Optical recording medium
    8.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号:US4576896A

    公开(公告)日:1986-03-18

    申请号:US663946

    申请日:1984-10-23

    摘要: An optical recording medium comprising a transparent substrate of a synthetic resin and an information recording layer provided thereon, on which medium information can be optically written, read and erased by means of a laser light, wherein said transparent substrate consists essentially of a cast-cured product of an epoxy resin composition comprising an alicyclic epoxy resin, or a mixture of a major amount of an alicyclic epoxy resin and a minor amount of an aromatic epoxy resin, an organic polybasic acid anhydride, a curing-accelerator and an anti-discoloring agent.

    摘要翻译: 一种包括合成树脂的透明基板和设置在其上的信息记录层的光学记录介质,其上可通过激光光学地写入,读取和擦除介质信息,其中所述透明基板主要由铸造固化 包含脂环族环氧树脂或主要量的脂环族环氧树脂和少量芳族环氧树脂的混合物的环氧树脂组合物,有机多元酸酐,固化促进剂和防变色剂 。

    Process for producing substrate for optical recording medium
    9.
    发明授权
    Process for producing substrate for optical recording medium 失效
    光记录介质用基板的制造方法

    公开(公告)号:US4571314A

    公开(公告)日:1986-02-18

    申请号:US664018

    申请日:1984-10-23

    摘要: A process for producing a substrate for optical recording medium (optical disk recording medium), which comprises coating at least one inner surface of a casting mold with a radiation-curable or thermosetting resin, curing the resin to form a coating film on the mold surface or surfaces, casting into the mold an epoxy resin composition comprising an alicyclic epoxy resin or a mixture of an alicyclic epoxy resin and an aromatic epoxy resin, an organic polybasic acid anhydride, a curing accelerator and an anti-discoloring (anti-oxidative) agent, curing the epoxy resin composition to transfer the coating film of the mold to the surface of the cured product of the epoxy resin composition, thereby forming a double or triple layer cast laminate. The above casting mold may have a mold-releasing film on the inner surfaces and the coating film may be formed on this mold-releasing film.

    摘要翻译: 一种用于制造光记录介质(光盘记录介质)的基板的方法,其包括用辐射固化或热固性树脂涂覆铸模的至少一个内表面,固化树脂以在模具表面上形成涂膜 或表面,将包含脂环族环氧树脂或脂环族环氧树脂和芳族环氧树脂的混合物的环氧树脂组合物,有机多元酸酐,固化促进剂和抗变色(抗氧化剂)剂浇铸到模具中 固化环氧树脂组合物以将模具的涂膜转移到环氧树脂组合物的固化产物的表面,从而形成双层或三层铸塑层压板。 上述铸模可以在内表面上具有脱模膜,并且可以在该脱模膜上形成涂膜。