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    Laminated film and magnetic recording medium made therewith
    1.
    发明授权
    Laminated film and magnetic recording medium made therewith 失效
    层压膜和由其制成的磁记录介质

    公开(公告)号：US4568599A

    公开(公告)日：1986-02-04

    申请号：US473448

    申请日：1983-03-09

    申请人： Masaaki Ono ,  Yasuki Miura ,  Masahiko Motegi ,  Kazuo Okabe

    发明人： Masaaki Ono ,  Yasuki Miura ,  Masahiko Motegi ,  Kazuo Okabe

    IPC分类号： G11B5/64 ,  G11B5/72

    CPC分类号： G11B5/64 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24388 ,  Y10T428/24405 ,  Y10T428/24421 ,  Y10T428/24446 ,  Y10T428/24851 ,  Y10T428/31663 ,  Y10T428/31786 ,  Y10T428/31797 ,  Y10T428/31801

    摘要： A laminated film for a super-high density magnetic recording medium, which comprises (A) a layer composed of a thermoplastic resin and (B) a layer of a thermoplastic resin containing fine particles therein. In this laminated film, the outer surface of the layer (A) has a surface roughness of less than 0.005.mu. as expressed as the Ra value, and the outer surface of the layer (B) has a surface roughness of 0.005 to 0.040.mu. as expressed as the Ra value. The outer surface of the layer (B) has either (i) a plurality of depressions and a plurality of protrusions, which are formed thereon in a configuration such that at least one protrusion exists within each depression or at least one protrusion exists in the area where two or more depressions are contiguous to each other, or (ii) protrusions on a flat plane and a covering layer (C) composed of a lubricant, which is formed on the surface of the layer (B). This covering layer (C) may be formed on the surface having the above-mentioned depressions and protrusions. The covering layer (C) is a continuous film layer or a discontinuous film layer formed of worm-like nodules. When a ferromagnetic metal thin film is formed on the surface of the layer (A) by vacuum evaporation and a protective film layer is formed on this thin film, there is obtained a vacuum-deposited video tape excellent in running properties and electromagnetic transformation performance. In this vacuum-deposited video tape, the transfer of the surface configuration due to the coarseness of the running surface can be prevented.

    摘要翻译： 一种用于超高密度磁记录介质的叠层膜，其包含（A）由热塑性树脂构成的层和（B）含有微粒的热塑性树脂层。 在该层压膜中，层（A）的外表面的表面粗糙度表示为Ra值小于0.005μm，层（B）的外表面的表面粗糙度为0.005〜0.040μm， 表示为Ra值。 层（B）的外表面具有（i）多个凹部和多个突起，其形成在其上，使得在每个凹部内存在至少一个突起，或者在该区域中存在至少一个突起 其中两个或更多个凹陷彼此邻接，或（ii）平坦平面上的突起和由形成在层（B）的表面上的润滑剂构成的覆盖层（C）。 该覆盖层（C）可以形成在具有上述凹陷和突起的表面上。 覆盖层（C）是由蠕虫状结节形成的连续膜层或不连续膜层。 当通过真空蒸发在层（A）的表面上形成铁磁性金属薄膜并在该薄膜上形成保护膜层时，获得了运行性能和电磁转换性能优异的真空沉积磁带。 在这种真空沉积的录像带中，可以防止由于行驶表面的粗糙度导致的表面形状的传递。

    Base film for magnetic recording tape with F-5 values of 9-15 Kg/mm.sup.2
    3.
    发明授权
    Base film for magnetic recording tape with F-5 values of 9-15 Kg/mm.sup.2 失效
    F-5值为9-15 Kg / mm2的磁记录胶带底胶

    公开(公告)号：US4508782A

    公开(公告)日：1985-04-02

    申请号：US625185

    申请日：1984-06-27

    申请人： Yasuki Miura ,  Masahiko Motegi ,  Kazuo Okabe

    发明人： Yasuki Miura ,  Masahiko Motegi ,  Kazuo Okabe

    IPC分类号： G11B5/73 ,  H01F10/00

    CPC分类号： G11B5/7305 ,  Y10S428/91 ,  Y10T428/31

    摘要： A base film for a magnetic recording tape is provided, which possesses an F-5 value of 9-15 Kg/mm.sup.2 as measured along both the longitudinal and transverse directions and in which the ratio of the average surface roughness to the particle size of included particles is 2.0.times.10.sup.-3 to 5.1.times.10.sup.-3. The average surface roughness is preferably 0.005-0.040 micron. The magnetic recording tape made therefrom exhibits an improved running property and an improved abrasion resistance as well as good surface characteristics.

    摘要翻译： 提供一种用于磁记录带的基膜，其具有沿纵向和横向测量的9-15Kg / mm 2的F-5值，其中平均表面粗糙度与所包含的颗粒尺寸的比率 颗粒为2.0×10 -3〜5.1×10 -3。 平均表面粗糙度优选为0.005-0.040微米。 由此制成的磁记录带具有改进的运行性能和改进的耐磨性以及良好的表面特性。

    Resin composition
    8.
    发明授权
    Resin composition 失效
    树脂组成

    公开(公告)号：US06780944B1

    公开(公告)日：2004-08-24

    申请号：US09623486

    申请日：2000-09-15

    申请人： Yasuki Miura ,  Fukuo Kanno ,  Masataka Yokota

    发明人： Yasuki Miura ,  Fukuo Kanno ,  Masataka Yokota

    IPC分类号： C08F28300

    CPC分类号： C08L27/12 ,  C08L27/18 ,  C08L81/02 ,  C08L2666/14

    摘要： A resin composition which comprises from 50 to 99.5 parts by weight of a polyphenylene sulfide and from 0.5 to 50 parts by weight of a fluorinated resin having a solidification temperature of at least 237° C. when cooled at a cooling rate of 10° C./min after melting in a nitrogen atmosphere at 330° C., and from 0 to 250 parts by weight of a filler, etc. per 100 parts by weight of the two components.

    摘要翻译： 一种树脂组合物，其以10℃的冷却速度冷却时，包含50至99.5重量份的聚苯硫醚和0.5至50重量份的固化温度为至少237℃的氟化树脂。 /分钟，在氮气气氛中在330℃下熔融，和0-250重量份的填料等，相对于100重量份的两种组分。