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公开(公告)号：US4487802A
公开(公告)日：1984-12-11
申请号：US459089
申请日：1983-01-19
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/265 , Y10T428/31797 , Y10T428/31931 , Y10T428/31938
摘要： A magnetic recording medium is disclosed. The medium is comprised of a non-magnetic flexible support having a subbing layer coated thereon with a magnetic layer coated on the subbing layer. The subbing layer is comprised of a copolymer of a diolefin and a vinyl monomer. The subbing layer provides excellent adhesiveness between the support and the magnetic layer and can be produced without the use of organic solvents. Accordingly, the subbing layer can be economically produced without environmental pollution.
摘要翻译： 公开了一种磁记录介质。 所述介质由非磁性柔性支撑体组成，其上涂覆有涂层在所述底层上的磁性层的底层。 底层由二烯烃和乙烯基单体的共聚物组成。 底层在支撑体和磁性层之间提供优异的粘合性，并且可以在不使用有机溶剂的情况下制造。 因此，可以经济地制造底层而没有环境污染。
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公开(公告)号：US4397911A
公开(公告)日：1983-08-09
申请号：US276746
申请日：1981-06-24
申请人： Goro Akashi , Masaaki Fujiyama
发明人： Goro Akashi , Masaaki Fujiyama
CPC分类号： G11B23/50 , G11B5/41 , Y10S428/90 , Y10T428/25 , Y10T428/254 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/266 , Y10T428/31786 , Y10T428/31797
摘要： Cleaning tape having a cleaning layer formed on one or both sides of a base is disclosed. Said cleaning layer is composed of (1) a binder, (2) an organic polymer powder whose particle size is 3.mu. or more, and (3) an inorganic solid powder whose particle size is 3.mu. or less.
摘要翻译： 公开了具有形成在基座的一侧或两侧上的清洁层的清洁带。 所述清洗层由（1）粘合剂，（2）粒径为3μm以上的有机聚合物粉末和（3）粒径为3μm以下的无机固体粉末构成。
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公开(公告)号：US4343831A
公开(公告)日：1982-08-10
申请号：US243666
申请日：1981-03-13
申请人： Nobuo Tsuji , Goro Akashi , Masaaki Fujiyama , Yasuyuki Yamada
发明人： Nobuo Tsuji , Goro Akashi , Masaaki Fujiyama , Yasuyuki Yamada
CPC分类号： G11B5/842 , G11B5/7026
摘要： A process for producing a magnetic recording medium is described comprising applying to a support a coating solution which has ferromagnetic particles dispersed in a solution comprising a binder curable by electron beams and a low-boiling point solvent, irradiating the support with electron beam radiation while the particles remain dispersed uniformly, and evaporating the solvent to dryness.
摘要翻译： 一种磁记录介质的制造方法，其特征在于，在支撑体上涂布具有分散在由电子束和低沸点溶剂固化的粘合剂的溶液中的铁磁性粒子的涂布液， 颗粒保持均匀分散，蒸发溶剂至干。
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公开(公告)号：US4337288A
公开(公告)日：1982-06-29
申请号：US207546
申请日：1980-11-17
CPC分类号： G11B5/7085 , Y10S428/90 , Y10T428/24612 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/31
摘要： A magnetic recording medium comprising a coated magnetic recording layer having video and chroma S/N ratios appropriately balanced with tape transporting characteristics is attained by controlling the magnetic layer to have a surface roughness such that the maximum value of the arithmetical average roughness (Ra) is about 80 A or greater in the surface roughness pitch region greater than about 300 .mu.m while in the surface roughness pitch region of about 5 .mu.m to about 100 .mu.m the maximum value of the arithmetical average roughness (Ra) is about 40 A or less.
