JP2019112631A - Fireproof and soundproof panel - Google Patents

Abstract

To provide a fireproof and soundproof panel having a polyurethane foam excellent in sound proofness and fire resistance.SOLUTION: A fireproof and soundproof panel is formed by laminating a fireproof and soundproof layer formed by molding an urethane resin composition containing a flame retardant and a sheath material, in which the urethane resin composition containing the flame retardant contains an urethane resin, a weight average molecular weight of a polyol compound contained in the urethane resin is in a range of 1,000 to 20,000, the flame retardant is at least one of red phosphorus and a phosphate-containing flame retardant, and at least one of the red phosphorus and the phosphate-containing flame retardant is in a range of 0.1 pts.wt. to 60 pts.wt. to 100 pts.wt. of the urethane resin.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire protection sound insulation panel.

The polyurethane foam is obtained by curing the urethane resin composition. Since this polyurethane foam has sound insulation, it is considered for the use of a soundproofing material.
However, although the said polyurethane foam is excellent in sound insulation, it has the fault of being easy to burn. For this reason, studies are being made to make the polyurethane foam incombustible.

  With regard to flame retardancy of polyurethane foam, polyurethane foam obtained by reacting polyisocyanate and polyol in the presence of aromatic phosphoric acid ester has been proposed. The above-mentioned aromatic phosphate is added in the range of 200 to 1000 parts by weight with respect to a total of 100 parts by weight of polyisocyanate and polyol, and this polyurethane foam is considered to be excellent in soundproofness and fire resistance (patented) Literature 1).

  In addition, polyurethane foam in which a polyisocyanate, a polyol, a flame retardant and a foaming agent are blended, and a styrenic polymer polyol is used as the polyol is considered to be excellent in sound absorption characteristics and flame retardancy (Patent Document 2) .

  Furthermore, with respect to flame retardancy of polyurethane foam, polyurethane foams have also been proposed, which are blended with polyisocyanate, polyol and a foaming agent, and 3 to 25% by weight of tris (trihaloneopentyl) phosphate is blended. This polyurethane foam is considered to be excellent in sound absorption and flame resistance (Patent Document 3).

Japanese Patent Application Laid-Open No. 4-136013 Japanese Patent Application Laid-Open No. 7-233236 Japanese Patent Application Laid-Open No. 11-124496

However, in the case of the above-mentioned prior art, there is a problem that the polyurethane foam obtained is easily ignited.
The object of the present invention is to provide a fireproof soundproof panel which is excellent in soundproofness and fire resistance.

  In order to solve the above problems, as a result of intensive investigations by the present inventors, a fireproof soundproof panel formed by laminating a fireproof soundproof layer formed by molding a urethane resin composition containing a flame retardant and an exterior material is It has been found that the object of the present invention is met, and the present invention has been completed.

That is, the present invention
[1] A fireproof soundproof panel formed by laminating a fireproof soundproof layer formed by molding a urethane resin composition containing a flame retardant, and an exterior material,
The urethane resin composition containing the flame retardant contains a urethane resin,
The weight average molecular weight of the polyol compound contained in the urethane resin is in the range of 1,000 to 20,000,
The flame retardant is at least one of red phosphorus and a phosphate containing flame retardant,
At least one of the red phosphorus- and phosphate-containing flame retardants is in the range of 0.1 parts by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin.
Provides fire protection and sound insulation panels.

Moreover, one of the present invention is
[2] The flame retardant includes at least one selected from the group consisting of phosphate ester, bromine containing flame retardant, boron containing flame retardant and antimony containing flame retardant in addition to the red phosphorus and phosphate containing flame retardant , The fireproof sound insulation panel as described in said [1] is provided.

Moreover, one of the present invention is
[3] At least one member selected from the group consisting of phosphoric acid ester, bromine-containing flame retardant, boron-containing flame retardant and antimony-containing flame retardant contained in the above-mentioned flame retardant is 0.1 parts to 100 parts by weight of the urethane resin, respectively. It provides the fireproof soundproof panel as described in said [2] which is the range of weight part-60 weight part.

Moreover, one of the present invention is
[4] The urethane resin composition containing the flame retardant includes a trimerization catalyst which promotes trimerization reaction of isocyanate groups contained in the urethane resin,
The fire prevention and sound insulation panel according to any one of the above [1] to [3], wherein the trimerization catalyst is in the range of 0.01 parts by weight to 10 parts by weight with respect to 100 parts by weight of the urethane resin. It is a thing.

Moreover, one of the present invention is
[5] The fireproofing panel according to any one of the above [1] to [4], wherein the urethane resin composition containing the flame retardant contains at least one of a foam stabilizer and a foaming agent. .

Moreover, one of the present invention is
[6] The fireproof and soundproof panel according to any one of the above [1] to [5], wherein the fireproof and soundproof layer is disposed between two facing exterior materials.

Moreover, one of the present invention is
[7] The fireproof and soundproof panel according to any one of the above [1] to [6], further comprising a heat insulating layer in addition to the fireproof and soundproof layer.

Moreover, one of the present invention is
[8] The fireproof and soundproof panel according to any one of the above [1] to [7], wherein the frame member is installed on the outer periphery of the two facing exterior members.

Moreover, one of the present invention is
[9] The fire prevention and sound insulation panel according to any one of the above [1] to [8], wherein the exterior material is at least one selected from the group consisting of an organic material, an inorganic material and a metal material. is there.

  Since the fireproof soundproofing layer obtained by using the urethane resin composition containing the flame retardant is excellent in soundproofness and hard to ignite, the fireproof soundproofing panel using the fireproof soundproofing layer has excellent soundproofness and fire resistance. It can be demonstrated.

FIG. 1 is a schematic cross-sectional view of a fire prevention and heat insulation panel according to a first embodiment. FIG. 2: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 1st embodiment. FIG. 3: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 1st embodiment. FIG. 4: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 1st embodiment. FIG. 5: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 2nd embodiment. FIG. 6: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 2nd embodiment. FIG. 7: is a schematic diagram for demonstrating the manufacturing process of the fire prevention heat insulation panel which concerns on 2nd embodiment. FIG. 8 is a cross-sectional view for explaining the structure of the fire protection and insulation panel according to the third embodiment.

