WO2007055074A1 - 建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等 - Google Patents
建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等 Download PDFInfo
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- WO2007055074A1 WO2007055074A1 PCT/JP2006/319543 JP2006319543W WO2007055074A1 WO 2007055074 A1 WO2007055074 A1 WO 2007055074A1 JP 2006319543 W JP2006319543 W JP 2006319543W WO 2007055074 A1 WO2007055074 A1 WO 2007055074A1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/30—Oxides other than silica
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00586—Roofing materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
- C04B2111/00629—Gypsum-paper board like materials the covering sheets being made of material other than paper
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00862—Uses not provided for elsewhere in C04B2111/00 for nuclear applications, e.g. ray-absorbing concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/60—Flooring materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate
Definitions
- the present invention mainly relates to a gypsum-based composition for building materials and a gypsum board formed by solidifying the same.
- the present invention relates to high-density gypsum boards that are useful for partition walls that have excellent sound insulation as building materials for building interiors, and to lead radiation from radiation sources to facilities that use radiation, such as facilities that use X-rays. It relates to a radiation shielding gypsum board that can be effectively shielded without use. Furthermore, the present invention relates to a dry construction method such as a sound insulation wall using the above-mentioned gypsum board, a dry construction method for radiation shielding, and walls, ceilings, floors, facilities and the like.
- Gypsum board As a representative gypsum-based building material. Gypsum board is usually made by pouring mud (gypsum slurry) obtained by kneading calcined gypsum and water between upper and lower gypsum board base paper, forming into a plate shape, rough cutting after curing, and drying. Manufactured by cutting into dimensions.
- the gypsum board obtained by the casting method is obtained by covering a gypsum core with a base paper for gypsum board, and has excellent performance such as fire resistance, sound insulation, workability and economy. Because of this performance, it has been used for dry-type door walls of high-rise and super-high-rise buildings that have been rapidly spreading in recent years, and has excellent characteristics such as process compatibility, weight reduction, and followability to shaking. Is recognized as having
- the dry door wall can be retrofitted during the process of separating the driving force of the fuselage.
- a basic panel such as calcium silicate board is put up so that a material such as glass wool with sound insulation is interposed inside, and fixed with Tatsupin screw etc. to form a wall, and then an upper board is placed on both sides It is finished by using glue and a table, nails or screws.
- the role of the profitable dry doorway wall is associated with the important purpose of separating neighboring doors, ensuring an environment where people can live comfortably, and protecting the life's assets in the event of a disaster (fire, etc.).
- the method of improving the sound insulation performance increase the wall thickness, increase the weight of the wall by increasing the face material (board), or make it a hollow wall (double to multiple wall) with an air layer. Depending on circumstances such as new construction or renovation, it will be selected on a case-by-case basis. If the face material used for improving the sound insulation is higher in specific gravity than the above-mentioned sold gypsum board, the degree of freedom in design and selection is further increased.
- Gypsum slurry containing 10 to 250 parts by weight of dihydrate gypsum to 100 parts by weight of water gypsum is cast and cast between the base paper for gypsum board 1.
- 15-: L 23 gypsum board is disclosed (For example, Patent Document 1).
- a gypsum core with a specific amount of inorganic fibers and organic fibers dispersed in a gypsum core that has the same nails and screws, hardness, out-of-plane bending rigidity, and impact resistance is coated with base paper for gypsum board.
- a hard gypsum board having a specific gravity ⁇ ⁇ 1.6 is disclosed (for example, Patent Document 2).
- the dry gypsum with light weight and thin wall thickness has sufficient characteristics such as fire resistance, sound insulation, deformation followability, out-of-plane bending rigidity, hardness, etc., using the hard gypsum board of Patent Document 2 as the upper board.
- a door wall is disclosed (for example, Patent Document 3).
- radiation shielding materials are used to protect human bodies in radiation utilization facilities such as medical and industrial X-ray examination rooms, accelerator utilization facilities, and nuclear facilities.
- lead is the most used material for shielding in X-ray facilities.
- this lead should be used in the form of a lead block or by mixing lead powder in a synthetic resin sheet such as rubber or vinyl chloride. It is.
- a partition wall having an X-ray protective property lined with a lead plate is disclosed as a fireproof building material such as gypsum board (for example, Patent Document 4).
- Patent Document 1 Japanese Patent Laid-Open No. 08-325045
- Patent Document 2 Japanese Patent Application Laid-Open No. 08-042111
- Patent Document 3 Japanese Patent Application Laid-Open No. 08-074358
- Patent Document 4 Japanese Patent Laid-Open No. 2005-133414
- Patent Document 5 JP 59-214799 A
- Patent Document 6 Japanese Patent Laid-Open No. 05-264788
- Documents 1 and 2 above provide a high specific gravity gypsum-based building board that is superior in strength characteristics to a commercially available gypsum board.
