixer, a kneading roll, etc., and in the case of a thermosetting resin such as an epoxy resin, a reika machine, a planetary stirrer, etc. It can be obtained by using a known kneading apparatus. In the case of a two-component thermosetting resin, particularly an epoxy resin, a kneaded mixture of each of the two components and the filler is prepared separately by the kneading method, and is used with a plunger pump, a snake pump, a gear pump, etc. Each kneaded product may be supplied and mixed with a static mixer, a dynamic mixer or the like to produce a kneaded product.

  As a molding method of the resin composition, the kneaded material can be molded using a known method such as press molding, calender molding, extrusion molding, injection molding, or the like. In addition, as a method for molding a two-component thermosetting resin, particularly an epoxy resin, a known method may be used depending on the shape as appropriate, such as roll molding with SMC (Sheet Molding Compound) or the like, or coater molding with a roll coater or blade coater. Can be used.

  The curing method of the thermosetting resin, particularly the epoxy resin, is not particularly limited, and it is heated in the press or roll, or a heating furnace in the molding line, etc., or a molding and curing method that is continuously performed, or a heating furnace after molding. It can carry out by well-known methods, such as a method to do. Moreover, when shape | molding using a solvent, a solvent can be volatilized by the method similar to the above.

  As a method for forming the sheet-shaped or roll-shaped molded body formed by the above-described forming method into a strip shape or a tape shape, a known method such as a cutting process, a slit process, or a ring cutting process can be used. As for the thickness in case the molded object of a resin composition is strip shape or tape shape, 0.1-6 mm is preferable. When the thickness is less than 0.1 mm, the thickness of the expanded heat insulating layer formed by heating becomes thin, and sufficient fireproof performance cannot be exhibited. Moreover, when it exceeds 6 mm, it may become impossible to insert in a cavity. More preferably, it is 0.3-4 mm.

  In the resin composition, a net or a mat made of a noncombustible fibrous material may be laminated in order to further improve the strength of the expanded heat insulating layer. The net or mat made of non-combustible fibrous material is preferably made of inorganic fiber or metal fibrous material. For example, glass fiber woven fabric (glass cloth, roving cloth, continuous strand mat, etc.) or non-woven fabric ( A chopped strand mat or the like), a ceramic fiber woven fabric (ceramic cloth or the like) or a non-woven fabric (ceramic mat or the like), a carbon fiber woven or non-woven fabric, a net or a mat formed from a lath or a wire mesh is preferably used.

  Of these nets or mats, a glass fiber woven or non-woven fabric is preferred from the viewpoint of ease and cost when producing a heat-expandable refractory material. preferable. Furthermore, the glass cloth may be treated with a melamine resin, an acrylic resin, or the like because the handleability is improved and the adhesion with the resin is improved. In the case of a thermosetting resin, particularly an epoxy resin, the net or mat may be impregnated in the resin composition.

The net or mat made of non-combustible fibrous material has a weight per 1 m ² of 5 to 2000 g. When the weight per 1 m ² is less than 5 g, the effect of improving the shape retention of the expanded heat insulating layer is lowered, and when it exceeds 2000 g, the sheet becomes heavy and the construction becomes difficult. More preferably, it is 10-1000 g. The thickness of the net or mat made of this incombustible fibrous material is preferably 0.05 to 6 mm. When the thickness is 0.05 mm or less, the thermally expandable refractory material cannot withstand the expansion pressure when it expands. On the other hand, if the thickness exceeds 6 mm, it becomes difficult to insert the thermally expandable refractory material in a folded or rolled state. More preferably, it is 0.1-4 mm.

  In the case of a net made of a non-combustible fibrous material, the opening is preferably 0.1 to 50 mm. When the opening is less than 0.1 mm, the thermally expandable refractory material cannot withstand the expansion pressure when it expands. Moreover, when it exceeds 50 mm, the effect which improves the shape retainability of an expansion | swelling heat insulation layer will become low. More preferably, it is 0.2-30 mm. When the thermosetting resin composition is impregnated with a net or mat made of this non-combustible fibrous material, the net or mat may be located at any position in the thickness direction of the thermally expandable refractory material. In order to further enhance the shape retention of the layer, the surface side exposed to a flame is preferable.

