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：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：US4018967A

公开(公告)日：1977-04-19

申请号：US507466

申请日：1974-09-19

申请人： Hermann Roller ,  Werner Senkpiel ,  Gerd Wunsch ,  Job-Werner Hartmann ,  Friedrich Fuchs ,  Joachim Hack ,  Volker Kiener ,  Herbert Motz ,  Werner Ostertag

发明人： Hermann Roller ,  Werner Senkpiel ,  Gerd Wunsch ,  Job-Werner Hartmann ,  Friedrich Fuchs ,  Joachim Hack ,  Volker Kiener ,  Herbert Motz ,  Werner Ostertag

IPC分类号： G11B5/72 ,  C07F9/6581 ,  C07F9/6593 ,  C08K5/5399 ,  C09D5/23 ,  C09D7/12 ,  G11B5/71 ,  G11B5/725 ,  H01F10/02

CPC分类号： C07F9/65815 ,  C07F9/65812 ,  C08K5/5399 ,  G11B5/71 ,  Y10S428/90 ,  Y10T428/31609

摘要： Magnetic recording tape especially suitable for use as video tape and computer tape, comprising a base carrying a magnetic coating which consists essentially of a dispersion of a finely divided magnetic pigment and at least one lubricant in an organic binder. The lubricant is a compound of the formula ##STR1## IN WHICH N IS AN INTEGER OF FROM 3 TO 8 AND R.sup.1 and R.sup.2 are an alkoxy or aralkoxy radical or conjointly are an alkyldioxy radical of 3 to 18 carbon atoms. A magnetic recording tape prepared with a high proportion of such a lubricant is distinguished by high abrasion resistance coupled with a minimum transfer of material to the magnetic heads even under fluctuating climatic conditions.

摘要翻译： 特别适合用作录像带和计算机磁带的磁记录带，包括承载磁性涂层的底座，其基本上由细分磁性颜料和至少一种润滑剂在有机粘合剂中的分散体组成。 润滑剂是下式的化合物，其中N是3至8的整数，并且R 1和R 2是烷氧基或芳烷氧基，或者共同是具有3至18个碳原子的烷基二氧基。 用高比例的这种润滑剂制备的磁记录带的特征在于，即使在波动的气候条件下，也可以通过高耐磨性和最小的材料转移到磁头来进行。

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。

公开(公告)号：US4018968A

公开(公告)日：1977-04-19

申请号：US507457

申请日：1974-09-19

申请人： Ute Neumann ,  Hermann Roller ,  Job-Werner Hartmann ,  Joachim Hack ,  Herbert Motz ,  Werner Ostertag

发明人： Ute Neumann ,  Hermann Roller ,  Job-Werner Hartmann ,  Joachim Hack ,  Herbert Motz ,  Werner Ostertag

IPC分类号： C07F9/09 ,  C08K5/521 ,  C09D5/23 ,  C09D7/12 ,  G11B5/71 ,  G11B5/72 ,  G11B5/725 ,  H01F10/02

CPC分类号： G11B5/71 ,  C07F9/091 ,  C08K5/521 ,  Y10S428/90

摘要： Coated magnetic recording media, especially video tapes and computer tapes, comprising a non-magnetic base carrying a magnetic coating which consists of a dispersion, essentially containing a finely divided magnetic pigment in an organic binder and at least one lubricant. A compound of the formula ##STR1## in which n is an integer of from 1 to 3 and R is alkyl, alkoxyalkyl or aralkyl, each of 3 to 18 carbon atoms, is used as a lubricant. The products have high abrasion resistance coupled with only little transfer of material to the magnetic heads even under fluctuating climatic conditions.