- the main material constituting the gypsum core is gypsum (specific gravity is 2.32 as dihydrate gypsum) or inorganic fiber (specific gravity is 2.5 to 3.0 as glass fiber) and organic fiber (true specific gravity is cellulose fiber)
- the production method is one in which a gypsum slurry in which the above materials are dispersed and mixed in water is poured between the base paper for gypsum board and molded.
- the radiation shielding material described in the above-mentioned document 5 uses a norium salt in place of lead for the radiation shielding function, but the Ba element is present in the form of barite and feldspar in the tile.
- a radiation shielding material having all functions is provided.
- the material obtained here is tiles, when it is heavy and used as a building material in a facility, it is limited to use as a tile and its use is naturally limited. The method was also limited.
- the present invention has been made in view of the above problems, and has a high specific gravity gypsum core having a completely different structure from that of the prior art, works with nails and screws, has hardness, out-of-plane bending rigidity, and impact resistance. It is an object of the present invention to provide a gypsum board having properties, and to provide a sound insulation wall construction method and a sound insulation wall using such a gypsum board.
- Another problem of the present invention is that it has a radiation shielding function, is relatively lightweight, easy to handle, harmless to the human body, can be constructed by screwing, etc., and can be applied to walls and ceilings. It is an object of the present invention to provide a gypsum board that is easy to handle, and to provide a radiation shielding dry construction method using such a gypsum board and a radiation shielding facility constructed thereby.
- Still another object of the present invention is to wet a wall, ceiling, or floor as a wet coating material such as plaster, putty, or paint by mixing with a gap filler in the dry method for shielding radiation or with water as it is. It is providing the composition for building materials which can be used for a construction method. Means for solving the problem
- the present invention is based on a combination of one or more of hydraulic gypsum, dry-curing calcium carbonate or calcium hydroxide or synthetic resin emulsion, and an inorganic filler having a high specific gravity.
- the blended composition can be solidified by reaction or drying when water is added, especially for gypsum-based building materials, with a higher specific gravity (specific gravity 1.4 to 2.0, especially difficult to achieve in the past). Stones that have a practical range of properties as building materials based on the knowledge that materials with a specific gravity of 1.6 to 2.0 can be made relatively easily. As a result of intensive studies on the composition of the plaster core and the structure of the plaster board, the present invention has been achieved.
- the specific high specific gravity inorganic filler is a radiation shielding material
- the solidified product of the composition of the present invention is easy to handle based on the knowledge that it has practical radiation shielding performance such as X-rays.
- This invention was made as a result of diligent research on a gypsum board that has radiation shielding performance while maintaining the characteristics of an excellent building material equivalent to that of gypsum board.
- Calcium sulfate, calcium carbonate, calcium hydroxide, and organic synthetic resin emulsifying group power that is also selected as at least one or two or more kinds of base materials, barium chloride, zinc oxide, aluminum oxide, 50 to 3000 parts by weight of an inorganic filler having a true specific gravity of 3.5 to 6.0 selected from the group consisting of titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate
- a composition for building materials characterized by comprising:
- calcium sulfate which is hydraulic gypsum, and at least one selected from the group power of barium chloride, zinc oxide, aluminum oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate and norium sulfate.
- the inorganic filler is barium chloride, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate, has a specific gravity of 0.8 to 2.0, and has radiation shielding performance. Plasterboard.
- the organic fiber is aramid, cellulose (including pulp), acrylic (including polyacrylo-tolyl), polyester (including polyethylene terephthalate), polyolefin (including polyethylene and polypropylene) or polyvinyl alcohol.
- a dry construction method for sound insulation wherein the gypsum board according to claim 5 is used to form walls, ceilings and floors.
- Radiation shielding dry type characterized by forming a wall or partition (including a movable partition wall and a movable partition with a desired height or higher), ceiling or floor using the gypsum board according to claim 6. Construction method.
- the building material composition according to claim 3 is mixed with water as necessary in the gap between the adjacent side surfaces of the gypsum plates or the side surfaces of the gypsum plates and the abutting portion or joint portion of the ceiling, floor or pillar.
- the gypsum board according to claim 6 is arranged on a wall or partition (including a movable partition and a movable partition having a desired height or more), a ceiling or a floor, and the side surfaces of the arranged gypsum boards or the A radiation utilization facility, characterized in that a solidified product of the building material composition according to claim 3 is filled in a gap between a side face of a gypsum board and a ceiling, a floor, or a pillar, or a joint.
