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公开(公告)号：US4251843A
公开(公告)日：1981-02-17
申请号：US075546
申请日：1979-09-14
IPC分类号： G11B23/033 , G11B23/50 , G11B23/02 , G11B5/00
CPC分类号： G11B23/0332 , G11B23/505
摘要： The inner surface of a disc jacket for retaining a magnetic recording disc is provided with a fibrous layer containing an antistatic agent. The fibrous layer is composed of a nonwoven cloth impregnated with the antistatic agent. The antistatic agent may be applied to the nonwoven cloth by spraying instead of impregnation.
摘要翻译： 用于保持磁记录盘的盘套的内表面设置有含有抗静电剂的纤维层。 纤维层由浸渍有抗静电剂的无纺布组成。 可以通过喷涂而不是浸渍将抗静电剂施加到无纺布上。
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公开(公告)号：US4333988A
公开(公告)日：1982-06-08
申请号：US74469
申请日：1979-09-11
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31609 , Y10T428/31935
摘要： A recording medium and, more particularly, a recording medium based on a composition exhibiting high dispersibility for finely-divided ferromagnetic powders having excellent abrasion resistance is disclosed in which the magnetic composition comprises a finely-divided ferromagnetic powders dispersed in a binder containing 2-chloroacrylonitrile polymer and a polyurethane prepolymer; in another embodiment of the invention the magnetic composition additionally contains a polyisocyanate compound.
摘要翻译： 更具体地说，记录介质，特别是基于对具有优异耐磨性的细碎铁磁粉末显示高分散性的组合物的记录介质，其中磁性组合物包含分散在含有2-氯丙烯腈的粘合剂中的细碎铁磁粉末 聚合物和聚氨酯预聚物; 在本发明的另一个实施方案中，磁性组合物另外含有多异氰酸酯化合物。
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公开(公告)号：US4106067A
公开(公告)日：1978-08-08
申请号：US724430
申请日：1976-09-17
CPC分类号： G11B5/41
摘要： A cleaning jacket for a magnetic head used for flexible discs comprising a cleaning sheet and a sheet retaining jacket, the cleaning sheet comprising a flexible and non-magnetizable support, at least on one surface of which is provided an antistatic layer and on the other surface of which is provided a cleaning layer of a fibrous material, the retaining jacket having the shape of a flat casing and defining a space in which the cleaning sheet can be kept in such a manner that it can rotate freely therein, and, further, having a lubricating layer provided on the inner wall thereof facing the antistatic layer of the cleaning sheet.
摘要翻译： 一种用于用于柔性盘的磁头的清洁护套，包括清洁片和片材保持护套，所述清洁片包括柔性和不可磁化的支撑件，至少在其一个表面上设置有抗静电层，并且在另一表面上 其中提供了纤维材料的清洁层，该保持套具有扁平壳体的形状，并且限定了可以以可自由旋转的方式保持清洁片的空间，并且还具有 设置在面向清洁片的抗静电层的内壁上的润滑层。
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公开(公告)号：US4183976A
公开(公告)日：1980-01-15
申请号：US870146
申请日：1978-01-17
申请人： Yasuyuki Yamada , Tatsuji Kitamoto
发明人： Yasuyuki Yamada , Tatsuji Kitamoto
CPC分类号： G11B5/738
摘要： A process of producing a magnetic recording element comprising a non-magnetic support having provided thereon a subbing layer and further having provided thereon a magnetic layer comprising a ferromagnetic powder and a binder, in which the non-magnetic support is a biaxially stretched polyester and the subbing layer is formed by coating a coating solution having a solids concentration of about 0.8 to about 5 wt% comprising an amorphous linear saturated polyester resin containing an aromatic dicarboxylic acid, 10 to 50 wt% of a vinylidene chloride addition polymerizable nitrile copolymer based on the polyester resin and an organic solvent mainly composed of methyl ethyl ketone, which comprises coating the subbing solution at a temperature of about 100.degree. C. or below to provide a dry thickness of about 0.03 to about 2.0 .mu.m, drying the coated layer and then coating the magnetic recording layer thereon.