The fireproof and soundproof panel according to the present invention is formed by laminating a fireproof soundproof layer formed by molding a urethane resin composition containing a flame retardant and an exterior material.
The fire and soundproof panel has, for example, a two-layer structure in which the fireproof soundproof layer and the exterior material are laminated one by one,
Three-layer structure in which the three layers of the exterior material, the fireproof thermal insulation layer, and the exterior material are laminated in the order of exterior material-fireproof thermal insulation layer-exterior material,
The thing more than four-layer structure etc. which added the heat insulation layer etc. in addition to the said fireproof soundproof layer between the said exterior material and the exterior material can be mentioned.

Hereinafter, the first embodiment according to the present invention will be described as one specific example with reference to the drawings.
FIG. 1 is a schematic cross-sectional view of a fire prevention and sound insulation panel according to a first embodiment.
As shown in FIG. 1, the fire and soundproof panel 100 according to the first embodiment is formed by laminating a fireproof soundproof layer 10 between two exterior materials 1 and 1.

2 to 4 are schematic views for explaining the manufacturing process of the fire prevention and sound insulation panel according to the first embodiment.
As a method of forming the said fire prevention sound insulation panel 100, the following method is mentioned, for example.
First, the exterior material 1 is placed in the form 2. Subsequently, the urethane resin composition 3 containing a flame retardant is poured onto the exterior material 1. Next, the second packaging material 1 is placed on the urethane resin composition 3 containing the flame retardant.
After the urethane resin composition 3 containing the flame retardant is cured, the fireproof and soundproof panel 100 can be obtained by removing the form 2.

5-7 is a schematic diagram for demonstrating the manufacturing process of the fire prevention sound insulation panel concerning 2nd embodiment.
The fire prevention and sound insulation panel 110 which concerns on 2nd embodiment differs in the point provided with the frame material 20 compared with the fire prevention and sound insulation panel 100 which concerns on 1st embodiment.

A frame member 20 is installed on the outer periphery of the two exterior members 1 facing each other in parallel. The frame member 20 is installed in three of the four side surfaces of the two exterior members 1, 1 in the upper, lower, right, and left sides of the two exterior members 1, 1 in which the frame member 20 is not installed. The side faces form an opening 30.
The urethane resin composition 3 containing a flame retardant is poured into the space 40 surrounded by the two exterior materials 1 and 1 and the frame material 20 from the opening 30.
After the urethane resin composition 3 containing the flame retardant is cured, the fireproof and soundproof panel 110 can be obtained by installing the frame member 20 in the opening.

FIG. 8 is a cross-sectional view for explaining the structure of the fire prevention and sound insulation panel according to the third embodiment.
The fire prevention and sound insulation panel 120 according to the third embodiment includes the heat insulating layer 50 as compared to the fire prevention and sound insulation panel 100 according to the first embodiment and the fire prevention and sound insulation panel 110 according to the first embodiment. It is different.
The fire protection and sound insulation panel according to the present invention comprises the fire protection and sound insulation panel 100 according to the first embodiment and the fire protection and sound insulation panel 110 according to the first embodiment. The structure is not limited to the three-layer structure in which the layer 10 is laminated, and may be a four-layer structure as shown in FIG. 8 or a five-layer or more laminated structure may be adopted as needed. .

Next, constituent members used in the present invention will be described.
As an exterior material used for this invention, 1 or more types, such as an organic material, an inorganic material, a metal material, are mentioned, for example.
The exterior material is not limited to a plate material, and may be thin as, for example, a sheet material or a film material.
In addition, the board | plate material used for this invention says the thing which maintains a fixed shape, without bending in the location hold | maintained when hold | gripping holding one end.
Further, the sheet material refers to one that is broken at a portion held when holding by holding one end.
Among the sheet materials, one having a thickness of less than 100 μm is referred to as a film.

Examples of the organic material include synthetic resin, wood, paper, woven fabric, non-woven fabric and the like.
Examples of the synthetic resin include polyethylene, polypropylene, polyamide, polyester, polycarbonate and the like.
Examples of the paper include kraft paper and corrugated paper.
Examples of the woven fabric include fabrics woven using polypropylene, polyester, nylon, cellulose fibers and the like.
Examples of the non-woven fabric include wet non-woven fabrics made of polypropylene, polyester, nylon, cellulose fibers and the like, long-fiber non-woven fabrics and the like.

Examples of the inorganic material include cement-based panels and inorganic ceramic-based panels.
Examples of the cement-based panel include hard wood cement sheets, inorganic fiber-containing slate boards, lightweight cellular concrete boards, mortar boards, and precast concrete boards.
Examples of the inorganic ceramic panel include gypsum board, calcium silicate board, calcium carbonate board, mineral wool board, ceramic board and the like.

  Here, as the gypsum board, specifically, lightweight materials such as sawdust and perlite are mixed into calcined gypsum, and thick paper is pasted on both sides and formed, for example, ordinary gypsum board (according to JIS A6901: GB-R ), Cosmetic gypsum board (JIS A6911: GB-D), waterproof gypsum board (JIS A6912: GB-S), reinforced gypsum board (JIS A6913: GB-F), sound absorbing gypsum board (JIS A6301: GB) -P) and the like.

Examples of the metal material include metal plates such as iron plates, stainless steel plates, galvanized steel plates, aluminum zinc alloy plated steel plates, aluminum plates, etc.
Examples include metal foils such as aluminum kraft, copper foil and gold foil.

The exterior material used in the present invention can be obtained by appropriately laminating one or two or more of the synthetic resin, wood, paper, woven fabric, non-woven fabric and the like.
The exterior material usually has a thick rectangular shape, but the shape and thickness can be appropriately adjusted according to the purpose and application.

  As the frame material used in the present invention, the same one as the above-described exterior material can be used.

In the present invention, as described above, the exterior material and the heat insulating layer can be laminated.
As a raw material used for the said heat insulation layer, a resin type heat insulating material, an inorganic type heat insulating material etc. can be mentioned, for example.
Here, examples of the resin-based heat insulating material include those made of polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyethylene, acrylic, vinyl chloride, polyvinyl alcohol, ethylene-vinyl acetate copolymer, cellulose triacetate and the like. Polycarbonate and vinyl chloride are preferred because they are self-extinguishing and are suitable as a construction material.
Moreover, as an inorganic heat insulating material, what contains inorganic fibers, such as rock wool, ceramic wool, glass wool other than the said cement-type panel and an inorganic ceramic type panel, etc. can be mentioned, for example.

Next, the urethane resin composition used for this invention is demonstrated.
First, the urethane resin used for the said urethane resin composition is demonstrated.
Examples of the urethane resin include those containing a polyisocyanate compound as a main ingredient, a polyol compound as a curing agent, and the like.
As a polyisocyanate compound which is a main ingredient of the above-mentioned urethane resin, aromatic polyisocyanate, alicyclic polyisocyanate, aliphatic polyisocyanate etc. are mentioned, for example.

