专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明公开

EP0638618A3 Magnetisches Tintenkonzentrat 失效
标题翻译：磁性油墨浓缩。
公开(公告)号：EP0638618A3
公开(公告)日：1997-07-16
申请号：EP94112335.8
申请日：1994-08-08
申请人： BASF Aktiengesellschaft
发明人： Kormann, Claudius, Dr. , Schwab, Ekkehard, Dr. , Sinn, Ekkehard, Dr. , Müller, Robert , Goernert, Peter, Prof. Dr.
IPC分类号： C09D11/00
CPC分类号： H01F1/44 , A61K49/1806 , G11B5/842
摘要： Beschrieben ist ein magnetisches Tintenkonzentrat, im wesentlichen bestehend aus einer Dispersion hartmagnetischer Feststoffteilchen in Wasser oder Alkohol in Gegenwart von Polyelektrolyten mit einem Molekulargewicht zwischen 1000 und 25000, ausgewählt aus der Gruppe von Polyacrylaten, Acrylsäure-/Acrylamid-Copolymeren und Polyvinylphosphonsäuren sowie der Alkalisalze dieser Verbindungen mit der Maßgabe, daß die magnetischen Pigmente eine spezifische Oberfläche von 70 bis 200 m 2 /g, eine Koerzitivkraft zwischen 10 und 500 kA/m sowie eine remanente Magnetisierung von über 10 nTm 3 /g aufweisen. Als Polyelektrolyte sind auch biologisch abbaubare Polykondensate aus organischen Hydroxycarbonsäuren, Alkoholen oder Acetalen anwendbar. Das magnetische Tintenkonzentrat läßt sich sehr einfach in einem Arbeitsgang herstellen.

72. 发明授权

EP0586052B1 Magnetic materials and method of preparation 失效
标题翻译：磁材料和制造工艺
公开(公告)号：EP0586052B1
公开(公告)日：1997-05-07
申请号：EP93305197.1
申请日：1993-07-02
申请人： XEROX CORPORATION
发明人： Ziolo, Ronald F.
IPC分类号： H01F1/37 , H01F1/00 , G03G9/083
CPC分类号： B82Y25/00 , F16C2206/04 , F16C2240/64 , G03G9/083 , G03G9/0833 , G03G9/0837 , G03G9/08791 , G03G9/12 , G03G9/13 , H01F1/0063 , H01F1/44 , H01F41/16 , Y10S428/90 , Y10T428/2991 , Y10T428/2998

73. 发明授权

EP0620772B1 MAGNETIC RECORDING MEDIA PREPARED FROM MAGNETIC PARTICLES HAVING AN EXTREMELY THIN, CONTINUOUS, AMORPHOUS, ALUMINUM HYDROUS OXIDE COATING 失效
标题翻译：磁记录介质中，磁性颗粒进行的，而且非常薄，连续，非晶铝水合氧化涂层
公开(公告)号：EP0620772B1
公开(公告)日：1996-09-11
申请号：EP93901286.0
申请日：1992-12-14
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： TRUONG, Jack, G. , WOOD, Thomas, E.
IPC分类号： B22F1/02 , H01F1/09 , H01F10/08
CPC分类号： H01F1/112 , B22F1/02 , G11B5/712 , H01F1/44 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/2991 , Y10T428/2998
摘要： In one aspect, the present invention concerns a process of making coated magnetic particles. According to this process, an aqueous sol of amorphous, hydrolyzed, aluminous, colloidal particles is mixed with an aqueous suspension comprising magnetic particles. The amorphous, hydrolyzed, aluminous, colloidal particles have a mean particle size in the range from about 0.5 to about 5 nanometers and an average degree of hydrolysis in the range from 1.5 to about 3. During mixing, the amorphous, hydrolyzed, aluminous, colloidal particles form a continuous, amorphous, aluminum hydrous oxide coating on the magnetic particles, wherein the coating has an average thickness in the range from about 0.5 to about 5 nanometers. The present invention also concerns coated magnetic particles. Coated magnetic particles according to the present invention comprise a magnetizable core and a continuous, amorphous, aluminum hydrous oxide coating formed on the magnetizable core. The coating has an average thickness in the range from about 0.5 to about 5 nanometers. In another aspect, the present invention concerns a magnetic recording medium comprising a magnetic layer formed on a nonmagnetizable support. The magnetic layer comprises the coated magnetic particles described above dispersed in a polymeric binder.

