WO1996033848A1 - Procede pour ignifuger un materiau a base de bois et procede pour produire un contreplaque ignifuge - Google Patents
Procede pour ignifuger un materiau a base de bois et procede pour produire un contreplaque ignifuge Download PDFInfo
- Publication number
- WO1996033848A1 WO1996033848A1 PCT/JP1996/001189 JP9601189W WO9633848A1 WO 1996033848 A1 WO1996033848 A1 WO 1996033848A1 JP 9601189 W JP9601189 W JP 9601189W WO 9633848 A1 WO9633848 A1 WO 9633848A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flame
- retardant
- drying
- plywood
- wood
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/32—Mixtures of different inorganic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0228—Spraying apparatus, e.g. tunnels
Definitions
- the present invention relates to the flame retardancy treatment of wood materials that can achieve the flame retardancy by the flame retardancy test specified in the Japanese Industrial Standards (JIS) and the fire prevention regulations and other public regulations.
- JIS Japanese Industrial Standards
- Wood-based building materials that have been certified as flame-resistant must be adopted with the understanding that they are currently extremely expensive. At present, wood-based building materials that have undergone flame-retardant treatment in this way It is thought that the reason why these are becoming extremely expensive is that the difficulty or complexity of the flame retardant treatment greatly affects them.
- the applicant of the present invention has tried to apply the technology to various fields against the background of the ⁇ transparent technology '' cultivated over many years in the heterogeneous field of dyeing, and By taking advantage of the opportunity to proceed with development and research and conducting various trials and mistakes, by applying the special features of the cellular structure of wood, any forced decompression or depressurization is required. Without the room temperature and normal pressure, the inventor has succeeded in finding an original method, and in the present invention, the woody material placed in the above-described situation is used. In view of the flame-retardant state of wood-like materials, we have developed and completed a completely new method of flame-retarding wood using a unique ⁇ -permeability technology. I will go. Disclosure of the invention
- the present invention relates to a method for heating and stirring for a predetermined time in an aqueous solution containing about 10% of ether alone or a mixture of ether and alcohol to obtain ammonium phosphate, ammonium bromide, boric acid, and borax.
- Ammonium chloride, magnesium oxide, calcium phosphate, and lanthanum chloride have a flame retardant content of about 30, 10, 10, 20, 20, 20, 6, 2, 2 (%).
- the mixture was mixed at a mixing ratio and the mixture was made approximately 30 to 50% at the flame retardant substance, and the heating was stopped and the temperature was controlled so that the temperature did not drop below 6 CTC.
- the mixture is sprayed directly onto the wood material placed under conventional conditions over the fSl at a specified time, and the wood material is processed at the heavy fi ratio in the drying (drying with a water content of about 10%) stage. At least about 20-30% of the weight ⁇ ⁇ from the previous weight ⁇
- the basic method of flame-retarding wood materials is to adopt a method of arresting flame retardancy through the drying treatment step after continuation of the mixed liquid infiltration treatment step. is there.
- the present invention includes a method for producing a flammable plywood which can be realized by interrogating the method for making wood material flame-retardant which forms the basis of the present invention described above.
- Difficulty consisting of borax, ammonium chloride, magnetized IK, magnesium, calcium phosphate, and lanthanum chloride. Flammable substances are mixed at a mixing ratio of approximately 30, 10, 10, 20, 20, 6, 2, 2 (%), and the flame retardancy is approximately 30 to 50%.
- the temperature-controlled mixed liquid was kept directly injected to the wood material placed under normal conditions for a predetermined period of time, so that the overflow did not drop below 60, and drying ( (Drying with a water content of about 10%)
- the mixture liquid infiltration process is performed so that at least about 20 to 30% of the weight of the wood material is arrested from the overlap before processing.
- the veneer is dried and laminated with a heat-resistant adhesive to form a plywood. This is a method for producing flame-retardant plywood, which is performed using a combustion treatment method.
- Fig. 1 shows the flame retardancy test according to the rules of our flame retardant class 3 Ayasho (established on September 17, 1992, No. 1 5 18 Akita Foundation) It is a graph of exhaust temperature and emission fi curve of the specimen No. 1 attached to the Prefectural Industrial Materials Test (Certificate of President of the Center).
- Exhaust temperature and fume S-curve diagram of sample No. 2 Fig. 3 shows exhaust curve of test no. 3 attached to flame retardant test
- Figure 4 shows the results of the test results of the flame retardancy test in accordance with the provisions of the IS Fire Prevention Prevention System, Kiyoshi No. 63, Paragraph 2 (Preliminary date, October 30, 1992). (Trial) No. 5 Exhaust temperature of specimen No.
