FLUOROPOLYETHER COMPOUND, LUBRICANT AND MAGNETIC DISK EACH CONTAINING THE SAME
    32.
    发明申请
    FLUOROPOLYETHER COMPOUND, LUBRICANT AND MAGNETIC DISK EACH CONTAINING THE SAME 有权
    氟橡胶复合物,润滑剂和磁性弹药盘

    公开(公告)号:US20120315504A1

    公开(公告)日:2012-12-13

    申请号:US13487443

    申请日:2012-06-04

    IPC分类号: C07C43/13 G11B5/725

    摘要: A compound of the formula (1), lubricant containing the compound and magnetic disk C6H4—(O—Z—R—X)2  (1) wherein Z is —CH2CH2O— or —CH2CH(OH)CH2O—, R is —CH2CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2CH2—, n is a real number of 0 to 20, X is —OH, —O(CH2)mOH, —OCH2CH(OH)CH2OH, —OCH2CH(OH)CH2O—C6H5 or —OCH2CH(OH)CH2O—C6H4—OCH3, m is an integer of 1 to 6.

    摘要翻译: 式(1)的化合物,含有化合物的润滑剂和其中Z为-CH 2 CH 2 O-或-CH 2 CH(OH)CH 2 O-的磁性体C 6 H 4 - (O-Z-R-X)2(1),R为-CH 2 CF 2 CF 2 CF 2 O (CF2CF2CF2CF2O)nCF2CF2CF2CH2-,n为0至20的实数,X为-OH,-O(CH2)mOH,-OCH2CH(OH)CH2OH,-OCH2CH(OH)CH2O-C6H5或-OCH2CH(OH)CH2O -C 6 H 4 -OCH 3,m为1〜6的整数。

    MAGNETIC RECORDING MEDIA AND MAGNETIC RECORDING SYSTEM
    34.
    发明申请
    MAGNETIC RECORDING MEDIA AND MAGNETIC RECORDING SYSTEM 有权
    磁记录介质和磁记录系统

    公开(公告)号:US20120008228A1

    公开(公告)日:2012-01-12

    申请号:US13178544

    申请日:2011-07-08

    IPC分类号: G11B5/65 G11B5/02 C07D403/12

    CPC分类号: G11B5/82 G11B5/725

    摘要: This invention provides a magnetic recording medium excellent in terms of corrosion resistance. The magnetic recording medium comprises a magnetic recording layer, a protective layer and a lubricant layer provided on a nonmagnetic substrate, and the lubricant layer comprises a compound having a heterocyclic ring.

    摘要翻译: 本发明提供了耐腐蚀性优异的磁记录介质。 磁记录介质包括设置在非磁性基底上的磁记录层,保护层和润滑层,润滑层包含具有杂环的化合物。

    LUBRICANT SUITABLE FOR USE WITH MAGNETIC DISK
    35.
    发明申请
    LUBRICANT SUITABLE FOR USE WITH MAGNETIC DISK 有权
    润滑剂适用于磁性磁盘

    公开(公告)号:US20110281780A1

    公开(公告)日:2011-11-17

    申请号:US13188423

    申请日:2011-07-21

    IPC分类号: C10M169/04

    CPC分类号: G11B5/725 G11B5/82

    摘要: A lubricant according to one embodiment includes a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.3, and said second ingredient being a second perfluoropolyether compound which has a weight-average molecular weight of 500 to 6000 and has 6 to 10 hydroxyl groups (on average) in one molecule, Rt-Rf1-Rt   (1) where, Rf1 denotes a perfluoropolyether chain represented by the formula (2) and Rt denotes a terminal group represented by the formula (3), —CF2O—[(CF2CF2O)m—(CF2O)n]—CF2—  (2) where, m and n each denote a natural number,

    摘要翻译: 根据一个实施方案的润滑剂包括第一成分和第二成分,所述第一成分作为主要成分是由式(1)表示的第一全氟聚醚化合物,其重均分子量为500至6000,分散度较小 并且所述第二成分是第二全氟聚醚化合物,其重均分子量为500-6000,并且在一个分子中具有6至10个羟基(平均)),Rt-Rf1-Rt(1)其中Rf1 表示由式(2)表示的全氟聚醚链,并且Rt表示由式(3)表示的端基,-CF 2 O - [(CF 2 CF 2 O)m - (CF 2 O)n] -CF 2 - (2)其中m和n 每个表示自然数,

    Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same
    37.
    发明授权
    Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same 有权
    用于磁盘的润滑剂,用于制造用于磁盘的润滑剂的方法及其制造方法

