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1. 发明授权

US4074002A Magnetic recording media having a low coefficient of friction 失效
标题翻译：具有低摩擦系数的磁记录介质
公开(公告)号：US4074002A
公开(公告)日：1978-02-14
申请号：US664644
申请日：1976-03-08
申请人： Joachim Hack , Dieter Schaefer , Herbert Motz
发明人： Joachim Hack , Dieter Schaefer , Herbert Motz
IPC分类号： G11B5/708 , H01F10/02
CPC分类号： G11B5/708 , Y10S428/90 , Y10T428/259
摘要： Magnetic recording media comprising a base and, applied thereto, at least one firmly adhering magnetic layer based on magnetic particles dispersed in a mixture of organic binders, wherein at least the uppermost magnetic layer additionally contains non-magnetic particles of precipitated silica having a primary particle diameter of from 0.02 to 0.1.mu., a secondary particle diameter of from 2 to 4.mu. and a pH of from 5 to 8.As a result of the incorporation of such a precipitated silica into the magnetic layer, the coefficient of friction between the latter and metals remains uniformly low even after prolonged use, and no stick-slip motion occurs.
摘要翻译：磁性记录介质包括基底，并施加至少一个基于分散在有机粘合剂混合物中的磁性颗粒的至少一个牢固粘附的磁性层，其中至少最上面的磁性层另外含有具有一次粒子的沉淀二氧化硅的非磁性颗粒直径为0.02〜0.1μm，二次粒径为2〜4μm，pH为5〜8。

2. 发明授权

US4001463A Process and apparatus for the manufacture of rigid magnetic discs 失效
标题翻译：用于制造刚性磁盘的工艺和装置
公开(公告)号：US4001463A
公开(公告)日：1977-01-04
申请号：US597684
申请日：1975-07-21
申请人： Dieter Schaefer , Herbert Motz
发明人： Dieter Schaefer , Herbert Motz
IPC分类号： G11B5/74 , G11B5/845 , B05D3/14 , B05B5/00
CPC分类号： G11B5/845 , G11B5/74
摘要： A process and apparatus for the manufacture of magnetic discs in which the preferred direction of particle orientation is parallel to the plane of the disc and tangential to its circumference. The base discs coated with the still fluid magnetic dispersion, are introduced into a zone of magnetic flux bounded by conductors, the conducting boundary being so arranged that the current flow on one side of the base disc runs radially outwards and on the other side runs radially inwards.

3. 发明授权

US4267203A Manufacture of magnetic recording media 失效
标题翻译：制造磁记录介质
公开(公告)号：US4267203A
公开(公告)日：1981-05-12
申请号：US86135
申请日：1979-10-18
申请人： Herbert Motz , Dieter Schaefer , Werner Huebner , Dieter Mayer
发明人： Herbert Motz , Dieter Schaefer , Werner Huebner , Dieter Mayer
IPC分类号： G11B5/70 , B01F5/06 , B01F15/02 , C09D5/23 , C09D7/12 , G11B5/84 , G11B5/845 , B05D3/14
CPC分类号： B01F15/0247 , B01F15/0201 , B01F5/0665 , B01F5/0681 , G11B5/84
摘要： A process for the manufacture of magnetic recording media by dispersing a mixture of particulate anisotropic magnetic material and additives in a solution of a polymeric binder in an organic solvent, compressing and then releasing the pressure on the dispersion, thereafter applying a layer of the dispersion to a non-magnetizable base, orienting the anisotropic magnetic material by means of a magnetic field, and drying the coating.
摘要翻译：一种通过将颗粒状各向异性磁性材料和添加剂的混合物分散在有机溶剂中的聚合物粘合剂溶液中制造磁记录介质的方法，压缩然后释放分散体上的压力，然后将分散体层施加到不可磁化的基座，通过磁场定向各向异性磁性材料，并干燥涂层。