- FIG. 5 A attached to Tokyo Fire Department Fire Department Chief of Fire and Fire Smoke Fi curve, Fig. 5 is attached to the test result damage of flame retardancy test.
- a combination of ammonium phosphate, ammonium bromide, boric acid, borax, ammonium chloride, magnesium oxide, calcium phosphate, and lanthanum chloride The combined flame retardant is heated and stirred for a predetermined time in an aqueous solution containing about 10% of ethers alone or a mixed solvent of ethers and alcohols for a predetermined time.
- the mixing ratio is approximately 30, 10, 10, 20, 20, 6.2, 2 (%), and the flammability substance Ban degree is approximately 30 ⁇ !
- a mixed solution with an area of about 0% is formed.
- the mixture is continuously sprayed directly onto wood veneer ground to a thickness of about 2 to 3 IBB if it is flame-resistant plywood, if it is clear, Drying (drying with a water content of about 10%)
- the weight of the wood material is at least about 20 to 30% of the weight before treatment:! This is a flammable treatment method in which the wood material is subjected to a flame-retardant treatment through a drying process after being permeable.
- each substance consisting of ammonium phosphate, ammonium bromide, boric acid, borax, ammonium chloride, magnesium oxide, phosphoric acid / resin, and a combination of lanthanum chloride is required.
- the melting ratio in the liquid is approximately 30,] 0, 10, 20, 20, 6, 2, 2 (%) in order.
- proper destruction within the range of common sense is naturally allowed, but in cases where there are special circumstances, for example, when the target wood material has a property that is slightly perishable, etc.
- it is also a part of the design change to adjust the proportion of ammonium bromide 10% to a proportion of about 20 to 30% as appropriate.
- Magnesium oxide, calcium phosphate, And lanthanum chloride In some cases, the eluate is used.
- a solvent penetrant
- it has the function of promoting the water solubility of the above-mentioned flame retardant (increases its ability to dissolve in water), and at the same time, it is used as a bit for wood cells.
- Cell wall hole In the passage of the sap, it has a valve for adjusting the water transfer.
- the dissolving power increases as the temperature rises, and the dissolving power is equal to that of water, Water to be crucible; from ethers or alcohols that do not evaporate first even if the temperature is increased and change the solvent, the solvent dissolves with increasing temperature a relatively low molecular weight is to take sex ⁇ 3 ⁇ 4 a, for example is in the ether solvent, diethylene glycol Monoechirue ether (carbitol H 1 4 0 3>, also in an alcohol solvent, propylene Glycol (propanezihol C 3 H G 0 2 ) or triethylene glycol (c 6 ⁇ 14 ⁇ 4 ) is selected.
- the combination ratio of ether or alcohol as a solvent is the first type of wood material to be treated for burning, for example, a relatively small amount of discoloration such as rawan does not matter much. It depends on the conditions, such as whether the wood is low-handling, S-grade wood that must not be discolored, or high-grade wood that is transparent and has a dense structure, etc. It must be determined by considering the permissible degree of toxicity, that is, the property of ethers, which is economical, but the solvent with lower boiling point becomes more toxic. However, if the solvent is harmless to the human body but does not yield even if it has a low level of toxicity, only ether-based solvents will be used alone, and some sacrifice will be caused. Even as a solvent The ability to a «destination, is a solvent which must be minimized toxicity reduced and a adopting a mixed solvent obtained by mixing an alcoholic solvent of about 3 ⁇ 4 large 3 ⁇ %"
- the above-mentioned solvent can rapidly form a ratio of about 10% with respect to water, but S: can be used as a flame-retardant substance (i.e., phosphorescent ammonium, ammonium bromide, boron, borax, ammonium chloride, magnesium oxide,
- a flame-retardant substance i.e., phosphorescent ammonium, ammonium bromide, boron, borax, ammonium chloride, magnesium oxide
- the water level rises to about 103 to 105 due to the contaminants.
- the solvent and the flammable substance are dissolved in water in an extremely homogeneous state to form a predetermined liquid mixture.
- the total amount of the flammable substances was adjusted so that the total amount was approximately 3 () to 50% of the aqueous solution.
- Liquid mixture (at this point In, the above-mentioned heating for melting the flame-retardant substance is stopped, the state is left as it is, and the temperature naturally drops to room temperature. The heating and stirring of the mixture is stopped and the mixture is allowed to cool down naturally, and the mixture is controlled immediately after the heating and stirring are stopped, while appropriately controlling the overflow so that the final temperature does not fall below 6 O'C.
