WO2006016416A1 - Panneau de fibres de densite moyenne ininflammable et son procede de production - Google Patents

Panneau de fibres de densite moyenne ininflammable et son procede de production Download PDF

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Publication number
WO2006016416A1
WO2006016416A1 PCT/JP2004/011733 JP2004011733W WO2006016416A1 WO 2006016416 A1 WO2006016416 A1 WO 2006016416A1 JP 2004011733 W JP2004011733 W JP 2004011733W WO 2006016416 A1 WO2006016416 A1 WO 2006016416A1
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Prior art keywords
mdf
weight
nonflammable
parts
coating agent
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Ceased
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PCT/JP2004/011733
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English (en)
Inventor
Yoshio Ichikawa
Proksch Victor Peter
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MDF FR SOLUTIONS Pty Ltd
Nippan Kenkyusho KK
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MDF FR SOLUTIONS Pty Ltd
Nippan Kenkyusho KK
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Priority to PCT/JP2004/011733 priority Critical patent/WO2006016416A1/fr
Publication of WO2006016416A1 publication Critical patent/WO2006016416A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N9/00—Arrangements for fireproofing

Definitions

  • the present invention relates to a nonflammable MDF (medium-density fiber board) and a method for producing the same.
  • the present invention relates to a nonflammable MDF in which an air-permeable inorganic coating film having a thickness of 0.2 to 2 mm is formed on a surface of an MDF obtained by adding a fire retardant, as well as wood fiber and an adhesive, and forming by hot pressing, which is nonflammable, excellent in heat insulating properties, weather resistance, sound absorption, moisture conditioning properties, bending strength, hardness and processability, and usable as a light-weight nonflammable, fire protection structural, heat insulating and sound absorbing materials; and a method for producing the same.
  • the present invention has been made against the background of the prior art as described above, and an object of the present invention is to provide a nonflammable MDF enhanced in nonflammability, heat resistance, weather resistance and sound absorption of the MDF, and also excellent in moisture conditioning properties and soil resistance without impairing the original performances of the MDF such as bending strength, hardness, lightness in weight and processability; and a method for producing the same.
  • the present invention relates to an nonflammable MDF characterized in that an air-permeable film having a thickness of 0.2 to 2 mm is formed using an inorganic coating agent on a surface of an MDF obtained by adding a fire retardant, as well as wood fiber and an adhesive, and forming by hot pressing.
  • the adhesive as used herein is preferably at least one thermosetting resin selected from the group consisting of a urea resin, a melamine resin, a phenol resin, an isocyanate resin, an epoxy resin and a polyester resin.
  • the fire retardant is preferably at least one selected from the group consisting of a borate, a phosphate, a silicate, an ammonium salt, a metal hydroxide and other acids and bases.
  • the inorganic filler contained in the inorganic coating agent is preferably at least two selected from the group consisting of a metal oxide, a metal hydroxide, a metal nitride, a metal carbide, a metal carbonate and a silicate having an average particle size or an average length of 0.3 to 200 ⁇ m and insoluble in water.
  • the hardener contained in the inorganic coating agent is preferably at least one selected fromthe group consisting of a zinc compound, a magnesium compound, a calcium compound, a phosphate and a mineral acid.
  • the present invention relates to a method for producing a nonflammable MDF comprising applying the above-mentioned inorganic coating agent onto an MDF subjected _
  • the nonflammable MDF of the present invention is excellent in fire resistance and heat reflecting properties, as well as in nonflammability, high in mechanical strength, and has high weather resistance, so that it can be used as a fire protection structural material. Further, in the heat insulating effect by the synergistic effect of the original heat insulating properties of the MDF and the heat insulating properties of the inorganic coating film, the nonflammable MDF having a thickness of 20 mm is comparable to a conventional heat insulating material having a thickness of 60 mm.
  • the nonflammable MDF which forms the interior material having a high energy-saving effect can be provided, because it is excellent in heat radiation properties and dropwise condensation prevention (drying properties) , as well as in nonflammability, in addition to heat insulating properties.