摘要翻译： 一种制造磁记录元件的方法，该磁记录元件包括非磁性载体，其上设置有一个底层，并且还设置有包含铁磁性粉末和粘合剂的磁性层，其中非磁性载体是双轴拉伸的聚酯， 通过涂布固体浓度为约0.8至约5重量％的涂布溶液，其包含含有芳族二羧酸的无定形线性饱和聚酯树脂，10至50重量％的偏二氯乙烯加成聚合性腈共聚物，基于 聚酯树脂和主要由甲基乙基酮组成的有机溶剂，其包括在约100℃或更低的温度下涂覆底层溶液以提供约0.03至约2.0μm的干燥厚度，干燥涂层，然后 在其上涂覆磁记录层。
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公开(公告)号：US4368237A
公开(公告)日：1983-01-11
申请号：US38620
申请日：1979-05-14
申请人： Yasuyuki Yamada , Tatsuji Kitamoto , Goro Akashi
发明人： Yasuyuki Yamada , Tatsuji Kitamoto , Goro Akashi
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31511 , Y10T428/31609 , Y10T428/31725 , Y10T428/31935
摘要： A magnetic recording material having superior abrasion resistance and thermal stability is produced by coating a magnetic coating composition consisting essentially of aqueous emulsions of at least two resin binders capable of reacting with each other upon mixing, and being present therein in the separated state, and a ferromagnetic powder on a non-magnetic support, drying the coating, and curing the resulting magnetic recording layer where drying is insufficient to effect curing. Hazards ascribable to the use of organic solvents in conventional techniques can be obviated by this invention.
摘要翻译： 具有优异的耐磨性和热稳定性的磁记录材料通过涂覆基本上由至少两种混合后能够彼此反应并且以分离状态存在的树脂粘合剂的水乳液组成的磁性涂料组合物， 铁磁粉末在非磁性载体上，干燥涂层，并固化所得到的磁记录层，其中干燥不足以实现固化。 本发明可以避免归因于常规技术中使用有机溶剂的危害。
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公开(公告)号：US4503119A
公开(公告)日：1985-03-05
申请号：US325939
申请日：1981-11-30
CPC分类号： H01F41/14 , G11B5/64 , G11B5/725 , Y10S428/90 , Y10T428/265 , Y10T428/273
摘要： A magnetic recording medium which is characterized by a lubricant present in channels diagonally extending through a magnetic metal thin film having a columnar structure formed by vapor deposition; this medium possesses improved running properties and abrasion resistance which last for an extended period of time.
摘要翻译： 一种磁记录介质，其特征在于存在于通过气相沉积形成的具有柱状结构的磁性金属薄膜的对角延伸的通道中的润滑剂; 该介质具有改善的运行性能和耐磨性，持续较长时间。
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公开(公告)号：US4414271A
公开(公告)日：1983-11-08
申请号：US352220
申请日：1982-02-25
IPC分类号： G11B5/66 , G11B5/64 , G11B5/65 , G11B5/702 , G11B5/71 , G11B5/72 , G11B5/84 , G11B5/85 , G11B5/851 , B32B5/16
CPC分类号： G11B5/851 , G11B5/64 , G11B5/702 , G11B5/71 , Y10S428/90 , Y10T428/256 , Y10T428/265
摘要： A magnetic recording medium comprising a substrate, a thin magnetic metal film having spaced-apart columnar grains deposited on the substrate, and a crosslinked organic polymer formed from a polymerizable organic compound and a curing agent in the spaces between the columnar grains and integrated therewith. The medium is prepared by impregnating the spaces between the columnar grains with a polymerizable organic compound and a curing agent and curing them in the spaces by the crosslinking reaction.
摘要翻译： 一种磁记录介质，包括基材，沉积在基材上的具有间隔开的柱状晶粒的薄磁性金属膜和由可聚合有机化合物形成的交联的有机聚合物和柱状颗粒之间的空间中的固化剂并与其结合。 通过将柱状颗粒之间的空间与可聚合有机化合物和固化剂浸渍并通过交联反应在空间中固化来制备介质。
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公开(公告)号：US4260466A
公开(公告)日：1981-04-07
申请号：US771583
申请日：1977-02-24
CPC分类号： G11B5/8416 , C23C14/06 , G11B5/851 , Y10S428/90 , Y10T428/31721
摘要： A method of producing a magnetic recording layer on a support comprising simultaneously depositing a ferromagnetic material and a polymer on a support using a vapor deposition technique such as vacuum deposition, sputtering, etc., thereby to produce thereon a magnetic recording layer of a composite film of the ferromagnetic material and the polymer. A further embodiment for producing a magnetic recording layer comprises simultaneously depositing a ferromagnetic material and a monomer or oligomer on the support using a vapor deposition technique, polymerizing the deposited layer, e.g., using a polymerization catalyst or by applying ionizing or electromagnetic rays thereto, to form a composite film of the ferromagnetic material and the polymer. The magnetic recording layer thus obtained in either embodiment can be used for high density recording.