Examples of the aromatic polyisocyanate include phenylene diisocyanate, tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, dimethyldiphenylmethane diisocyanate, triphenylmethane triisocyanate, naphthalene diisocyanate, polymethylene polyphenyl polyisocyanate and the like.
Examples of the alicyclic polyisocyanate include cyclohexyl diisocyanate, methyl cyclohexyl diisocyanate, isophorone diisocyanate, dicyclohexyl methane diisocyanate, and dimethyl dicyclohexyl methane diisocyanate.

Examples of the aliphatic polyisocyanate include methylene diisocyanate, ethylene diisocyanate, propylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate and the like.
The said polyisocyanate compound can be used 1 type or 2 types or more.
The main agent of the urethane resin is preferably diphenylmethane diisocyanate from the viewpoints of ease of use and availability.

The weight average molecular weight of the polyol compound which is a curing agent of the urethane resin used in the present invention is in the range of 1000 to 20,000.
This range is preferably in the range of 1,500 to 15,000, and more preferably in the range of 2,000 to 10,000.
When the weight average molecular weight of the polyol compound is in the range of 1000 to 20000, the polyurethane foam obtained by curing the urethane resin composition used in the present invention is excellent in soundproofness and easy to handle.
Even when the polyol compound having a molecular weight of less than 1000 is included in the polyol compound used in the present invention, the weight average molecular weight of the entire polyol compound is in the range of 1000 to 20000 by combining with the one having a large molecular weight. It is possible to

  Examples of the polyol compound include polylactone-based polyols, polycarbonate-based polyols, aromatic polyols, alicyclic polyols, aliphatic polyols, polyester-based polyols, polymer polyols, and polyether-based polyols.

Examples of the polylactone-based polyol include polypropiolactone glycol, polycaprolactone glycol, and polyvalerolactone glycol.
The polycarbonate-based polyol is obtained, for example, by a dealcoholization reaction of a hydroxyl group-containing compound such as ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, octanediol, nonanediol, etc. with diethylene carbonate, dipropylene carbonate, etc. And the like.

Examples of the aromatic polyol include bisphenol A, bisphenol F, phenol novolac, cresol novolac and the like.
Examples of the alicyclic polyol include cyclohexanediol, methylcyclohexanediol, isophoronediol, dicyclohexylmethanediol, dimethyldicyclohexylmethanediol and the like.
Examples of the aliphatic polyol include ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol and the like.
As the polyester-based polyol, for example, a polymer obtained by dehydration condensation of a polybasic acid and a polyhydric alcohol, a weight obtained by ring-opening polymerization of a lactone such as ε-caprolactone, α-methyl-ε-caprolactone and the like And coalesced products of hydroxycarboxylic acid and the above polyhydric alcohol and the like.

Here, specific examples of the polybasic acid include adipic acid, azelaic acid, sebacic acid, terephthalic acid, isophthalic acid, and succinic acid.
Specific examples of the polyhydric alcohol include bisphenol A, ethylene glycol, 1,2-propylene glycol, 1,4-butanediol, diethylene glycol, 1,6-hexane glycol, neopentyl glycol and the like. Be
Specific examples of the hydroxycarboxylic acid include castor oil and reaction products of castor oil and ethylene glycol.

  As the polymer polyol, for example, an ethylenically unsaturated compound such as acrylonitrile, styrene, methyl acrylate or methacrylate is used to the above-mentioned aromatic polyol, alicyclic polyol, aliphatic polyol, polyester-based polyol, polyether-based polyol etc. Examples thereof include graft-polymerized polymers, polybutadiene polyols, modified polyols of polyhydric alcohols, and hydrogenated products thereof.

Examples of the modified polyol of the polyhydric alcohol include those obtained by reacting an alkylene oxide with a polyhydric alcohol as a raw material to modify the polyol.
Examples of the polyhydric alcohol include trihydric alcohols such as glycerin and trimethylolpropane.
Tetra- to octa-hydric alcohols such as pentaerythritol, sorbitol, mannitol, sorbitan, diglycerin, dipentaerythritol etc., sucrose, glucose, mannose, fructose, methyl glucoside and derivatives thereof,
Phenol, phloroglucin, cresol, pyrogallol, catechol, hydroquinone, bisphenol A, bisphenol F, bisphenol S, 1-hydroxynaphthalene, 1,3,6,8-tetrahydroxynaphthalene, anthrole, 1,4,5 Phenols such as 8-tetrahydroxyanthracene and 1-hydroxypyrene;
Polybutadiene polyol,
Castor oil-based polyol,
Examples include (co) polymers of hydroxyalkyl (meth) acrylates and polyfunctional (e.g., 2 to 100 functional groups) polyols such as polyvinyl alcohol, and condensates of phenol and formaldehyde (novolaks).

Although the modification | denaturing method of the said polyhydric alcohol is not specifically limited, The method to which an alkylene oxide (it abbreviates as AO hereafter) is added is used suitably.
As the AO, AO having 2 to 6 carbon atoms, for example, ethylene oxide (hereinafter, abbreviated as EO), 1,2-propylene oxide (hereinafter, abbreviated as PO), 1,3-propylene oxide, 1, 2 -A butylene oxide, a 1, 4- butylene oxide etc. are mentioned.
Among these, from the viewpoint of properties and reactivity, PO, EO and 1,2-butylene oxide are preferable, and PO and EO are more preferable.
When two or more AOs are used (for example, PO and EO), the addition method may be block addition or random addition, or a combination of these.

As the polyether-based polyol, for example, ring-opening polymerization of at least one alkylene oxide such as ethylene oxide, propylene oxide, tetrahydrofuran or the like in the presence of at least one low-molecular weight active hydrogen compound having two or more active hydrogens. And polymers obtained by
Examples of the low molecular weight active hydrogen compound having two or more active hydrogens include diols such as bisphenol A, ethylene glycol, propylene glycol, butylene glycol, 1,6-hexanediol, and the like.
Triols such as glycerin and trimethylolpropane;
Examples thereof include amines such as ethylene diamine and butylene diamine.

  As the polyol used in the present invention, it is preferable to use a polyester-based polyol or a polyether-based polyol because the polyurethane foam obtained by curing the urethane resin composition is difficult to ignite.

