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1. 发明专利

JPH0748162A PRODUCTION OF ASBESTOS-FREE REFRACTORY ELECTRICAL RADIATION SHIELDING PLATE 失效
公开(公告)号：JPH0748162A
公开(公告)日：1995-02-21
申请号：JP5552593
申请日：1993-03-16
申请人： FUJI FUNEN KENZAI KOGYO KK , SUMITOMO FORESTRY
发明人： MATSUURA HARUSADA , SERIZAWA NORIO , OTA HITOSHI
IPC分类号： B28B1/52 , C04B14/10 , C04B14/30 , C04B14/34 , C04B14/36 , C04B22/02 , C04B22/04 , C04B22/06 , C04B28/08 , C04B111/12 , C04B111/28 , C04B111/94 , H05K9/00
摘要： PURPOSE:To provide production of an asbestos-free refractory electrical radiation shielding plate having sufficiently shielding properties of electrical radiation, etc., excellent moldability, water resistance, dimensional stability and strength free from harmful substances such as asbestos. CONSTITUTION:This production of an asbestos-free refractory electrical radiation shielding plate is carried out by blending 2-10wt.% of sepiolite with 15-60wt.% of metal powder (including oxide and hydroxide) and/or graphite, 5-10wt.% of fiber reinforcing material and 30-60wt.% of cement and granulated slag and subjecting the blend to wet type papermaking method (cylinder mold method or Fourdrinier wire method). The production of also done by blending 2-10wt.% of sepiolite with 15-60wt.% of metal powder (including oxide and hydroxide) and/or graphite, 5-10wt.% of fiber reinforcing material, 30-60wt.% of cement and granulated slag and 0.5-1.5wt.% of a thickening agent and extrusion molding.

2. 发明专利

JPH0862387A MANUFACTURE OF FIRE RESISTING X-RAY SHIELDING PLATE WITHOUT ASBESTOS 失效
公开(公告)号：JPH0862387A
公开(公告)日：1996-03-08
申请号：JP20262194
申请日：1994-08-26
申请人： SUMITOMO FORESTRY , FUJI FUNEN KENZAI KOGYO KK
发明人： OTA HITOSHI , MATSUURA SADAJI , SERIZAWA NORIO
IPC分类号： G21F1/04
摘要： PURPOSE: To manufacture a asbestos non-contained fire resisting X-ray shielding plate not containing asbestos by the wet manufacturing method of a mixed material containing barium sulfate by using a water-contained magnesia silicate mineral as component. CONSTITUTION: A water-contained magnesia silicate mineral allows the molding by wet manufacturing method of a mixed starting material containing barium sulfate. For this, sepiolite is particularly preferred among sepiolite, serpentinite and the like, and its content in the mixed starting material is 2-10wt.%. As the barium sulfate powder forming the main starting material, barite powder is used, and its content is 30-60wt.%. A metal carbonate powder is also used as a main starting material, and selected from the powder group consisting of nickel carbonate, strontium carbonate, and barium carbonate. Its content is 3-15wt.%. The content of cement and granulated stag for imparting shape holding property to a shielding plate and holding the strength is 30-50wt.%, and a reinforcing agent for the shielding plate selected from the group consisting of alkali-resistant glass fiber, synthetic organic fiber, and pulp is contained in the mixed starting material in an amount of 4-10wt.%.

