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51. 发明专利

JPH07267724A SHAPE HAVING HIGH CONTENT OF SILICON DIOXIDE AND ITS PRODUCTION 失效
公开(公告)号：JPH07267724A
公开(公告)日：1995-10-17
申请号：JP27653794
申请日：1994-11-10
申请人： HERAEUS QUARZGLAS
发明人： SHIYUTEFUAN MOORITSUTSU , BUORUFUGANGU ENGURITSUSHIYU
IPC分类号： C03B20/00 , B22C9/12 , B28B1/26 , C03B19/06 , C03C3/06 , C03C11/00 , C03C17/02 , C04B33/28 , C04B35/14 , C30B35/00 , G01J1/42

52. 发明专利

JPH07223837A HEAT RESISTANT HOLLOW BEADS, ITS MANUFACTURING AND USE 失效
公开(公告)号：JPH07223837A
公开(公告)日：1995-08-22
申请号：JP33141894
申请日：1994-12-12
申请人： BAYER AG
发明人： BURUFU FUON BONIN
IPC分类号： E04B1/78 , C01B25/36 , C01B35/14 , C03B19/08 , C03C11/00 , C03C12/00 , C03C14/00 , C04B20/00 , C04B38/00 , C08K3/32 , C08K3/38 , C08K7/16 , C08K7/24 , C09D5/36 , C09D7/12 , C09D17/00 , C09K3/00 , C09K21/04

53. 发明专利

JPH0776112B2 失效
公开(公告)号：JPH0776112B2
公开(公告)日：1995-08-16
申请号：JP16373288
申请日：1988-06-30
申请人： ISHIZUKA GLASS
发明人： SHIMONO FUJIO , SONE SHIGEMI
IPC分类号： C03C11/00

54. 发明专利

JPH07215723A PRODUCTION OF GLASS 失效
公开(公告)号：JPH07215723A
公开(公告)日：1995-08-15
申请号：JP2364094
申请日：1994-01-26
申请人： SHIMANO NOBUHIRO
发明人： SHIMANO NOBUHIRO
IPC分类号： C03B15/00 , C03B19/00 , C03B19/02 , C03C11/00 , C03C23/00
摘要： PURPOSE:To easily produce perforated sheet glass, glass tubes, etc., having plural pieces of long holes by arranging pipes consisting of a material which is dissolved by reacting with an arbitrary dissolving chemical, pouring a glass melt therein to form a glass body integrally provided with these pipes and dissolving the pipes by the chemical. CONSTITUTION:The pipes 3 consisting of the material which is dissolved by reacting with the arbitrary dissolving chemical are arranged in a mold and the glass melt in a molten state is poured therein to form the glass body 7 integrally provided with the pipes 3. The pipes are dissolved by immersing the glass body 7 into the dissolving chemical for the pipes, by which the pipes are dissolved and the perforated glass body is obtd.

55. 发明专利

JPH07144934A HEAT RESISTANT SILICEOUS FOAMED BODY AND ITS PRODUCTION 失效
公开(公告)号：JPH07144934A
公开(公告)日：1995-06-06
申请号：JP29060293
申请日：1993-11-19
申请人： SHINETSU QUARTZ PROD
发明人： NAKAMURA TATSUMASA , FUJINOKI AKIRA , YOKOTA TORU
IPC分类号： C03B19/08 , C03C11/00 , C03C14/00
摘要： PURPOSE:To improve mechanical strength or the like necessary as a heat insulat ing material for a furnace for heat treating large-sized semiconductor wafers by chemically bonding nitrogen atom to a mixture of silica with a ceramic to obtain a high heat resistant siliceous foamed body. CONSTITUTION:A ceramic fine powder of one or more kinds selected from Al2O3, ZrO2, TiO2, B2O3 and SiC is added by 5-100 pts.wt. in a slurry obtained by suspending 100 pts.wt. silica fine particle made by the flame hydrolysis of silicon tetrachloride and having 2-20mum particle diameter in pure water and is aggitation to obtain a bard block silica coke. The caske is dried and pulverized and the obtained power is dipped in a concentrated hydrochloric acid at room temp., washed and dried. The siliceous foaming body containing 0.02-0.5wt.% nitrogen atom is obtained by feeding the powdery mixture to a furnace, heating at 700-1200 deg.C, in an ammoniacal atmosphere containing 1-100vol.% of an inert gas such as gaseous N2, allowing to react for 0.5-8 hours and chemically bonding ammonia to the siliceous component. Next, the siliceous foamed body is fed to a prescribed mold and heated at 1400-1800 deg.C to fuse and foam the powder.