- the flame-retardant material that is sprayed onto the entire surface of the wooden material in a shower manner, and that is melted at a predetermined ratio, is permeated and fixed in the wooden material, and the weight of the wooden material (about 10% in water content)
- the weight of the wood material in the dry state) is about 20% to 30% of the wood material before the treatment. (It varies depending on the solvent used, as well as the material and material thickness.)
- continuous irradiation treatment is usually continued with about 20 to 24 o'clock as a guide, and then the same as before By performing the drying treatment, the flame retarding treatment of the wood material of the present invention is completed.
- the target wood material is suspended in a sealed container, and a mixed liquid whose temperature is controlled so that the temperature does not drop below 6 O'C from the piping nozzle in the sealed container Is carried out in a shower manner so that the mixed liquid is supplied to the entire surface of the wooden material without being exhausted.
- This processing step is a drying step after a predetermined drying step. In the condition (dry wood with a water content of about 10%), it was arrested that the overlap was about 20% to 30% of the fi fi before treatment. The temperature of the mixture during the spraying process should be, for example.
- the recovery tank which was installed in a steam pipe below the closed vessel, The mixture is then collected and collected.
- An economical processing method S can be achieved by using a circulation system in which the mixed solution is sent out to a pipe slot / return while controlling.
- the wood material that has undergone the permeation process as intended is taken out of the sealed container for the permeation process, transferred to a drying room, and used in the conventional wood drying method, for example, Suitable for steam of about 1 25 C! : By mixing dry sky ⁇ in proportions! Through this process, wood material that has been burned in a dry state of about 10% with a water content of ft is realized.
- the heat-resistant adhesive used in the method for producing a flame-retardant plywood produced using the basic treatment method of the present invention is an addition condensation type phenolic resin, which has water resistance, chemical resistance, and aging resistance. Most suitable is resorcinol resin, which exhibits a value of 150 to 180 "C even with heat resistance and heat resistance, and about 20 parts of formaldehyde (methanal) is added as a curing agent ,
- formaldehyde as a curing agent generates formalin gas when heated, and uses hexamethylenetetramine (perrotrobin) crystallized by adding ammonia water to prevent it.
- perrotrobin hexamethylenetetramine
- 5% of zirconium oxide (ZrO ⁇ ), zirconium carbide (ZrC), and tantalum carbide (TaC) are mixed at a ratio of 3: 1: 1 to improve heat resistance.
- the number of wood pieces is prepared according to the intended use, for example, 5 or 7 layers.
- a so-called conventional plywood manufacturing process a plywood of a predetermined thickness, for example, a flame-resistant plywood such as a 5-ply flame-resistant plywood or a 7-ply flame-resistant plywood is produced.
- the method for flame retarding wood material according to the present invention comprises mixing a predetermined ratio of solvent permeability> with a flame retardant substance in water.
- the temperature should not be reduced below 6 CTC simply; only by controlling the S degree, the wood would always overflow without any conventional heating or decompression treatment.
- It is a very simple and economical flame retardant treatment method that enables the flame retardant treatment in the state of being placed. It is instructed by the Yamagata Industrial Technology Center compared to the conventional pressurized or pressure method. ⁇ According to the test S of the research, the equipment cost is 1/3 to 14, that is, the conventional pressurization. U () 10,000 yen.
- Fig. 1 shows the exhaust overflow of the test specimen NO.1 in the test. Smoke; Curve diagram.
- Fig. 2 shows the exhaust gas temperature of the test sample No. 2 Smoke curve.
- Figure 3 shows the exhaust of test suspension No. 3; a degree ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ are doing .
- Fig. 4 shows the exhaust gas temperature and smoke emission curve of sample A in the test
- Fig. 5 shows the exhaust temperature and smoke emission curve of sample B
- Fig. 6 shows the test curve.
- Exhaust of the sensitive body number C; B degree ⁇ Smoke curve diagram is as shown respectively, and the wood material flame-retarded by the treatment method of the present invention It has been proven that it can reliably achieve flame retardant performance.
- These flame-retardant materials are composed of flame-retardant substances that have settled in the wood, and are thermally decomposed by the addition of heat from the outside to become non-flammable substances (gas, etc.) such as ammonia, carbon dioxide, and water.
- non-flammable substances gas, etc.
- flame-retardant substances such as lanthanum banyan, borax, and ammonium chloride are used when they are heated together.
- the method for flame retarding wood material of the present invention does not require any forced ⁇ permeation as in the prior art, such as pressurization and ⁇ pressure.
- This makes it possible to relatively simply permeate the incinerated material Rfi to or from the wood cell compartment under normal pressure (normal state), which is extremely simple.