  • Fig. 1 is a view for illustrating a state in which a test piece E is put between stainless steel plates, both ends of which are fixed with rod screws (Example 2). .
  • Fig. 2 is a view for illustrating a method for heating the test piece of Fig. 1 by using a gas burner (Example 2).
  • MDF used in the present invention can be produced by known methods.
  • the MDF is formed by adding an adhesive and a fire retardant to wood fiber obtained by fibrillating wood chips, drying the resulting mixture, then, forming a mat with a dry sheet making apparatus (air filter) , and hot pressing the mat.
  • the amount of the wood fiber used which constitutes the MDF herein is from 67 to 72% by weight, and preferably about 70% by weight, based on the whole, taking the water content as 6%.
  • the above-mentioned adhesive is at least one of thermosetting resins such as a urea resin, a melamine resin, a phenol resin, an isocyanate resin, an epoxy resin and a .
  • polyester resin Although a melamine-urea mixed resin is frequently used, an alkaliphenol or isocyanate resin which releases a smaller amount of formaldehyde has recently been increasing. However, some of the melamine-urea mixed resin is reduced in formaldehyde release with a fire retardant, and a catcher agent is used in some cases.
  • the catcher agent as used herein is an adsorption decomposer, for example, silver zeolite or copper zeolite.
  • the amount of the above-mentioned adhesive used is usually from 12 to 24% by weight, and preferably from 14 to 20% by weight, based on the whole. Less than 12% by weight results in weakened strength or decomposition, whereas exceeding 24% by weight unfavorably results in no air permeability, deteriorated heat insulating properties or a failure to obtain nonflammability.
  • the fire retardant is at least one selected from the group consisting of a borate, a phosphate, a silicate, an ammonium salt, and a metal hydroxide.
  • the effect of these fire retardants is that the fire retardants themselves melt by heat to form coating films, thereby insulating materials from flames, for the borate, borax and the silicate, that nonflammable gases such as CO2, NH3, SO 2 and SO 3 are generated by decomposition by heat to weaken combustibility, for the ammonium salt, and that dehydration and carbonization are accelerated by heat to give no time for burning, for the phosphate and the other acids and bases.
  • the above-mentioned fire retardant is ordinarily used as a combination of two or more of them in an amount of 7 to 20% byweight, and preferably in an amount of 9 to 14% byweight, based on the whole. Less than 7% by weight results in insufficient nonflammability, whereas exceeding 20% by weight unfavorably results in poor adhesion.
  • additives such as a wax, a preservative, a fungicide, an ant-preventing agent, a waterproof agent, a colorant and a deodorant can be added to the above-mentioned MDF.
  • the MDF used in the present invention is formed, for example, by fibrillating wood chips or another plant fiber, adding thereto an adhesive and a fire retardant, and other additives as needed, drying the resulting mixture, then, forming a mat, rapidly applying a pressure of 60 to 80 kg/cm 2 for several seconds at a first step, and pressing at 20 to 40 kg/cm 2 for 1 to 3 minutes at a second step.
  • the hot plate temperature is from 200 to 260 0 C, but the forming process is not limited to the above-mentioned technique.
  • the MDF made nonflammable of the present invention is one obtained by forming an air-permeable inorganic coating film having a thickness of 0.2 to 2 mm on a surface of the MDF formed by hot pressing as described above, using an inorganic coating agent.
  • the quaternary ammonium silicate is one containing 15 to 45% by weight of a SiO 2 component, used as a main binder in the inorganic coating agent of the present invention, and represented by the following general formula:
  • R 3 N (R 3 N) 2 ⁇ nSiO 2 (wherein R is an alkyl group having 1 or more carbon atoms, and n is an integer of 1 or more.)