- the building material composition of the present invention provides a plaster-type plaster, a reaction-curing type or a dry-curing type putty. These building material compositions can be used as a fluid or non-fluid slurry or paste by adding an appropriate amount of water in a wet method for forming walls, ceilings or floors as they are, or as described later in the present invention.
- a wet method for forming walls, ceilings or floors as they are, or as described later in the present invention.
- the dry wall method using gypsum board it is used to fill the gaps between the seams between the gypsum boards arranged adjacent to each other and the walls and pillars, ceiling or floor.
- Calcium sulfate as one of the base materials used in the present invention is gypsum
- hydraulic gypsum includes OC type hemihydrate gypsum and Z or ⁇ type hemihydrate gypsum, each hemihydrate gypsum is natural gypsum
- It is a calcined gypsum obtained by calcining chemical gypsum and flue gas desulfurization gypsum in water or in the air.
- Type ⁇ is obtained by firing in water (including in steam)
- type j8 is obtained by firing in air.
- calcined gypsum is used synonymously with hemihydrate gypsum.
- ⁇ -type calcined gypsum is usually used as the hydraulic gypsum of the building material composition of the present invention. However, it may be used in combination with j8-type calcined gypsum, and may be used in combination with calcium carbonate or coconut emulsion, which are other base materials described later, if necessary. When ⁇ -type calcined gypsum is used, it is recommended to adjust the gypsum slurry by adding 35 to 45% water to the calcined gypsum.
- base materials of the present invention are calcium carbonate, calcium hydroxide, and resin emulsion, which are used as a main material for a dry-curing putty or an aqueous coating material.
- the resin emulsion is an ethylene emulsion, specifically, vinyl acetate-ethylene copolymer resin emulsion, vinyl acetate-ethylene monosalt-vinyl terpolymer, resin emulsion, oxalic acid. Vinyl-ethylene-acrylic copolymer, resin emulsion, and the like can be suitably used.
- a resin emulsion When a resin emulsion is used as a base material, it can be used as a putty or a paint as it is or by mixing water as needed.
- Each of the above substrates may be used alone as a substrate, or a combination of two or more may be used as a substrate.
- various selections can be made according to workability such as filling property, elongation, film forming property, adhesion property, and drying property.
- the inorganic filler of the composition for building materials of the present invention it is preferable to use one having a true specific gravity of 3.5 to 6.0, which has a higher specific gravity than that of the base material.
- barium chloride, zinc oxide, acid aluminum, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate can be preferably used.
- the specific gravity of these inorganic fillers is shown in Table 1 below.
- Inorganic filler Specific gravity Inorganic filler Specific gravity Barium chloride 3.856 Barium oxide 5.72 Zinc oxide 5.61 Strontium carbonate 3.7 Aluminum oxide 3.7 Barium carbonate 4.43 Titanium oxide 4.2 Barium sulfate 4.5 Among these, when it is intended to obtain a solidified product having a high specific gravity, aluminum oxide and barium sulfate can be more suitably used because of their strengths such as price and availability.
- barium chloride, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate can be preferably used, and titanium oxide, strontium carbonate and Barium sulfate is particularly preferable because of its radiation shielding performance and availability.
- the building material composition of the present invention optionally further includes a curing accelerator, a curing retarder, an aggregate, various organic polymers, an organic solvent, a water reducing agent, a surfactant as an air entraining agent, and the like. It can be added and blended.
- the mixing ratio of the base material and the inorganic filler is 50 to 3000 parts by weight of the inorganic filler with respect to 100 parts by weight of the base material in the case of a building material composition used as a putty or a paint.
- the inorganic filler is 50 to 200 parts by weight per 100 parts by weight of the material. If the inorganic filler is less than 50 parts by weight, the gypsum board cannot have a high specific gravity, and the radiation shielding property of the solidified composition for building materials and the core of the gypsum board will not be sufficient.
- the inorganic filler if the inorganic filler exceeds 3000 parts by weight, the curability of the building material composition is adversely affected, and the coating film forming properties and the physical properties required as a solidified product cannot be obtained.
- the amount of the inorganic filler if the amount of the inorganic filler exceeds 200 parts by weight, the hardened formability of the gypsum core is insufficient, and the physical properties required as a solidified product cannot be obtained.
- a preferable blending amount of the inorganic filler in the case of a gypsum board is 80 to 170 parts by weight, and more preferably 100 to 140 parts by weight.
- the inorganic filler should be contained in an amount of 30 to 97% by weight in the total weight of the solidified product.
- the amount is preferably 40 to 90% by weight, more preferably 44 to 80% by weight.
- the content should be 30 to 80% by weight in the total weight of the gypsum core. Preferably it is 40-70 weight%, More preferably, it is 44-67 weight%.
