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    Optical disc base plate and process for producing the same
    3.
    发明公开
    Optical disc base plate and process for producing the same 失效
    光盘基板及其制造方法

    公开(公告)号：EP0211330A3

    公开(公告)日：1988-01-07

    申请号：EP86110129

    申请日：1986-07-23

    申请人： HITACHI, LTD. ,  Hitachi Maxell Ltd.

    发明人： Sudo, Ryoichi ,  Miwa, Hiroaki ,  Tajima, Tetsuo

    IPC分类号： G11B07/24

    CPC分类号： B29D17/005 ,  B29C37/005 ,  B29C2035/0827 ,  G11B7/2433 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2578 ,  G11B7/263

    摘要： The invention discloses an optical disc base plate obtained by curing with irradiation of light a light- or radiation-curable resin composition in which a photopolymerization initiator is contained in an amount of 0.5 to 5 parts by weight per 100 parts by weight of a resin composition comprising the compounds (1), (2) and (3) mixed in amounts falling in the area defined by lines A-B-C-D-E-A in the triangular diagram of Fig. 1, and a process for producing an optical disc base plate which comprises arranging a stamper carrying an information pattern thereon and a light-transmittable flat plate in opposition to each other so as to form a space there­between, dividing said space into a main space and a resin reservoiring space by a notching ring provided to the light-transmittable plate so as to form a small clear­ance at a part of the space, casting a light-curable resin into the entirety of the main space and a part of the resin reservoiring space from an inlet, and curing the resin by irradiation of energy from an external energy source.

    Optical disc base plate
    4.
    发明公开
    Optical disc base plate 失效
    Matrizenplattefüreine optische Platte。

    公开(公告)号：EP0182585A2

    公开(公告)日：1986-05-28

    申请号：EP85308225.3

    申请日：1985-11-12

    申请人： HITACHI, LTD. ,  Hitachi Maxell Ltd.

    发明人： Tajima, Tetsuo ,  Miwa, Hiroaki ,  Sudo, Ryoichi

    IPC分类号： C08F20/30 ,  G11B7/24

    CPC分类号： G11B7/2535 ,  C08F20/30 ,  G11B7/2433 ,  G11B7/2531 ,  G11B7/2534 ,  G11B7/256 ,  Y10S430/146

    摘要： An ultraviolet-curable resin composition for producing an optical disc base plate comprising at least one compound selected from the compounds of the formulae:


    and
    wherein R 1 is hydrogen or a halogen; R 2 is an alkyl group having 1 to 12 carbon atoms; R 3 is hydrogen or a methyl group; m and n are independently an integer of 1 to 4, and a photopolymerization initiator.
    The cured resin is used as a primer layer on a transparent substrate or as the transparent substrate for optical discs.

    摘要翻译： 一种用于制造光盘基板的紫外线固化树脂组合物，其包含至少一种选自下式的化合物的化合物：其中R 1是氢或卤素; R2是具有1至12个碳原子的烷基; R3是氢或甲基; m和n分别为1〜4的整数和光聚合引发剂。 ...固化树脂用作透明基板上的底漆层或​​用作光盘的透明基板。

    Optical disc
    10.
    发明公开
    Optical disc 失效
    光盘

    公开(公告)号：EP0213307A2

    公开(公告)日：1987-03-11

    申请号：EP86108789.8

    申请日：1986-06-27

    申请人： HITACHI, LTD. ,  Hitachi Maxell Ltd.

    发明人： Tajima, Tetsuo ,  Miwa, Hiroaki ,  Sudo, Ryoichi ,  Horigome, Shinkichi

    IPC分类号： G11B7/24

    CPC分类号： G11B7/256 ,  G11B7/2531 ,  G11B7/2533 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146 ,  Y10T428/31605

    摘要： Optical discs obtained by using as a primer layer formed on a transparent substrate and under a metal-made recording film a cured ultraviolet-curable resin composition comprising (a) a reaction product of isophorone diiso­cyanate or the like and an acrylate or methacrylate, (b) a diacrylate or dimethacrylate and (c) a photopolymerization initiator are excellent in recording sensitivity, moisture resistance, heat resistance, adhesive properties, reliability, etc.

    摘要翻译： 通过使用在透明基材上和在金属制成的记录膜下面形成的底漆层而获得的光盘，其包含（a）异佛尔酮二异氰酸酯等与丙烯酸酯或甲基丙烯酸酯的反应产物，（b） ）二丙烯酸酯或二甲基丙烯酸酯和（c）光聚合引发剂在记录灵敏度，耐湿性，耐热性，粘合性，可靠性等方面优异。