  • This quaternary ammonium silicate has alkalinity, and reacts with (c) the hardener to strongly adhere to the MDF which is a substrate, as the following formulas (1) and (2), thereby imparting fire resistance, heat resistance, water resistance, weather resistance, hydrophilicity and air _
  • the quaternary ammonium silicates include liquid silicates such as dimethyl- ethanolammonium silicate, monomethyltripropanolammonium silicate, dimethyldipropanolammonium silicate and monoethyl- tripropanolammonium silicate, (a) These quaternary ammonium silicates are easily obtained by (1) a method of adding a quaternary ammonium hydroxide to an active silica solution obtained by bringing diluted sodium silicate into contact with a hydrogen type cation-exchange resin, and carrying out condensation to a specified concentration, (2) a method of reacting a quaternary ammonium hydroxide and silica hydrosol with each other, or the like.
  • the quaternary ammonium hydroxide used herein is usually obtained by a method of adding an alkylene oxide to ammonia or an amine, amethod of deionizing a quaternary amine salt with an anion-exchange resin, or the like.
  • a product containing a tertiary, secondary or primary amine in small amounts is also usable, and a quaternary ammonium silicate obtained using it is also usable as the coating agent used in the present invention.
  • quaternary ammonium silicate within the range of 15 to 45% by weight, preferably within the range of 20 to 30% by weight. Less than 15% by weight results in the excessive necessary amount of component (a) , or an increase inwater to delay drying, whereas exceeding 45% by weight unfavorably results in conversely a decrease in adhesion force or development of cracks.
  • quaternary ammonium silicates can be used either alone or as a combination of two or more of them.
  • the content of component (a) in the inorganic coating agent used in the present invention is from 4 to 12 parts by weight, and preferably from 5 to 8 parts by weight, in terms of a SiO 2 basis, based on 100 parts by weight of the total of components (a) to (d). Less than 4 parts by weight results in lack of bonding force orhardness, whereas exceeding 12 parts by weight unfavorably results in powdering or development of cracks. When used as an aqueous solution, it is from 20 to 30 parts by weight (from 4 to 12 parts by weight, in terms of a SiO 2 basis, based on 100 parts by weight of the total of components (a) to (d)). _
  • composition of the coating film of the inorganic coating agent of the present invention is the same as that of the inorganic coating agent used in the method for producing the inorganic coating agent of the present invention, from which solvent (d) is removed. Accordingly, taking the total of components (a) to (c) of the present invention as 100 parts by weight, the content of each of components (a) to (c) naturally amounts to a value similar to the content of each of the above-mentioned component (a) and the following components (b) and (c), taking the total of components (a) to (d) in the inorganic coating agent as 100 parts by weight.
  • the inorganic filler is used in the inorganic coating agent for the purpose of preparing a coating film having good fire resistance, heat insulating properties, high heat resistance, heat reflecting properties, air permeability and the like, and further imparts coloration, decorating properties, highweather resistance and the like to the coating film.
  • the inorganic fillers is at least two selected from the group consisting of a metal oxide, a metal hydroxide, a metal nitride, a metal carbide, a metal carbonate, and a silicate having an average particle size or an average length of 0.3 to 200 ⁇ m and insoluble in water. Specifically, they are at least two selected from the group consisting of zinc oxide, aluminum oxide, silicon dioxide, titanium oxide, _
  • the shape of (b) the above-mentioned inorganic filler is preferably granular, acicular, fibrous or scaly, and they may be mixed.
  • the average particle size of component (b) is from 0.3 to 200 ⁇ m, and preferably from 1 to 100 ⁇ m. Less than 0.3 ⁇ m results in a failure to obtain a necessary film thickness, a failure to exhibit the functions of component (b) or increased production cost. On the other hand, exceeding 200 ⁇ m unfavorably results in loss of smoothness of the coating film and decrease in adhesion force.
  • the above-mentioned average particle size is interpreted as the average value of the maximum length of the unit shape, when the shape of component (b) is acicular, fibrous or scaly.
