公开(公告)号：US4275114A

公开(公告)日：1981-06-23

申请号：US776224

申请日：1977-03-10

申请人： Eduard Schoenafinger ,  Herbert Motz ,  Manfred Ohlinger ,  Paul Deigner ,  Werner Grau

发明人： Eduard Schoenafinger ,  Herbert Motz ,  Manfred Ohlinger ,  Paul Deigner ,  Werner Grau

IPC分类号： G11B5/712 ,  C09C1/34 ,  C09C3/12 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  H01F1/11 ,  B32B5/16

CPC分类号： C09C3/12 ,  C09C1/346 ,  G11B5/70636 ,  C01P2006/42 ,  Y10S428/90 ,  Y10T428/256 ,  Y10T428/259 ,  Y10T428/31663

摘要： Chromium dioxide magnetic pigments are stabilized against loss of their magnetic properties by treating them, in aqueous and/or alcoholic suspension, with a block copolymer consisting of siloxane units and alkyleneoxy units of 2 to 4 carbon atoms, the alkyleneoxy units being bonded to the polysiloxane radical by a Si--O--C or Si--C group, in an amount of from 1 to 40% by weight based on the chromium dioxide, after which the latter is separated off and dried at from 50.degree. to 200.degree. C. The stabilized chromium dioxide magnetic pigments may be used for the manufacture of magnetic recording media exhibiting improved stability of the magnetic properties under adverse climatic conditions.

摘要翻译： 通过在水性和/或醇悬浮液中用由硅氧烷单元和2至4个碳原子的亚烷基氧基单元组成的嵌段共聚物来处理二氧化钛磁性颜料，以防它们的磁性丧失，亚烷氧基单元与聚硅氧烷键合 通过Si-OC或Si-C基团以基于二氧化铬的1至40重量％的量自由基，然后将其分离并在50至200℃下干燥。稳定的铬 二氧化物磁性颜料可用于制造在不利的气候条件下表现出改进的磁性能稳定性的磁记录介质。

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。

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。

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。

公开(公告)号：US3995089A

公开(公告)日：1976-11-30

申请号：US564473

申请日：1975-04-02

申请人： Job Werner Hartmann ,  Hans-Joerg Hartmann ,  Dieter Mayer ,  Peter Felleisen ,  Ursula Klein ,  Herbert Motz

发明人： Job Werner Hartmann ,  Hans-Joerg Hartmann ,  Dieter Mayer ,  Peter Felleisen ,  Ursula Klein ,  Herbert Motz

IPC分类号： G11B5/62 ,  G11B5/708 ,  H01F10/00

CPC分类号： G11B5/708 ,  G11B5/62 ,  Y10S428/90 ,  Y10T428/24413 ,  Y10T428/265 ,  Y10T428/31609

摘要： A magnetic recording medium in the form of a card having a non-magnetic support with a magnetic coating on one side of the support and a backcoating on the opposite side of the support, which backcoating exhibits improved scratch resistance and adherence to the support and improved frictional characteristics and consists essentially of 20 to 50% by weight of a binder mixture containing 10 to 60% by weight of an elastomeric polyurethane and, incorporated in the binder mixture, a non-magnetic pulverulent mixture of 10 to 40% by weight of conductive carbon powder and 60 to 90% by weight of platelet-shaped and spherical particles.

摘要翻译： 一种具有卡片形式的磁记录介质，其具有在载体的一侧上具有磁性涂层的非磁性载体和在支撑体的相对侧上的背涂层，所述背涂层显示出改善的耐划伤性和对载体的粘附性并且改进 摩擦特性，并且基本上由20至50重量％的包含10至60重量％的弹性体聚氨酯的粘合剂混合物组成，并且在粘合剂混合物中掺入10至40重量％的导电的非磁性粉末混合物 碳粉和60至90重量％的血小板形和球形颗粒。

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。

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。

公开(公告)号：US3428322A

公开(公告)日：1969-02-18

申请号：US3428322D

申请日：1965-10-22

申请人： HERBERT MOTZ

发明人： MOTZ HERBERT

IPC分类号： A63D15/02 ,  A63F7/00 ,  A63D13/00

CPC分类号： A63D15/02

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。

公开(公告)号：US4320171A

公开(公告)日：1982-03-16

申请号：US150749

申请日：1980-05-19

申请人： Herbert Motz ,  August Lehner ,  Heinrich Hartmann ,  Rudolf Bachmann ,  Hans-Joerg Hartmann ,  Harald Frischmann ,  Roland Falk ,  Joachim Hack ,  Milan Velic ,  Helmut Kopke

发明人： Herbert Motz ,  August Lehner ,  Heinrich Hartmann ,  Rudolf Bachmann ,  Hans-Joerg Hartmann ,  Harald Frischmann ,  Roland Falk ,  Joachim Hack ,  Milan Velic ,  Helmut Kopke

IPC分类号： C08G18/66 ,  C09D5/23 ,  G11B5/702 ,  B32B27/40 ,  B32B5/16

CPC分类号： C08G18/6644 ,  G11B5/7021 ,  Y10S428/90 ,  Y10T428/31551 ,  Y10T428/31565 ,  Y10T428/31591 ,  Y10T428/31609

摘要： Magnetic recording media comprising a non-magnetic base and, applied thereto, a firmly adhering magnetic coating based on a finely divided magnetic pigment dispersed in a binder which contains at least 50 percent by weight of a special polyurethane elastomer, namely a thermoplastic polyurethane which is soluble in tetrahydrofuran, is free from isocyanate groups and has been manufactured from (A) 1 mole of a hydroxyl-containing polyester having a molecular weight of from 700 to 2,500, (B) from 0.3 to 3 moles of a linear aliphatic diol of 2 to 10 carbon atoms, (C) from 0.05 to 0.4 mole of a triol of 3 to 10 carbon atoms, and (D) from 1.35 to 4.7 moles of a diisocyanate of 6 to 30 carbon atoms, the amount of NCO groups being approximately equivalent to the amount of OH groups of the sum of components (A) to (C).

摘要翻译： 磁性记录介质包括非磁性基底，并施加于基于分散在粘合剂中的细碎磁性颜料的牢固粘附的磁性涂层，所述磁性颜料含有至少50重量％的特殊聚氨酯弹性体，即热塑性聚氨酯，其为 可溶于四氢呋喃中，不含异氰酸酯基团，并且由（A）1摩尔分子量为700至2,500的含羟基的聚酯制成，（B）为0.3-3摩尔的直链脂族二醇为2 至10个碳原子，（C）0.05至0.4摩尔3至10个碳原子的三醇，和（D）1.35至4.7摩尔的6至30个碳原子的二异氰酸酯，NCO基团的量约等于 相对于组分（A）至（C）的总和的OH基团的量。