摘要翻译： 一种在支撑体上制造磁记录层的方法，包括使用诸如真空沉积，溅射等的气相沉积技术在载体上同时沉积铁磁材料和聚合物，从而在其上制备复合膜的磁记录层 的铁磁材料和聚合物。 用于制造磁记录层的另一实施例包括使用气相沉积技术同时在支撑体上沉积铁磁材料和单体或低聚物，使沉积层聚合，例如使用聚合催化剂或通过向其施加电离或电磁辐射至 形成铁磁材料和聚合物的复合膜。 这样获得的磁记录层可用于高密度记录。
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公开(公告)号：US4588656A
公开(公告)日：1986-05-13
申请号：US352462
申请日：1982-02-25
IPC分类号： G11B5/66 , C10M107/38 , C10N40/18 , G11B5/64 , G11B5/65 , G11B5/702 , G11B5/71 , G11B5/72 , G11B5/725 , G11B5/85 , G11B5/851
CPC分类号： G11B5/64 , G11B5/702 , G11B5/71 , G11B5/851 , Y10S428/90
摘要： A magnetic recording medium comprising a substrate, a thin magnetic metal film having spaced-apart columnar grains deposited on the substrate, and an organic polymer formed in the space between the columnar grains and integrated therewith. The medium is prepared by impregnating the spaces between the columnar grains with organic monomers or oligomers and polymerizing them in the spaces.
摘要翻译： 一种磁记录介质，包括基板，沉积在基板上的具有间隔开的柱状晶粒的薄磁金属膜，以及形成在柱状晶粒之间的空间中并与之成一体的有机聚合物。 介质通过将柱状颗粒之间的空间用有机单体或低聚物浸渍并在空间中聚合来制备。
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10.发明授权Process for stabilization of ferromagnetic material and magnetic recording member 失效强磁性材料和磁记录元件的稳定化工艺
公开(公告)号：US4015030A
公开(公告)日：1977-03-29
申请号：US591681
申请日：1975-06-30
申请人： Koji Sasazawa , Yasuyuki Yamada , Tatsuji Kitamoto , Goro Akashi
发明人： Koji Sasazawa , Yasuyuki Yamada , Tatsuji Kitamoto , Goro Akashi
CPC分类号： G11B5/70694
摘要： A process for stabilizing a ferromagnetic material comprising heat-treating a needle-like ferromagnetic material represented by the formula MO.sub.x wherein M is a ferromagnetic metal ion or a ferromagnetic non-metal ion and another metal ion, and x is the degree of oxidation which ranges from 1.36 to 1.47, and containing at least 0.5 atom % Co, at a temperature of at least about 40.degree. C, and a process for stabilizing a magnetic recording member comprising heat-treating a magnetic recording member produced by providing a ferromagnetic recording layer comprising (a) a ferromagnetic material represented by the formula MO.sub.x wherein M and x are the same as defined above, and containing at least 0.5 atom % Co, and (b) a binder, on a support, at a temperature of at least about 40.degree. C.
摘要翻译： 一种用于稳定铁磁材料的方法，包括热处理由式MOx表示的针状铁磁材料，其中M是铁磁金属离子或铁磁性非金属离子和另一种金属离子，x是氧化程度 1.36至1.47，并且在至少约40℃的温度下含有至少0.5原子％的Co，以及用于稳定磁性记录元件的方法，该方法包括热处理通过提供铁磁性记录层产生的磁性记录元件，所述磁性记录元件包括 （a）由式MOx表示的铁磁材料，其中M和x与上述定义相同，并且在载体上至少包含至少约40的温度下含有至少0.5原子％的Co和（b）粘合剂 DEG C.
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