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1. 发明专利

JPH047330B2 失效
公开(公告)号：JPH047330B2
公开(公告)日：1992-02-10
申请号：JP22316483
申请日：1983-11-29
申请人： SHOWA DENKO KK
发明人： TAKAYAMA SHIGERU , MEIRAKU FUMIO , TAKAICHI AKIRA , KAWASAKI HIROAKI
IPC分类号： C07C17/16 , B01J27/00 , B01J27/132 , C07B61/00 , C07C17/00 , C07C19/08 , C07C67/00

2. 发明专利

JPH02125405A RARE EARTH ELEMENT-IRON PERMANENT MAGNET 失效
公开(公告)号：JPH02125405A
公开(公告)日：1990-05-14
申请号：JP28865088
申请日：1988-11-15
申请人： SHOWA DENKO KK
发明人： MEIRAKU FUMIO , MINAMI SEIICHIRO , TAGUCHI ISAMU , TERAO TATSU , TAKAHASHI ICHITA
IPC分类号： H01F7/02
摘要： PURPOSE:To prevent variation in dimensional accuracy and deterioration in magnetic properties for a long period of time by treating the surface of a rare earth element-iron permanent magnet with coating agent whose effective ingredient are titanium compounds fluorine-containing alkyl groups. CONSTITUTION:A rare earth element-iron permanent magnet is of permanent magnet powder or molded form for plastic magnet after iron-rare earth element, iron-transmission metal-rare earth element and boron are added and sintered and molded in a predetermined shape. Coating agent contains titanium compounds whose effective ingredients are fluorine-containing alkyl groups represented by general formulae I-III, VII, VIII and hydrated condensation polymer of compound represented by a formula I. In the formula Rf is 4-16C fluorine-containing alkyl group, R1 is H or 1-10C alkyl group, l is integer number of 1-4, R2 is formula CaF2a+1-Q-, where a is integer number of 4-20, and Q is coupling group of CaF2a+1- and oxygen. m is integer number of 1-2, n is integer number of 1-3, A is 1-12C alkyl group, B is 1,2 or 1,3-glycol group or oxycarbonic acid group, using solution or emulsion of these compounds.

3. 发明专利

JPS60115538A PRODUCTION OF FLUOROMETHANE 失效
公开(公告)号：JPS60115538A
公开(公告)日：1985-06-22
申请号：JP22316583
申请日：1983-11-29
申请人： SHOWA DENKO KK
发明人： TAKAYAMA SHIGERU , MEIRAKU FUMIO , TAKAICHI AKIRA , KAWASAKI HIROAKI
IPC分类号： C07C17/16 , B01J27/00 , B01J27/125 , C07B61/00 , C07C17/00 , C07C19/08 , C07C67/00
摘要： PURPOSE:To produce the titled compound in high yield, by the vaporphase reaction of methyl alcohol with hydrogen fluoride at a specific temperature, using a catalyst comprising aluminum fluoride or a catalyst obtained by forming a mixture of aluminum fluoride and a carrier or by supporting aluminum fluoride on a carrier. CONSTITUTION:A fluoromethane is produced by the vapor-phase reaction of methyl alcohol with hydrogen fluoride at 100-500 deg.C, especially 150-350 deg.C, using a catalyst comprising aluminum fluoride or obtained by forming a mixture of aluminum fluoride and a carrier (preferably activated carbon) or supporting aluminum fluoride on a carrier. The aluminum fluoride is preferably the one obtained by the fluorination of an aluminum compound.