  • the content of component (b) in the inorganic coating agent used in the present invention is from 45 to 75 parts by weight, and preferably from 55 to 60 parts by weight, based on 100 parts by weight of the total of components (a) to (d) . Less than 45 parts by weight results in the difficulty of expressing the desired performance, or lack of moisture retention or coloration. On the other hand, exceeding 75 parts by weight unfavorably .
  • Hardener (c) Hardener; (c) The hardener reacts with (a) the above-mentioned quaternary ammonium silicate in a short period of time to form the strong coating film excellent in water resistance, and has the effect of further improving fire resistance, heat resistance, weather resistance and air permeability of the resulting coating film.
  • Component (c) is at least one selected from the group consisting of a zinc compound, a magnesium compound, a calcium compound, a phosphate and a mineral acid. Specifically, it is magnesium oxide, calcium oxide, zinc hydroxide, magnesium hydroxide, calcium hydroxide, phosphoric acid, aluminum orthophosphate, boric acid or the like.
  • the above-mentioned components (c) may be used either alone or as a combination of two or more of them.
  • the average particle size of component (c) is from 0.1 to 20 ⁇ m, and preferably from 0.5 to 10 ⁇ m. Less than 0.1 ⁇ m results in too rapid reactionwith component (a) or an increase in viscosity, whereas exceeding 20 ⁇ m unfavorably results in loss of stability of the inorganic coating agent or loss of smoothness of the coating film.
  • the content of component (c) in the inorganic coating agent used in the present invention is from 2 to 12 parts by weight, and preferably from 4 to 8 parts by weight, based on 100 parts by weight of the total of components (a) to (d). Less than 2 parts by weight results in too slow or insufficient reaction with component (a). On the other hand, exceeding 12 parts by weight unfavorably results in too rapid reaction with component (a) or development of cracks in the coating film.
  • the water and/or the hydrophobic organic solvent has the effects of adjusting viscosity of the inorganic coating agent, controlling the drying time and working time, and controlling dispersion of (b) the filler.
  • the water of component (d) there can be used service water, distilledwater or ion-exchanged water. Further, the water also involves water contained in the silicate of the above-mentioned component (a), water contained in an emulsion type or water-soluble type synthetic resin used as an additive, and the like.
  • the hydrophilic organic solvent of component (d) is an organic solvent compatible with water, and used as an agent for adjusting the solid concentration and viscosity of the inorganic coating agent, a drying speed adjusting agent or an antifreezing agent.
  • the above-mentioned hydrophilic organic solvents include an alcohol, a glycol and the like.
  • the alcohols include aliphatic alcohols having 1 to 8 carbon atoms, for example, methanol, ethanol, n-propanol, i-propanol, n-butanol, sec-butanol, t-butanol, methyl- _
  • glycols include, for example, ethylene glycol, propylene glycol, diethylene glycol and the like.
  • the above-mentioned solvents may be used either alone or as a combination of two or more of them.
  • hydrophilic organic solvents i-propanol, methylcarbitol and ethylene glycol are used either alone or as a mixed solvent of two or more of them.
  • the content of component (d) in the inorganic coating agent used in the present invention is from 15 to 40 parts by weight, and preferably from 20 to 30 parts by weight, based on 100 parts by weight of the total of components (a) to (d).
  • the content is less than 15 parts by weight, the viscosity of the inorganic coating agent excessively increases, resulting in a decrease in storage stability, or deterioration of the dispersibility of components (a) to (c) in some cases.
  • it exceeds 40 parts by weight other components relatively decrease, resulting in a decrease in adhesion force of the resulting coating film, or the coating film too thin to prepare a desired one in some cases, although the storage stability is improved.
  • components (a) to (d) are mixed, and dispersing agents such as various surfactants, hardening adjusting agents, antibacterial agents, synthetic resin emulsions, synthetic rubber emulsion, organic dyes and pigments, and other additives can be further contained as needed.