4. 发明授权

US4201149A Apparatus for spin coating in the production of thin magnetic layers for magnetic discs 失效
标题翻译：用于制造磁盘薄磁层的旋涂装置
公开(公告)号：US4201149A
公开(公告)日：1980-05-06
申请号：US946355
申请日：1978-09-27
申请人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
发明人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
IPC分类号： G11B5/842 , B05C11/08
CPC分类号： G11B5/842
摘要： The invention relates to an improved apparatus for the manufacture of magnetic discs carrying very thin magnetic layers, by applying a fluid dispersion of magnetic materials in a binder mixture to rigid base discs by the spin-coating process. Above the side of the base disc which is to be provided with the magnetic layer, there are arranged means which produce an aerodynamic boundary layer above the discs during rotation of the latter. This avoids the formation of surface irregularities and of coating streaks during production of the layer by spin-coating.
摘要翻译：本发明涉及一种用于制造承载非常薄的磁性层的磁盘的改进装置，通过旋涂法将粘合剂混合物中的磁性材料的流体分散体施加到刚性基底盘上。在要设置有磁性层的基盘的侧面之上，设置有在盘的旋转期间在盘上方产生空气动力学边界层的装置。这避免了在通过旋涂生产层期间形成表面不规则和涂层条纹。

5. 发明授权

US4048375A Magnetic recording media of improved mechanical resistance 失效
标题翻译：提高机械阻力的磁记录介质
公开(公告)号：US4048375A
公开(公告)日：1977-09-13
申请号：US708603
申请日：1976-07-26
申请人： Gustav Loewenberg , Hans-Joerg Hartmann , Dieter Schaefer , Herbert Motz , Helmut Jakusch
发明人： Gustav Loewenberg , Hans-Joerg Hartmann , Dieter Schaefer , Herbert Motz , Helmut Jakusch
IPC分类号： G11B5/708 , C09D5/23 , C09D7/12 , C09D131/02 , C09D177/00 , C09D177/06 , G11B5/70 , G11B5/702 , H01F10/02
CPC分类号： G11B5/7028 , G11B5/70 , Y10S428/90 , Y10T428/31736 , Y10T428/31765
摘要： Magnetic recording media consisting of a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on finely divided magnetic pigment dispersed in organic binders, which coating contains, according to the invention, salts of long-chain basic polyaminoamides with high molecular weight organic acid esters.Such magnetic recording media exhibit improved mechanical resistance and improved adhesion of the coating to the base, coupled with advantageous electromagnetic properties.
摘要翻译：由非磁性基底组成的磁记录介质，并施加到基于分散在有机粘合剂中的细分散的磁性颜料的牢固粘附的磁性涂层，该涂层含有根据本发明的具有高分子量的长链碱性聚氨基酰胺的盐有机酸酯。

6. 发明授权

US4327139A Rigid magnetic recording disk having perfluoropolyether lubricant 失效
标题翻译：具有全氟聚醚润滑剂的刚性磁记录盘
公开(公告)号：US4327139A
公开(公告)日：1982-04-27
申请号：US66556
申请日：1979-08-15
申请人： Dieter Schaefer , Herbert Motz , Dieter Mayer , Paul Deigner , Joachim Hack , Roland Falk
发明人： Dieter Schaefer , Herbert Motz , Dieter Mayer , Paul Deigner , Joachim Hack , Roland Falk
IPC分类号： C09D5/23 , G11B5/71 , G11B5/725 , G11B5/82 , B32B7/02 , B32B27/00
CPC分类号： G11B5/71 , G11B5/725 , Y10S428/90 , Y10T428/24975 , Y10T428/31544
摘要： A magnetic recording medium comprising a non-magnetic base and a magnetizable layer which is applied to at least one side thereof and comprises magnetic particles finely dispersed in a polymeric binder and additives, the surface of the magnetizable layer being provided with a coating of a perfluoropolyether oil mixture as a lubricant.
摘要翻译：一种包含非磁性基体和可磁化层的磁记录介质，其被施加到其至少一侧，并且包括细分散在聚合物粘合剂中的磁性颗粒和添加剂，可磁化层的表面设置有全氟聚醚涂层油混合物作为润滑剂。

