专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE69424430T2 未知
公开(公告)号：DE69424430T2
公开(公告)日：2000-09-14
申请号：DE69424430
申请日：1994-07-29
申请人： KAWASAKI STEEL CO
发明人： TAKEMURA KAZUYA , SASHI KAZUMICHI , OGAWA TAICHI , WAKUI TADAHIRO , TAKANO SHIGERU
IPC分类号： C08F255/00
摘要： When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolefin containing either one of said radical-polymerizable monomer and the radical-polymerization initiator to the other. When said radical-polymerizable monomer is an unsaturated carboxylic anhydride, said unsaturated carboxylic anhydride as a starting material is preliminarily heated at 50 to 250 DEG C, and then fed to the grafting reaction mentioned above. When the monomer is an unsaturated carboxylic acid or an acid anhydride of such an unsaturated carboxylic acid, an organic peroxide of a formula (I) is used as the radical-polymerization initiator. In this formula (I), two substituting groups connected directly to the benzene ring have an ortho-positional relationship or a meta-positional relationship, R1, R2, R3, R4, R5 and R6 ,which are the same as or different from one another, each denote a hydrogen atom or an alkyl group having the number of carbons of 1 to 10.

2. 发明专利

DE69424430D1 未知
公开(公告)号：DE69424430D1
公开(公告)日：2000-06-15
申请号：DE69424430
申请日：1994-07-29
申请人： KAWASAKI STEEL CO
发明人： TAKEMURA KAZUYA , SASHI KAZUMICHI , OGAWA TAICHI , WAKUI TADAHIRO , TAKANO SHIGERU
IPC分类号： C08F255/00
摘要： When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolefin containing either one of said radical-polymerizable monomer and the radical-polymerization initiator to the other. When said radical-polymerizable monomer is an unsaturated carboxylic anhydride, said unsaturated carboxylic anhydride as a starting material is preliminarily heated at 50 to 250 DEG C, and then fed to the grafting reaction mentioned above. When the monomer is an unsaturated carboxylic acid or an acid anhydride of such an unsaturated carboxylic acid, an organic peroxide of a formula (I) is used as the radical-polymerization initiator. In this formula (I), two substituting groups connected directly to the benzene ring have an ortho-positional relationship or a meta-positional relationship, R1, R2, R3, R4, R5 and R6 ,which are the same as or different from one another, each denote a hydrogen atom or an alkyl group having the number of carbons of 1 to 10.

3. 发明公开

EP0713891A4 PROCESS FOR PRODUCING GRAFT POLYOLEFIN 失效
标题翻译：于制备接枝改性聚烯烃
公开(公告)号：EP0713891A4
公开(公告)日：1998-02-11
申请号：EP94921834
申请日：1994-07-29
申请人： KAWASAKI STEEL CO
发明人： TAKEMURA KAZUYA , SASHI KAZUMICHI , OGAWA TAICHI , WAKUI TADAHIRO , TAKANO SHIGERU
IPC分类号： C08F255/00
CPC分类号： C08F255/00 , C08F222/06
摘要： When producing a graft modified polyolefin by melting and kneading a polyolefin, a radical-polymerizable monomer and a radical-polymerization initiator, the producing efficiency is improved. The grafting reaction is effected by feeding the melted polyolefin containing either one of said radical-polymerizable monomer and the radical-polymerization initiator to the other. When said radical-polymerizable monomer is an unsaturated carboxylic anhydride, said unsaturated carboxylic anhydride as a starting material is preliminarily heated at 50 to 250 DEG C, and then fed to the grafting reaction mentioned above. When the monomer is an unsaturated carboxylic acid or an acid anhydride of such an unsaturated carboxylic acid, an organic peroxide of a formula (I) is used as the radical-polymerization initiator. In this formula (I), two substituting groups connected directly to the benzene ring have an ortho-positional relationship or a meta-positional relationship, R1, R2, R3, R4, R5 and R6 ,which are the same as or different from one another, each denote a hydrogen atom or an alkyl group having the number of carbons of 1 to 10.