- Combustion treatment by a simple equipment
- the degree of infiltration can be smoothed and the efficiency of the flame retardant treatment can be increased, and as a result, the flame retardant as before It has a remarkable feature that it can be extremely inexpensive compared to processing.
- the flame-retardant performance obtained by the flame-retardant treatment method or the method of manufacturing a flame-retardant plywood using the same is due to the fact that the flame-retardant substance or heat-resistant bonding material in the wood is used alone or as a flame-retardant substance. It is highly reliable that the mutual reaction or the flame retardant substance and the additive substance in the heat-resistant adhesive work together to generate the effectiveness by heating, and it is said that the official standards can be successfully achieved. Because of its excellent features, it can be widely used in various buildings, providing ample facilities for fire, and protecting the lives and property of the people. It is expected that it will exert its power greatly.
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU55155/96A AU5515596A (en) | 1995-04-27 | 1996-04-30 | Method of rendering wooden material flame-retardant and proc ess for producing flame-retarded plywood therewith |
EP96912291A EP0838316A1 (en) | 1995-04-27 | 1996-04-30 | Method of rendering wooden material flame-retardant and process for producing flame-retarded plywood therewith |
BR9608320-4A BR9608320A (pt) | 1995-04-27 | 1996-04-30 | Método de tratamento de incombustibilidade de madeira e outro de fabricação de placas compensadas que o utiliza. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/128942 | 1995-04-27 | ||
JP12894295A JPH08300311A (ja) | 1995-04-27 | 1995-04-27 | 木質材の難燃化処理方法、およびそれを使用した難燃合板の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996033848A1 true WO1996033848A1 (fr) | 1996-10-31 |
Family
ID=14997222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001189 WO1996033848A1 (fr) | 1995-04-27 | 1996-04-30 | Procede pour ignifuger un materiau a base de bois et procede pour produire un contreplaque ignifuge |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0838316A1 (ja) |
JP (1) | JPH08300311A (ja) |
AU (1) | AU5515596A (ja) |
BR (1) | BR9608320A (ja) |
CA (1) | CA2219317A1 (ja) |
WO (1) | WO1996033848A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006058445B3 (de) * | 2006-12-10 | 2008-06-19 | Moralt Tischlerplatten Gmbh & Co.Kg | Leichtbauplatte sowie Herstellungsverfahren |
RU2020123687A (ru) * | 2017-12-20 | 2022-01-20 | Бёрнблок Холдинг Апс | Огнестойкая пропитка древесных пластин |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4949498A (ja) * | 1972-09-14 | 1974-05-14 | ||
JPS5351699A (en) * | 1976-07-21 | 1978-05-11 | Savio Ermanno | Fire protective composition for various materials |
JPS6220584A (ja) * | 1985-07-19 | 1987-01-29 | ヒイスス・ムリヨ・コントレラス | 耐火組成物および耐火性付与方法 |
JPS62231074A (ja) * | 1986-03-28 | 1987-10-09 | 村田 友昭 | 耐火性繊維性製品の製法 |
JPH04173102A (ja) * | 1990-11-05 | 1992-06-19 | Sueo Ishikawa | 難燃性木材加工品およびその製造方法 |
-
1995
- 1995-04-27 JP JP12894295A patent/JPH08300311A/ja active Pending
-
1996
- 1996-04-30 CA CA 2219317 patent/CA2219317A1/en not_active Abandoned
- 1996-04-30 BR BR9608320-4A patent/BR9608320A/pt unknown
- 1996-04-30 WO PCT/JP1996/001189 patent/WO1996033848A1/ja not_active Application Discontinuation
- 1996-04-30 EP EP96912291A patent/EP0838316A1/en not_active Withdrawn
- 1996-04-30 AU AU55155/96A patent/AU5515596A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4949498A (ja) * | 1972-09-14 | 1974-05-14 | ||
JPS5351699A (en) * | 1976-07-21 | 1978-05-11 | Savio Ermanno | Fire protective composition for various materials |
JPS6220584A (ja) * | 1985-07-19 | 1987-01-29 | ヒイスス・ムリヨ・コントレラス | 耐火組成物および耐火性付与方法 |
JPS62231074A (ja) * | 1986-03-28 | 1987-10-09 | 村田 友昭 | 耐火性繊維性製品の製法 |
JPH04173102A (ja) * | 1990-11-05 | 1992-06-19 | Sueo Ishikawa | 難燃性木材加工品およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0838316A1 (en) | 1998-04-29 |
BR9608320A (pt) | 1999-11-30 |
CA2219317A1 (en) | 1996-10-31 |
AU5515596A (en) | 1996-11-18 |
JPH08300311A (ja) | 1996-11-19 |
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