  In the thermally expandable refractory material, a base material layer may be laminated on one side or both sides of the molded body of the resin composition for the purpose of improving workability and strength of the expanded layer. Examples of the material used for the base material layer include cloth, nonwoven fabric made of polyester, polypropylene, and the like, paper, plastic film, split cloth, glass cloth, aluminum glass cloth, aluminum foil, aluminum vapor deposition film, aluminum foil laminated paper, and And a laminate of these materials. Among these base material layers, an aluminum foil laminated paper and an aluminum glass cloth are preferable because the polyethylene laminated polyester nonwoven fabric works advantageously in fireproof performance because it is easy to apply and apply a pressure-sensitive adhesive or an adhesive. Further, the thickness of the base material layer may be any as long as it does not affect fireproof performance or construction, but is preferably 0.25 mm or less.

  Furthermore, the heat-expandable refractory material may be formed by laminating a laminate of a net or mat made of a non-combustible fibrous material and a base material layer on a sheet surface made of a resin composition. As a laminated body, the laminated body of an aluminum glass cloth or a poly film and a glass cloth etc. are mentioned, for example. Examples of the method of laminating or impregnating a base layer or a net or mat made of a non-combustible fibrous material include a method of integrating at the stage of molding the resin composition.

  When a pressure-sensitive adhesive or adhesive is previously applied or applied to a heat-expandable refractory material and fixed in a cavity of a synthetic resin member, the pressure-sensitive adhesive or adhesive used is a resin of a synthetic resin member. Any one can be used as long as it adheres or adheres, and examples thereof include acrylic, epoxy, and rubber. In addition, when a base material having a pressure-sensitive adhesive or an adhesive layer is previously laminated on the molded body, it may be laminated at the time of molding, or a base material having a pressure-sensitive adhesive or an adhesive on both sides may be laminated on the molded body. .

  Since the heat-expandable refractory material is excellent in fireproofing performance as described above, it is possible to reduce the heat-expandable material necessary to exhibit fireproof performance, so the weight and weight of the fireproof resin sash can be reduced. Cost can be reduced. In addition, as described above, a strip-shaped or tape-shaped molded body can be easily manufactured using a known technique, and can be easily inserted regardless of the shape and size in the cavity, and can easily be fire-resistant resin. It becomes possible to manufacture a sash.

  In the fireproof resin sash 1 of the present embodiment configured as described above, the fireproof sheets 15 and 15A made of a thermally expanded fireproof material are placed in a cavity of a resin member made of a synthetic resin along the surface of a window glass or the like. By selecting and inserting so that a refractory surface is formed, the portion of the resin part of the synthetic resin that burns and burns out in the event of a fire is buried by the expansion insulation layer of the refractory sheet and the penetration of the flame or heat Can be prevented from entering.

  When a fire occurs on the indoor side or the outdoor side of the fireproof resin sash 1, the heat of the fire heats the fireproof sheets 15 and 15A inserted into the cavity of the synthetic resin member. Since all the surfaces of the refractory sheet are arranged in parallel along the window glass 25 and the refractory resin sash 1 is viewed from the front, for example, almost the entire surface is completely filled, the refractory heat insulating layer formed by thermal expansion is provided. It is formed on almost the entire surface without any gaps, and there is no partial weakness, and fire prevention performance is stabilized.

  Further, since the fireproof sheets 15 and 15A face the heat source of the fire on a wide surface, the heat is efficiently transmitted and quickly expands. For this reason, when a fire occurs, fire prevention performance can be exhibited quickly. That is, when the refractory sheet is arranged perpendicular to the partition surface, heat such as fire is transmitted only from the end face of the refractory sheet, the thermal expansion is slow, and the fire prevention performance cannot be exhibited quickly. Then, rapid thermal expansion becomes possible.