74. 发明公开

EP0686448A2 Preparation of ultrafine particles from water-in-oil microemulsions 失效
标题翻译： Präparationvon ultrafeinen Partikeln aus Wasser-in-ÖlMikroemulsionen
公开(公告)号：EP0686448A2
公开(公告)日：1995-12-13
申请号：EP95108726.1
申请日：1995-06-07
申请人： AUSIMONT S.p.A.
发明人： Chittofrati, Alba , Boselli, Viviana
IPC分类号： B22F9/26
CPC分类号： B82Y30/00 , B82Y25/00 , C01B13/328 , C01B17/20 , C01B32/60 , C01G49/06 , C01P2004/52 , C01P2004/64 , C01P2006/42 , H01F1/0054 , H01F1/44 , Y10S516/922
摘要： Process for preparing ultrafine inorganic particles of size lower than 50 nm, preferably lower than 10, with narrow size distribution, of metals, oxides, sulphides, carbonates by starting from microemulsions of water in a fluorinated oil, preferably a perfluoropolyether oil, containing metal ions in the aqueous phase and by reacting them with a reactant which is gaseous, or vapour, in the reaction conditions, for obtaining the above indicated compounds.
摘要翻译：通过从包含金属离子的氟化油，优选全氟聚醚油中的微乳液开始制备尺寸小于50nm，优选低于10，具有窄尺寸分布的金属，氧化物，硫化物，碳酸盐的超细无机颗粒的方法在水相中并通过它们与在反应条件下为气态或蒸气的反应物反应，以获得上述化合物。

75. 发明公开

EP0686447A2 Preparation of mixed ultrafine particles form PFPE microemulsion 失效
标题翻译： Präparationvon gemischten ultrafeinen Partikeln aus einer PFPE Mikroemulsion
公开(公告)号：EP0686447A2
公开(公告)日：1995-12-13
申请号：EP95108723.8
申请日：1995-06-07
申请人： AUSIMONT S.p.A.
发明人： Chittofrati, Alba , Boselli, Viviana
IPC分类号： B22F9/24
CPC分类号： B82Y30/00 , C01B13/328 , C01G49/0018 , C01P2004/52 , C01P2004/64 , H01F1/44 , Y10S516/922 , Y10S516/927
摘要： Process for preparing dispersions containing mixed oxides having particle size lower than or equal to 50 nm and having narrow size distribution, comprising the following steps:

P1) preparing a microemulsion of water in oil, the oil being a perfluoropolyether, said microemulsion being obtained using a perfluoropolyether surfactant, the aqueous phase consisting of a solution of an inorganic salt of a M1 metal;
P2) preparing a M2 metal salt of an anionic perfluoropolyether surfactant, such salt being soluble in the perfluoropolyether oil used in P1, the amount by moles of surfactant being such as to fully bind to the cation and so as not to be in excess;
P3) adding P2 to P1 for obtaining the reaction system containing the two metals M1 and M2; M1 in aqueous phase and M2 in perfluoropolyether oil phase;
P4) adding alkali solution to P3 with contemporaneous or subsequent heating, if P3 has not yet been heated, at the temperature necessary to form the desired oxide; then cooling and separating the aqueous supernatant;
M1 and M2 belong to the metals capable of giving oxides; when the two metals M1 and M2 have different valence, then M1 is the metal ion with lower valence, different from Fe(II), optionally in admixture with Fe(II), M2 is the metal ion with higher valence.
摘要翻译：制备含有粒度小于或等于50nm并具有窄尺寸分布的混合氧化物的分散体的方法，包括以下步骤：P1）制备油中的水微乳液，所述油为全氟聚醚，所述微乳液使用全氟聚醚表面活性剂，由M1金属的无机盐的溶液组成的水相; P2）制备阴离子全氟聚醚表面活性剂的M2金属盐，这种盐可溶于P1中使用的全氟聚醚油，表面活性剂的摩尔数与阳离子完全结合并且不会过量; P3）将P2加入到P1中以获得含有两种金属M1和M2的反应体系; M1在水相中，M2在全氟聚醚油相中; P4）在同时或随后加热的情况下，如果P3尚未加热，则在形成所需氧化物所需的温度下加入碱溶液; 然后冷却并分离含水上清液; M1和M2属于能够产生氧化物的金属; 当两种金属M1和M2具有不同的价态时，M1是与Fe（II）不同的低价金属离子，任选与Fe（II）混合，M2是具有较高价态的金属离子。

76. 发明授权

EP0517987B1 Procédé de préparation de dispersions aqueuses de particules de polymère magnétisable de distribution resserrée 失效
标题翻译：一种用于在具有verengerter大小分布的磁性聚合物颗粒的水分散体的制备过程。
公开(公告)号：EP0517987B1
公开(公告)日：1995-09-13
申请号：EP91420195.9
申请日：1991-06-14
申请人： SOCIETE PROLABO
发明人： Bibette, Jérôme , Schorsch, Gilbert , Charmot, Dominique
IPC分类号： C08J3/03 , C08F6/04
CPC分类号： C08J3/03 , H01F1/44 , Y10S530/812 , Y10S530/815 , Y10T428/2982 , Y10T428/2991 , Y10T428/2995

77. 发明公开

EP0644253A3 Dispersion particles for fluid having magnetic and electrorheological effects simultaneously and fluid using the same 失效
标题翻译：同时具有磁性和电流变效应的用于流体的分散颗粒和使用其的流体
公开(公告)号：EP0644253A3
公开(公告)日：1995-08-09
申请号：EP94114703.5
申请日：1994-09-19
申请人： NIPPON OIL Co. Ltd.
发明人： Sasaki, Makoto, c/o Nippon Oil Company Ltd. , Haji, Katsuhiko, c/o Nippon Oil Company Ltd.
IPC分类号： C10M171/00
CPC分类号： H01F1/44 , C10M171/001 , H01F1/447 , Y10S428/90 , Y10T428/2991 , Y10T428/2998
摘要： Dispersion particles for a fluid having magnetic and electrorheological effects simultaneously, which comprise conductive ferromagnetic particles whose surfaces are coated with an electrically insulating layer and a fluid used the same. The present fluid has a larger torque induced upon application of both a magnetic field and an electric field than that in a fluid having only magnetic or electrorheological effects and higher response speed than that in a fluid having only magnetic. Furthermore, in the present fluid current difficultly passes.
摘要翻译：用于同时具有磁性和电流变效应的流体的分散颗粒，其包括其表面涂覆有电绝缘层的导电铁磁颗粒以及使用其的流体。施加磁场和电场时，本流体具有比仅具有磁或电流变效应并且响应速度高于仅具有磁性的流体中的响应速度的流体中的更大的转矩。而且，目前的流体流动难以通过。