Next, the compounding ratio of the main agent of the urethane resin and the curing agent will be described.
Proportion of the polyisocyanate compound which is the main component of the urethane resin and the polyol compound which is the curing agent, the ratio of the active hydrogen group (OH) of the polyol compound and water to the active isocyanate group (NCO) in the polyisocyanate compound (NCO / OH) Are usually mixed in an equivalent ratio of 0.7 to 10.0. The range is preferably in the range of 0.9 to 8.0, more preferably in the range of 0.9 to 7.0, and still more preferably in the range of 0.9 to 6.0, Most preferably, it is in the range of 0.9 to 3.0.
When the equivalent ratio is 0.7 or more, the viscosity of the urethane resin can be prevented from becoming too high, and when it is 10.0 or less, good adhesive strength can be maintained.

In the present invention, a urethane resin curing catalyst can be used in addition to the urethane resin.
Examples of the urethane curing catalyst include amino compounds, tin compounds, metal salts of acetylacetone and the like.

Examples of the amino compound include pentamethyldiethylenetriamine, triethylamine, N-methylmorpholine bis (2-dimethylaminoethyl) ether, bis (2-dimethylaminoethyl) ether, N, N, N ′, N ′ ′, N ′ ′. -Pentamethyldiethylenetriamine, N, N, N'-trimethylaminoethyl-ethanolamine, bis (2-dimethylaminoethyl) ether, N-methyl, N'-dimethylaminoethylpiperazine, secondary amine function in imidazole ring Compounds substituted with cyanoethyl group, N, N-dimethylcyclohexylamine, diazabicycloundecene, triethylenediamine, tetramethylhexamethylenediamine, N-methylimidazole, trimethylaminoethyl piperazine, triplypi Ramine,
Examples include tetramethyl ammonium salt, tetraethyl ammonium salt, triphenyl ammonium salt and the like.

  Examples of the tin compound include stannous octylate, dibutyltin diacetate, dibutyltin dilaurate and the like.

  Examples of the metal salts of acetylacetone include aluminum acetylacetone, iron acetylacetone, copper acetylacetone, zinc acetylacetone, acetylacetone beryllium, acetylacetone chromium, acetylacetone indium, acetylacetone manganese, acetylacetone molybdenum, acetylacetone titanium, acetylacetone cobalt, acetylacetone vanadium, acetylacetone zirconium and the like. Be

  The urethane resin curing catalyst may be used alone or in combination of two or more.

Although the addition amount of the urethane resin curing catalyst used for the urethane resin composition used in the present invention is not particularly limited, it is in the range of 0.01 part by weight to 10 parts by weight with respect to 100 parts by weight of the urethane resin. The content is preferably in the range of 0.01 parts by weight to 8 parts, more preferably in the range of 0.01 parts by weight to 6 parts, and still more preferably in the range of 0.01 parts by weight to 1.5 parts. Is most preferred.
In the case of 0.01 parts by weight or more and 10 parts by weight or less, handling is easy and control of the reaction becomes easy.

  As the polyurethane resin used in the present invention, those obtained by reacting and trimerizing the isocyanate group contained in the polyisocyanate compound which is the main component of the polyurethane resin and promoting the formation of the isocyanurate ring can be used.

  In order to promote the formation of an isocyanurate ring, for example, tris (dimethylaminomethyl) phenol, 2,4-bis (dimethylaminomethyl) phenol, 2,4,6-tris (dialkylaminoalkyl) hexahydro as a catalyst Aromatic compounds such as -S-triazine, alkali metal salts of carboxylic acids such as potassium acetate, potassium 2-ethylhexanoate and potassium octylate, and quaternary ammonium salts of carboxylic acids may be used.

The addition amount of the trimerization catalyst used for the fire resistant urethane resin composition according to the present invention is not particularly limited, but preferably 0.01 to 10 parts by weight with respect to 100 parts by weight of the urethane resin. The content is more preferably in the range of 0.01 parts by weight to 8 parts, still more preferably in the range of 0.01 parts by weight to 6 parts, and in the range of 0.5 parts by weight to 1.5 parts Is most preferred.
In the case of 0.01 parts by weight or more, the problem that the trimerization of isocyanate is inhibited does not occur, and in the case of 10 parts by weight or less, the problem that the formation of urethane bond is inhibited can be reduced.

  The trimerization catalyst may be used alone or in combination of two or more.

In the present invention, a foaming agent is used in addition to the urethane resin.
A foaming agent can be added to the urethane resin composition used in the present invention in order to promote the foaming of the urethane resin contained in the urethane resin composition used in the present invention.
As the foaming agent, for example, water,
Low boiling hydrocarbons such as propane, butane, pentane, hexane, heptane, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, etc.
Chlorinated aliphatic hydrocarbon compounds such as dichloroethane, propyl chloride, isopropyl chloride, butyl chloride, isobutyl chloride, pentyl chloride, isopentyl chloride, etc.
Fluorine compounds such as trichloromonofluoromethane, trichlorotrifluoroethane, etc.
Hydrofluorocarbons such as CHF ₃ , CH ₂ F ₂ , CH ₃ F, etc.
Dichloro monofluoroethane, (for example, HCFC 141b (1,1-dichloro-1-fluoroethane), HCFC 22 (chlorodifluoromethane), HCFC 142b (1-chloro-1,1-difluoroethane)), HFC-245fa (1,1 Hydrochlorofluorocarbon compounds such as 1,1,3,3-pentafluoropropane), HFC-365mfa (1,1,1,3,3-pentafluorobutane), etc.
Organic physical blowing agents such as ether compounds such as diisopropyl ether or mixtures of these compounds; inorganic physical blowing agents such as nitrogen gas, oxygen gas, argon gas, carbon dioxide gas and the like.

  The blowing agent used in the present invention is preferably pentane, hydrofluorocarbon, water or the like.

  The foaming agent used in the present invention may be used alone or in combination of two or more.

  The amount of the foaming agent added to the urethane resin composition used in the present invention is not particularly limited, but is preferably in the range of 0.1 parts by weight to 20 parts by weight with respect to 100 parts by weight of the urethane resin. The amount is more preferably in the range of 1 part by weight to 15 parts, still more preferably in the range of 1.0 part by weight to 15 parts, and most preferably in the range of 1.5 parts to 10 parts.