  Furthermore, the fireproof sheets 15 and 15A, which are heat-expandable fireproof materials, and the window glass 25 made of iron netted glass, which is a fireproof plate material, are configured to cover the openings of the fireproof resin sash 1, and the openings Is covered with a refractory surface, it is possible to remove local weak points at the time of a fire and improve fire prevention performance. If the fireproof sheet 15 itself has adhesiveness or is coated with an adhesive on one side, it can adhere to the inner wall surface of the cavity when it is inserted into the cavity of the synthetic resin member, and the construction becomes easy. .

  Further, by using a heat-expandable refractory material having a high volume expansion rate and strength of a heat-insulating rising layer, it is possible to reduce the heat-expandable refractory material to be inserted, thereby further reducing the cost. Further, by using a fire-resistant sheet of a molded body made of a resin composition, a strip-shaped or tape-shaped molded body can be easily manufactured using a known technique, and can be easily inserted regardless of the shape and size in the cavity. It is possible to easily manufacture a fireproof resin sash.

  Another embodiment of the present invention will be described in detail with reference to FIG. FIG. 3 is a cross-sectional view of an essential part of another embodiment of the fireproof resin sash according to the present invention. In addition, this embodiment is characterized in that a die steel member is inserted as a metal member together with a fire-resistant sheet of a heat-expandable fire-resistant material in the cavity. The shape steel member can be inserted into a part or a plurality of cavities, and may be inserted into all the cavities. Other substantially equivalent configurations are denoted by the same reference numerals, and detailed description thereof is omitted. This embodiment corresponds to Example 2 described later.

  In FIG. 3, in the cavities 11a and 12a of the vertical frame members 11 and 12 which are synthetic resin members of the fireproof resin sash 1A, a fireproof sheet 15B having adhesiveness to the die steel member 16 is formed in an L-shape as a metal member. The one that is bonded and integrated is inserted. The shape steel member 16 has a substantially U-shaped cross section, and has a shape along three surfaces excluding the surface sandwiching the central wall portion. And although not shown in figure, the fireproof sheet | seat and the shape steel member are similarly inserted also in the cavity of the horizontal frame materials 13 and 14. FIG. As a result, the inside of the cavities of the vertical frame members 11 and 12 has a configuration in which all the outer peripheral surfaces except the central wall between the two cavities are reinforced with the die steel member 16.

  Also, tape-shaped fireproof sheets 15C are inserted into four of the six cavities of the vertical fences 21 and 22 constituting the shoji 20, and are fixed to the wall surface parallel to the glass surface by the adhesiveness of the fireproof sheets. ing. Thus, by inserting fireproof sheets continuously into cavities adjacent to each other along the glass surface, the fireproof performance can be made effective without interruption of the heat insulating layer expanded in the event of a fire. Then, one of the six cavities is inserted with a steel sheet member 16A whose cross-sectional shape is bent into a substantially L-shape and a refractory sheet 15C bonded and integrated. Although not shown, a fireproof sheet and a steel plate member are also inserted into the cavities 23, 24.

  The metal members such as the steel mold members 16 and 16A are inserted into a part or the whole of the cavity of the synthetic resin member, but may be a cavity into which the thermally expandable refractory material is not inserted or inside the cavity to be inserted. . Moreover, a some type steel member may be inserted in the same cavity. When inserting the refractory sheets 15B and 15C of the thermally expandable refractory material and the die steel members 16 and 16A into the same cavity, the ones bonded and integrated with the die steel member through the adhesive layer or the adhesive layer described above are integrated. It may be inserted.

  For fixing the steel mold members 16 and 16A in the cavity, it is possible to simply insert a member suitable for the shape and dimensions in the cavity as it is, or use the same fixing method as that for the above-mentioned thermally expandable refractory material. When using the shape steel members 16 and 16A as metal members, the shape is not particularly limited as long as the shape steel members 16 and 16A can be inserted into the cavity, but flat plate type, groove type, square type, L type, mountain type, I type, T type Etc. Moreover, it does not specifically limit as a material of the shape steel members 16 and 16A, Iron, stainless steel, aluminum etc. are mentioned.