3. 发明专利

JPH0769700A PRODUCTION OF REFRACTORY ARCHITECTURAL MATERIAL 失效
公开(公告)号：JPH0769700A
公开(公告)日：1995-03-14
申请号：JP21321893
申请日：1993-08-27
申请人： SHIGEKURA SUKEMITSU , FUJI FUNEN KENZAI KOGYO KK , SUMITOMO FORESTRY
发明人： SHIGEKURA SUKEMITSU , MATSUURA SADAJI , SERIZAWA NORIO , OTA HITOSHI
IPC分类号： C04B7/14 , C04B7/17 , C04B7/34 , C04B11/28 , C04B18/16 , C04B28/02 , C04B28/08 , C04B28/14 , C04B28/18 , C04B38/00 , C04B111/28 , E04F13/14
摘要： PURPOSE:To provide the process for production of the refractory architectural material capable of recycling gypsum board waste and inexpensively producing the refractory architectural material having excellent performance in a large amt. CONSTITUTION:This process for production of the refractory architectural material comprises pulverizing the gypsum board waste by a dry process or/and adding a proper amt. of moisture and surfactant to accelerate dissociation to the gypsum board waste and pulverizing the waste by a wet process, mixing 30 to 70 pts.wt. water granulated slag, 30 to 70 pts.wt. hydraulic material consisting of calcareous material, etc., and 2 to 15 pts.wt. fibrous material with 3 to 70 pts.wt. gypsum raw material which is the pulverized material formed in the manner described above, to prepare a slurry, and producing the refractory architectural material from the slurry by a wet type sheeting method or extrusion molding method.

4. 发明专利

JPH0214860A BUILDING MATERIAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0214860A
公开(公告)日：1990-01-18
申请号：JP16453788
申请日：1988-07-01
申请人： FUJI FUNEN KENZAI KOGYO KK
发明人： MATSUURA SADAJI , SERIZAWA NORIO , OTA HITOSHI , KISO MASAMITSU
IPC分类号： E04C2/04 , C04B14/38 , C04B28/22 , C04B111/12
摘要： PURPOSE:To improve the strength of a building material and the productivity of the material by adding sepiolite fiber and reinforcing fiber to a siliceous compound at specific weight ratios and using the mixture as a building material. CONSTITUTION:100 pts.wt. of a siliceous compound is mixed with 90-100 pts.wt of slaked lime, 5-10 pts.wt. of light aggregate, 1-10 pts.wt. of sepiolite fiber and 0.5-3 pts.wt. of reinforcing fiber to form an aqueous slurry. A sheet is formed from the slurry by paper-making method, extrusion forming or casting and the sheet is cured and hardened e.g., by autoclave (compression) curing process to obtain a building material. Since the sepiolite fiber has large specific surface area, i.e. sufficient void, the water-absorptivity and the dispensability in water are improved to improve the productivity of the material. The tensile strength of the product is increased by the presence of the prescribed amount of the reinforcing fiber. The strength of the building material and the workability in the production of the material are improved by the above process.

5. 发明专利

JPH0214859A BUILDING MATERIAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0214859A
公开(公告)日：1990-01-18
申请号：JP16453688
申请日：1988-07-01
申请人： FUJI FUNEN KENZAI KOGYO KK
发明人： MATSUURA SADAJI , SERIZAWA NORIO , OTA HITOSHI , KISO MASAMITSU
IPC分类号： E04C2/04 , C04B14/38 , C04B28/08 , C04B28/14 , C04B111/12
摘要： PURPOSE:To improve the strength of a building material and the workability in the production of the material by adding sepiolite fiber and reinforcing fiber to slag and gypsum at specific weight ratios and using the mixture as a building material. CONSTITUTION:100 pts.wt. of slag and gypsum are mixed with 1-3 pts.wt. of slaked lime, 5-10 pts.wt. of light aggregate, 1-13 pts.wt. of pulp, 1-10 pts.wt. of sepiolite fiber and 0.5-3 pts.wt. of reinforcing fiber composed of synthetic fiber, etc., and the mixture is mixed with water to form an aqueous slorry. A sheet is formed from the slurry by paper-making method, extrusion forming or casting and the sheet is cured and hardened to obtain a building material. Since the sepiolite fiber has large specific surface area, i.e. sufficient void, the particle-collecting performance in water and the water-absorptivity can be improved. The strength of the building material and the workability in the production of the material are improved by the reinforcing fiber existing in the material.

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