A foam control agent can also be used for the urethane resin composition used for this invention.
Examples of the foam stabilizer include polyoxyalkylene foam stabilizers such as polyoxyalkylene alkyl ethers, and surfactants such as silicone foam stabilizers such as organopolysiloxanes.
The use amount of the foam stabilizer with respect to the urethane resin cured by the chemical reaction is appropriately set depending on the urethane resin cured by the chemical reaction to be used, but if an example is shown, for example, 100 parts by weight of the urethane resin On the other hand, 0.01 parts by weight to 5 parts is preferable, 0.1 parts by weight to 4 parts is more preferable, and 1 parts by weight to 3 parts is further preferable.

  The catalyst and the foam stabilizer may be used alone or in combination of two or more.

Next, although the urethane resin composition used in the present invention contains a flame retardant, the flame retardant used in the present invention contains at least one of red phosphorus and a phosphoric acid-containing flame retardant, but the red phosphorus is first described. Do.
There is no limitation on the red phosphorus used in the present invention, and a commercially available product can be appropriately selected and used.

Moreover, the addition amount of red phosphorus used for the fire resistant urethane resin composition which concerns on this invention is the range of 0.1 weight part-60 weight part with respect to 100 weight part of urethane resin. The amount of red phosphorus added is preferably in the range of 0.1 to 50 parts by weight, more preferably in the range of 0.1 to 40 parts by weight, and in the range of 5 to 15 parts It is further preferred that
When the range of the red phosphorus is 0.1 parts by weight or more, the self-extinguishing property of the urethane resin composition used in the present invention is maintained, and when it is 60 parts by weight or less, the urethane resin composition used in the present invention There is no hindrance to foaming.

  The phosphoric acid used for the phosphate-containing flame retardant is not particularly limited, and various phosphoric acids such as monophosphoric acid, pyrophosphoric acid, polyphosphoric acid and the like can be mentioned.

Examples of the phosphate-containing flame retardant include salts of the various phosphoric acids and at least one metal or compound selected from metals of groups IA to IVB of the periodic table, ammonia, aliphatic amines, and aromatic amines. Can be mentioned.
Examples of the metals in Groups IA to IVB of the periodic table include lithium, sodium, calcium, barium, iron (II), iron (III), aluminum and the like.
Moreover, methylamine, ethylamine, diethylamine, a triethylamine, ethylenediamine, a piperazine etc. are mentioned as said aliphatic amine.
Moreover, a pyridine, a triazine, a melamine, ammonium etc. are mentioned as said aromatic amine.
The above-mentioned phosphate-containing flame retardant may be subjected to known water resistance improvement treatment such as treatment with a silane coupling agent or coating with a melamine resin, and a known foaming aid such as melamine or pentaerythritol is added. It is good.

  As a specific example of the said phosphate containing flame retardant, a monophosphate, a pyrophosphate, a polyphosphate etc. are mentioned, for example.

The monophosphate is not particularly limited, and examples thereof include ammonium salts such as ammonium phosphate, ammonium dihydrogen phosphate, and diammonium hydrogen phosphate;
Sodium salts such as monosodium phosphate, disodium phosphate, trisodium phosphate, monosodium phosphite, disodium phosphite, sodium hypophosphite, etc.
Potassium salts such as monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, monopotassium phosphite, dipotassium phosphite, potassium hypophosphite, etc.
Lithium salts such as monolithium phosphate, dilithium phosphate, trilithium phosphate, monolithium phosphite, dilithium phosphite, lithium hypophosphite, etc.
Barium salts such as barium dihydrogenphosphate, barium hydrogenphosphate, tribarium phosphate, barium hypophosphite, etc.
Magnesium salts such as magnesium monohydrogen phosphate, magnesium hydrogen phosphate, trimagnesium phosphate, magnesium hypophosphite, etc.
Calcium salts such as calcium dihydrogen phosphate, calcium hydrogen phosphate, tricalcium phosphate and calcium hypophosphite
Zinc salts such as zinc phosphate, zinc phosphite and zinc hypophosphite
Examples thereof include aluminum salts such as primary aluminum phosphate, secondary aluminum phosphate, tertiary aluminum phosphate, aluminum phosphite, and aluminum hypophosphite.

  The polyphosphate is not particularly limited, and examples thereof include ammonium polyphosphate, piperazine polyphosphate, melamine polyphosphate, ammonium polyphosphate amide, aluminum polyphosphate and the like.

  Among these, in order to improve the self-extinguishing properties of the phosphate-containing flame retardant, it is preferable to use a monophosphate, such as ammonium dihydrogen phosphate, diammonium hydrogen phosphate, aluminum monobasic phosphate, and phosphoric acid. It is more preferable to use at least one selected from the group consisting of monosodium and aluminum phosphate tribasic, and it is further preferable to use ammonium dihydrogenphosphate.

  The said phosphate containing flame retardant can use 1 type, or 2 or more types.

The addition amount of the phosphate-containing flame retardant used in the present invention is in the range of 0.1 parts by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin. The addition amount of the phosphate-containing flame retardant is preferably in the range of 0.1 parts by weight to 50 parts by weight, more preferably in the range of 0.1 parts by weight to 40 parts by weight, and more preferably 2 parts by weight More preferably, it is in the range of 10 parts by weight.
When the range of the monophosphate-containing flame retardant is 0.1 parts by weight or more, the self-extinguishing property of the urethane resin composition used in the present invention is maintained, and when it is 60 parts by weight or less, it is used in the present invention The foaming of the urethane resin composition is not inhibited.

  In addition to the red phosphorus and phosphate containing flame retardant described above as the flame retardant, the urethane resin composition used in the present invention is a phosphate ester, a bromine containing flame retardant, a boron containing flame retardant and an antimony containing flame retardant At least one selected from the group consisting of can be used.

  Although there is no limitation in particular as said phosphate ester, It is preferable to use monophosphate ester, condensation phosphate ester, etc.

  The monophosphate ester is not particularly limited. For example, trimethyl phosphate, triethyl phosphate, tributyl phosphate, tri (2-ethylhexyl) phosphate, tributoxyethyl phosphate, triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate , Tris (isopropylphenyl) phosphate, tris (phenylphenyl) phosphate, trinaphthyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate, diphenyl (2-ethylhexyl) phosphate, di (isopropylphenyl) phenyl phosphate, monoisodecyl phosphate , 2-acryloyloxyethyl acid phosphate, 2-methacryloyloxyethyl acetate Phosphate, diphenyl-2-acryloyloxyethyl phosphate, diphenyl-2-methacryloyloxyethyl phosphate, melamine phosphate, dimelamine phosphate, melamine pyrophosphate, triphenylphosphine oxide, tricresyl phosphine oxide, diphenyl methanephosphonate, phenylphosphonic acid Examples include diethyl, resinyl bis (diphenyl phosphate), bisphenol A bis (diphenyl phosphate), phosphaphenanthrene, tris (β-chloropropyl) phosphate and the like.

