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1. 发明授权

US3955037A Magnetic discs having a multi-component binder 失效
标题翻译：具有多组分粘合剂的磁盘
公开(公告)号：US3955037A
公开(公告)日：1976-05-04
申请号：US521459
申请日：1974-11-06
申请人： Matthias Marx , Job-Werner Hartmann , Werner Ostertag
发明人： Matthias Marx , Job-Werner Hartmann , Werner Ostertag
IPC分类号： C09D5/23 , G11B5/702 , H01F10/02
CPC分类号： G11B5/7022 , G11B5/7023 , Y10S428/90 , Y10T428/31529 , Y10T428/31688
摘要： A process for the manufacture of improved magnetic discs by applying a thin layer of a fluid dispersion of magnetic pigments and optional non-magnetic pigments in a binder mixture to a non-magnetic rigid base and curing the magnetic layer which has been applied. The binder consists essentially of from 60 to 90 percent by weight of a solid curable polycondensate of 2,2-bis-(4-hydroxyphenyl)-propane and epichlorohydrin having an epoxide equivalent weight of approximately 400 to 5,000, from 5 to 25 percent by weight of a curable allyloxybenzene-formaldehyde condensate of the resol type with free or alcohol-etherified methylol groups and a molecular weight of less thah 1,000, and from 5 to 30 percent by weight of a curable melamine-formaldehyde condensate with more than two alcohol-etherified methylol groups and a molecular weight of less than 3,000, from 10 to 35 percent by weight of the above epoxy resin being replaced by a reaction product of an epoxy group-containing polycondensate of 2,2-bis-(4-hydroxyphenyl)-propane and epichlorohydrin with the N-methylolamide of a copolymerizable olefinically unsaturated carboxylic acid of 3 to 5 carbon atoms. The magnetic layers thus produced adhere firmly to the base, can be readily ground and polished and are particularly resistant to wear when the magnetic discs are in use.
摘要翻译：通过将粘合剂混合物中的磁性颜料和任选的非磁性颜料的流体分散体的薄层施加到非磁性刚性基底并固化已经施加的磁性层来制造改进的磁盘的方法。粘合剂基本上由60至90重量％的2,2-双 - （4-羟基苯基） - 丙烷和表氯醇的固体可固化缩聚物，其环氧当量为约400至5,000，按重量计为5至25％具有游离或醇醚化的羟甲基的分解型甲醛型可固化的烯丙氧基苯 - 甲醛缩合物的重量和分子量小于1,000的可固化的烯丙氧基苯 - 甲醛缩合物和5至30重量％的可固化的三聚氰胺 - 甲醛缩合物与多于两个的醇 - 醚化的羟甲基和小于3,000的分子量，10至35重量％的上述环氧树脂被2,2-双（4-羟基苯基） - （4-羟基苯基） - 环氧基的环氧基缩聚物的反应产物代替，丙烷和表氯醇与3-羟甲基酰胺的可共聚的烯属不饱和羧酸的3至5个碳原子。由此产生的磁性层牢固地粘附到基底上，可容易地研磨和抛光，并且当使用磁盘时特别耐磨损。

2. 发明授权

US4018967A Magnetic recording tape 失效
标题翻译：磁记录磁带
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。

3. 发明授权

US4018968A Coated magnetic recording media 失效
标题翻译：涂层磁记录介质
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。

4. 发明授权

US4043297A Device for the magnetic orientation of magnetic recording media 失效
标题翻译：磁记录介质的磁性定向装置
公开(公告)号：US4043297A
公开(公告)日：1977-08-23
申请号：US731140
申请日：1976-10-12
申请人： Job-Werner Hartmann , Roland Falk , Aribert Krug , Georg Huber , Werner Balz , Karl Mahler
发明人： Job-Werner Hartmann , Roland Falk , Aribert Krug , Georg Huber , Werner Balz , Karl Mahler
IPC分类号： G11B5/845 , B05C11/00
CPC分类号： G11B5/845
摘要： A process and apparatus for producing magnetic discs in which the preferred direction of orientation of the anisotropic magnetic particles, contained in an organic binder system, is tangential to the circumference of the disc. Orientation is effected, prior to solidification of the magnetic layer, by the action of a magnetic field which is formed in the plane of symmetry between at least two pairs of magnetic poles, the poles of each pair being of the same polarity and opposite each other. One pair of poles flares out in cross section toward the plane of symmetry between the pairs of poles, whereas the other pair or pairs of poles of opposite polarity, when viewed in cross section, taper toward the said plane of symmetry to a point, the distance between the poles of such pair(s) being greater than that between the flared poles, and the plane of symmetry of the pairs of poles being in the plane of the disc. Using this process and apparatus, magnetic discs with a non-magnetic metallic base are obtained, in which the anisotropic magnetic particles in the layer of fluid binder applied to the base are oriented tangentially to the circumference of the disc during spin-coating.
摘要翻译：用于制造磁盘的方法和装置，其中包含在有机粘合剂系统中的各向异性磁性颗粒的优选取向方向与盘的圆周相切。在磁性层凝固之前，通过在至少两对磁极之间的对称平面中形成的磁场的作用来实现取向，每对磁极具有相同的极性并且彼此相对。一对电极的横截面向着两对极之间的对称平面展开，而相反极性的另一对或两对磁极在横截面看时，朝向所述对称平面逐渐变细为一点。这些对的极之间的距离大于扩张的极之间的距离，并且磁极对的对称平面在盘的平面中。使用该方法和装置，获得具有非磁性金属基底的磁盘，其中施加到基底的流体粘合剂层中的各向异性磁性颗粒在旋转涂覆期间与盘的圆周相切地定向。

