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16 条记录 (耗时 0.019 秒)

    Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position
    13.
    发明授权
    Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position 失效
    使用脂肪酸酯润滑剂的磁记录介质，其中醇组分在第一碳位分支

    公开(公告)号：US5030521A

    公开(公告)日：1991-07-09

    申请号：US183875

    申请日：1988-04-20

    申请人： Yasuo Nishikawa ,  Takao Ohya ,  Hajime Miyatsuka

    发明人： Yasuo Nishikawa ,  Takao Ohya ,  Hajime Miyatsuka

    IPC分类号： G11B5/708 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D131/04 ,  G11B5/702 ,  G11B5/71 ,  G11B5/72 ,  G11B5/725

    CPC分类号： G11B5/71 ,  G11B5/702

    摘要： A magnetic recording medium comprises a nonmagnetic support and a magnetic recording layer containing a ferromagnetic powder which is provided on the support. The magnetic recording layer contains a binder resin having a acid residue or a salt thereof and a fatty acid ester compound having the formula (I): ##STR1## wherein R is a hydrocarbon group having 11-21 carbon atoms, R.sup.1 is hydrogen atom or a hydrocarbon group having 1-3 carbon atoms, and R.sup.2 and R.sup.3 are the same or different and each is a hydrocarbon group having 1-8 carbon atoms. The total number of carbon atoms contained in R.sup.1, R.sup.2 and R.sup.3 being not less than 3 carbon atoms. Alternatively, the fatty acid ester can be coated on the magnetic layer.

    摘要翻译： 磁记录介质包括非磁性载体和含有设置在载体上的铁磁性粉末的磁记录层。 磁记录层含有具有酸残基或其盐的粘合剂树脂和具有式（I）的脂肪酸酯化合物：其中R是具有11-21个碳原子的烃基，R1是 氢原子或具有1-3个碳原子的烃基，R2和R3相同或不同，并且各自为具有1-8个碳原子的烃基。 R1，R2和R3中含有的碳原子总数不少于3个碳原子。 或者，脂肪酸酯可以涂覆在磁性层上。

    Magnetic recording medium
    14.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4798755A

    公开(公告)日：1989-01-17

    申请号：US857872

    申请日：1986-05-01

    申请人： Yasuyuki Yamada ,  Hajime Miyatsuka

    发明人： Yasuyuki Yamada ,  Hajime Miyatsuka

    IPC分类号： G11B5/702 ,  G11B5/716

    CPC分类号： G11B5/7022 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： A magnetic recording medium is disclosed, comprising a non-magnetic support having provided on one side thereof a magnetic recording layer comprising a binder having dispersed therein fine ferromagnetic particles and on the other side thereof a backing layer, wherein at least one of said magnetic layer and backing layer contains (1) a vinyl chloride resin having --SO.sub.3 M (wherein M is Li, Na, or K) groups and epoxy groups, and (2) polyurethane as binders. The medium has reduced output variation and improved running durability.

    摘要翻译： 公开了一种磁记录介质，其包括非磁性载体，该非磁性载体的一侧设置有磁记录层，所述磁记录层包括分散有细小铁磁性颗粒的粘合剂，其另一侧具有背衬层，其中所述磁性层 背衬层含有（1）具有-SO 3 M（其中M为Li，Na或K）基团和环氧基的氯乙烯树脂，和（2）作为粘合剂的聚氨酯。 该介质具有减少的输出变化和改善的运行耐久性。

    Magnetic recording medium
    15.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4555431A

    公开(公告)日：1985-11-26

    申请号：US576990

    申请日：1984-02-06

    申请人： Hajime Miyatsuka

    发明人： Hajime Miyatsuka

    IPC分类号： C09D5/23 ,  C09D7/12 ,  G11B5/706 ,  G11B5/714 ,  G11B5/73 ,  G11B5/735 ,  G11B5/738 ,  G11B5/72

    CPC分类号： G11B5/70605 ,  G11B5/714 ,  G11B5/738 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： The tape running property of a magnetic recording medium is improved by provision a back layer. This magnetic recording medium comprises a magnetic layer on one side of a non-magnetic support and a back layer on the other side thereof, in which the magnetic layer consists mainly of a ferromagnetic metal powder and a binder and has a coercive force of at least 1000 Oe and a surface roughness of at most 0.03 .mu.m, the ferromagnetic metal powder having a specific surface area of at least 35 m.sup.2 /gr and a saturation magnetization of at least 120 emu/gr, while the back layer has a surface electric resistance of at most 1.times.10.sup.10 .OMEGA. and a surface roughness of at most 0.05 .mu.m.

    摘要翻译： 通过提供背层来提高磁记录介质的磁带运行性能。 该磁记录介质包括在非磁性载体的一侧上的磁性层和另一侧的背层，其中磁性层主要由铁磁性金属粉末和粘合剂组成，并且至少具有矫顽力 1000Oe，表面粗糙度为0.03μm以下，强磁性金属粉末的比表面积为35m 2 / g以上，饱和磁化强度为至少120emu / gr，而背层具有表面电阻 最多为1×10 10个OMEGA，表面粗糙度为0.05μm以下。

    Method of providing an electrophotographic coating and compositions for the method
    16.
    发明授权
    Method of providing an electrophotographic coating and compositions for the method 失效
    提供电子照相涂层的方法和该方法的组合物

    公开(公告)号：US3944682A

    公开(公告)日：1976-03-16

    申请号：US415597

    申请日：1973-11-14

    申请人： Hajime Miyatsuka ,  Satoru Honjo ,  Kenichi Sawada ,  Takashi Saida

    发明人： Hajime Miyatsuka ,  Satoru Honjo ,  Kenichi Sawada ,  Takashi Saida

    IPC分类号： C23G1/02 ,  G03G5/00 ,  G03G5/05 ,  G03G5/087 ,  G03G15/22 ,  B05D5/12

    CPC分类号： G03G5/0592 ,  G03G5/087

    摘要： A method of forming an electrophotographic coating which includes preparing a mixture which comprises finely divided photoconductive material dispersed in an organic resin binder. The resin, which exhibits an acid value of at least 3, or a hydroxyl value of at least 15, is heat-treated for a time and temperature enclosed within the area ABCDEFGH of the temperature-treating diagram shown in the accompanying drawing. Following this treatment, the mixture is dissolved in a volatile solvent for the binder resin, and the dispersion is coated onto a conductive backing to form a substantially uniform layer.

    摘要翻译： 一种形成电子照相涂层的方法，其包括制备包含分散在有机树脂粘合剂中的细分光导材料的混合物。 将酸值至少为3或羟基值至少为15的树脂在封闭在附图所示的温度处理图的区域ABCDEFGH内的时间和温度下进行热处理。 在该处理之后，将混合物溶解在用于粘合剂树脂的挥发性溶剂中，并将分散体涂覆到导电背衬上以形成基本均匀的层。