  The fireproof resin sash 1A of this embodiment has the same effect as the above-described embodiment, and is made of metal inserted into the cavities of the frame members 11 to 14 and the eaves members 21 to 24, which are synthetic resin members. The shape steel members 16 and 16A, which are members, exhibit the effect of supplementarily improving the fireproof performance when the synthetic resin member is burned down by a fire. In addition, by using a die steel member in combination, the thickness of the heat-expandable refractory material can be suppressed and the cost can be reduced.

  FIG. 4 shows a modification of another embodiment of the present invention, and shows Example 3 to be described later. In the fireproof resin sash 1B shown in this embodiment, a fireproof sheet and a metal member are inserted into the cavity along the longitudinal direction of the synthetic resin member, and compared with the fireproof resin sash 1A shown in FIG. A thin fireproof sheet is used.

  That is, in the vertical frame member cavities 11a and 12a constituting the opening frame 10, a thin fireproof sheet 15D is pasted and inserted on two orthogonal surfaces of a metal square pipe-shaped die steel member 16B. It arrange | positions in parallel along the surface of the window glass 25 which comprises a partition surface. Moreover, although not shown in figure, a thin fireproof sheet is similarly inserted also in the horizontal frame, and it is arrange | positioned in parallel with the window glass. Then, a thin fireproof sheet 15E is inserted into the vertical cavities 21a, 22a of the shoji 20, 20, and is inserted into one hollow by being attached to a metal square pipe-shaped die steel member 16C. It is arrange | positioned in parallel along the surface of this with almost no gap. Similarly, a thin fireproof sheet is also inserted and arranged in the hollow of the reed material not shown. This fireproof resin sash 1B has an effect equivalent to that of each of the embodiments described above.

  In the cavity of the synthetic resin member, as described above, the heat-expandable refractory material and the steel mold member are inserted. In these cavities, each member of the resin sash at the time of heating and the synthetic resin of each brazing material are inserted. Synthetic resins, foams, inorganic materials other than metals may be inserted at the same time in order to further suppress deformation and improve heat insulation.

  Although it does not specifically limit as a synthetic resin inserted simultaneously in this way, For example, a hard polyvinyl chloride, an ABS resin, etc. are mentioned. The foam that is inserted into the cavity at the same time is not particularly limited. For example, phenol foam, urethane foam, polyethylene foam, polypropylene foam, polystyrene foam, and the like, and inorganic powder such as aluminum hydroxide in these foam materials. You may use what was filled. Furthermore, an inorganic foam etc. are mentioned.

  Inorganic materials other than metal inserted simultaneously into the cavity are not particularly limited, but gypsum board, calcium silicate board, fiber reinforced gypsum board, lightweight cellular concrete (ALC) board, extruded cement board, PC board, pottery Etc.

  Next, a comparative experiment between an example using the present invention and a normal synthetic resin sash will be described.

  (Examples 1 to 3) The epoxy monomer (“E807” manufactured by Japan Epoxy Resin Co., Ltd.), the curing agent for epoxy (“FL052” manufactured by Japan Epoxy Resin Co., Ltd.), and butyl rubber (Exxon) in the blending amount (parts by weight) shown in FIG. “Butyl rubber 065” manufactured by Mobil Chemical Co., Ltd., polybutene (“Polybutene 100R” manufactured by Idemitsu Petrochemical Co., Ltd.), hydrogenated petroleum resin (“Escollet 5320” manufactured by Tonex Co., Ltd.), ammonium polyphosphate (“Exolit AP422” manufactured by Clariant), Thermally expandable graphite (“GREP-EG” manufactured by Tosoh Corporation), aluminum hydroxide (“B325” manufactured by ALCOA), and calcium carbonate (“BF300” manufactured by Bihoku Flour Industry Co., Ltd.) are kneaded in a kneader, and the resin composition I got a thing.

