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21 条记录 (耗时 0.015 秒)

    Magnetic recording medium
    3.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4752530A

    公开(公告)日：1988-06-21

    申请号：US795607

    申请日：1985-11-06

    申请人： Yasuyuki Yamada ,  Yoshito Mukaida

    发明人： Yasuyuki Yamada ,  Yoshito Mukaida

    IPC分类号： C08L75/04 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

    CPC分类号： G11B5/7022 ,  C08L75/04 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a magnetic layer including ferromagnetic powder and a binder comprising a polyurethane resin having a metal salt group of sulfonic acid and vinyl chloride/vinyl acetate-based copolymer containing from 0.2 wt. % to less than 1.5 wt. % of maleic acid. The magentic recording medium has reduced deterioration of the video S/N ratio under high temperature and high humidity.

    摘要翻译： 描述了一种磁记录介质，其包括非磁性载体，其上设置有包含铁磁粉末的磁性层和包含具有磺酸金属盐基团的聚氨酯树脂和含有0.2重量％的氯乙烯/乙酸乙烯酯基共聚物的粘合剂 。 ％至小于1.5wt。 ％的马来酸。 磁性记录介质在高温高湿下降低了视频S / N比的劣化。

    Magnetic recording medium
    4.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4444838A

    公开(公告)日：1984-04-24

    申请号：US387129

    申请日：1982-06-10

    申请人： Yasuyuki Yamada ,  Goro Akashi ,  Nobuo Tsuji ,  Yoshito Mukaida

    发明人： Yasuyuki Yamada ,  Goro Akashi ,  Nobuo Tsuji ,  Yoshito Mukaida

    IPC分类号： C08G18/64 ,  C09D5/23 ,  G11B5/702 ,  G11B5/70

    CPC分类号： C08G18/6484 ,  G11B5/7022 ,  Y10S428/90 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/31609 ,  Y10T428/31826 ,  Y10T428/31931

    摘要： A magnetic recording medium which comprises on a support base having coated thereon a magnetic layer containing a binder and a ferromagnetic fine powder dispersed in the binder is disclosed. The binder is comprised of a cellulose derivative having a residual OH group in a proportion of 7.5 to 40%, a diolefin or olefin series synthetic rubber and a polyisocyanate compound. The medium has excellent video sensitivity and video signal to noise ratio. The medium of the invention also have improved abrasion resistance.

    摘要翻译： 公开了一种磁记录介质，其包括在其上涂覆有包含粘合剂的磁性层的支撑基底和分散在粘合剂中的铁磁细粉末。 粘合剂由具有7.5〜40％的残留OH基的纤维素衍生物，二烯烃或烯烃系合成橡胶和多异氰酸酯化合物构成。 该介质具有出色的视频灵敏度和视频信噪比。 本发明的介质也具有改善的耐磨性。

    Process for producing a magnetic recording medium
    6.
    发明授权
    Process for producing a magnetic recording medium 失效
    磁记录介质的制造方法

    公开(公告)号：US4391851A

    公开(公告)日：1983-07-05

    申请号：US353791

    申请日：1982-03-02

    申请人： Yasuyuki Yamada ,  Goro Akashi ,  Nobuo Tsuji ,  Yoshito Mukaida ,  Masaaki Fujiyama

    发明人： Yasuyuki Yamada ,  Goro Akashi ,  Nobuo Tsuji ,  Yoshito Mukaida ,  Masaaki Fujiyama

    IPC分类号： G11B5/842 ,  G11B5/702 ,  G11B5/84 ,  H01F10/02

    CPC分类号： G11B5/84 ,  G11B5/7021

    摘要： A process for producing a magnetic recording medium is disclosed. The process involves coating a non-magnetic base with magnetic coating solution containing fine ferromagnetic particles and a binder comprising nitrocellulose, polyol and an isocyanate having at least two isocyanato groups. In the process, the web having 0.3 to 3 wt % of the residual solvent in the magnetic layer is calendered, and the calendered web is then dried thoroughly.