摘要翻译： 涂覆的磁记录介质，特别是视频磁带和计算机磁带，其包含带有磁性涂层的非磁性基底，磁性涂层由分散体组成，基本上含有有机粘合剂中的细分磁性颜料和至少一种润滑剂。 其中n为1〜3的整数，R为具有3〜18个碳原子的烷基，烷氧基烷基或芳烷基的式“IMAGE”的化合物用作润滑剂。 该产品具有高耐磨性，即使在波动的气候条件下，也只能将少量的材料转移到磁头。

公开(公告)号：US5084319A

公开(公告)日：1992-01-28

申请号：US435680

申请日：1989-11-14

申请人： Hartmut Hibst ,  Arend Werner ,  Joachim Hack ,  Heinrich Mannsperger ,  Michael Hitzfeld ,  Werner Grau ,  Guenter Heil ,  Norbert Holl

发明人： Hartmut Hibst ,  Arend Werner ,  Joachim Hack ,  Heinrich Mannsperger ,  Michael Hitzfeld ,  Werner Grau ,  Guenter Heil ,  Norbert Holl

IPC分类号： G11B23/03 ,  C10M105/34 ,  C10N20/06 ,  C10N40/18 ,  G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/84 ,  G11B23/033

CPC分类号： G11B5/725 ,  Y10S428/90 ,  Y10T428/265 ,  Y10T428/30

摘要： Disk-shaped magnetic recording media essentially consisting of a flexible substrate, a thin ferromagnetic metal film applied to one or both sides and a protective or antifriction layer present on this metal film and essentially consisting of carbon, a process for the production of these recording media and information stores containing these recording media.

摘要翻译： 基本上由柔性基板，施加到一侧或两侧的薄铁磁性金属膜以及存在于该金属膜上并基本上由碳构成的保护或减摩层的盘状磁记录介质，用于生产这些记录介质的方法 和包含这些记录媒体的信息存储。

公开(公告)号：US4597990A

公开(公告)日：1986-07-01

申请号：US769979

申请日：1985-08-27

申请人： Hermann Roller ,  Joachim Hack ,  Uwe Woweries ,  August Lehner ,  Werner Grau ,  Peter Nagel ,  Roland Falk

发明人： Hermann Roller ,  Joachim Hack ,  Uwe Woweries ,  August Lehner ,  Werner Grau ,  Peter Nagel ,  Roland Falk

IPC分类号： C08J7/04 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  C10M105/56 ,  C10N40/18 ,  C10N70/00 ,  G11B5/702 ,  G11B5/842

CPC分类号： G11B5/7021 ,  Y10S428/90 ,  Y10T428/31609

摘要： A process for the preparation of a magnetic recording medium by dispersing pulverulent magnetic material in a binder mixture which is dissolved in an organic solvent and essentially consists of an elastomeric polyurethane and a high molecular weight hydroxyl-containing polymer, with addition of dispersing assistants and conventional additives, applying a layer of the dispersion, to which a diisocyanate and/or polyisocyanate has first been added, to a base material and the solidifying the layer and crosslinking the binder matrix, wherein the diisocyanate and/or polyisocyanate is added to the dispersion and, before applying the dispersion to the base, from 15 to 55% of the NCO groups present react with the hydroxyl-containing polymer of the binder mixture.

摘要翻译： 一种通过将粉状磁性材料分散在溶解在有机溶剂中并且基本上由弹性体聚氨酯和高分子量含羟基聚合物组成的粘合剂混合物中制备磁记录介质的方法，加入分散助剂和常规的 添加剂，将首先加入二异氰酸酯和/或多异氰酸酯的分散体层分别加入到基材中，并固化该层并交联粘合剂基质，其中将二异氰酸酯和/或多异氰酸酯加入到分散体中， 在将分散体施加到基材之前，存在15〜55％的NCO基团与粘合剂混合物的含羟基聚合物反应。

公开(公告)号：US4534999A

公开(公告)日：1985-08-13

申请号：US630182

申请日：1984-07-12

申请人： Hermann Roller ,  August Lehner ,  Joachim Hack ,  Werner Grau ,  Werner Balz ,  Reinhold Baur

发明人： Hermann Roller ,  August Lehner ,  Joachim Hack ,  Werner Grau ,  Werner Balz ,  Reinhold Baur

IPC分类号： G11B5/842 ,  C09D5/23 ,  C09D7/12 ,  G11B5/70 ,  G11B5/702 ,  G11B5/73 ,  G11B5/735 ,  G11B5/84

CPC分类号： G11B5/7013 ,  G11B5/7028

摘要： Magnetic recording media which have a thin backing coating and consist of a non-magnetic flexible base and a magnetic layer which is applied to one side of the base and comprises magnetic material finely dispersed in an organic binder are produced by applying a dispersion of finely divided non-magnetizable conductive and non-conductive solids and conventional additives in a solution of a polymeric binder in an organic solvent to that side of the base which is opposite the magnetic layer by means of a knife-coater, and then drying the layer, a high molecular weight organic compound which acts as a thickener being added to the backing coating dispersion.

