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公开(公告)号：US5264292A
公开(公告)日：1993-11-23
申请号：US754848
申请日：1991-09-04
IPC分类号： B32B7/02 , B32B7/06 , B32B9/00 , B32B27/18 , B42D15/10 , G06K19/06 , G11B5/716 , G11B5/73 , G11B5/738 , G11B5/80 , G11B5/84 , B32B5/16
CPC分类号： G11B5/716 , G11B5/738 , Y10S428/90 , Y10S428/914 , Y10T428/12028 , Y10T428/256
摘要： Transfer films consist essentially of a support film, a release layer and a transfer layer detachable from this release layer and composed of two magnetic layers and said transfer films may have, on the second magnetic layer, an adhesive layer which serves for fixing the transfer layer to a substrate, the two magnetic layers each containing a magnetizable material having a different coercive force.
摘要翻译： 转移膜基本上由支撑膜，释放层和可从该释放层分离并由两个磁性层组成的转移层组成，并且所述转移膜可以在第二磁性层上具有用于固定转印层的粘合剂层 对于基板，两个磁性层各自包含具有不同矫顽力的可磁化材料。
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公开(公告)号：US5496633A
公开(公告)日：1996-03-05
申请号：US735701
申请日：1991-07-25
CPC分类号： G11B5/84 , G11B5/7006 , Y10S283/904 , Y10S428/90 , Y10S428/914 , Y10S428/922 , Y10T428/31609
摘要： A transfer film having a magnetic layer consists essentially of a substrate film, a parting layer and a transfer layer which is detachable from the said parting layer and is formed by one or more magnetic layers, and, on that side of the magnetic layer which faces the substrate film, after detachment of the substrate film, the surface-forming layer consists of a top layer which contains inorganic pigments in a cross-linked polymer matrix and has a thickness of from 0.2 to 5.0 .mu.m and a surface resistance of from 10.sup.-1 to 10.sup.-8 ohm/cm.
摘要翻译： 具有磁性层的转印膜基本上由基材膜，分离层和转印层组成，该剥离层和转印层可从所述分离层拆卸并由一个或多个磁性层形成，并且在面向磁性层的那一侧 基板膜在剥离基板膜之后，表面形成层由交联聚合物基体中含有无机颜料的顶层构成，其厚度为0.2〜5.0μm，表面电阻为10 -1至10-8欧姆/厘米。
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3.发明授权
公开(公告)号：US4438462A
公开(公告)日：1984-03-20
申请号：US212629
申请日：1980-12-03
IPC分类号： G11B5/62 , C09D5/23 , C09D7/12 , G06K7/08 , G06K19/10 , G06K19/12 , G07D7/04 , G07D7/12 , G11B5/00 , G11B23/30 , G11B25/04
摘要： A process for authenticating recording media which are to be safeguarded against falsification and which possess a layer of exchange-anisotropic magnetic material, by determining the residual recording which is left over, because of the exchange anisotropy of the magnetic material, from a recording of a sequence of signals after exposure of the material to a specific temperature cycle and, subsequently, to a magnetic AC field which decreases to zero, and an apparatus for carrying out the said process.
摘要翻译： 通过确定由于磁性材料的交换各向异性而残留的剩余记录，通过确定由磁性材料的交换各向异性所确定的剩余记录，来鉴定要被防止伪造并且具有交换各向异性磁性材料层的记录介质的处理 在将材料暴露于特定温度循环之后的信号序列，以及随后到减小到零的磁性AC场，以及用于执行所述过程的装置。
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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
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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5.发明授权
公开(公告)号：US4396886A
公开(公告)日：1983-08-02
申请号：US212616
申请日：1980-12-03
摘要： A process for authenticating recording media which are to be safeguarded against falsification and which possess discrete regions of an exchange-anisotropic magnetic material, by comparison of the polarity of a residual magnetization which is left over, because of the exchange anisotropy of the magnetic material, from a predetermined initial magnetization after exposure of the material to a specific temperature cycle and, subsequently, to a magnetic AC field which decreases to zero, with the polarity of a residual magnetization formed in the same way from an opposite initial magnetization, and an apparatus for carrying out the said process.
摘要翻译： 由于磁性材料的交换各向异性，通过比较留下的剩余磁化的极性，进行认证记录介质的处理，以防止伪造并具有互换各向异性磁性材料的离散区域， 从材料暴露于特定温度循环之后的预定初始磁化，以及随后以相反的方式从相反的初始磁化形成的剩余磁化的极性降低到零的磁性AC场，以及装置 用于执行所述过程。
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公开(公告)号：US4272563A
公开(公告)日：1981-06-09
申请号：US765159
申请日：1977-02-03
申请人： Werner Steck , Werner Loeser , Manfred Steuerwald , Gerd Wunsch , Paul Deigner
发明人： Werner Steck , Werner Loeser , Manfred Steuerwald , Gerd Wunsch , Paul Deigner
摘要： A process for the manufacture of wear-resistant magnetic recording media comprising a dimensionally stable base, a thin ferromagnetic metal layer, containing cobalt and/or nickel, firmly bonded thereto and a thin protective layer applied thereon. The protective layer is produced by treating the recording medium in a liquid basic medium, containing gaseous oxygen, for from 1 to 60 minutes at from 5.degree. to 70.degree. C., washing and drying the treated recording medium and then heating it in air at from 170.degree. to 300.degree. C. This method offers a particularly simple way of providing the ferromagnetic layer of the recording medium with a thin but uniform, mechanically stable and wear-resistant protective layer.
摘要翻译： 一种用于制造耐磨磁记录介质的方法，其包括尺寸稳定的基底，与包含钴和/或镍的薄的铁磁金属层，其牢固地结合到其上并施加有薄的保护层。 保护层通过在含有气态氧的液体碱性介质中在5至70℃下处理记录介质1至60分钟来制备，洗涤和干燥经处理的记录介质，然后在空气中加热 从170℃到300℃。该方法提供了一种特别简单的方式来提供记录介质的铁磁层，其具有薄而均匀的机械稳定且耐磨的保护层。
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