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1. 发明授权

US3959032A Magnetic materials with exchange anisotropy and process for their manufacture 失效
标题翻译：具有交换各向异性的磁性材料及其制造方法
公开(公告)号：US3959032A
公开(公告)日：1976-05-25
申请号：US535577
申请日：1974-12-23
申请人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Dieter Graw , Karl Uhl , Werner Steck
发明人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Dieter Graw , Karl Uhl , Werner Steck
IPC分类号： G11B5/62 , C09D5/23 , C09D7/12 , G11B5/706 , H01F1/06 , H01F1/09 , H01F1/33
CPC分类号： H01F1/09 , G11B5/70621 , H01F1/0009
摘要： Magnetic materials which essentially consist of a phase A with a ferromagnetic spin system and a phase B with an anti-ferromagnetic spin system, phases A and B interacting by exchange coupling, and the manufacture of such materials. The materials consist essentially of two-phase magnetic single-domain particles, with the alloy [Co.sub.x Ni.sub.1.sub.-x ] as the ferromagnetic phase A and its oxidized form [(CoO).sub.x (NiO).sub.1.sub.-x ] as the anti-ferromagnetic phase B, with values of x of 0.04 to 0.96. They are manufactured by surface oxidation of a pigment layer, which at least covers the surface but may extend deeper, having the composition of phase A, to form an oxide layer, at least 40 A thick, of the phase B, followed by heating in an inert gas atmosphere, or by reduction of a corresponding layer of phase B to a layer of phase A. Magnetic single-domain particles of this composition have a Neel temperature which varies with X. As a result, materials are obtained which have an asymmetrical hysteresis loop, attributable to exchange anisotropy, at temperatures which can be varied within wide limits in accordance with the intended use of the material.
摘要翻译：磁性材料基本上由具有铁磁自旋系统的相A和具有反铁磁旋转系统的相B组成，A相和B相通过交换耦合相互作用，并且制造这种材料。这些材料基本上由两相磁性单畴粒子组成，合金[CoxNi1-x]作为铁磁相A，其氧化形式[（CoO）x（NiO）1-x]作为反铁磁相B ，值x为0.04至0.96。它们通过颜料层的表面氧化制造，颜料层至少覆盖表面但可以延伸得更深，具有相A的组成，以形成相B的至少40μA的氧化物层，随后加热惰性气体气氛，或通过将相B的相应层减少到相A层。该组合物的磁性单畴颗粒具有随X变化的Neel温度。结果，获得具有不对称性的材料可归因于交换各向异性的磁滞回线，其温度可以根据材料的预期用途在宽范围内变化。

2. 发明授权

US3961990A Manufacture of magnetic materials which exhibit exchange anisotropy 失效
标题翻译：磁性材料的制造交付交易
公开(公告)号：US3961990A
公开(公告)日：1976-06-08
申请号：US535578
申请日：1974-12-23
申请人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Karl Uhl , Werner Stumpfi , Werner Steck
发明人： Eberhard Koester , Gerd Wunsch , Paul Deigner , Karl Uhl , Werner Stumpfi , Werner Steck
IPC分类号： G11B5/62 , C04B35/26 , C09D5/23 , C09D7/12 , H01F1/04 , H01F1/06 , H01F1/09 , H01F1/12
CPC分类号： C04B35/2666 , H01F1/0009 , H01F1/04 , H01F1/09 , H01F1/12
摘要： A process for the manufacture of magnetic materials containing a phase A with a ferromagnetic spin system, of composition Co.sub.x Ni.sub.1.sub.-x and a phase B with an antiferromagnetic spin system of composition (CoO).sub.x (NiO).sub.1.sub.-x , with values of x from 0.05 to 0.96, the phases A and B showing exchange interaction. The materials are manufactured by surface oxidation of starting materials having a ferromagnetic layer, at least on the surface but optionally extending deeper, of composition A, to produce the antiferromagnetic phase B, nitrous oxide being used as the oxidant. Magnetic materials thus obtained have an asymmetrical hysteresis loop, which manifests itself at different temperatures, namely the particular Neel temperature of the phase B, which depends on the composition of the phases which varies in accordance with the values of x.