4. 发明专利

JPS60115537A PRODUCTION OF FLUOROMETHANE 失效
公开(公告)号：JPS60115537A
公开(公告)日：1985-06-22
申请号：JP22316483
申请日：1983-11-29
申请人： SHOWA DENKO KK
发明人： TAKAYAMA SHIGERU , MEIRAKU FUMIO , TAKAICHI AKIRA , KAWASAKI HIROAKI
IPC分类号： C07C17/16 , B01J27/00 , B01J27/132 , C07B61/00 , C07C17/00 , C07C19/08 , C07C67/00
摘要： PURPOSE:To produce the titled compound, by the vapor-phase reaction of methyl alcohol with hydrogen fluoride at a specific temperature, using a catalyst comprising chromium fluoride or a catalyst obtained by forming a mixture of chromium fluoride and a carrier or by supporting chromium fluoride on a carrier. CONSTITUTION:A fluoromethane is produced by the vapor-phase reaction of methyl alcohol with hydrogen fluoride at 100-500 deg.C, especially 150-350 deg.C, using a catalyst comprising chromium fluoride or obtained by forming a mixture of chromium fluoride and a carrier (preferably activated carbon) or supporting chromium fluoride on a carrier. The chromium fluoride is chromium trifluoride or a product obtained by the fluorination of chromium oxide, chromium hydroxide, chromium chloride, etc. EFFECT:The objective compound can be produced in high yield. USE:Useful in the field of semiconductor industry.

5. 发明专利

JPH047331B2 失效
公开(公告)号：JPH047331B2
公开(公告)日：1992-02-10
申请号：JP22316583
申请日：1983-11-29
申请人： SHOWA DENKO KK
发明人： TAKAYAMA SHIGERU , MEIRAKU FUMIO , TAKAICHI AKIRA , KAWASAKI HIROAKI
IPC分类号： C07C17/16 , B01J27/00 , B01J27/125 , C07B61/00 , C07C17/00 , C07C19/08 , C07C67/00

6. 发明专利

JPH01279983A FLUORINATED TITANATE COATING AGENT 失效
公开(公告)号：JPH01279983A
公开(公告)日：1989-11-10
申请号：JP10919088
申请日：1988-05-06
申请人： SHOWA DENKO KK
发明人： TAGUCHI ISAMU , SHIMA SHIZUO , TERAO TATSU , MEIRAKU FUMIO
IPC分类号： C09D5/00 , C09D185/00
摘要： PURPOSE:To obtain the title coating agent excellent in adhesiveness to various base materials and used to impart water and oil repellency, stainproofness, non-tackiness, lubricity, etc. to a base material surface by using a specified fluorinated titanate as the constituent. CONSTITUTION:A fluorinated titanate of formula I [wherein R is polyfluoroalkyl or formula II; a is 4-20; -Q- is a group that links a polyfluorocarbon group CaF2a+1 to an oxygen atom and is -CbH2b-, or of formula III, IV or V (wherein b is 1-10; R' is 1-6C alkyl or H); n is 1-2; m is 1-3; A is 1-12C alkyl] is used as the effective constituent to give the title coating agent. This coating agent is used to impart water and oil repellency, stainproofness, non-tackiness, lubricity, etc., to a surface of an inorganic or organic base material.

7. 发明专利

JPS6063904A MANUFACTURE OF ACICULAR MAGNETIC POWDER COMPOSED PRIMARILY OF IRON 失效
公开(公告)号：JPS6063904A
公开(公告)日：1985-04-12
申请号：JP17058383
申请日：1983-09-17
申请人： SHOWA DENKO KK
发明人： OKAZAKI KENICHI , NAKAYAMA HIDETOSHI , MEIRAKU FUMIO
IPC分类号： H01F1/06 , B22F9/22 , C09D5/23 , C09D7/12 , G11B5/706 , G11B5/84
摘要： PURPOSE:To give high coercive force to a surface of a metal compound by covering the surface of the metal compound with a compound of amphoteric oxides composed primarily of Sn , heating it after moreover covering it with silicate gel, and reducing it by hydrogen to enhance the above effect sufficiently under low temperature heating. CONSTITUTION:Strong alkali suspension of metal compound powder composed primarily of reduced oxy-iron hydroxide or iron oxide is added with alkaline solution composed primarily of Sn . Acid is added to it to adjust it into light alkaline and then the surface of acicular powder is covered with hydroxide composed primarily of Sn(OH)4. Next, this supension is added with water-soluble silicate aqueous salt water to adjust pH using acid. By this, the surface of acicular powder is doubly coated with hydroxide composed primarily of Sn(OH)4 and silicate gel. After the obtained metal compound powder is heated at 500- 800 deg.C, it is reduced by hydrogen at 400-600 deg.C to obtain magnetic powder having strong coercive force.