  • dispersing agents such as various surfactants, hardening adjusting agents, antibacterial agents, synthetic resin emulsions, synthetic rubber emulsion, organic dyes and pigments, and other additives can be further contained as needed.
  • the use of the synthetic resin and/or synthetic rubber emulsions as the above-mentioned additives can impart flexibility to the coating film, enhance adhesion force, and controlwater permeability of the coating film.
  • the above-mentioned emulsions include emulsions of an acrylic resin, a vinyl acetate resin, a silicone resin, an acrylonitrile-butadiene rubber, polybutadiene, a styrene-- butadiene rubber and the like.
  • the above-mentioned synthetic resins and/or synthetic rubbers may be used not only as emulsions, but also as aqueous solutions.
  • resin and rubber components are well mixed with (d) the water and/or hydrophilic organic solvent, and form a water-insoluble transparent or translucent film when dried.
  • inorganic coating agent of the present invention they can be used as an auxiliary agent for adhering (b) the filler, and further for improving impact resistance.
  • components (a) to (c) are mixed, and component (d) and other additive components are blended as needed, thereby being able to adjust the total solid concentration to 60 to
  • the above-mentioned inorganic coating agent can be obtained as a homogeneous dispersion with an ordinary stirrer, a butterfly mixer for high viscosity or another disperser, or by mesh filtering.
  • the inorganic coating agent used in the present invention is aqueous and easy to be handled, and is hardened for a short period of time even at ordinary temperature after coating. It is therefore excellent in functionality.
  • the MDF is applied to the MDF, and dried by heating at 60 to 100 0 C, preferably 70 to 80 0 C for 5 to 20 minutes, preferably for 10 to 15minutes, or driedat ordinary temperature for 3 to 6 hours, preferably for about 4 to 5 hours, thereby hardening it to be able to form an air-permeable coating film having a thickness of 0.2 to 2 mm, preferably 0.5 to 1.2 mm.
  • coating means such as abrush coating, spray coating, roll coating and flow coating can be used.
  • the coating film obtained by the inorganic coating agent used in the present invention is air-permeable, so that it can usually be finishedby one application in coating without giving attention to pinholes as previously applied. However, it can also be applied twice or more.
  • the amount of the inorganic coating agent applied to the surface of the MDF herein is from 300 to 2,000 g/m 2 , and preferably from 600 to 1,800 g/m 2 , in terms of a solid content basis, per one application.
  • the amount coated is less than 300 g/m 2 in terms of a solid content basis, the film thickness becomes 0.2 mm or less, resulting in difficulty to exhibit the performance of the coating film of the present invention.
  • exceeding 2,000 g/m 2 is unfavorable because the coating film becomes easy to crack.
  • the total amount coated is from 300 to 3,000 g/m 2 , and preferably from 1,000 to 2,400 g/m 2 , in terms of a solid content basis.
  • the film When the total amount coated is less than 300 g/m 2 in terms of a solid content basis, the film is too thin, resulting in difficulty to exhibit the performance of the coating film of the present invention. On the other hand, exceeding 3,000 g/m 2 unfavorably results in easy cracking.
  • the dry thickness of the coating film of the present invention obtained by coating, drying and hardening is from 0.2 to 2 mm, and preferably from 0.4 to 1.2 mm.
  • the film thickness is less than 0.2 mm, the performance of the coating film of the present invention is difficult to be exhibited.
  • exceeding 2 mm unfavorably results in easy cracking.
  • the nonflammable MDF of the present invention becomes excellent in water resistance and strong, because (c) the hardener is used.
  • the inorganic coating agent forming the coating film is mainly composed of (a) the quaternary ammonium silicate and (b) the inorganic filler, so that the coating film protects a base material, has good adhesion to the base material, is excellent in nonflammability, heat resistance and soil resistance, and also has air permeability and hydrophilicity.
  • the coating film follows expansion and contraction of the MDF because of its good air _
  • permeability has good freezing thawing resistance because of no occurrence of internal dew condensation, and is also excellent in weather resistance and natural pollution resistance.