- cover sheet used in the present invention glass fiber tissue and base paper for gypsum board are used.
- the glass fiber tissue is preferably in the form of a woven fabric, knit, non-woven fabric or web bonded with a suitable synthetic resin.
- One side of the glass fiber tissue is properly fitted. It may be coated with a synthetic resin coating layer impregnated to an arbitrary depth with a synthetic resin such as acrylic resin.
- a glass fiber tissue must be partially or completely embedded in the core surface, and if all is embedded, a smooth continuous film of gypsum must be formed on the outer surface of the glass fiber tissue. It is preferable that the glass fiber tissue is located as close as possible to the core surface, that is, the gypsum plate surface.
- the base paper for covering the gypsum core those having a basis weight of 70 to 300 g / m 2 and those conventionally used for gypsum board can be used.
- the inorganic filler is composed of barium chloride, zinc oxide, aluminum oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate.
- the effect on the curability of gypsum slurry is small V, and aluminum oxide or barium sulfate is more preferred because of its availability and availability.
- the specific gravity of the gypsum board of the present invention is 1.2 to 2.0. If the specific gravity is less than 1.2, the surface density does not increase sufficiently, so the sound insulation effect is small. 2. If it exceeds 0, there are problems such as cracking when nailing, and the weight of the plasterboard becomes heavy and inconvenient in handling.
- the actual specific gravity is practically about 1.4 due to restrictions on the preparation of a stable gypsum slurry during production.
- the specific gravity exceeds that, and those exceeding 1.6 can be manufactured relatively easily.
- the inorganic filler is barium chloride, titanium oxide, barium oxide, strontium carbonate, barium carbonate and barium sulfate, more preferably titanium oxide.
- Strontium carbonate compound or barium sulfate, and barium sulfate is the most preferable because of its comparative power shielding performance per unit content.
- the specific gravity of the gypsum plate is 0.8 to 2.0, preferably 1.0 to 1.6. If the specific gravity is less than 0.8, the inorganic filler content necessary to ensure radiation shielding performance may be insufficient.
- the fiber to be blended into the gypsum core in the present invention include organic fiber, inorganic fiber, or a mixture thereof, and organic fiber and inorganic fiber may be used in combination.
- the inorganic fiber is preferably a glass fiber or carbon fiber such as mineral fiber such as rock wool and sepiolite, glass fiber, and carbon fiber.
- organic fibers can be used as organic fibers such as strength amide, cellulose (including pulp fibers, especially beaten waste paper), acrylic (including polyacrylonitrile), polyester (including polyethylene terephthalate), Polyolefin (including polyethylene and polypropylene) or polybutyl alcohol can be preferably used.
- the surface of the fibers is coated with calcined gypsum by mixing the above fibers with calcined gypsum, etc.
- the amount of added force of the strong fiber is 1 to 5 parts by weight with respect to 100 parts by weight of calcined gypsum, and 1.2 to 4 parts by weight is preferred, and 1.5 to 3 parts by weight is more preferred.
- the shape of the fiber is preferably 5 to 50 microns in diameter and 3 to 12 mm in length in terms of quality and production. In particular, a fiber having a diameter of 0 to 20 microns and a length of 3 to 6 mm is preferable.
- the fiber may be in the form of a net (lattice). When inorganic fibers and organic fibers are used in combination, the ratio is preferably 1: 0.05 to 0.1: 1 (weight ratio).
- the gypsum board has been used in the quality or manufacture of aggregates, foam stabilizers, antifoaming agents, adhesion aids such as starch, waterproofing agents, Curing accelerator It can contain various additives such as curing retarder, moisture absorption / release material, formaldehyde adsorption / decomposition agent, activated carbon or VOC (volatile organic compound) adsorption material.
- the amount of water to be kneaded with calcined gypsum can be reduced, and if the strength of the product is improved, less drying energy is required for the power, which is advantageous in producing the gypsum board.
- the water reducing agent any water reducing agent such as naphthalene, lignin, melamine, polycarboxylic acid or bisphenol can be used.
- the amount added is 2 parts by weight or less, preferably 0.1 to 1.5 parts by weight per 100 parts by weight of gypsum.
- the amount of foaming agent is not more than 0.05 parts by weight per 100 parts by weight of calcined gypsum.
- the plasterboard of the present invention can be used as a dry door boundary wall such as high-rise and super-high-rise buildings and apartment buildings, partition walls of various buildings, ceiling boards, and flooring materials by improving various strengths.
- a sound-insulating hollow wall structure with face materials on both sides, and a sound absorbing material such as glass wool or rock wool in the hollow part, and both side materials are usually used for commercially available gypsum boards and other construction materials.