    摘要翻译： 公开了一种制造磁记录介质的方法。 该方法包括用含有细铁磁颗粒的磁性涂层溶液和包含硝化纤维素，多元醇和具有至少两个异氰酸酯基的异氰酸酯的粘合剂涂覆非磁性碱。 在该方法中，将磁性层中的残留溶剂的0.3〜3重量％的纤维网压延，然后将压延纤维网彻底干燥。

    Magnetic recording medium
    8.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4699844A

    公开(公告)日：1987-10-13

    申请号：US598097

    申请日：1984-04-09

    申请人： Tsutomu Okita ,  Nobuo Tsuji ,  Yoshito Mukaida

    发明人： Tsutomu Okita ,  Nobuo Tsuji ,  Yoshito Mukaida

    IPC分类号： C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/14 ,  G11B5/702 ,  G11B5/78

    CPC分类号： G11B5/7026 ,  G11B5/7022 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： A magnetic recording medium comprised of a support base having a magnetic recording provided thereon is disclosed. The recording layer is comprised of ferromagnetic particles dispersed in a binder. The binder includes (1) a vinyl chloride-vinyl alkanoate type copolymer containing --CO.sub.2 H group of 5.times.10.sup.-5 to 1.7.times.10.sup.-3 equivalent per g of the polymer, (2) urethane acrylate having a molecular weight in the range of from 20,000 to 300,000, and (3) a compound having at least two (meth)acryloyl groups in the molecule and having a molecular weight of 600 or less. The magnetic recording layer is irradiated with electron beams in order to harden the binder. The resulting medium has excellent electromagnetic properties and the magnetic coating composition prepared for making the magnetic recording layer has excellent stability during storage.

    摘要翻译： 公开了一种磁记录介质，包括其上提供有磁记录的支撑基座。 记录层由分散在粘合剂中的铁磁颗粒组成。 粘合剂包括（1）含有每10克聚合物5×10-5至1.7×10-3当量的-CO 2 H基的氯乙烯 - 乙烯基链烷酸酯型共聚物，（2）分子量范围为20,000至 300,000，和（3）在分子中具有至少两个（甲基）丙烯酰基并且分子量为600以下的化合物。 用电子束照射磁记录层，以使粘合剂硬化。 所得到的介质具有优异的电磁特性，并且制备用于制备磁记录层的磁性涂料组合物在储存期间具有优异的稳定性。

    Process for producing plasma polymerized film
    9.
    发明授权
    Process for producing plasma polymerized film 失效
    等离子体聚合膜的制造方法

    公开(公告)号：US4693799A

    公开(公告)日：1987-09-15

    申请号：US841183

    申请日：1986-03-19

    申请人： Kenji Yanagihara ,  Mituo Kimura ,  Masahiro Niinomi ,  Yasuo Nishikawa ,  Yoshito Mukaida

    发明人： Kenji Yanagihara ,  Mituo Kimura ,  Masahiro Niinomi ,  Yasuo Nishikawa ,  Yoshito Mukaida

    IPC分类号： C08G61/00 ,  B05D7/24 ,  C08G61/04 ,  C08G61/10 ,  C08G61/12 ,  C08G85/00 ,  C07C3/24 ,  C23B13/00

    CPC分类号： B05D1/62

    摘要： A process for producing a plasma polymerized film, which comprises forming a plasma polymerized film on the surface of a substrate placed in a reaction zone by subjecting an organic compound containing gas to plasma polymerization utilizing low temperature plasma formed by pulse discharging, in which the time for non-discharge condition is at least 1 msec. and the voltage rise time for gas breakdown is not longer than 100 msec. The plasma polymerized film obtained has a small coefficient of friction, high lubricity, durability and heat resistance and is useful as a solid lubricating film, etc.

    摘要翻译： 一种等离子体聚合薄膜的制造方法，其特征在于，包括通过使用通过脉冲放电形成的低温等离子体使含有气体的有机化合物进行等离子体聚合，在放置在反应区域的基板的表面上形成等离子体聚合膜， 对于非放电状态至少为1毫秒。 气体击穿的电压上升时间不超过100毫秒。 获得的等离子体聚合膜具有小的摩擦系数，高润滑性，耐久性和耐热性，并且可用作固体润滑膜等。