7. 发明授权

US4046932A Magnetic recording discs 失效
标题翻译：磁记录盘
公开(公告)号：US4046932A
公开(公告)日：1977-09-06
申请号：US656182
申请日：1976-02-09
申请人： Hans-Joerg Hartmann , Roland Falk , Peter Gawlik , Werner Balz , Karl Uhl , Dieter Schaefer , Herbert Motz
发明人： Hans-Joerg Hartmann , Roland Falk , Peter Gawlik , Werner Balz , Karl Uhl , Dieter Schaefer , Herbert Motz
IPC分类号： G11B5/702 , H01F10/02
CPC分类号： G11B5/7023 , Y10S428/90 , Y10T428/254 , Y10T428/257 , Y10T428/269 , Y10T428/31529
摘要： The invention relates to a process for the manufacture of improved magnetic discs by applying a thin layer of a liquid dispersion of magnetic pigments and optionally further, non-magnetic, pigments in a binder mixture to a non-magnetic rigid base, and curing the magnetic coating which has been applied. The binder used is a mixture of polycondensates comprising 60 to 70% by weight of a solid curable polycondensate of 2,2-bis(4-hydroxyphenyl)-propane and epichlorohydrin having an epoxy equivalent weight from about 400 to 2,500 and a melting point from about 50.degree. to 150.degree. C, 10 to 30% by weight of a curable allyloxybenzene-formaldehyde condensate of the resol type with free methylol groups or with methylol groups etherified with a lower alcohol, and having a molecular weight of less than 1,000, and 10 to 30% by weight of a curable melamine-formaldehyde condensate with more than two methylol groups etherified with n-butanol or iso-butanol, and having a molecular weight of less than 2,500. A magnetic dispersion using such a binder allows the application of a firmly adhering magnetic coating, even in thicknesses of less than 4 .mu., to aluminum discs or pre-coated aluminum discs, and the magnetic coating produced has high resistance to mechanical wear.
摘要翻译：本发明涉及通过将粘性混合物中的磁性颜料和任选的另外的非磁性颜料的液体分散体的薄层施加到非磁性刚性基底上来制造改进的磁盘的方法，以及固化磁性已涂覆的涂层。使用的粘合剂是包含60至70重量％的环氧当量为约400至2,500的2,2-双（4-羟基苯基） - 丙烷和表氯醇的固体可固化缩聚物的缩聚物混合物，熔点为约50〜150℃，10〜30重量％的甲阶型固化性烯丙氧基苯 - 甲醛缩合物与游离羟甲基或与低级醇醚化的羟甲基，分子量小于1,000，以及 10至30重量％的可固化的三聚氰胺 - 甲醛缩合物，其具有用正丁醇或异丁醇醚化的两个以上羟甲基，分子量小于2500。使用这种粘合剂的磁性分散体允许对铝盘或预涂铝盘施加甚至厚度小于4微米的牢固粘附的磁性涂层，并且所产生的磁性涂层具有高的耐机械磨损性。

8. 发明授权

US4133911A Manufacture of magnetic discs 失效
标题翻译：制造磁盘
公开(公告)号：US4133911A
公开(公告)日：1979-01-09
申请号：US641356
申请日：1975-12-16
申请人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
发明人： Eberhard Koester , Paul Deigner , Roland Falk , Karl Uhl , Dieter Schaefer , Dieter Mayer , Herbert Motz , Peter Felleisen
IPC分类号： B05C11/08 , B05D1/40 , G11B5/842 , H01F10/02
CPC分类号： G11B5/842
摘要： The invention relates to an improved process for the manufacture of magnetic discs carrying very thin magnetic layers, by applying a fluid dispersion of magnetic materials in a binder mixture to rigid base discs by the spin-coating process. Above the side of the base disc which is to be provided with the magnetic layer, there are arranged means which produce an aerodynamic boundary layer above the discs during rotation of the latter. This avoids the formation of surface irregularities and of coating streaks during production of the layer by spin-coating.
摘要翻译：本发明涉及通过旋涂方法将粘合剂混合物中的磁性材料的流体分散体施加到刚性基底盘上来制造承载非常薄的磁性层的磁盘的改进方法。在要设置有磁性层的基盘的侧面之上，设置有在盘的旋转期间在盘上方产生空气动力学边界层的装置。这避免了在通过旋涂生产层期间形成表面不规则和涂层条纹。