摘要翻译： 具有薄背衬涂层并由非磁性柔性基底和磁性层组成的磁记录介质通过施加细分散的分散体来制备，所述非磁性柔性基底和磁性层被施加到基底的一侧并且包括细分散在有机粘结剂中的磁性材料 不可磁化的导电和非导电固体和常规添加剂在聚合物粘合剂在有机溶剂中的溶液中，通过刮涂机将其与磁性层相对的基底侧面，然后干燥该层 用作增稠剂的高分子量有机化合物加入到背衬涂料分散体中。

公开(公告)号：US4796137A

公开(公告)日：1989-01-03

申请号：US919043

申请日：1986-10-15

申请人： Dietrich Gruehn ,  Joachim Hack ,  Hubert Fehrenbach ,  Peter Rudolf ,  Norbert Holl

发明人： Dietrich Gruehn ,  Joachim Hack ,  Hubert Fehrenbach ,  Peter Rudolf ,  Norbert Holl

IPC分类号： G11B23/033 ,  B65D85/57

CPC分类号： G11B23/0332

摘要： In a protective jacket for disk-shaped recording media, for example magnetic films, fixed magnetic disks, grammophone disks or video disks, the fleece covering in the jacket is fastened close to the outer edges of the jacket and close to the contour lines of the openings by means of heat welded points a short distance apart and in the region inbetween at a distance apart which is several times as large. As a result of the cushions thus formed, a more advantageous cleaning effect is achieved.

摘要翻译： 在用于盘形记录介质（例如磁性膜，固定磁盘，格子弹簧盘或视频盘）的保护套中，护套中的羊毛覆盖件被紧固在护套的外边缘附近并且靠近护套的轮廓线 通过热焊接点彼此短距离的开口，并且在距离相差几倍的区域中。 作为由此形成的缓冲垫的结果，实现了更有利的清洁效果。

公开(公告)号：US4623942A

公开(公告)日：1986-11-18

申请号：US734182

申请日：1985-05-15

申请人： Gerold Kraus ,  Walter Huber ,  Joachim Hack ,  Klaus Schulze-Berge ,  Roland Sold

发明人： Gerold Kraus ,  Walter Huber ,  Joachim Hack ,  Klaus Schulze-Berge ,  Roland Sold

IPC分类号： G11B5/56 ,  G11B5/58 ,  G11B5/596 ,  G11B20/18 ,  G11B21/10 ,  G11B23/36 ,  G11B5/48

CPC分类号： G11B23/36 ,  G11B20/182 ,  G11B5/59627

摘要： A method and an arrangement for detecting error signals in a magnetic disk drive apparatus uses a test disk which has a plurality of test tracks distributed over the recording area and containing special test signals, a distinction being made between orientation, adjustment and azimuth bursts. Based on the normal position of the recording tracks of the magnetic disk, the spacing of the test tracks could depend on the type of step motor if such a motor is used in the positioning device. By special control, hysteresis errors can be measured in addition to tracking errors, eccentricity errors and azimuth errors.An advantageous use is for all types of disk drives, preferably FlexyDisk drives.

摘要翻译： 用于检测磁盘驱动装置中的误差信号的方法和装置使用具有分布在记录区域上并包含特殊测试信号的多个测试轨迹的测试盘，在取向，调整和方位脉冲之间进行区分。 基于磁盘的记录轨道的正常位置，如果在定位装置中使用这样的电动机，测试轨迹的间距可以取决于步进电机的类型。 通过特殊控制，除了跟踪误差，偏心率误差和方位误差之外，还可以测量滞后误差。 适用于所有类型的磁盘驱动器，最好是FlexyDisk驱动器。