3. 发明授权

US4272563A Manufacture of magnetic recording media having a wear-resistant surface 失效
标题翻译：具有耐磨表面的磁记录介质的制造
公开(公告)号：US4272563A
公开(公告)日：1981-06-09
申请号：US765159
申请日：1977-02-03
申请人： Werner Steck , Werner Loeser , Manfred Steuerwald , Gerd Wunsch , Paul Deigner
发明人： Werner Steck , Werner Loeser , Manfred Steuerwald , Gerd Wunsch , Paul Deigner
IPC分类号： G11B5/64 , G11B5/72 , G11B5/84 , G11B5/858 , B05D5/12
CPC分类号： G11B5/72 , G11B5/84
摘要： A process for the manufacture of wear-resistant magnetic recording media comprising a dimensionally stable base, a thin ferromagnetic metal layer, containing cobalt and/or nickel, firmly bonded thereto and a thin protective layer applied thereon. The protective layer is produced by treating the recording medium in a liquid basic medium, containing gaseous oxygen, for from 1 to 60 minutes at from 5.degree. to 70.degree. C., washing and drying the treated recording medium and then heating it in air at from 170.degree. to 300.degree. C. This method offers a particularly simple way of providing the ferromagnetic layer of the recording medium with a thin but uniform, mechanically stable and wear-resistant protective layer.
摘要翻译：一种用于制造耐磨磁记录介质的方法，其包括尺寸稳定的基底，与包含钴和/或镍的薄的铁磁金属层，其牢固地结合到其上并施加有薄的保护层。保护层通过在含有气态氧的液体碱性介质中在5至70℃下处理记录介质1至60分钟来制备，洗涤和干燥经处理的记录介质，然后在空气中加热从170℃到300℃。该方法提供了一种特别简单的方式来提供记录介质的铁磁层，其具有薄而均匀的机械稳定且耐磨的保护层。

4. 发明授权

US3993807A Activation of substrates for electroless metallization with zero valent palladium complex 失效
标题翻译：用零价钯络合物激活用于无电金属化的衬底
公开(公告)号：US3993807A
公开(公告)日：1976-11-23
申请号：US625657
申请日：1975-10-24
申请人： Joachim Stabenow , Gerd Wunsch , Paul Deigner , Franz-Josef Mueller , Werner Loeser , Werner Steck
发明人： Joachim Stabenow , Gerd Wunsch , Paul Deigner , Franz-Josef Mueller , Werner Loeser , Werner Steck
IPC分类号： C07F15/00 , C23C18/30 , C23C3/02 , B05D3/02
CPC分类号： C23C18/30 , C07F15/006
摘要： A process for metallizing substrates by activation of the substrate by deposition of palladium from a palladium complex, followed by electroless metallization. The palladium is deposited on the substrate by dipping the substrate into a solution of a palladium(O) complex and decomposing this complex at from 100.degree. to 300.degree. C.With this method it is possible to effectively activate substrates which are attacked by acid or alkali or swollen by organic solvents.
摘要翻译：一种用于通过从钯络合物中沉积钯，然后进行化学镀金属来活化衬底来金属化衬底的方法。通过将底物浸入钯（O）络合物的溶液中并在100℃至300℃下分解该络合物，将钯沉积在基材上。

5. 发明授权

US4128672A Process of making a magnetic recording medium 失效
标题翻译：制造磁记录介质的过程
公开(公告)号：US4128672A
公开(公告)日：1978-12-05
申请号：US625659
申请日：1975-10-24
申请人： Gerd Wunsch , Paul Deigner , Roland Falk , Karl Mahler , Werner Loeser , Friedrich Domas , Peter Felleisen , Werner Steck
发明人： Gerd Wunsch , Paul Deigner , Roland Falk , Karl Mahler , Werner Loeser , Friedrich Domas , Peter Felleisen , Werner Steck
IPC分类号： C23C28/00 , C23C30/00 , G11B5/708 , G11B5/84 , G11B5/858 , H01F41/14 , H01F10/00
CPC分类号： G11B5/84 , G11B5/7085 , H01F41/14
摘要： A process for the manufacture of rigid magnetic recording media by depositing a cobalt-containing ferromagnetic metal layer on a non-magnetic metallic base disc provided with a cured layer of binder which does not dissolve or swell in organic solvents and contains non-magnetic pigments, and which has been activated, before deposition of the ferromagnetic layer, by treatment with a solution of a palladium (O) complex in an organic solvent, followed by decomposition of this complex, to prepare it to receive the ferromagnetic metal layer which is produced by electroless deposition.
摘要翻译：一种用于制造刚性磁记录介质的方法，该方法是在一个非磁性金属基盘上沉积一种含钴铁磁性金属层，该非磁性金属基盘具有不溶于或在有机溶剂中溶解或溶胀并含有非磁性颜料的固化粘结层，并且在沉积铁磁层之前，通过用钯（O）络合物在有机溶剂中的溶液处理，然后分解该络合物，使其被激活，以使其接收由以下产生的铁磁金属层：由无电沉积

