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5 条记录 (耗时 0.009 秒)

    Biaxially oriented polyethylene-2,6-naphthalenedicarboxylate film and process for the production thereof
    2.
    发明公开
    Biaxially oriented polyethylene-2,6-naphthalenedicarboxylate film and process for the production thereof 失效
    双轴取向聚2,6-萘二甲酸和它们的制备方法的膜。

    公开(公告)号：EP0542511A2

    公开(公告)日：1993-05-19

    申请号：EP92310268.5

    申请日：1992-11-10

    申请人： TEIJIN LIMITED

    发明人： Hamano, Hisashi ,  Kobayashi, Ieyasu ,  Hosoi, Masahiro ,  Saeki, Yasuhiro

    IPC分类号： B29C55/12 ,  G11B5/704

    CPC分类号： C08J5/18 ,  B29C55/12 ,  B29K2067/00 ,  C08J2367/02 ,  G11B5/7305 ,  Y10T428/24372 ,  Y10T428/2495 ,  Y10T428/2913 ,  Y10T428/2982

    摘要： A biaxially oriented polyester film, (A) which is formed from polyethylene-2,6-naphthalenedicarboxylate containing 0.01 to 1 % by weight of inert solid fine particles having an average particle size of 0.05 to 3 ⁰m, (B) which has a refractive index, in a film thickness direction, of at least 1.498, and (C) which has a Young's modulus, at least in one direction, of at least 700 kg/mm²; and a process for the production thereof. This film is useful as a magnetic recording medium, particularly as a base film excellent in abrasion resistance and tear resistance.

    摘要翻译： 其由聚2,6-萘二甲酸含有0点01分至1重量％的具有上的0:05平均粒径为3 <0>米惰性固体细颗粒形成的双轴取向聚酯膜（A）所有的，（B）哪个 具有在膜厚方向上的折射率的至少1498，和（C），其具有的杨氏模量，在一个方向上至少，至少700公斤/毫米<2>; 和用于其生产的方法。 这个电影是作为磁记录介质是有用的，特别是作为基膜，具有优异的耐磨损性和耐撕裂性。

    Magnetic recording tape
    3.
    发明公开
    Magnetic recording tape 失效
    Magnetisches Aufzeichnungsband。

    公开(公告)号：EP0510893A1

    公开(公告)日：1992-10-28

    申请号：EP92303502.6

    申请日：1992-04-21

    申请人： TEIJIN LIMITED

    发明人： Etchu, Masami ,  Hamano, Hisashi ,  Hosoi, Masahiro ,  Kobayashi, Ieyasu ,  Saeki, Yasuhiro

    IPC分类号： G11B5/64

    CPC分类号： G11B5/7305 ,  G11B5/735

    摘要： A magnetic recording tape, in particular a VTR tape, comprising;

    (A) a substrate composed of a biaxially oriented polyethylene-2,6-naphthalate film of which

    (a) the Young' modulus in the longitudinal direction is at least 650 kg/mm², the Young' modulus in a transverse direction is the same as, or greater than, the Young's modulus in the longitudinal direction,
    (b) the heat shrinkage in the transverse direction is in the range of 1.0 to 3.0 % when treated at 100°C for 30 minutes,
    (c) the surface roughness, Ra, is not more than 0.005 µm, and
    (d) the amount of bled-out oligomer is not more than 0.01 area% when treated in air at 160°C for 5 minutes,

    (B) a thin magnetic metal layer formed on one surface of the substrate, and
    (C) a lubricant-containing thin organic polymer layer formed on the other surface of the substrate. This magnetic recording tape has high coercive force and excellent running durability and is capable of recording data at high density and high sensitivity for a long period of time.

    摘要翻译： 磁记录带，特别是VTR带，包括： （A）由双轴取向的聚2,6-萘二甲酸乙二醇酯薄膜构成的基材，（a）长度方向的杨氏模量为650kg / mm 2以上，横向的杨氏模量 与长度方向的杨氏模量相同或更大，（b）在100℃下处理30分钟时，横向的热收缩率为1.0〜3.0％，（c） 表面粗糙度Ra不大于0.005μm，（d）在空气中在160℃下处理5分钟时，（B）出料低聚物的量不大于0.01面积％，（B）薄的磁性金属 形成在基板的一个表面上的层，和（C）在基板的另一个表面上形成的含润滑剂的有机聚合物层。 该磁记录带具有高的矫顽力和优异的运行耐久性，并能够长时间记录高密度和高灵敏度的数据。 C