5. 发明授权

US4243059A Method and device for determining the homogeneity of magnetic dispersions 失效
标题翻译：用于确定磁性分散体的均匀性的方法和装置
公开(公告)号：US4243059A
公开(公告)日：1981-01-06
申请号：US908446
申请日：1978-05-22
申请人： Fritz Hammon , Manfred Ohlinger , Job-Werner Hartmann
发明人： Fritz Hammon , Manfred Ohlinger , Job-Werner Hartmann
IPC分类号： G01R33/00 , G01N27/72 , G01N27/74 , G01R33/12 , G11B5/84 , G11B5/845
CPC分类号： G11B5/845 , G01R33/1207 , Y10T137/0324 , Y10T137/2579
摘要： In order to determine the homogeneity of a magnetic dispersion, part of the dispersion is conducted through a measuring cell prior to its application to a base, the size, number and type of those regions of the magnetic dispersion which interfere with the homogeneity being determined with the aid of magnetic measurements. The measuring cell contains a magnetic head, a magnetic dispersion is made to flow in a stream of constant cross section past the air gap of the magnetic head, and a magnetic field at least partially penetrating the magnetic dispersion is produced. From the characteristics of the amplified output voltage of the magnetic head the various parameters of the inhomogeneities in the magnetic dispersion can then be ascertained.
摘要翻译：为了确定磁性分散体的均匀性，分散体的一部分在施加到基底之前通过测量单元进行，磁性分散体的干扰均匀性的区域的尺寸，数量和类型由辅助磁测量。测量单元包含磁头，使磁性分散体以恒定横截面流过磁头的气隙，产生至少部分穿透磁性分散体的磁场。根据磁头的放大输出电压的特性，可以确定磁性色散中的不均匀性的各种参数。

6. 发明授权

US4200678A Flexible multilayer magnetic recording medium 失效
标题翻译：柔性多层磁记录介质
公开(公告)号：US4200678A
公开(公告)日：1980-04-29
申请号：US891541
申请日：1978-03-30
申请人： Philipp Pister , Franz Buettner , Fritz Hammon , Manfred Ohlinger , Heinz Stritzinger , Job-Werner Hartmann , Walter Schneider
发明人： Philipp Pister , Franz Buettner , Fritz Hammon , Manfred Ohlinger , Heinz Stritzinger , Job-Werner Hartmann , Walter Schneider
IPC分类号： G11B5/716 , H01F10/02
CPC分类号： G11B5/716 , Y10S428/90 , Y10T428/257
摘要： A flexible multilayer magnetic recording medium exhibiting an improved signal-to-print-through ratio coupled with an improved maximum output level and diminished dc noise, comprising a non-magnetic base and, applied thereto, at least two superposed layers consisting of a binder with magnetizable particles uniformly dispersed therein, the upper magnetic layer containing a magnetic pigment giving a signal-to-print-through ratio of less than 55db and the lower magnetic layer(s) containing a magnetic pigment giving a signal-to-print-through ratio of 55 db or more.
摘要翻译：一种柔性多层磁记录介质，其具有改善的信号与打印比，并且具有改善的最大输出电平和减小的直流噪声，包括非磁性基底，并施加至少两个由粘合剂组成的叠加层，可磁化颗粒均匀地分散在其中，上部磁性层含有磁性颜料，其信号与打印通过率小于55db，下部磁性层含有磁性颜料，给出信号与打印通过率为55db以上。