6. 发明授权

US4221776A Manufacture of acicular ferrimagnetic iron oxides 失效
标题翻译：针状亚铁磁性氧化铁的制造
公开(公告)号：US4221776A
公开(公告)日：1980-09-09
申请号：US6528
申请日：1979-01-25
申请人： Horst Autzen , Helmut Jakusch , Eberhard Koester , Werner Loeser , Peter Rudolf , Wilhelm Sarnecki , Werner Steck
发明人： Horst Autzen , Helmut Jakusch , Eberhard Koester , Werner Loeser , Peter Rudolf , Wilhelm Sarnecki , Werner Steck
IPC分类号： C01G49/06 , G11B5/706
CPC分类号： C01G49/06 , G11B5/70642 , G11B5/70647 , G11B5/70652 , G11B5/70684 , G11B5/70694 , C01P2004/10 , C01P2006/12 , C01P2006/42
摘要： A process for the manufacture of acicular ferrimagnetic iron oxide by reducing heat-treated acicular iron(III) oxide hydroxide with an organic compound which decomposes in the presence of iron oxide at from 450.degree. to 650.degree. C., followed by at least partial oxidation with an oxygen-containing gas at from 200.degree. to 500.degree. C., wherein the iron(III) oxide hydroxide employed is heat-treated at from 450.degree. to 700.degree. C. and has a surface area, measured by the BET method, of from 10 to 23 m.sup.2 /g.
摘要翻译：一种通过用450℃至650℃在氧化铁存在下分解有机化合物的热处理的针状铁（III）氢氧化物还原热处理的针状铁磁性氧化铁的方法，然后至少部分氧化与含氧气体在200-500℃下反应，其中使用的氧化铁（III）氢氧化物在450-700℃下进行热处理，并且通过BET法测量的表面积，为10至23m2 / g。

7. 发明授权

US4188302A Manufacture of acicular cobalt-modified magnetic iron oxide 失效
标题翻译：针状钴改性磁性氧化铁的制造
公开(公告)号：US4188302A
公开(公告)日：1980-02-12
申请号：US872262
申请日：1978-01-25
申请人： Hans-Juergen Becker , Christof Jaeckh , Eberhard Koester , Werner Loeser , Manfred Ohlinger , Werner Steck
发明人： Hans-Juergen Becker , Christof Jaeckh , Eberhard Koester , Werner Loeser , Manfred Ohlinger , Werner Steck
IPC分类号： C01G49/02 , C01G49/00 , C01G49/06 , G11B5/706 , H01F1/11
CPC分类号： C01G49/06 , G11B5/70663 , G11B5/70673 , G11B5/70694 , C01P2002/54 , C01P2004/10 , C01P2006/10 , C01P2006/42
摘要： A process for the manufacture of an acicular magnetic iron oxide containing from 0.5 to 10 percent by weight of cobalt and up to 24 percent by weight of divalent iron, each based on the amount of iron(III) oxide, wherein an aqueous suspension of gamma-iron(III) oxide, containing cobalt(II) and iron(II) ions, the suspension having a hydroxyl ion concentration of more than 3.6.times.10.sup.-6 moles/liter, is heated at from 50.degree. to 100.degree. C. for at least 15 minutes, and the resulting precipitate is filtered off, washed until neutral, dried at below 100.degree. C. and thereafter heated at from 100.degree. to 200.degree. C.The products thus obtained give, even when their cobalt content is low, a very high coercive force, while the effect of temperature on the coercive force and residual induction is very slight.
摘要翻译：一种用于制造针状磁性氧化铁的方法，其含有0.5至10重量％的钴和至多24重量％的二价铁，每个基于氧化铁（III）的量，其中γ 氧化铁（III），含有钴（II）和铁（II）离子，羟基离子浓度大于3.6×10 -6摩尔/升的悬浮液在50℃至100℃下加热至至少15分钟，滤出所得沉淀物，洗涤至中性，在100℃以下干燥，然后在100〜200℃下加热。由此得到的产物即使在钴含量低的情况下也能得到矫顽力非常高，而温度对矫顽力和残余感应的影响非常小。