- the gypsum board of the present invention is used in combination with the board as the underlay, the sound insulation performance of the partition wall can be improved.
- the sound insulation performance can be improved by extending the high specific gravity gypsum board of the present invention on one side or both sides of a partition wall or a door wall having a hollow portion.
- the existing concrete (RC) wall can be “blown” so that a hollow portion is formed, and the high specific gravity gypsum board of the present invention can be attached to improve the sound insulation performance.
- X-ray shielding performance is expressed in terms of lead equivalent (mmPb) in terms of lead sheet thickness.
- ImmPb has the same X-ray shielding performance as a 1mm thick lead sheet, and is equivalent to a thickness of 1Ocm concrete.
- a normal X-ray room wall should have a shielding performance of 1.5-2mmPb. It is.
- the gypsum plate having radiation shielding performance of the present invention has an X-ray shielding performance of about 0.8 mmPb when, for example, the barium sulfate content in the gypsum core is 55% by weight and the thickness of the gypsum core is 12.5 mm. Therefore, in the case of a gypsum board with such a thickness, the necessary X-ray shielding performance can be obtained if two sheets are used in layers.
- the face and the width are lengths of 3 and 6 and 4 sides having a constant thickness, respectively. It is effective to use one having at least two side surfaces formed substantially perpendicular to the front and back surfaces with respect to the substantially parallel front and back surfaces. If such face materials are brought into contact with each other at right-angled sides, gaps and voids can be prevented.
- a wall height of 6 or more it is possible to form a wall without a gap by arranging a face material in which at least three side surfaces are formed at right angles to the front and back surfaces. .
- the gypsum board of the present invention having such a right side surface is formed by pouring gypsum slurry onto a cover sheet and forming a continuous plate-like body by suppressing the side edges in the longitudinal direction with a molding plate or the like. It can be manufactured by adjusting it to be a right angle.
- the side face in the width direction of the gypsum board may be cut at right angles when the gypsum core of the gypsum board is cured and dried and then cut into product dimensions with a rotary saw.
- glass fiber tissue is used as a force sheet for the production of gypsum board, it is necessary to cut the longitudinal direction of the gypsum board with a rotating saw.
- the longitudinal direction of the gypsum board can be cut with a rotating saw to make the side face a right angle.
- a composition having a radiation shielding performance is selected from the composition for building materials according to the present invention for a gap in a joint portion. Then, a predetermined amount of water is mixed and kneaded and solidified. in this way By doing so, a predetermined radiation shielding performance can be secured.
- the building material composition having radiation shielding performance includes calcium sulfate, calcium carbonate, calcium hydroxide, and organic synthetic resin emulsion power. At least one or more base materials selected 100 It is possible to use a mixture of 50 to 3000 parts by weight of one or more inorganic fillers that also select barium chloride, titanium oxide, barium oxide, strontium carbonate, barium carbonate, or barium sulfate. A preferable blending amount of the inorganic filler is 67 to 900 parts by weight, and more preferably 79 to 400 parts by weight.
- the most preferred are those with calcium carbonate or synthetic resin emulsion as the base material and barium sulfate as the inorganic filler due to workability and solidified properties.
- composition for building materials of the present invention is within the range that does not impair the properties of the composition of the present invention, and further, aggregates, anti-cracking materials, adhesives, water retention materials, colorants and other additives as necessary. Can be properly determined.
- the specific gravity of a cured or dried product obtained by adding water to the building material composition of the present invention is preferably 1.2 to 2.4, more preferably 1.4 to 2.
- the range is 0. If the specific gravity of the solidified product is less than 1.2, sufficient radiation shielding performance may not be obtained. On the other hand, when it exceeds 2.4, the workability of the mixture of the composition with water decreases.
- the gypsum plate of the present invention has a gypsum core with a high specific gravity that is completely different from the conventional one, and this is covered with a force bar sheet, so that nails and screws are effective, hardness, out-of-plane bending rigidity and impact resistance. Has impact. And it was possible to improve the sound insulation of the partition wall by using the gypsum board with high specific gravity.
- the gypsum board of the present invention is lead-free and has a radiation shielding function, is relatively lightweight, easy to handle, harmless to the human body, and can be constructed by screwing or the like. Easy to apply to. Therefore, by using the gypsum board of the present invention for a partition wall or the like, a dry construction method for shielding radiation has become possible. In addition, a radiation shielding facility was constructed using this method. In addition, a building material composition useful as a gap filler in the dry method for shielding radiation was obtained. BEST MODE FOR CARRYING OUT THE INVENTION
- composition for building materials of the present invention was prepared with the materials and blends shown in Table 2, and water was added and kneaded to prepare an X-ray shielding putty.