The condensed phosphoric acid ester is not particularly limited. For example, trialkyl polyphosphate, resorcinol polyphenyl phosphate, resorcinol poly (di-2,6-xylyl) phosphate (manufactured by Daihachi Chemical Industry Co., Ltd., trade name PX-) 200), hydroquinone poly (2,6-xylyl) phosphate and condensed phosphoric acid esters such as condensates thereof.
Examples of commercially available condensed phosphoric acid esters include resorcinol polyphenyl phosphate (trade name CR-733S), bisphenol A polycresyl phosphate (trade name CR-741), aromatic condensed phosphate ester (trade name CR747), resorcinol Polyphenyl phosphate (made by ADEKA, trade name Adekastab PFR), bisphenol A polycresyl phosphate (trade name FP-600, FP-700) etc. can be mentioned.

  Among the above, it is preferable to use a monophosphate because the effect of decreasing the viscosity in the composition before curing and the effect of reducing the initial calorific value are high, and tris (β-chloropropyl) phosphate is used. Is more preferred.

  The said phosphoric acid ester can use 1 type, or 2 or more types.

The amount of phosphate ester used in the present invention is in the range of 0.1 parts by weight to 200 parts by weight with respect to 100 parts by weight of the urethane resin. The addition amount of the phosphate ester is preferably in the range of 0.1 parts by weight to 100 parts by weight, more preferably in the range of 0.1 parts by weight to 50 parts by weight, and more preferably in the range of 5 parts to 15 parts. Is more preferable.
When the range of the phosphoric acid ester is 0.1 parts by weight or more, a molded article made of the urethane resin composition used in the present invention becomes difficult to ignite, and when it is 200 parts by weight or less, the urethane used in the present invention Foaming of the resin composition is not inhibited.

Moreover, as said bromine containing flame retardant, if it is a compound which contains bromine in molecular structure, there will be no limitation in particular, For example, an aromatic brominated compound etc. can be mentioned.
Specific examples of the aromatic brominated compound include, for example, hexabromobenzene, pentabromotoluene, hexabromobiphenyl, decabromobiphenyl, hexabromocyclodecane, decabromodiphenyl ether, octabromodiphenyl ether, hexabromodiphenyl ether, bis (pentabromo diphenyl ether) Monomeric organic bromine compounds such as bromophenoxy) ethane, ethylene-bis (tetrabromophthalimide), tetrabromobisphenol A, etc.
Polycarbonate oligomers produced from brominated bisphenol A as a raw material, brominated polycarbonates such as copolymers of the polycarbonate oligomers and bisphenol A,
Brominated epoxy compounds such as diepoxy compounds produced by the reaction of brominated bisphenol A with epichlorohydrin, and monoepoxy compounds obtained by the reaction of brominated phenols with epichlorohydrin,
Poly (brominated benzyl acrylate),
Brominated polyphenylene ether,
Brominated bisphenol A, cyanuric chloride and condensate of brominated phenol,
Brominated polystyrene, such as brominated (polystyrene), poly (brominated styrene), cross-linked brominated polystyrene, etc.
And halogenated bromine compound polymers such as crosslinked or non-crosslinked brominated poly (-methylstyrene).
From the viewpoint of enhancing the self-extinguishing property of the urethane resin composition used in the present invention, a brominated aromatic ring-containing aromatic compound in which a bromine atom is substituted on the aromatic ring is preferable, and brominated polystyrene, hexabromobenzene and the like are more preferable, Hexabromobenzene is more preferred.

  The said bromine containing flame retardant can use 1 type, or 2 or more types.

Although the addition amount of the bromine-containing flame retardant used in the present invention is not particularly limited, it is preferably in the range of 0.1 part by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin. It is more preferably in the range of 50 to 50 parts by weight, still more preferably in the range of 0.1 to 40 parts by weight, and most preferably in the range of 2 to 5 parts.
When the range of the bromine-containing flame retardant is 0.1 parts by weight or more, the self-extinguishing property of the urethane resin composition used in the present invention is maintained, and when 60 parts by weight or less, the urethane used in the present invention Foaming of the resin composition is not inhibited.

The boron-containing flame retardant used in the present invention includes borax, boron oxide, boric acid, borate and the like.
Examples of the boron oxide include diboron trioxide, boron trioxide, diboron dioxide, tetraboron trioxide, tetraboron pentoxide and the like.
Examples of the borate include alkali metals, alkaline earth metals, borates of elements of Groups 4, 12 and 13 of the periodic table, and ammonium.
Specifically, alkali metal salts of borates such as lithium borate, sodium borate, potassium borate and cesium borate, alkaline earth metal borates such as magnesium borate, calcium borate and barium borate, and borates Examples include zirconium acid, zinc borate, aluminum borate, ammonium borate and the like.

  The boron-containing flame retardant used in the present invention is preferably a borate, and more preferably zinc borate.

  The boron-containing flame retardant may be used alone or in combination of two or more.

The addition amount of the boron-containing flame retardant used in the present invention is in the range of 0.1 parts by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin. The addition amount of the boron-containing flame retardant is preferably in the range of 0.1 parts by weight to 50 parts by weight, more preferably in the range of 0.1 parts by weight to 40 parts by weight, and 1 part to 10 parts More preferably, it is in the range.
When the range of the boron-containing flame retardant is 0.1 parts by weight or more, the self-extinguishing property of the urethane resin composition used in the present invention is maintained, and when it is 60 parts by weight or less, the urethane used in the present invention Foaming of the resin composition is not inhibited.

Moreover, as said antimony containing flame retardant, an antimony oxide, an antimonate, a pyroantimonate etc. are mentioned, for example.
Examples of the antimony oxide include antimony trioxide and antimony pentoxide.
Examples of the antimonate salt include sodium antimonate, potassium antimonate and the like.
Examples of the pyroantimonate include sodium pyroantimonate, potassium pyroantimonate and the like.

  The antimony-containing flame retardant used in the present invention is preferably antimony trioxide.

  The antimony-containing flame retardant may be used alone or in combination of two or more.