8. 发明授权

US4165232A Manufacture of ferromagnetic metal particles essentially consisting of iron 失效
标题翻译：主要由铁组成的铁磁性金属颗粒的制造
公开(公告)号：US4165232A
公开(公告)日：1979-08-21
申请号：US942656
申请日：1978-09-15
申请人： Christof Jaeckh , Werner Steck , Rudolf Brodt , Manfred Ohlinger , Werner Loeser , Eberhard Koester
发明人： Christof Jaeckh , Werner Steck , Rudolf Brodt , Manfred Ohlinger , Werner Loeser , Eberhard Koester
IPC分类号： H01F1/06 , C22C1/04
CPC分类号： H01F1/065 , H01F1/061 , Y10S428/90
摘要： A process for the manufacture of acicular ferromagnetic metal particles which essentially consist of iron and carry, on their surface, from 0.02 to 0.6% by weight of boron in the form of a borate, by reducing an acicular iron oxide with a gaseous reducing agent at from 250.degree. to 500.degree. C., wherein a compound selected from the group comprising boron oxyacids and their inorganic salts is precipitated on the said iron oxide before reduction.
摘要翻译：制造针状铁磁性金属颗粒的方法，其主要由铁组成，并在其表面上携带0.02至0.6重量％硼酸盐形式的硼，通过用气态还原剂还原针状氧化铁从250℃至500℃，其中在还原之前将选自含硼酸及其无机盐的化合物沉淀在所述氧化铁上。

9. 发明授权

US4420330A Stabilization of pyrophoric ferromagnetic acicular metal particles consisting essentially of iron 失效
标题翻译：基本上由铁组成的自发性铁磁针状金属颗粒的稳定化
公开(公告)号：US4420330A
公开(公告)日：1983-12-13
申请号：US368984
申请日：1982-04-16
申请人： Helmut Jakusch , Werner Loeser , Eberhard Koester , Peter Rudolf , Werner Senkpiel , Werner Steck
发明人： Helmut Jakusch , Werner Loeser , Eberhard Koester , Peter Rudolf , Werner Senkpiel , Werner Steck
IPC分类号： B22F1/02 , B22F1/00 , C23C8/14 , H01F1/06 , C22C1/04
CPC分类号： C23C8/14 , B22F1/0088 , H01F1/061
摘要： A process for stabilizing pyrophoric acicular metal particles consisting essentially of iron, by reaction with oxygen-containing gases in two stages, wherein, in the first stage, up to 1/3 of the passivating layer present in the final state is formed at from 25.degree. to 45.degree. C. and, in a subsequent second stage, the remainder of the passivating layer is formed at from 50.degree. to 70.degree. C.
摘要翻译：一种通过两个阶段与含氧气体反应来稳定基本由铁组成的自发性针状金属颗粒的方法，其中在第一阶段中，以最终状态存在至多1/3的钝化层形成为25 ℃至45℃，在随后的第二阶段中，钝化层的其余部分在50℃至70℃下形成。

10. 发明授权

US4287233A Manufacture of acicular cobalt-containing magnetic iron oxide 失效
标题翻译：针状钴磁性氧化铁的制造
公开(公告)号：US4287233A
公开(公告)日：1981-09-01
申请号：US116543
申请日：1980-01-29
申请人： Peter Rudolf , Werner Steck , Eberhard Koester , Manfred Ohlinger , Christof Jaeckh
发明人： Peter Rudolf , Werner Steck , Eberhard Koester , Manfred Ohlinger , Christof Jaeckh
IPC分类号： G11B5/706 , C01G49/06
CPC分类号： G11B5/70657
摘要： A process for the manufacture of acicular magnetic iron oxide consisting of core of gamma-iron(III) oxide and a ferrite shell which contains, based on the total amount of magnetic material, from 0.2 to 12 per cent by weight of cobalt(II) ions and from 0.1 to 15 per cent by weight of iron(II) ions, wherein a precipitate of cobalt(II) hydroxide and iron (II) hydroxide is applied to acicular gamma-iron(III) oxide particles and the latter are heated at 100.degree.-200.degree. C.
摘要翻译：制造由γ-铁（III）氧化物核心和铁氧体壳组成的针状磁性氧化铁的方法，其包含基于磁性材料总量的0.2至12重量％的钴（II）离子和0.1至15重量％的铁（II）离子，其中将氢氧化钴（II）和氢氧化铁（II）的沉淀物施加到针状γ-铁（III）氧化物颗粒上，并将后者加热至 100℃-200℃

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