Example 1
The resin composition obtained by the above method was formed into a sheet shape by laminating a polyethylene laminated polyester nonwoven fabric on one side with a roll coater, and then cured in a heating furnace to obtain a sheet-like formed body having a thickness of 1 mm. An acrylic resin-based pressure-sensitive adhesive was applied to the obtained sheet-shaped molded body, and was cut with a cutting machine according to the width of the cavity to be inserted, to produce a strip-shaped molded body having an adhesive layer on one side.

  The fireproof sheets 15 and 15A, which are the formed strip-shaped molded bodies, are inserted into the open frame body 10 and the shoji 20 of the sliding sash shown in FIGS. 1 and 2, and the positions as shown in FIG. Fixed to. Moreover, although not shown in FIG. 2, the fireproof sheet was inserted in the summing part of the two shoji screens with the same specifications as the cocoons, and the hard vinyl chloride resin sash 1 was produced.

(Example 2)
After the resin composition obtained by the above method is laminated on the aluminum foil side of the aluminum foil release paper by calender molding to produce a roll-shaped molded body having a thickness of 3 mm, it is applied to a ring cutter according to the width of the cavity to be inserted. The refractory sheets 15B and 15C were obtained. By utilizing the self-adhesiveness of the resin composition of the fireproof sheets 15B and 15C, the grooved or L-shaped steel member 16A is bonded and integrated, and as shown in FIG. Inserted into. Moreover, the fireproof sheet 15C was inserted into the cavity of the shoji 20, and fixed with the adhesiveness of the sheet. Further, although not shown in FIG. 3, a fireproof sheet and a steel plate member having the same specifications as those of the saddle material were also inserted in the summing portion of the two shojis to produce a hard vinyl chloride resin sash 1A.

(Example 3)
The resin composition obtained by the above method was molded into a sheet while impregnating a glass cloth with SMC, and then cured in a heating furnace to obtain a sheet-like molded body having a thickness of 1 mm. After sticking an acrylic resin double-sided tape on one side of the obtained sheet-like molded body, a strip-shaped molded body having an adhesive layer on one side was prepared according to the width of the cavity to be inserted by a cutting machine, and the fireproof sheet 15D 15E was obtained. The fireproof sheets 15D and 15E were bonded to and integrated with the square shaped steel members 16B and 16C and inserted into the cavities of the opening frame 10 and the shoji 20 as shown in FIG. Moreover, the fireproof sheet 15E was inserted in the cavity of the shoji 20, and was fixed by the adhesiveness of the sheet. Furthermore, although not shown in FIG. 4, in the summoning part and the summing part of the two shojis, a fireproof sheet and a steel plate member having the same specifications as those of the firewood are inserted, and the rigid vinyl chloride resin sash 1B is inserted. Was made.

(Comparative Example 1)
As shown in FIG. 5, a hard vinyl chloride resin sash 1C was produced without inserting a fireproof sheet of a thermally expandable fireproof material and a die steel member.

And the result of having evaluated the said Examples 1-3 and the comparative example 1 with the method shown below is shown in FIG.
(1) Volume expansion coefficient: Using a corn calorimeter (“CONE2A” manufactured by Atlas Co., Ltd.), a sample having a length of 100 mm, a width of 100 mm, and a thickness shown in FIG. 6 is heated for 30 minutes under an irradiation heat amount of 50 kW / m ^2. The dimensions of the sample were measured, and the volume expansion coefficient was calculated by the following formula.
Volume expansion coefficient = {length after heating (mm) × width after heating (mm) × thickness after heating (mm)} / {100 × 100 × thickness before heating (mm)}

(2) Stress at break: The sample after volume expansion was compressed to a compression speed of 0.1 m / s using a compression tester (“Finger Feeling Tester” manufactured by Kato Tech Co., Ltd.) with an indenter of 0.25 cm ^2. Then, the stress at break was measured.

(3) Fireproof performance: Fire resistance test is conducted for 20 minutes in accordance with ISO834, ○ for those with no flame on the back side and no flame penetration for 20 minutes, and for those with flame or flame penetration within 20 minutes × It was. As a result of the experiment, as shown in FIG. 6, each of Examples 1 to 3 has an evaluation of fire prevention performance of “◯”, and in the case of a comparative example, “X”. Was confirmed.

  Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention described in the claims. Design changes can be made. For example, although the example of the shape steel was shown as a metal member inserted in a cavity, metal materials, such as aluminum and an aluminum alloy, may be sufficient. A part of the vertical and horizontal frame members and the vertical and horizontal frame cavities are opened, and the openings may be closed with a steel plate member.

  In addition, as an example of a fireproof resin sash, an example of a sliding door with a sliding glass door is shown, but the present invention is not limited to this, and a vertically movable glass door, a glass door with a deadlock, a metal door, a rotating door It can be applied to appropriate doors such as open / close doors, sliding doors, and sliding doors.

  Furthermore, although the example of the window glass which consists of iron netted glass was shown as a fireproof board material supported by the fireproof resin sash, you may use a metal board | plate material as a flat end plate. That is, the shoji portion constituting the fireproof resin sash includes a frame-shaped casing surrounding the outer periphery and a fireproof plate inside the casing, and a metal end plate may be used as the fireproof plate. it can.

The elevation view of one embodiment of the fireproof resin sash concerning the present invention. FIG. 2 is a cross-sectional view of a main part taken along line AA in FIG. 1 (Example 1). The principal part sectional drawing of other embodiment (Example 2) of the fireproof resin sash which concerns on this invention. The principal part sectional drawing of other embodiment (Example 3) of the fireproof resin sash which concerns on this invention. Sectional drawing of the principal part of the synthetic resin sash of a comparative example. The table | surface which shows the fireproof performance of the compounding quantity (weight part) of Examples 1-3 and the comparative example 1. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1A, 1B ... Fireproof resin sash, 10 ... Opening frame, 11, 12 ... Vertical frame material (synthetic resin member), 13, 14 ... Horizontal frame material (synthetic resin member), 20 ... Shoji, 21 , 22 ... Vertical coffin material (synthetic resin member), 23, 24 ... Horizontal coffin material (synthetic resin member), 15, 15A-15E ... Fire-resistant sheet (thermally-expandable fire-resistant material), 16, 16A-16C ... Shape steel Member (metal member), 11a, 12a, 21a, 22a ... hollow, 25 ... window glass (fireproof plate material constituting partition surface)

Claims (3)

An opening frame formed by a synthetic resin frame member having a plurality of cavities along the longitudinal direction, a fire-resistant plate that closes the opening of the opening frame, and an outer frame that supports the outer periphery of the plate When, a fireproof resin sash having,
In selected cavity of the cavity of the opening frame, the metal member which cross section along its longitudinal direction has a substantially U-shaped or square pipe shape, plate-like having adhesiveness A fireproof sheet adhering member in which a thermally expandable refractory material is bonded and integrated is inserted so as to have a space in the cavity,
A plate-like thermally expandable refractory material or a plate-like thermally expandable refractory material having adhesiveness to a metal member is pasted in a selected cavity among the cavities of the outer peripheral frame body along the longitudinal direction thereof. The fireproof sheet attaching member integrated together is inserted so as to have a space in the cavity,
The thermally expandable fireproof material, when viewed from a direction perpendicular the direction along the surface of the front Symbol plate, arranged so that flat wide surface of the heat expandable fireproof material coincides with the direction along the plane of the plate A fireproof resin sash that expands in volume when the fireproof resin sash is heated to form a fireproof heat insulating layer without a gap .   The fire-resistant material according to claim 1, wherein the thermally expandable refractory material is formed in a strip shape or a tape shape, and is inserted so that a wide surface thereof is arranged in a direction along the surface of the plate material. Resin sash.   The thermally expandable refractory material contains 10 to 300 parts by weight of a thermally expandable inorganic material and 30 to 400 parts by weight of an inorganic filler with respect to 100 parts by weight of a resin component. The fireproof resin sash according to claim 1, wherein the fireproof resin sash is formed of a resin composition material containing a total amount of 40 to 500 parts by weight.

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