- the specific gravity of the solidified product is shown in the same table.
- a joint portion having a gap interval of 10 mm is formed, and the putty of Examples 1 to 3 is filled and solidified to obtain the lOOkV-15 mA, 125 kV of the X-ray irradiation apparatus. -12. 5mA and 150kV—When X-ray shielding measurement experiments were performed under each irradiation condition of 10mA, it was confirmed that the X-ray shielding performance was equivalent to or better than that of the gypsum board. In each of Examples 1 to 3, the lead equivalent was about 0.05 mmPb under the irradiation condition of lOOkV-15 mA per lmm thickness.
- Fluidity improver anti-freezing agent, force-proofing agent, etc.
- a gypsum plate having a thickness of 12.5 mm and a width of 910 mm was formed through a molding machine, roughly cut into a predetermined size, dried with a dryer, and cut into a length of 1820 mm to obtain a gypsum plate.
- the glass fiber used had a diameter of 20 microns and a length of 3.3 mm. It was mixed with calcined gypsum before being fed to the mixer, and the fiber surface was coated with calcined gypsum. Pulp fiber used was beaten waste paper.
- the water reducing agent used the melamine type water reducing agent.
- R1 is a comparative example, and a small amount of sodium alkylbenzene sulfonate was added as a foaming agent. The results of measuring the test items shown in Table 4 to be described later are also shown in Table 3.
- Example N 0 4 5 6 7 8 9 10 R1 Calcined gypsum 100 100 100 100 100 00 100 100 Aluminum oxide 120
- a slurry (gypsum slurry) was prepared using a mixer with the composition shown in Table 5, poured into two glass fiber tissues (glass mat nonwoven fabric), and a 12.5 mm thick gypsum plate was formed through a molding machine. . After drying, this was cut so that the side edges in the longitudinal direction and the side surfaces in the width direction were at right angles to obtain a plaster board.
- Example 11 and Comparative Example 2 the glass fiber tissue 1 was arranged so that both the upper and lower surfaces of the gypsum core were pressed, and in Example 12, it was embedded so as to embed approximately 1 mm from the upper and lower surfaces. Further, such a method for producing a glass fiber plaster board is described in JP-B-62-2433, JP-B-63-65482, JP-B-1-26845, and the like.
- the glass fiber used had a diameter of 20 microns and a length of 3.3 mm. It was mixed with calcined gypsum before being fed to the mixer, and the fiber surface was coated with calcined gypsum.
- As the water reducing agent a melamine type water reducing agent was used.
- R2 is a comparative example.
- a wall was formed by attaching one side to a lightweight steel base with a steady rest attached.
- the sound transmission performance (TL-Transmission Loss: unit decibel (dB)) from the sound source was measured for the sound insulation performance as a single wall.
- the gypsum plates of Examples 4, 8 and 11 have a frequency (coincidence frequency) force at which the sound insulation performance is reduced by resonance compared to the gypsum plates of Comparative Examples 1 and 2. Although it moved to a high sound, the sound insulation performance level of the gypsum board of the comparative example was improved from 20 to 24 for the sound insulation performance TL (Transmission Loss Difference).
- a joint part was prepared by joining the parts cut so that the edge side surface was perpendicular to the board surface, and the X-ray permeability of the part was measured.
- lOOkV corresponds to a 0.84 mm thick lead plate under 15 mA measurement conditions and a 0.46 mm thick lead plate under 150 kV—10 mA measurement conditions.
- Example 8 In the gypsum board prepared in Example 8, a joint part was created in which the parts covered with the base paper for board whose angle between the board surface and the edge side surface was 85 ° were in contact with each other, and the X-ray permeability of the part was made. When measured, it corresponded to a 0.77 mm thick lead plate under the lOOkV-15 mA measurement condition and a 0.33 mm thick lead plate under the 150 kV-10 mA measurement condition. This shows that X-rays are transmitted through the joint from the comparison with the result of Example 14! /
- the straight joint portion prepared in Reference Example 1 was filled with a putty prepared by adding water to the building material composition of Examples 1 to 3, and solidified, and the X-ray permeability of the portion was measured.
- the one using the putty was equivalent to a 0.85mm-thick lead plate under the lOOkV-15mA measurement condition and a 0.46mm-thick lead plate under the 150kV-10mA measurement condition.
- the plasterboard of Reference Example 2 was constructed with a single sheet on the four inner walls of a room of approximately 8.3 square meters with a mammography X-ray machine (mammography) installed.
- X-rays were continuously irradiated onto the phantom (pseudo X-ray irradiated object) under the conditions of 28 kV and 50 mAs, and the amount of X-ray leakage to the outside was measured with an ionization chamber survey meter. The result was “not detected” at all measurement points in the center and joints of the board.
