Thermally stable perfluoropolyether lubricant for recording media
    13.
    发明申请
    Thermally stable perfluoropolyether lubricant for recording media 失效
    用于记录介质的热稳定性全氟聚醚润滑剂

    公开(公告)号:US20050123855A1

    公开(公告)日:2005-06-09

    申请号:US10730843

    申请日:2003-12-09

    申请人: Ramon Hegel

    发明人: Ramon Hegel

    IPC分类号: G11B7/24

    摘要: The invention provides a lubricant useful in magnetic recording media and optical recording media comprising a functionalized perfluoropolyether comprising multiple acrylate endgroups. More specifically, the lubricant of the invention is a functionalized perfluoropolyether comprising at least about two acrylate groups. In one embodiment, the lubricant of the invention is a functionalized perfluoropolyether comprising a perfluoropolyether tetraacrylate. A magnetic recording medium is also provided comprising a thin metal magnetic recording layer, said layer having a coating of the functionalized perfluoropolyether lubricant comprising at least about three acrylate end groups. An optical recording medium including the functionalized perfluoropolyether lubricant includes at least one magneto-optical layer disposed between two protective layers further disposed between two substrate layers having interior and exterior surfaces, the exterior surface of at least one substrate layer bearing thereon a functionalized perfluoropolyether lubricant comprising a perfluoropolyether tetraacrylate.

    摘要翻译: 本发明提供了可用于磁记录介质的润滑剂和包含包含多个丙烯酸酯端基的官能化全氟聚醚的光学记录介质。 更具体地,本发明的润滑剂是包含至少约两个丙烯酸酯基团的官能化全氟聚醚。 在一个实施方案中,本发明的润滑剂是包含全氟聚醚四丙烯酸酯的官能化全氟聚醚。 还提供了包括薄金属磁记录层的磁记录介质,所述层具有包含至少约三个丙烯酸酯端基的官能化全氟聚醚润滑剂的涂层。 包括官能化全氟聚醚润滑剂的光学记录介质包括至少一个磁光层,其设置在两个保护层之间,该两个保护层进一步设置在具有内部和外部表面的两个基底层之间,至少一个基底层的外表面承载有功能化的全氟聚醚润滑剂, 全氟聚醚四丙烯酸酯。