8. 发明专利

JPS63254721A FORMING METHOD FOR HYDROGENATED AMORPHOUS SILICON 失效
公开(公告)号：JPS63254721A
公开(公告)日：1988-10-21
申请号：JP8887387
申请日：1987-04-13
申请人： SHOWA DENKO KK
发明人： KITSUNO YUTAKA , MEIRAKU FUMIO
IPC分类号： G03G5/08 , C23C16/24 , C23C16/30 , C23C16/50 , H01L21/205 , H01L31/04
摘要： PURPOSE:To obtain hydrogenated amorphous silicon (a-Si:H) having preferable characteristics by means of chemical vapor reaction by using as reactive gas with silane gas nitrogen trifluoride gas. CONSTITUTION:When silane gas represented by a formula SinH2n+2 (where, n is integer number of n>=1) is deposited by chemical vapor reaction on a substrate base, NF3 is used as reactive gas. The silane gas used as a material includes monosilane (SiH4), disilane (Si2H6), trisilane (SiH8), tetrasilane (SiH10), etc. The monosilane and disilane are preferable from the view point of their easy handling. Thus, a-Si:H having high optical sensitivity represented by optical electric conductivity/dark electric conductivity is obtained.

9. 发明专利

JPS62219914A FORMATION OF HYDROGENATED AMORPHOUS SILICON FILM 失效
公开(公告)号：JPS62219914A
公开(公告)日：1987-09-28
申请号：JP6268486
申请日：1986-03-20
申请人： SHOWA DENKO KK
发明人： KITSUNO YUTAKA , TAZAWA SHOICHI , MEIRAKU FUMIO
IPC分类号： H01L21/205 , C01B33/04 , C23C16/30 , G03G5/08 , H01L31/04
摘要： PURPOSE:To realize formation of a-Si:H which shows low Eg and assures high photosensitivity using only high order silane without using expensive gas such as germane by setting the total pressure to a value lower than the atmospheric pressure under the reduction by H2 on the occasion of depositing element on a substrate by thermal decomposition of high order silane expressed by general expression of SinH2n+2. CONSTITUTION:As a high order silane uses as the raw material, disilane, trisilane and tetrasilane which can be processed easily are desirable. The reduction coefficient of H2 is defined as 1

10. 发明专利

JPS60116637A PREPARATION OF FLUOROMETHANE 失效
公开(公告)号：JPS60116637A
公开(公告)日：1985-06-24
申请号：JP22466883
申请日：1983-11-29
申请人： SHOWA DENKO KK
发明人： TAKAYAMA SHIGERU , MEIRAKU FUMIO , TAKAICHI AKIRA , KAWASAKI HIROAKI
IPC分类号： C07C17/16 , B01J27/00 , B01J27/132 , C07B61/00 , C07C17/00 , C07C19/08 , C07C67/00
摘要： PURPOSE:To obtain fluoromethane useful in the field of semiconductor, etc. selectively in high yield, by reacting methyl alcohol with hydrogen fluoride by the use of a catalyst consisting essentially of chromium fluoride and aluminum fluoride under specific temperature conditions in a gaseous phase. CONSTITUTION:Methyl alcohol is reacted with hydrogen dluoride by the use of a catalyst consisting of chromiun fluoride and aluminum fluoride, or obtained by blending them with a powdery carrier such as active carbon, etc., molding the blend, or supporting them on the carrier, at 100-500 deg.C, especially at 150-350 deg.C, to give fluoromethane (flon 41) industrially advantageously. Trifluorides are preferable as the chromium fluoride and aluminum fluoride, and a chromium compound except the fluoride and an aluminum compound may be fluorinated and used.

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