Although the addition amount of the antimony-containing flame retardant is not particularly limited, it is preferably in the range of 0.1 part by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin. Is more preferably in the range of 0.1 parts by weight to 40 parts by weight, and most preferably in the range of 1 part to 10 parts.
When the range of the antimony-containing flame retardant is 0.1 parts by weight or more, the self-extinguishing property of the urethane resin composition used in the present invention is maintained, and when 60 parts by weight or less, the urethane used in the present invention Foaming of the resin composition is not inhibited.

Moreover, the urethane resin composition used for this invention can use an inorganic filler.
The inorganic filler is not particularly limited, and examples thereof include silica, diatomaceous earth, alumina, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, magnesium hydroxide, Aluminum hydroxide, basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dawsonite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, potassium salts such as calcium silicate, talc, clay, mica, Montmorillonite, bentonite, activated clay, sebiolite, imogolite, sericite, glass fiber, glass beads, silica based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder Various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel, stainless steel, zinc borate, various magnetic powders, slag fibers, fly ash, inorganic phosphorus compounds, silica alumina Fibers, alumina fibers, silica fibers, zirconia fibers and the like can be mentioned.

  The inorganic filler may be used alone or in combination of two or more.

  Furthermore, the urethane resin composition used in the present invention may, if necessary, be a phenol type, amine type or sulfur type antioxidant, heat stabilizer or metal damage inhibitor, as long as the object of the present invention is not impaired. And additives such as antistatic agents, stabilizers, crosslinking agents, lubricants, softeners, pigments, tackifying resins, and tackifiers such as polybutene and petroleum resins.

Since the urethane resin composition used in the present invention reacts and cures, its viscosity changes with the passage of time.
So, before using the urethane resin composition used for this invention, the said urethane resin composition is divided into two or more, and it prevents that the said urethane resin composition reacts and hardens | cures. And when using the urethane resin composition used for this invention, the urethane resin composition used for this invention is obtained by putting together the said urethane resin composition divided into two or more into one.
When the urethane resin composition is divided into two or more, each component of the urethane resin composition divided into two or more does not start to be cured, and the components of the urethane resin composition are mixed and then cured. Each component may be divided so that the reaction starts.

Next, the manufacturing method of the said urethane resin composition is demonstrated.
The method for producing the urethane resin composition is not particularly limited, but, for example, a method of mixing each component of the urethane resin composition, suspending the urethane resin composition in an organic solvent or heating and melting it Or a method of preparing a slurry by dispersing it in a solvent, or when the reaction curable resin component contained in the urethane resin composition contains a component which is solid at a temperature of 25 ° C. In addition, the urethane resin composition can be obtained by a method such as melting the urethane resin composition under heating.

Alternatively, the main component of the urethane resin and the curing agent may be separately kneaded together with the filler and the like, and may be obtained by kneading using a static mixer, a dynamic mixer or the like immediately before injection.
Furthermore, the component of the said urethane-resin composition except a catalyst, and a catalyst can also be similarly knead | mixed and obtained immediately before injection | pouring.

  The urethane resin composition according to the present invention can be obtained by the method described above.

Next, a method of curing the urethane resin composition according to the present invention will be described.
When the respective components of the urethane resin composition are mixed, a reaction starts, the viscosity increases with the passage of time, and the fluidity is lost.
For example, a molded article made of the urethane resin composition can be obtained by injecting the urethane resin composition into a container such as a mold and a frame material and curing the composition.
When obtaining the molded object which consists of said urethane resin composition, heat can be added or a pressure can be applied.
The specific gravity of the molded article made of the urethane resin composition is not particularly limited, but is preferably in the range of 0.02 to 0.20, more preferably in the range of 0.03 to 0.15, and 0 The range of .03 to 0.10 is more preferable, and the range of 0.04 to 0.08 is most preferable.
Such molded articles are easy to handle because of their low specific gravity.

The fireproof soundproofing layer obtained by curing the urethane resin composition used in the present invention is made of polyurethane foam and has air bubbles inside.
It is preferable that the cells are not independent cells in the polyurethane foam but are open cells in which the cells are connected to each other.
The polyurethane foam has excellent soundproofness but is difficult to ignite.

  The present invention will be explained in detail by the following examples. The present invention is not limited at all by the following examples.

  According to the composition shown in Table 1, the urethane resin composition according to Reference Example 1 was divided into three components (A) to (C) and prepared. The details of each component shown in Table 1 are as follows.

Component (A): Polyol compound (hereinafter referred to as "polyol compound")
(A) Polyol compound polyether polyol (manufactured by Sanyo Chemical Industries, Ltd., product name: Sannix GP-3000, hydroxyl value: 56 mg KOH / g, functional group number: 3 [per molecule])
(B) Catalyst B-1: triethylenediamine (manufactured by Tosoh Corporation, product name: TEDA-L33)
B-2: stannous octoate (manufactured by Nitto Kasei, product name: Neostan U-28)
B-3: Bis (2-dimethylaminoethyl) ether 70% dipropylene glycol solution (Momentive Performance Materials, product name: NIAX CATALYST A-1)
B-4: trimerization catalyst (manufactured by Tosoh Corporation, product name: TOYOCAT-TR20)
(C) Foaming agent water (pure water)
HFC-365mfa (1,1,1,3,3-pentafluorobutane, manufactured by Central Glass Co., Ltd.)
HFC-245fa (1,1,1,3,3-pentafluoropropane, manufactured by Japan Solvay)
Mixing ratio HFC-365mfa: HFC-245fa = 7: 3 (hereinafter referred to as "HFC")
(D) Foam control agent C-1: Silicone based foam control agent (manufactured by Toray Dow Corning, product name: SH192)
C-2: Silicone-based foam stabilizer (Momentive Performance Materials Co., Ltd. product name: NIAX CATALYST L-580)

Component (B): isocyanate (hereinafter referred to as "polyisocyanate")
D-1: TDI (manufactured by Nippon Polyurethane Industry Co., Ltd., product name: Coronate T-80) Isocyanate content 48.2%
D-2: MDI (manufactured by Nippon Polyurethane Industry Co., Ltd., product name: Millionate MR-200)
Viscosity: 167 mPa · s, isocyanate content 30.5 to 32.0%

(C) Component: Flame Retardant E-1: Tris (β-chloropropyl) phosphate (manufactured by Daihachi Chemical Co., Ltd., Product Name: TMCPP)
E-2: Red phosphorus (product of phosphorus chemical industry, product name: Nova Excel 140)
E-3: Ammonium dihydrogen phosphate (manufactured by Kanto Chemical Co., product code: 01309-01)
E-4: Hexabromobenzene (Manuc Co., Ltd., product name: HBB-B)

Next, according to the composition in Table 1 below, components (A) and (C) are weighed into a 1000 ml polypropylene beaker, using a three-one motor (product name: BLW1200, manufactured by HEIDON), 2 under conditions of 25 ° C. and 400 rpm. Stir for a minute.
A foam control agent and a foaming agent were added to the components (A) and (C) after stirring, and the mixture was stirred for about 10 seconds at 1200C at 25 ° C. using a three-one motor to produce a foam.
The obtained urethane resin composition lost its fluidity with the passage of time, and a cured product of the urethane resin composition was obtained. The cured product was evaluated according to the following criteria, and the results are shown in Table 1.
The index of the polyisocyanate used in Reference Example 1 (the number of moles of isocyanate groups divided by the total number of moles of isocyanate-reactive active hydrogen groups multiplied by 100) is shown in Table 1. The same applies to the following reference examples.