  • it reflects heat energy radiated to the nonflammable MDF, and further, it is difficult to conduct heat to an unheated surface because of its low thermal conductivity. Accordingly, it can be used as an excellent fire-resisting material or heat insulating material, and further as a sound absorbing material caused by its porosity.
  • An inorganic coating agent was prepared according to compounding amounts shown in Table 1. Compounds (a) to (e) were placed in a stirring tank and mildly stirred, followed by stirring at about 5,000 rpm for 10 minutes by using a high-speed stirrer and filtration through a 60-mesh filter. Thus, an inorganic coating agent was prepared.
  • Wood chips were fibrillated, and 19% by weight of a melamine-urea resin and 11% by weight of a silicate-based fire retardant, SIRIONO (manufactured by F-Stop, Belgium) were added thereto, followed by drying. Then, a mat was formed with a dry sheet making machine, and preliminarily compressed. The preliminarily compressed mat was hot pressed to prepare two kinds of fire retardant MDFs having thicknesses of 12 mm and 18 mm. Then, they were cut to 100x100 mm and 500x500mm to form test pieces.
  • SIRIONO silicate-based fire retardant
  • the inorganic coating agent prepared was applied to a single side or both sides of each test piece in an amount of about 1,400 g per m 2 with an air spray, and dried at ordinary temperature for 3 hours, followed by standing in a room for -
  • the thickness of the coating film was 750 ⁇ m.
  • the contents of the test pieces are shown in Table 2. An uncoated test piece was taken as F.
  • test piece A conformed to a semi-nonflammable material (the total heat generation amount (MJ/m 2 ) after 10 minutes is 8 or less), and test pieces B, C and D conformed to a nonflammable material (the total heat generation amount (MJ/m 2 ) after 20 minutes is 8 or less).
  • Uncoated test piece F was not ignited, but unsuitable for the nonflammable material (the total heat generation amount (MJ/m 2 ) after 20 minutes is 8 or less).
  • Example 6 Using test piece E of Table 2 described above, a test based on the fire-resisting performance test necessary for fire-resisting construction performance (Building Standard law, article 2, item 7) was made. The test method is shown in Fig. 1 and Fig. 2.
  • test piece E was put between stainless steel plates having a size of 700x120 mm and a thickness of 5 mm, both ends of which were fastened with rod screws and fixed by application of pressure.
  • test piece E was heated with two gas burners at 900 to 1,000 0 C for 1 hour, as shown in Fig.2. The state of a heated surface was observed, and the temperatures of four positions on an unheated surface shown in Fig. 2 were measured with thermocouples. After the termination of heating, the test piece was allowed to stand for 3 hours, and the state of test piece E was observed.
  • the states of the heated surface and the unheated surface are shown in Table 4. [0050] [Table 4]
  • the temperatures of the unheated surface are less than 100 0 C, which shows extremely high heat reflective heat insulating properties.
  • the effect on the unheated surface is scarcely observed.
  • the heated surface is cracked at two positions of the coating film to come into a state in which the surface slightly rises.
  • no changes to pressure are observed, although about 2 to 3 mm of a surface layer of the base material (MDF) is carbonized.
  • the thermal conductivity was measured, based on the plate comparison method of JIS A1412.
  • the rate of sound absorption by the reverberation room method was measured, based on JIS A1409.
  • the thickness of test piece B is 19.6 mm. ⁇ Water Absorption>
  • the water absorption was measured, based on JIS A5907.5.5.
  • the water content was measured, based on JIS A5906.7.3. ⁇ Bending Strength>
  • the bending strength was measured, based on JIS A5906.7.4.
  • the wet bending strength was measured, based on the wet bending strength test A of JIS A5908.5.5.1.
  • the nonflammable MDF of the present invention becomes a strong one which is nonflammable, excellent in fire resistance, heat resistance, heat insulation, heat reflecting properties, sound absorption, moisture conditioning, weather resistance, water resistance, processability and mechanical strength, light in weight, and has air permeability.