4. 发明专利

JP2003168603A NON-ORIENTED MAGNETIC STEEL PLATE FOR MOTOR IRON CORE 审中-公开
公开(公告)号：JP2003168603A
公开(公告)日：2003-06-13
申请号：JP2001366105
申请日：2001-11-30
申请人： KAWASAKI STEEL CO
发明人： HONDA ATSUTO , TODA HIROAKI , SENDA KUNIHIRO , SADAHIRO KENICHI , SASHI KAZUMICHI
IPC分类号： B21B3/02 , C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16 , H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a non-oriented magnetic steel plate which makes a reluctance motor high in efficiency and produce less noises when it is used as an iron core for the reluctance motor. SOLUTION: A non-oriented magnetic steel plate has a composition which is so adjusted as to contain 0.0050 mass% or below C, 1.0 to 7.0 mass% Si, and 0.1 to 2.5 mass% Mn, a residual magnetic flux density Br 1.8 of 1.0T or below when it is magnetized up to 1.8T, and an iron loss W 15/800 (L+C) of 150 W/kg or below. Furthermore, a bonded coat whose thickness ranges from 1.0 to 20 μm (per each surface) is formed on each surface of the steel plate. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2002275640A METHOD FOR PRODUCING SILICON STEEL SHEET DEPOSITED WITH INSULATION FILM 失效
公开(公告)号：JP2002275640A
公开(公告)日：2002-09-25
申请号：JP2001076093
申请日：2001-03-16
申请人： KAWASAKI STEEL CO
发明人： SASHI KAZUMICHI , KOMORI YUKA , KONO MASAKI , HONDA ATSUTO
IPC分类号： B05D5/12 , B05D7/14 , B05D7/24 , B32B15/08 , C21D9/46 , C23C22/00 , C23C22/50 , H01F1/147 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a silicon steel sheet deposited with an insulation film in which the elution of Fe is suppressed, and whose appearance and film condition are made satisfactory even when an acidic water based coating film which does not substantially contain chromium compounds, and contains a resin and an inorganic colloid as components is applied and baked to a silicon steel sheet to deposit a thin insulation thin film thereon. SOLUTION: A water based coating solution of pH 2 to 7 containing a resin and an inorganic component is applied and baked to a silicon steel sheet to deposit an insulation film in which the amount of the film to be baked is , and the content of chromium is 0 to 1 mass% thereon. In this production method, the concentration of the solid contents in the water based coating solution is 10 to 30 mass%.

6. 发明专利

JP2002146492A LAMINATED SILICON STEEL SHEET HAVING EXCELLENT WORKABILITY 失效
公开(公告)号：JP2002146492A
公开(公告)日：2002-05-22
申请号：JP2000346579
申请日：2000-11-14
申请人： KAWASAKI STEEL CO
发明人： SASHI KAZUMICHI , KOMORI YUKA , KONDO OSAMU , KONO MASAKI , HONDA ATSUTO
IPC分类号： B05D7/14 , B32B15/08 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide a laminated silicon steel sheet having excellent shearing workability and hardly causing warp, peeling, etc., even if sheared into cores of small width and also having excellent workability. SOLUTION: The laminated silicon steel sheet having excellent workability is constituted by laminating two or more silicon steel sheets of =50 deg.C glass transition temperature or softening temperature are provided between the respective silicon steel sheets and to the respective surfaces of the silicon steel sheets on the outer sides, respectively.