[Measurement of ignitability]
A test sample was cut out of the cured urethane resin composition so as to be 125 mm × 13 mm × 10 mm, and a combustion test was performed according to UL94 of the UL standard. Five test pieces were burned at a time, and the combustion performance was judged from the average combustion time.
The case corresponding to V-0 is ◎, the case corresponding to V-1 is ○, the case corresponding to V-2 is Δ, and the case inferior to V-2 is x, and the results are shown in Table 1 It was shown to.
The change in weight before and after the ignition test was also evaluated as a percentage (%). The results are shown in Table 1.

The fire protection and sound insulation panel 200 according to the first embodiment can be obtained by the same procedure as the fire protection and sound insulation panel according to the second embodiment described above.
The fireproof sound insulation layer used for the fire prevention and sound insulation panel 200 which concerns on Example 1 can be obtained even if it uses the urethane resin composition containing any flame retardant of the reference examples 1-10 demonstrated previously.
The resulting fireproof and soundproof panel 200 is excellent in soundproofness and fire resistance.

  The fireproof soundproofing layer obtained by the urethane resin composition used in the present invention is very difficult to ignite and can exhibit excellent fire resistance.

Compared to the case of Example 1, the procedure was carried out except that the polyol compound was reduced from 54.2 parts by weight to 38.4 parts by weight, and the polyisocyanate was increased from 45.8 parts by weight to 61.6 parts by weight. The experiment was carried out in exactly the same manner as in Example 1.
The results are shown in Table 1.

In the same manner as in Example 1, except that 7.0 parts by weight of the flame retardant E-1 and 3.0 parts by weight of the flame retardant E-4 were added and used in comparison with the case of Example 1. I did an experiment.
The results are shown in Table 1.

Compared with the case of Example 2, 0.7 parts by weight of catalyst B-4 was used, 7.0 parts by weight of flame retardant E-1 and 3.0 parts by weight of flame retardant E-4 were added The experiment was conducted in exactly the same manner as in Example 2 except that it was used.
The results are shown in Table 1.

Comparative Example 1
The experiment was conducted in exactly the same manner as in Example 1 except that no flame retardant was used as compared with the case of Example 1.
The results are shown in Table 1.

Comparative Example 2
Compared with the case of Comparative Example 1, the polyol compound was increased from 54.2 parts by weight to 62.5 parts by weight, and instead of the polyisocyanate D-2, 37.5 parts by weight of the polyisocyanate D-1 was used The experiment was conducted in exactly the same manner as in Comparative Example 1 except for the above.
The results are shown in Table 1.

Comparative Example 3
Compared with the case of Comparative Example 2, 7.0 parts by weight of the flame retardant E-1, 6.0 parts by weight of E-2, 3.0 parts by weight of E-3 and 3.0 parts by weight of E-4 The experiment was conducted in exactly the same manner as in Comparative Example 2 except that part was used.
The results are shown in Table 1.

  Since the molded article of the urethane resin composition used in the present invention is excellent in soundproofness and fire resistance, the fireproof and soundproof panel of the present invention can be widely applied to uses such as buildings where fireproofness and fire resistance are required. .

DESCRIPTION OF SYMBOLS 1 Exterior material 2 Formwork 3 Urethane resin composition 20 Frame material 30 Opening part 40 Space 50 Heat insulation layer 100, 110 Fireproof sound insulation panel

Claims (9)

It is a fireproof soundproof panel formed by laminating a fireproof soundproof layer formed by molding a urethane resin composition containing a flame retardant and an exterior material,
The urethane resin composition containing the flame retardant contains a urethane resin,
The weight average molecular weight of the polyol compound contained in the urethane resin is in the range of 1,000 to 20,000,
The flame retardant is at least one of red phosphorus and a phosphate containing flame retardant,
At least one of the red phosphorus- and phosphate-containing flame retardants is in the range of 0.1 parts by weight to 60 parts by weight with respect to 100 parts by weight of the urethane resin.
Fireproof soundproof panel.   The method according to claim 1, wherein the flame retardant comprises at least one selected from the group consisting of phosphoric ester, bromine containing flame retardant, boron containing flame retardant and antimony containing flame retardant in addition to red phosphorus and phosphate containing flame retardant. The fire prevention soundproof panel as described in 1.   At least one selected from the group consisting of phosphoric ester, bromine-containing flame retardant, boron-containing flame retardant and antimony-containing flame retardant contained in the flame retardant is 0.1 parts by weight to 100 parts by weight of the urethane resin, respectively A fire protection panel as claimed in claim 2 in the range of 60 parts by weight. The urethane resin composition containing the flame retardant includes a trimerization catalyst that promotes trimerization reaction of isocyanate groups contained in the urethane resin,
The fireproofing panel according to any one of claims 1 to 3, wherein the trimerization catalyst is in the range of 0.01 parts by weight to 10 parts by weight with respect to 100 parts by weight of the urethane resin.   The fireproof sound insulation panel in any one of Claims 1-4 in which the urethane resin composition containing the said flame retardant contains at least one of a foam stabilizer and a foaming agent.   The fireproof soundproof panel according to any one of claims 1 to 5, wherein the fireproof soundproof layer is disposed between two facing exterior materials.   The fireproof soundproof panel according to any one of claims 1 to 6, wherein a heat insulation layer is added in addition to the fireproof soundproof layer.   The fireproofing panel according to any one of claims 1 to 7, wherein a frame material is installed on the outer periphery of the two facing exterior materials.   The fireproofing panel according to any one of claims 1 to 8, wherein the covering material is at least one selected from the group consisting of an organic material, an inorganic material and a metal material.