- the two plasterboards of Reference Example 2 were installed on the four inner walls of an approximately 5.8 square meter room with an X-ray irradiation device for general radiography.
- X-rays were continuously irradiated to the phantom under the conditions of 80 kV and 32 mAs, and the amount of X-ray leakage to the outside was measured with an ionization chamber survey meter.
- X-ray irradiation was performed in two patterns: irradiation toward the wall surface and irradiation toward the floor surface. The result was “not detected” at all measurement points in the center and joints of the board. It was.
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
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- Laminated Bodies (AREA)
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Description
Claims
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800420317A CN101304959B (zh) | 2005-11-09 | 2006-09-29 | 建材用组合物、石膏板以及使用它们的施工技术和墙壁等 |
EP06810922.2A EP1947070B1 (en) | 2005-11-09 | 2006-09-29 | A wall, a partition, a ceiling or a floor comprising gypsum boards for shielding radioactive rays |
BRPI0618513-4A BRPI0618513B1 (pt) | 2005-11-09 | 2006-09-29 | Parede de separação seca compreendendo uma pluralidade de placas de gesso, método de construção a seco para blindagem de um raio radioativo e instalação de utilização de raio radioativo |
AU2006313300A AU2006313300B2 (en) | 2005-11-09 | 2006-09-29 | Composition for building material, plasterboard, and technique, wall, and the like employing or formed from these |
ES06810922.2T ES2691022T3 (es) | 2005-11-09 | 2006-09-29 | Una pared, una división, un techo o un suelo que comprenden tableros de yeso para la protección frente a rayos radioactivos |
CA2629708A CA2629708C (en) | 2005-11-09 | 2006-09-29 | Composition for building material, and gypsum board and construction method using them and wall and the like |
US12/092,853 US20100043344A1 (en) | 2005-11-09 | 2006-09-29 | Composition for building material, and gypsum board and construction method using them and wall and the like |
PL06810922T PL1947070T3 (pl) | 2005-11-09 | 2006-09-29 | Ściana, przegroda, sufit lub podłoga zawierające płyty gipsowe do ekranowania promieni radioaktywnych |
DK06810922.2T DK1947070T3 (en) | 2005-11-09 | 2006-09-29 | Wall, partition, ceiling or floor including plasterboard for shielding radioactive rays |
JP2007544074A JP5405745B2 (ja) | 2005-11-09 | 2006-09-29 | 建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等 |
NO20082665A NO345984B1 (no) | 2005-11-09 | 2006-09-29 | Sammensetning for bygningsmateriale, og gipsplate og konstruksjonsmetode ved anvendelse av dem og vegg og lignende |
HK08113939A HK1122788A1 (en) | 2005-11-09 | 2008-12-24 | Composition for building material, plasterboard, and technique, wall, and the like employing or formed from these |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-325017 | 2005-11-09 | ||
JP2005325017 | 2005-11-09 |
Publications (1)
Publication Number | Publication Date |
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WO2007055074A1 true WO2007055074A1 (ja) | 2007-05-18 |
Family
ID=38023081
Family Applications (1)
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PCT/JP2006/319543 WO2007055074A1 (ja) | 2005-11-09 | 2006-09-29 | 建材用組成物、及び石膏板並びにそれらを使用した工法及び壁等 |
Country Status (18)
Country | Link |
---|---|
US (1) | US20100043344A1 (ja) |
EP (1) | EP1947070B1 (ja) |
JP (1) | JP5405745B2 (ja) |
KR (2) | KR100984888B1 (ja) |
CN (1) | CN101304959B (ja) |
AU (1) | AU2006313300B2 (ja) |
BR (1) | BRPI0618513B1 (ja) |
CA (1) | CA2629708C (ja) |
DK (1) | DK1947070T3 (ja) |
ES (1) | ES2691022T3 (ja) |