    公开(公告)号:US08012920B2

    公开(公告)日:2011-09-06

    申请号:US10586150

    申请日:2005-01-12

    申请人: Koichi Shimokawa

    发明人: Koichi Shimokawa

    摘要: The present invention provides a lubricant for forming a lubricating layer which is useful in preventing fly and stiction and/or corrosion at an extremely small flying height of 10 nm or less, which is prevented from migrating at a high rotational speed of 5400 rpm or more, which has high adhesion, and which is suitable for a load/unload method. A crude lubricant containing at least one perfluoropolyether is degassed and then purified. Alternatively, a liquid crude lubricant containing at least one perfluoropolyether is purified by vaporizing the crude lubricant and then liquefying the vapor of the perfluoropolyether within a distance less than the mean free path of molecules of the perfluoropolyether. A magnetic disk is prepared in such a manner that a carbonaceous protective layer is formed above a substrate and a lubricating layer is formed on the protective layer using of the lubricant. The lubricant contains the perfluoropolyether and has a molecular weight distribution of 1.3 or less.

    摘要翻译: 本发明提供一种用于形成润滑层的润滑剂,该润滑层可用于防止在10nm以下的飞散高度的极小的飞散和/或腐蚀,从而防止在5400rpm或更高的高转速下迁移 ,具有高附着力,适用于装卸方式。 将含有至少一种全氟聚醚的粗润滑油脱气,然后纯化。 或者,含有至少一种全氟聚醚的液体粗润滑油通过汽化粗润滑剂然后在小于全氟聚醚分子的平均自由程度的范围内液化全氟聚醚的蒸气而被纯化。 以这样的方式制备磁盘,即在基材上方形成碳质保护层,并且使用润滑剂在保护层上形成润滑层。 润滑剂含有全氟聚醚,分子量分布为1.3以下。

    Recordable disc with fluid bearing features
    38.
    发明授权
    Recordable disc with fluid bearing features 有权
    具有流体轴承特征的可记录盘

    公开(公告)号:US07957091B2

    公开(公告)日:2011-06-07

    申请号:US11656714

    申请日:2007-01-23

    IPC分类号: G11B17/02

    CPC分类号: G11B5/725 G11B33/123

    摘要: A device comprises a fluid bearing including a textured fluid bearing surface and a second surface and a recordable disc. The recordable disc includes a substrate, a recordable media layer on the substrate, and at least one of the textured fluid bearing surface and the second surface. The device may be manufactured using MEMS techniques. MEMS techniques provide the high precision necessary to create the textured fluid bearing surface. MEMS techniques also allow the recordable disc to be batch-fabricated with one or more additional recordable discs.

    摘要翻译: 一种装置包括流体轴承,其包括纹理流体支承表面和第二表面以及可记录盘。 可记录盘包括衬底,衬底上的可记录介质层以及纹理流体支承表面和第二表面中的至少一个。 该装置可以使用MEMS技术制造。 MEMS技术提供了创建纹理流体支承表面所需的高精度。 MEMS技术还允许可记录盘用一个或多个附加可记录盘批量制造。

    METHOD OF PRODUCING A PERPENDICULAR MAGNETIC RECORDING MEDIUM AND PERPENDICULAR MAGNETIC RECORDING MEDIUM
    40.
    发明申请
    METHOD OF PRODUCING A PERPENDICULAR MAGNETIC RECORDING MEDIUM AND PERPENDICULAR MAGNETIC RECORDING MEDIUM 失效
    全磁记录介质和全磁记录介质的生产方法

    公开(公告)号:US20110102944A1

    公开(公告)日:2011-05-05

    申请号:US12935215

    申请日:2009-03-24

    申请人: Kouta Suzuki

    发明人: Kouta Suzuki

    IPC分类号: G11B5/82 B05D5/08

    摘要: An object of the present invention is to provide a perpendicular magnetic recording medium including a suitable lubricating layer with sufficient durability, moisture resistance, and contamination resistance and also maintaining an R/W characteristic. In a typical structure of the present invention, a method of manufacturing a perpendicular magnetic recording medium 100 including a magnetic recording layer 122, a medium protective layer 126, and a lubricating layer 128 in this order on a base 110 includes: a CF bond density measuring step of measuring a CF bond density of a lubricant; and a lubricating layer forming step of forming a lubricating layer with the lubricant when the measured CF bond density is 2.0×1022 to 2.7×1022 atoms/cm3.

    摘要翻译: 本发明的目的是提供一种垂直磁记录介质,其包括具有足够的耐久性,耐湿性和耐污染性的合适的润滑层,并且还保持R / W特性。 在本发明的典型结构中,在基座110上依次制造包括磁记录层122,介质保护层126和润滑层128的垂直磁记录介质100的方法包括:CF键密度 测量润滑剂的CF键密度的测量步骤; 以及当测量的CF键密度为2.0×1022至2.7×1022原子/ cm3时,用润滑剂形成润滑层的润滑层形成步骤。