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    Protective film for optical disks and optical disk using the same
    11.
    发明申请
    Protective film for optical disks and optical disk using the same 审中-公开
    光盘保护膜及使用其的光盘

    公开(公告)号：US20060153057A1

    公开(公告)日：2006-07-13

    申请号：US11302204

    申请日：2005-12-14

    申请人： Sou Miyata ,  Masahito Nakabayashi ,  Shin Kubota ,  Masahiko Sekiya

    发明人： Sou Miyata ,  Masahito Nakabayashi ,  Shin Kubota ,  Masahiko Sekiya

    IPC分类号： G11B7/24

    CPC分类号： G11B7/256 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B7/259 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B2007/25715 ,  G11B2007/25716

    摘要： There are disclosed a protective film for optical disks which comprises a light transmittable substrate film and a pressure sensitive adhesive layer formed on one side thereof, wherein the difference in refractive index between the light transmittable substrate film and the pressure sensitive adhesive layer is at most 0.08 and a gel fraction of the pressure sensitive adhesive layer is at least 65% by mass; and an optical disk in which the protective film is stuck onto an information recording layer via the pressure sensitive adhesive layer. The protective film for optical disks is used for the purpose of protecting the information recording layer for optical disks, particularly Blu-ray Discs, and is characterized in that it never exerts adverse influence on the recording characteristics of optical disks and besides, is capable of suppressing the corrosion of the metallic reflection film and information recording layer for optical disks. The above optical disk is highly reliable, and never brings about hindrance to the information recording and reproducing function.

    摘要翻译： 公开了一种用于光盘的保护膜，其包括透光性基材膜和在其一侧形成的压敏粘合剂层，其中可透光基材膜和压敏粘合剂层之间的折射率差最大为0.08 压敏粘合剂层的凝胶分数为65质量％以上。 以及其中保护膜经由压敏粘合剂层粘附到信息记录层上的光盘。 用于光盘的保护膜用于保护用于光盘的信息记录层，特别是蓝光盘的目的，其特征在于它不会对光盘的记录特性产生不利影响，此外，能够 抑制金属反射膜和光盘用信息记录层的腐蚀。 上述光盘是高度可靠的，从而不会妨碍信息记录和再现功能。