7. 发明专利

JP2001279399A NONORIENTED SILICON STEEL SHEET EXCELLENT IN HIGH FREQUENCY MAGNETIC PROPERTY AND HAVING SUPERIOR ROLLING MANUFACTURABILITY 失效
公开(公告)号：JP2001279399A
公开(公告)日：2001-10-10
申请号：JP2000094384
申请日：2000-03-30
申请人： KAWASAKI STEEL CO
发明人： KONDO OSAMU , FUJITA AKIO , KOMORI YUKA , SASHI KAZUMICHI , KONO MASAKI
IPC分类号： C22C38/00 , C22C38/34 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a nonoriented silicon steel sheet for high frequency reactor, having particularly excellent magnetic properties in a frequency region of >=1 kHz. SOLUTION: This steel sheet has a composition which consists of, by mass, 2.5-10% Si, 1.5-20 mass % Cr and the balance Fe with inevitable impurities and in which the contents of C and N among the inevitable impurities are controlled to

8. 发明专利

JPH09267330A PRODUCTION OF LONG FIBER REINFORCED RESIN PELLET 失效
公开(公告)号：JPH09267330A
公开(公告)日：1997-10-14
申请号：JP7785896
申请日：1996-03-29
申请人： KAWASAKI STEEL CO
发明人： SASHI KAZUMICHI , TAKANO SHIGERU , IWASAKI HIDETO , NAKAMURA MASASHI
IPC分类号： B29B11/16 , B29B9/14
摘要： PROBLEM TO BE SOLVED: To produce a long fiber reinforced resin pellet of good quality wherein fiber bundles are sufficiently impregnated with a resin, by setting the number of monofilaments present in the bundled roving introduced into a die box to a specific number or less. SOLUTION: In a method for producing a long fiber reinforced resin pellet, the number of filaments present in the bundled roving introduced into a die box is set to 5000 or less to produce the long fiber reinforced resin pellet of good quality, wherein fiber bundles are sufficiently impregnated with a resin. The long fiber reinforced resin pellet is produced by an impregnation die for pultrusion. For example, as a matrix resin, a polypropylene(PP) homopolymer with a melt flow rate of 80g/10min is used and 10wt.% of maleic anhydride is added to the total amt. of PP.

9. 发明专利

JP2003166004A IRON-BASE POWDER AND POWDER MAGNETIC CORE USING THE SAME 审中-公开
公开(公告)号：JP2003166004A
公开(公告)日：2003-06-13
申请号：JP2001365578
申请日：2001-11-30
申请人： KAWASAKI STEEL CO
发明人： UEDA MASATERU , SASHI KAZUMICHI
IPC分类号： B22F1/02 , B22F3/24 , H01F1/22 , H01F1/24
摘要： PROBLEM TO BE SOLVED: To provide an iron-base powder having such a heat resistant insulating layer as not to be easily peeled even when the iron-base powder is pressure- formed, and further not to cause an electrical breakdown even when annealed in order to reduce a hysteresis loss, and provide a powder magnetic core using the same. SOLUTION: The iron-base powder has a coated film including an epoxy resin and alumina-containing silica, on the surface of a raw powder containing iron as a main component. The film preferably includes 3-300 pts.mass of alumina-containing silica in (alumina + silica) terms, with respect to 100 pts. mass of the epoxy resin. The powder magnetic core is made by means of annealing after compacting the coated iron-base powder into a predetermined shape. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2002260910A ELECTROMAGNETIC STEEL SHEET WITH INSULATING FILM OF GOOD ADHESION 失效
公开(公告)号：JP2002260910A
公开(公告)日：2002-09-13
申请号：JP2001054325
申请日：2001-02-28
申请人： KAWASAKI STEEL CO
发明人： SASHI KAZUMICHI , KOMORI YUKA , KONO MASAKI , HONDA ATSUTO
IPC分类号： B05D5/12 , B05D7/14 , B32B15/08 , C09J5/08 , C09J201/00 , H01F1/16 , H01F27/24
摘要： PROBLEM TO BE SOLVED: To provide electromagnetic steel sheets provided with insulating films which contain adhesive resin on their surfaces and can be bonded to the steel sheets by laminating and pressing while heating. SOLUTION: This electromagnetic steel plate has an insulation film formed at least on its one surface, and the insulation film contains adhesive resin and foaming agent. Foaming agent of 0.01 to 2 pts.mass and adhesive resin of 100 pts.mass are contained in the insulation film.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式