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。

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：US4029249A

公开(公告)日：1977-06-14

申请号：US612757

申请日：1975-09-12

申请人： Peter Nagel ,  Werner Grau ,  Hermann Maier ,  Heinrich Wittkamp ,  Roland Falk ,  Paul Willmann

发明人： Peter Nagel ,  Werner Grau ,  Hermann Maier ,  Heinrich Wittkamp ,  Roland Falk ,  Paul Willmann

IPC分类号： B65H20/12 ,  B65H27/00 ,  G11B5/84 ,  B65H17/30

CPC分类号： B65H27/00 ,  B65H20/12 ,  B65H2404/13162 ,  B65H2404/1363

摘要： A high-speed roller system for transporting webs of sheeting, preferably for coating the same with a magnetic layer, comprising a suction roller for control of the speed of the web, which suction roller has a surface containing grooves, preferably rhombic grooves, in which the perforations for sucking the sheeting are disposed, preferably at the points of intersection, the ratio of the total cross-sectional area of the perforations to the total surface area of the roller being from 0.7 to 3%.

摘要翻译： 一种高速辊系统，用于输送片材的片材，优选用于将其与磁性层一起涂覆，包括用于控制幅材速度的抽吸辊，该抽吸辊具有包含槽的表面，优选为菱形槽，其中 用于吸取片材的穿孔优选地设置在交点处，穿孔的总横截面面积与辊子的总表面积的比率为0.7-3％。

公开(公告)号：US4557947A

公开(公告)日：1985-12-10

申请号：US127085

申请日：1980-03-04

申请人： Karl Deimling ,  Roland Falk ,  Aribert Krug ,  Peter Nagel ,  Rudolf Sand

发明人： Karl Deimling ,  Roland Falk ,  Aribert Krug ,  Peter Nagel ,  Rudolf Sand

IPC分类号： C09G1/18 ,  C09G1/00

CPC分类号： C09G1/18

摘要： A process for polishing the ground surfaces of magnetic storage disks which consist of a rigid substrate provided on both sides with a firmly adhering magnetic coating consisting of a magnetic material finely dispersed in an organic polymer and conventional additives, by pressing felt rings or felt disks against the moving magnetic storage disk, to the surface of which an aqueous emulsion containing butyl acetate with or without butane-1,4-diol is applied.

摘要翻译： 一种用于抛光磁性存储盘的接地表面的方法，其由设置在两侧的刚性基板和由紧密粘附的磁性涂层组成，所述磁性涂层由微细分散在有机聚合物中的磁性材料和常规添加剂组成，通过将毡环或毡盘压靠在其上 移动的磁性存储盘，其表面涂覆含有或不含有丁烷-1,4-二醇的乙酸丁酯的水性乳液。

公开(公告)号：US4551359A

公开(公告)日：1985-11-05

申请号：US630181

申请日：1984-07-12

申请人： August Lehner ,  Joachim Hack ,  Karl Krucker ,  Werner Balz ,  Karl H. Roemer ,  Peter Rudolf ,  Roland Falk ,  Guenter Eckert

发明人： August Lehner ,  Joachim Hack ,  Karl Krucker ,  Werner Balz ,  Karl H. Roemer ,  Peter Rudolf ,  Roland Falk ,  Guenter Eckert

IPC分类号： G11B5/845 ,  C09D5/23 ,  G11B5/70 ,  G11B5/702 ,  G11B5/842 ,  G11B5/84

CPC分类号： G11B5/7028 ,  G11B5/7013

摘要： Magnetic recording media possessing a thin magnetic layer are produced by dispersing finely divided magnetically anisotropic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying a layer of the dispersion to a non-magnetizable base by means of a knife-coater, then, if required, orienting the magnetically anisotropic material by means of a magnetic field and drying the applied layer, a high molecular weight organic compound which acts as a thickener being added to the magnetic dispersion.

摘要翻译： 通过将细碎的磁各向异性材料和常规添加剂分散在聚合物粘合剂在有机溶剂中的溶液中，通过刀片式涂布将一层分散体施加到不可磁化的基底上来制造具有薄磁性层的磁记录介质， 涂布机，然后如果需要，通过磁场定向磁各向异性材料并干燥所施加的层，将作为增稠剂的高分子量有机化合物加入到磁性分散体中。

公开(公告)号：US4033288A

公开(公告)日：1977-07-05

申请号：US708602

申请日：1976-07-26

申请人： Josef Woellhaf ,  Werner Balz ,  Roland Falk ,  Dieter Scheffel ,  Volker Richter ,  Paul Willmann

发明人： Josef Woellhaf ,  Werner Balz ,  Roland Falk ,  Dieter Scheffel ,  Volker Richter ,  Paul Willmann

IPC分类号： B05C11/08 ,  B05D1/00 ,  G11B5/842

CPC分类号： G11B5/842 ,  B05C11/08 ,  B05D1/005

摘要： A disk to be coated on both sides in rotatively supported within an annular housing of a larger internal diameter. Means traverse and coat each side of the rotating disk. The inner housing wall is disposed transversely to the disk and has an annular slot operatively associated with the disk whereby excess coating material is spun off the disk and into the housing. The housing is radially of a triangular cross-section, the apex offset from said disk whereby said spun off material strikes an inclined internal wall surface of the housing. Means orbit a plurality of such disks about a central axis and through a plurality of movable treating stations.

摘要翻译： 将要涂覆在两侧的盘旋转地支撑在较大内径的环形壳体内。 意味着横穿和涂覆旋转盘的每一面。 内壳体壁横向于盘设置并且具有与盘可操作地相关联的环形槽，由此多余的涂层材料从盘旋转并进入壳体。 壳体径向为三角形横截面，顶点偏离所述盘，由此所述剥离材料撞击壳体的倾斜内壁表面。 围绕中心轴线并通过多个可动处理站绕多个这种盘轨道。