56. 发明专利

JPH07138045A PRODUCTION OF HOLLOW GLASS BEAD 失效
公开(公告)号：JPH07138045A
公开(公告)日：1995-05-30
申请号：JP30467693
申请日：1993-11-09
申请人： NIPPON ELECTRIC GLASS CO
发明人： KAWACHI SHINJI , INADA KATSUMI , SATO YOSHIFUMI , NISHIMURA YASUHIRO
IPC分类号： C03B19/08 , C03C11/00 , C03C12/00
摘要： PURPOSE:To provide a production method for hollow glass beads, capable of producing hollow glass beads having a low apparent specific gravity even in the case of glass not containing an alkali component. CONSTITUTION:First a mixture of glass powder 11 and inorganic compound powder 12 having properties of decomposing and evolving a gas when heated is prepared. Then the mixture is heat-treated at such a temperature as not to completely decompose the inorganic compound to prepare a sintered material 10 of the glass powder 11 and the inorganic compound powder 12. Successively the sintered material 10 is ground and classified into a desired particle size distribution. Then, the prepared ground material 20 is supplied to an air flow having a temperature higher than that of the heat treatment to obtain hollow glass beads 30.

57. 发明专利

JPH0686312B2 失效
公开(公告)号：JPH0686312B2
公开(公告)日：1994-11-02
申请号：JP24408587
申请日：1987-09-30
IPC分类号： C03C11/00

58. 发明专利

JPH06227841A HOLLOW GLASS SPHERE 失效
公开(公告)号：JPH06227841A
公开(公告)日：1994-08-16
申请号：JP3943593
申请日：1993-02-03
申请人： TOKAI KOGYO CO LTD
发明人： ITO YOSHINORI
IPC分类号： C03C3/089 , C03C11/00 , C08J9/16 , C08K7/16 , C08K7/28
摘要： PURPOSE:To provide a glass hollow sphere simultaneously enabling an aging process and measurement of the viscosity of the product in the production of SMC by controlling the eluted alkali amount and water content of the glass hollow sphere. CONSTITUTION:The glass hollow sphere has an eluted alkali amount (Ywt.%) of 0.05-0.30 and a water content (Xwt.%) of the inequality. The glass hollow sphere preferably has the composition (wt.%) consisting of 68-72 of SiO2, 3-7 of Na2O, 0-2 of K2O, 0-2 of Li2O, 3-7 of all alkali metal oxides, 6-12 of CaO, 0-2 of MgO, 6-12 of all alkaline earth metal oxides, and 6-10 of B2O3, and is preferably produced by foaming glass frit having a viscosity of 320 poises at 1000-1200 deg.C.

59. 发明专利

JPH06166542A POROUS ARTICLE AND ITS PRODUCTION 失效
公开(公告)号：JPH06166542A
公开(公告)日：1994-06-14
申请号：JP32013592
申请日：1992-11-30
申请人： NIPPON SHEET GLASS CO LTD
发明人： KUME MAKOTO
IPC分类号： B01J29/06 , C03C11/00 , C03C13/00 , C04B38/00
摘要： PURPOSE:To provide a production method of a filter having homogeneous pore size with low pressure loss and a high permeability i.e., the production of a fiber layer filter having homogeneous pore size without flowing out of fibrils as in a usual fiber layer filter. CONSTITUTION:Water is added to a mixture consisting of 25-90wt.% sepiolite and the rest, heat resistant fibers, and the total is mixed with stirring or kneaded, molded and dried, then sintered at 550-900 deg.C for 10min.-2hrs. to obtain a porous article.

60. 发明专利

JPH0639336B2 失效
公开(公告)号：JPH0639336B2
公开(公告)日：1994-05-25
申请号：JP1070786
申请日：1986-01-21
IPC分类号： C03C3/087 , C03C3/091 , C03C11/00

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