摘要翻译： 通过控制磁性层具有表面粗糙度使得算术平均粗糙度（Ra）的最大值为（R）的方法来获得包括具有通过带传送特性适当平衡的视频和色度S / N比的涂覆磁记录层的磁记录介质 在大于约300μm的表面粗糙度间距区域中约80或更大，而在约5μm至约100μm的表面粗糙度间距区域中，算术平均粗糙度（Ra）的最大值为约40或 减。
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公开(公告)号：US4310599A
公开(公告)日：1982-01-12
申请号：US480332
申请日：1974-06-18
申请人： Goro Akashi , Masaaki Fujiyama
发明人： Goro Akashi , Masaaki Fujiyama
CPC分类号： G11B5/7305 , G11B5/72 , Y10S428/90 , Y10T428/31511 , Y10T428/31565 , Y10T428/31576 , Y10T428/31587 , Y10T428/31591 , Y10T428/31609 , Y10T428/31736 , Y10T428/31757 , Y10T428/31765 , Y10T428/31779 , Y10T428/31797 , Y10T428/31884 , Y10T428/31917 , Y10T428/3192 , Y10T428/31928
摘要： A magnetic recording element comprising a magnetic recording layer on a surface of a synthetic resin support and an antistatic layer on the opposite surface of said synthetic resin support, wherein said antistatic layer comprises a powder of a white or light-colored pigment and a powder of a carbon type electrically conductive substance in a binder, said pigment powder being substantially all in the outer surface portion of said antistatic layer and said electrically conductive powder being substantially all in the portion of said antistatic layer adjacent said support is disclosed.
摘要翻译： 一种磁性记录元件，包括在合成树脂载体的表面上的磁记录层和在所述合成树脂载体的相对表面上的抗静电层，其中所述抗静电层包含白色或浅色颜料的粉末和 公开了一种粘合剂中的碳型导电物质，所述颜料粉末基本上全部位于所述抗静电层的外表面部分中，并且所述导电粉末基本上全部位于与所述载体相邻的所述抗静电层的部分。
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公开(公告)号：US4273797A
公开(公告)日：1981-06-16
申请号：US30538
申请日：1979-04-16
IPC分类号： C09D177/00 , C09D127/06 , C09D163/00 , G11B5/708 , G11B5/73 , G11B5/735 , B05D5/12
摘要： A magnetic recording medium comprising a plastic film support having a magnetic recording layer on one side is provided with a backing layer containing: (1) a white and/or light colored powder; (2) carbon black and/or graphite; and (3) a polymeric binder. The backing layer transmits more than 3% of white light at a thickness of 2 microns and has a surface electrical resistance of less than 10.sup.10 .OMEGA./cm. Pinholes and drop-out are easily detected in forming such a magnetic recording medium.
摘要翻译： 包括在一侧具有磁记录层的塑料膜载体的磁记录介质设置有背衬层，其包含：（1）白色和/或浅色粉末; （2）炭黑和/或石墨; 和（3）聚合物粘合剂。 背衬层以2微米的厚度透过超过3％的白光，其表面电阻小于1010欧米加/厘米。 在形成这种磁记录介质时容易检测出针孔和脱落。
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27.发明授权Abrasive tape in which a single compound serves to improve dispersion of abrasive particles and also as antistatic and lubricant for the tape 失效研磨胶带，其中单一化合物用于改善磨料颗粒的分散，以及胶带的抗静电和润滑剂
公开(公告)号：US5089330A
公开(公告)日：1992-02-18
申请号：US642156
申请日：1991-01-17
CPC分类号： G11B5/84 , G11B5/1871 , G11B5/627 , Y10S428/90 , Y10T428/12993 , Y10T428/257
摘要： An abrasive tape comprises a flexible substrate and an abrasive layer which is overlaid on the flexible substrate and which contains abrasive grains, a binder, and an additive. The additive contains at least one kind of a compound represented by the general formula of ##STR1## where R.sub.1 represents a monovalent hydrocarbon group having six to 30 carbon atoms, or a fluorine-substituted alkyl group having one to 17 carbon atoms, R.sub.2 represents H or a monovalent alkyl group having one to three carbon atoms, X represents either one of ##STR2## where R.sub.3 is C.sub.3 F.sub.7 and n is an integer of 1 to 30.