9. 发明授权

US4464352A Manufacture of acicular ferrimagnetic iron oxide 失效
标题翻译：针状亚铁磁性氧化铁的制造
公开(公告)号：US4464352A
公开(公告)日：1984-08-07
申请号：US448489
申请日：1982-12-10
申请人： Horst Autzen , Herbert Motz , Peter Rudolf , Wilhelm Sarnecki , Werner Steck , Guenter Vaeth
发明人： Horst Autzen , Herbert Motz , Peter Rudolf , Wilhelm Sarnecki , Werner Steck , Guenter Vaeth
IPC分类号： C01G49/06 , G11B5/706
CPC分类号： C01G49/06 , G11B5/70642 , G11B5/70652 , G11B5/70663 , C01P2004/10 , C01P2006/12 , C01P2006/42
摘要： A process for the manufacture of acicular ferrimagnetic iron oxide by converting acicular iron(III) oxide hydroxide at from 300.degree. to 650.degree. C., by treatment with an organic compound which decomposes in this temperature range in the presence of iron oxide, the iron(III) oxide hydroxide used for the reaction being a lepidocrocite which has been heat-treated at from 300.degree. to 700.degree. C.
摘要翻译：通过用在氧化铁存在下在该温度范围内分解的有机化合物处理，将300至650℃的针状氧化铁（III）氢氧化物转化成针状亚铁磁性氧化铁的方法，用于该反应的氧化氢氧化物（III）是在300〜700℃下进行热处理的氯铁矿石。

10. 发明授权

US4357378A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US4357378A
公开(公告)日：1982-11-02
申请号：US234708
申请日：1981-02-17
申请人： Guenter Vaeth , Rudolf Bachmann , Werner Senkpiel , Hans-Joerg Hartmann , Roland Falk , Herbert Motz
发明人： Guenter Vaeth , Rudolf Bachmann , Werner Senkpiel , Hans-Joerg Hartmann , Roland Falk , Herbert Motz
IPC分类号： C09D5/23 , G11B5/702 , B32B3/02
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31605 , Y10T428/31609 , Y10T428/31699 , Y10T428/31935
摘要： The invention relates to magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment and a special binder mixture. This binder mixture consists essentially of 20 to 90 percent by weight of an elastomeric polyurethane which is soluble in a volatile organic solvent, is practically free of isocyanate groups and has been obtained from a linear, aliphatic polyester or polyether and a diisocyanate of 6 to 24 carbon atoms, and of 10 to 80 percent by weight of a vinyl chloride copolymer which contains 50 to 90 percent by weight of vinyl chloride units and 10 to 50 percent by weight of units of one or more diesters of maleic acid with an alcohol of 1 to 3 carbon atoms, or of the reaction product of this binder mixture with a polyisocyanate of 6 to 50 carbon atoms. Magnetic coatings containing such a binder mixture are distinguished by improved surface hardness coupled with improved orientability of the magnetic particles, as a result of which such recording media are particularly suitable for modern video- and audio-recording instruments.
摘要翻译：本发明涉及包含非磁性基底的磁记录介质，并且在其上施加基于细分磁性颜料和特殊粘合剂混合物的牢固粘附的磁性涂层。该粘合剂混合物基本上由20至90重量％的可溶于挥发性有机溶剂的弹性体聚氨酯组成，实际上不含异氰酸酯基团，并且由线性脂族聚酯或聚醚和6至24的二异氰酸酯获得和10至80重量％的氯乙烯共聚物，其含有50至90重量％的氯乙烯单元和10至50重量％的一种或多种马来酸二醇与醇的共聚物1 或者该粘合剂混合物与6至50个碳原子的多异氰酸酯的反应产物。含有这种粘合剂混合物的磁性涂层的特征在于改进的表面硬度以及磁性颗粒的改进的取向性，结果这种记录介质特别适用于现代的视频和音频记录仪器。

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