HK (1) | HK1122788A1 (ja) |
HU (1) | HUE041507T2 (ja) |
NO (1) | NO345984B1 (ja) |
PL (1) | PL1947070T3 (ja) |
RU (1) | RU2393563C2 (ja) |
TR (1) | TR201819666T4 (ja) |
TW (1) | TWI473776B (ja) |
WO (1) | WO2007055074A1 (ja) |
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2006
- 2006-09-29 CA CA2629708A patent/CA2629708C/en active Active
- 2006-09-29 WO PCT/JP2006/319543 patent/WO2007055074A1/ja active Application Filing
- 2006-09-29 PL PL06810922T patent/PL1947070T3/pl unknown
- 2006-09-29 TR TR2018/19666T patent/TR201819666T4/tr unknown
- 2006-09-29 KR KR20087011204A patent/KR100984888B1/ko active IP Right Grant
- 2006-09-29 DK DK06810922.2T patent/DK1947070T3/en active
- 2006-09-29 EP EP06810922.2A patent/EP1947070B1/en not_active Revoked
- 2006-09-29 ES ES06810922.2T patent/ES2691022T3/es active Active
- 2006-09-29 HU HUE06810922A patent/HUE041507T2/hu unknown
- 2006-09-29 JP JP2007544074A patent/JP5405745B2/ja active Active
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- 2006-09-29 RU RU2008122969A patent/RU2393563C2/ru active
- 2006-09-29 CN CN2006800420317A patent/CN101304959B/zh active Active
- 2006-09-29 AU AU2006313300A patent/AU2006313300B2/en active Active
- 2006-09-29 KR KR1020107000524A patent/KR100984931B1/ko active IP Right Grant
- 2006-09-29 US US12/092,853 patent/US20100043344A1/en not_active Abandoned
- 2006-09-29 NO NO20082665A patent/NO345984B1/no unknown
- 2006-10-03 TW TW95136667A patent/TWI473776B/zh active
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2008
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Cited By (11)
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JP2010540292A (ja) * | 2007-10-05 | 2010-12-24 | クナウフ ギプス カーゲー | 硫酸カルシウム‐硫酸バリウムをベースとする建築ボードの製造方法 |
JP2009263217A (ja) * | 2008-03-31 | 2009-11-12 | A & A Material Corp | 石膏系成形体及びその製造方法 |
JP2010230311A (ja) * | 2009-03-25 | 2010-10-14 | Iken Engineering Kk | 放射線遮蔽扉の製造方法 |
CN102249635A (zh) * | 2011-05-12 | 2011-11-23 | 滕泽雄 | 一种灰钙板 |
JP2013184853A (ja) * | 2012-03-08 | 2013-09-19 | Giken Kogyo Kk | 放射線遮蔽ボード |
JP2014062741A (ja) * | 2012-09-19 | 2014-04-10 | Nippon Matai Co Ltd | 放射線の遮蔽方法 |
JP2014089127A (ja) * | 2012-10-30 | 2014-05-15 | Takenaka Komuten Co Ltd | 放射線遮蔽壁 |
CN108215386A (zh) * | 2018-04-10 | 2018-06-29 | 佛山市万善环保科技有限公司 | 一种防电磁辐射纸面石膏板及其制备方法 |
CN108215386B (zh) * | 2018-04-10 | 2021-01-26 | 泰山石膏(襄阳)有限公司 | 一种防电磁辐射纸面石膏板及其制备方法 |
JP2019189476A (ja) * | 2018-04-19 | 2019-10-31 | 株式会社竹中工務店 | 放射線遮蔽ボード及び放射線遮蔽ボードの製造方法 |
JP7014369B2 (ja) | 2018-04-19 | 2022-02-15 | 株式会社竹中工務店 | 放射線遮蔽ボード及び放射線遮蔽ボードの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
BRPI0618513A2 (pt) | 2011-09-06 |
TW200730466A (en) | 2007-08-16 |
US20100043344A1 (en) | 2010-02-25 |
CN101304959A (zh) | 2008-11-12 |
NO345984B1 (no) | 2021-12-06 |
NO20082665L (no) | 2008-08-05 |
EP1947070A1 (en) | 2008-07-23 |
HK1122788A1 (en) | 2009-05-29 |
RU2393563C2 (ru) | 2010-06-27 |
TWI473776B (zh) | 2015-02-21 |
AU2006313300A1 (en) | 2007-05-18 |
HUE041507T2 (hu) | 2019-05-28 |
JP5405745B2 (ja) | 2014-02-05 |
BRPI0618513B1 (pt) | 2021-11-30 |
ES2691022T3 (es) | 2018-11-23 |
KR100984888B1 (ko) | 2010-10-01 |
KR100984931B1 (ko) | 2010-10-01 |
TR201819666T4 (tr) | 2019-01-21 |
EP1947070A4 (en) | 2011-05-18 |
KR20100018062A (ko) | 2010-02-16 |
CA2629708A1 (en) | 2007-05-18 |
DK1947070T3 (en) | 2018-12-03 |
PL1947070T3 (pl) | 2019-05-31 |
KR20080053957A (ko) | 2008-06-16 |
AU2006313300B2 (en) | 2011-07-14 |
JPWO2007055074A1 (ja) | 2009-04-30 |
EP1947070B1 (en) | 2018-09-19 |
CA2629708C (en) | 2015-09-22 |
RU2008122969A (ru) | 2009-12-20 |
CN101304959B (zh) | 2012-09-05 |
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