  • interior furnishings, exterior claddings and structural materials of architectural structures such as houses, mansions, office buildings, factories and warehouses, vehicles, ships and vessels, airplanes, electric products, acoustic equipments, chemical plants, power equipment, indoor and outdoor pipes, containers, freezers and the like, and exhibits effects of improvements in fire protection and earthquake resistance, weight saving, an increase in comfort, energy saving, a reduction in cost and the like.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention a trait à un panneau de fibres de densité moyenne ininflammable obtenu par la formation d'un film de revêtement inorganique perméable à l'air ayant une épaisseur comprise entre 0,2 et 2 mm sur une surface d'un panneau de fibres à densité moyenne obtenu par l'ajout d'un agent ignifugeant, ainsi qu'une fibre ligneuse et un adhésif, et la formation par pressage à chaud, lorsqu'il est produit; et à son procédé de production. Le panneau de fibres de densité moyenne ininflammable obtenu par l'invention présente une excellente résistance au feu et d'excellentes propriétés de réflexion thermique, ainsi qu'une excellente ininiflammabilité, une tenue mécanique élevée, et une résistance élevée aux intempéries, de sorte qu'il peut être utilisé comme matériau structurel de protection contre le feu. En outre, la tenue à la chaleur, la résistance aux intempéries et l'efficacité d'atténuation sonore sont améliorées sans affecter les propriétés intrinsèques du panneau de fibres de densité moyenne telles que la tenue au cintrage, la dureté, la légèreté et l'aptitude au traitement, et les propriétés de résistance aux conditions d'humidité et la résistance aux salissures sont également excellentes.
PCT/JP2004/011733 2004-08-10 2004-08-10 Panneau de fibres de densite moyenne ininflammable et son procede de production Ceased WO2006016416A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8123988B2 (en) * 2005-11-30 2012-02-28 Thompson Jr Patrick Martin Wood treatment composition and process
EP2944621A1 (fr) 2014-05-15 2015-11-18 Omya International AG Produit d'une plaque en fibres comprenant un matériau contenant du carbonate de calcium
CN115256578A (zh) * 2022-07-27 2022-11-01 李开天 一种木材防腐阻燃剂及其制备方法和应用方法

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JPS5124370B2 (fr) * 1973-03-13 1976-07-23
JPS523237B1 (fr) * 1971-04-05 1977-01-26
JPH06198611A (ja) * 1992-12-28 1994-07-19 Fujimori Kogyo Kk 木質難燃板
JPH11349950A (ja) * 1998-06-11 1999-12-21 San Techno Chemical Kk 木質材の薄膜防炎性クリアコート用組成物及び防炎性クリアコート処理木質材

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Publication number Priority date Publication date Assignee Title
JPS4931084B1 (fr) * 1969-05-07 1974-08-19
JPS523237B1 (fr) * 1971-04-05 1977-01-26
JPS5124370B2 (fr) * 1973-03-13 1976-07-23
JPH06198611A (ja) * 1992-12-28 1994-07-19 Fujimori Kogyo Kk 木質難燃板
JPH11349950A (ja) * 1998-06-11 1999-12-21 San Techno Chemical Kk 木質材の薄膜防炎性クリアコート用組成物及び防炎性クリアコート処理木質材

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US8123988B2 (en) * 2005-11-30 2012-02-28 Thompson Jr Patrick Martin Wood treatment composition and process
EP2944621A1 (fr) 2014-05-15 2015-11-18 Omya International AG Produit d'une plaque en fibres comprenant un matériau contenant du carbonate de calcium
US10086532B2 (en) 2014-05-15 2018-10-02 Omya International Ag Fiber board product comprising a calcium carbonate-containing material
CN115256578A (zh) * 2022-07-27 2022-11-01 李开天 一种木材防腐阻燃剂及其制备方法和应用方法

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