78. 发明公开

EP0638619A3 Magnetisches Tintenkonzentrat 失效
标题翻译：磁性油墨浓缩。
公开(公告)号：EP0638619A3
公开(公告)日：1995-05-10
申请号：EP94112338.2
申请日：1994-08-08
申请人： BASF Aktiengesellschaft
发明人： Kormann, Claudius, Dr. , Schwab, Ekkehard, Dr. , Funhoff, Angelika, Dr. , Boeckh, Dieter, Dr. , Kroner, Matthias, Dr.
IPC分类号： C09D11/00
CPC分类号： A61K49/1806 , G11B5/7013 , H01F1/44 , H01H2009/0077
摘要： Beschrieben sind magnetische Tintenkonzentrate, bestehend aus einer Dispersion superparamagnetischer oder hartmagnetischer Feststoffteilchen, welche in Wasser oder in Alkohol mit einer DK von ≧ 20 in Gegenwart dispergierender Substanzen vorliegen und wobei die dispergierenden Substanzen Polyelektrolyte sind, welche ein Molekulargewicht zwischen 500 und 100000 besitzen, die in der Hauptkette mindestens zwei gleiche oder verschiedene Heteroatome und in der Seitenkette mindestens drei freie Carbonsäuregruppen oder drei freie Aminogruppen enthalten. Derartige Polyelektrolyte sind leicht biologisch abbaubar. Diese Tintenkonzentrate haben günstige Eigenschaften, vor allen Dingen bezüglich Sedimentationsstabilität.

79. 发明公开

EP0546342A3 A self-metabolic functional material 失效
标题翻译：自我代谢功能材料
公开(公告)号：EP0546342A3
公开(公告)日：1993-09-08
申请号：EP92119453.6
申请日：1992-11-13
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Kishimoto, Yoshio
IPC分类号： B01J8/42 , B03C1/00 , B01D15/00 , B01J47/00 , B01D15/02 , B01J19/08 , B01J47/06 , B01J47/08
CPC分类号： H01F1/112 , B01D15/00 , B01J19/087 , B01J19/22 , B01J47/018 , B01J2219/0852 , B01J2219/0854 , H01F1/44
摘要： The present invention provides a self-metabolic functional material comprising a functional ferromagnetic particles dispersed in a fluid, each of the particles comprising a functional component and a chemically reactive ferromagnetic component with a characteristic of losing a ferromagnetism thereof by a chemical reaction proceeding with time, the functional ferromagnetic particles losing the ferromagnetism by the chemical reaction of the ferromagnetic component with time. The self-metabolic functional material has a desired function and gradually loses its function by being used. The degradation or loss of the function of the material can be detected by degradation or loss of ferromagnetism. By using such a material in the self-metabolic functional apparatus comprising a carrying means and a supply means, the self-metabolic functional material is self-metabolized as follows: The function of the self-metabolic functional material is degraded or lost, and at the same time the ferromagnetism is degraded or lost; and then the self-metabolic functional particles can not be carried on the carrying means. Fresh self-metabolic functional material comprising self-metabolic functional particles by either ferromagnetism and functionality, is carried on the carrying means by the supply means.
摘要翻译：本发明提供一种包含分散在流体中的功能性铁磁颗粒的自代谢功能材料，每个颗粒包含功能组分和化学反应性铁磁组分，其特征在于通过随时间的化学反应失去其铁磁性，功能性铁磁性颗粒通过铁磁性部件随时间的化学反应而失去铁磁性。自身代谢功能材料具有所需的功能，并通过使用而逐渐失去功能。材料的功能的降解或损失可以通过铁磁性的降解或损失来检测。通过在包含携带装置和供给装置的自代谢功能装置中使用这种材料，自身代谢功能材料如下自身代谢：自身代谢功能材料的功能降解或丧失，并且在铁磁同时退化或失落; 然后自代谢功能性颗粒不能携带在携带装置上。通过铁磁性和功能性的包含自身代谢功能性颗粒的新鲜的自代谢功能材料由供给装置承载在承载装置上。

80. 发明授权

EP0328497B1 Superparamagnetic liquid 失效
标题翻译：超级液体
公开(公告)号：EP0328497B1
公开(公告)日：1993-03-31
申请号：EP89850019.4
申请日：1989-01-24
申请人： SKF Nova AB
发明人： Lindsten, Göran , Wyman, John
IPC分类号： H01F1/28
CPC分类号： H01F1/44 , H01F1/442

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