摘要翻译： 研磨带包括柔性基底和覆盖在柔性基底上并含有磨料颗粒，粘合剂和添加剂的磨料层。 添加剂含有至少一种由通式为“IMAGE”表示的化合物，其中R1表示碳原子数为6〜30的一价烃基或碳原子数1〜17的氟取代烷基，R2表示H 或具有1至3个碳原子的一价烷基，X表示其中R 3为C 3 F 7且n为1至30的整数的
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公开(公告)号：US5009929A
公开(公告)日：1991-04-23
申请号：US533991
申请日：1990-03-26
申请人： Shinobu Iida , Masaaki Fujiyama , Keisuke Yamada
发明人： Shinobu Iida , Masaaki Fujiyama , Keisuke Yamada
IPC分类号： G11B5/84
CPC分类号： G11B5/84
摘要： A process for the preparation of a magnetic recording medium comprises the steps of subjecting a magnetic recording layer coated on a nonmagnetic support to surface smoothening treatment, said magnetic recording layer comprising a ferromagnetic powder dispersed in a binder, and then abrading a surface of the magnetic recording layer by means of an abrasive tape.
摘要翻译： 制备磁记录介质的方法包括以下步骤：将涂覆在非磁性载体上的磁记录层进行表面平滑处理，所述磁记录层包含分散在粘合剂中的铁磁性粉末，然后研磨磁性表面 记录层。
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公开(公告)号：US4937098A
公开(公告)日：1990-06-26
申请号：US340743
申请日：1989-04-20
申请人： Yasuo Nishikawa , Mikio Ohno , Masaaki Fujiyama , Tsutomu Okita
发明人： Yasuo Nishikawa , Mikio Ohno , Masaaki Fujiyama , Tsutomu Okita
CPC分类号： G11B5/712 , Y10S428/90
摘要： A method for manufacturing a magnetic recording medium is disclosed, comprising ferromagnetic alloy powders having an average length in the long axis of 0.3 .mu.m or less and a specific surface area (BET Method) of 45 m.sup.2 /g or more, by steps which comprise surface-treating the ferromagnetic alloy powders with at least one triazine thiol compound, dispersing the surface-treated powders in a binder, and then coating the binder containing the surface-treated powders on a nonmagnetic support, wherein the ferromagnetic alloy powders are surface-treated with a triazine thiol compound represented by formula (I) in a condition in which the moisture content of the ferromagnetic alloy powders is 0.5 wt % or less, in a system of substantially excluded moisture: ##STR1## wherein R represents R.sub.1 O--, R.sub.1 S--, R.sub.1 NH--, or R.sub.1 R.sub.2 N--R.sub.1 --, R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl, alkenyl, aryl, aralkyl, cycloalkyl or alkanol group having from 1 to 18 carbon atoms, and M.sub.1 and M.sub.2, which may be the same or different, each represents H, alkali metal or ammonium.
摘要翻译： 公开了一种磁记录介质的制造方法，其特征在于，包括长轴的平均长度为0.3μm以下，比表面积（BET法）为45m 2 / g以上的铁磁性合金粉末， 用至少一种三嗪硫醇化合物对铁磁性合金粉末进行表面处理，将表面处理的粉末分散在粘合剂中，然后将含有表面处理粉末的粘合剂涂布在非磁性载体上，其中将铁磁性合金粉末进行表面处理 在具有基本上排除的水分的体系中，在铁磁性合金粉末的水分含量为0.5重量％以下的条件下，由式（I）表示的三嗪硫醇化合物：其中R表示R 1 O- ，R1S-，R1NH-或R1R2N-R1，R1和R2可以相同或不同，表示具有1至18个碳原子的烷基，烯基，芳基，芳烷基，环烷基或链烷醇基，M1 和M2，w 其可以相同或不同，各自表示H，碱金属或铵。
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公开(公告)号：US4840842A
公开(公告)日：1989-06-20
申请号：US100857
申请日：1987-09-25
CPC分类号： G11B5/627 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259 , Y10T428/265 , Y10T428/31609 , Y10T428/31935
摘要： An abrasive tape comprises a flexible substrate, and an abrasive layer overlaid on the flexible substrate by applying an abrasive coating composition containing abrasive grains and a binder onto the flexible substrate and drying the applied abrasive coating composition. The binder contains a vinyl chloride resin having a --SO.sub.3 M group, where M represents Li, Na or K, and an epoxy group.
摘要翻译： 研磨带包括柔性基底和覆盖在柔性基底上的研磨层，通过将含有磨粒和粘合剂的磨料涂料组合物施加到柔性基底上并干燥所施加的磨料涂料组合物。 粘合剂含有具有-SO 3 M基团的氯乙烯树脂，其中M表示Li，Na或K和环氧基。
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