7. 发明授权

US4201486A Process for the manufacture of magnetic recording media 失效
标题翻译：磁记录介质制造工艺
公开(公告)号：US4201486A
公开(公告)日：1980-05-06
申请号：US905040
申请日：1978-05-11
申请人： Werner Huebner , Job-Werner Hartmann , Friedrich Domas , Peter Nagel , Paul Deigner , Eberhard Koester , Hans Hauser
发明人： Werner Huebner , Job-Werner Hartmann , Friedrich Domas , Peter Nagel , Paul Deigner , Eberhard Koester , Hans Hauser
IPC分类号： B01F7/10 , G11B5/84 , G11B5/842 , G11B5/848 , B01F15/02
CPC分类号： G11B5/842 , G11B5/848
摘要： A process and apparatus for the manufacture of magnetic recording media, in which, immediately before the magnetic dispersion is applied to a base, the dispersion is subjected to shear by means of a disc rotatably mounted in a housing, by introducing it at the center of rotation of the disc and forcing it through a gap formed between the face of the disc and the wall of the housing, which gap tapers toward the rim of the disc.
摘要翻译：一种用于制造磁记录介质的方法和装置，其中在将磁分散体施加到基底之前，将分散体通过可旋转地安装在壳体中的盘进行剪切，通过将其引入到盘的旋转并迫使其穿过形成在盘的表面和壳体的壁之间的间隙，该间隙朝向盘的边缘逐渐变细。

8. 发明授权

US4109046A Flexible multi-layer magnetic recording media 失效
标题翻译：柔性多层磁记录介质
公开(公告)号：US4109046A
公开(公告)日：1978-08-22
申请号：US747355
申请日：1976-12-03
申请人： Fritz Hammon , Manfred Ohlinger , Horst Grosselfinger , Heinz Stritzinger , Job-Werner Hartmann , Eduard Schoenafinger , Walter Schneider
发明人： Fritz Hammon , Manfred Ohlinger , Horst Grosselfinger , Heinz Stritzinger , Job-Werner Hartmann , Eduard Schoenafinger , Walter Schneider
IPC分类号： C09D5/23 , C09D7/12 , G11B5/706 , G11B5/716 , H01F10/02
CPC分类号： G11B5/70636 , Y10S428/90 , Y10T428/24975 , Y10T428/256 , Y10T428/265 , Y10T428/269
摘要： Flexible multi-layer magnetic recording media comprising a non-magnetic flexible base and, applied thereto, two superposed magnetizable layers which contain a homogeneous mixture of acicular magnetic chromium dioxide in an organic binder.According to the invention, the magnetizable layer adjacent to the base contains a chromium dioxide having a specific surface area, measured by the BET method, of from 15 to 25 m.sup.2 /g, while the outer magnetic layer contains a chromium dioxide having a specific surface area, measured by the BET method, of from 26 to 35 m.sup.2 /g.Such magnetic recording media are distinguished by uniformly high sensitivity over the entire audible frequency range even if close manufacturing tolerances are not maintained.

9. 发明授权

US3996407A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US3996407A
公开(公告)日：1976-12-07
申请号：US533973
申请日：1974-12-18
申请人： Egon Von Gross , Heinz Stritzinger , Job-Werner Hartmann , Manfred Steuerwald , Ursula Klein , Dieter Schaefer
发明人： Egon Von Gross , Heinz Stritzinger , Job-Werner Hartmann , Manfred Steuerwald , Ursula Klein , Dieter Schaefer
IPC分类号： C09D5/23 , G11B5/702 , B32B5/16 , B32B9/04
CPC分类号： G11B5/7023 , Y10T428/25 , Y10T428/257 , Y10T428/31663 , Y10T428/31667
摘要： Magnetic recording media comprising a non-magnetizable flexible base and a firmly adhering magnetic coating based on a dispersion, containing a silane, of a magnetic pigment in a polymeric binder, and a process for their manufacture. The silane is an aminoalkylsilane R.sub.n Si(OR').sub.4-n, wherein n is 1, 2 or 3, R' is alkyl of 1 to 8 carbon atoms and R is aminoalkyl of the formula with one or more primary and/or secondary amino groups and from 3 to 11 carbon atoms. Magnetic recording media comprising a magnetic coating containing such a silane exhibit better abrasion resistance and better electromagnetic properties than comparable coatings.
摘要翻译：磁性记录介质包括不可磁化的柔性基底和基于包含硅烷的分散体的牢固粘附的磁性涂层，所述分散体包含聚合物粘合剂中的磁性颜料及其制造方法。硅烷是氨基烷基硅烷RnSi（OR'）4-n，其中n是1,2或3，R'是1至8个碳原子的烷基，R是具有一个或多个伯和/或仲氨基的氨基烷基基团和3至11个碳原子。包含含有这种硅烷的磁性涂层的磁记录介质比同类涂层表现出更好的耐磨性和更好的电磁特性。

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