Optical recording medium
    1.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号:US06214519B1

    公开(公告)日:2001-04-10

    申请号:US09033654

    申请日:1998-03-03

    IPC分类号: B41M526

    摘要: An optical recording medium comprising a transparent substrate and at least a recording layer containing an organic dye, a reflecting metal layer and a protective layer sequentially laminated on the substrate in this order, which has the following characteristics (a) to (c): (a) the substrate has a tracking groove with a track pitch of from 0.7 to 1.0 &mgr;m and the recording layer shows a modulation amplitude of EFM signal of at least 50% when recording is carried out by a laser beam with a wavelength of from 600 to 700 nm, and has a reflectance of from 45 to 65%; (b) in a thermogravimetric analysis of the dye, the inclination of the weight reduction to the temperature in the main weight reduction process is at least 2%/°C.; and (c) in the thermogravimetric analysis of the dye, the total weight reduction in the main weight reduction process is at least 25%.

    摘要翻译: 一种光记录介质,其特征在于,具有透明基板和至少包含有机染料,反射金属层和保护层的顺序层叠在基板上的记录层,其具有以下特征(a)〜(c):( a)衬底具有轨迹间距为0.7至1.0μm的跟踪凹槽,并且当使用波长为600至500nm的激光束进行记录时,记录层显示至少50%的EFM信号的调制幅度 700nm,反射率为45至65%;(b)在染料的热重分析中,重量减轻至主要重量减少过程中的温度倾斜至少为2%/℃。 和(c)在染料的热重分析中,主要重量减少过程的总重量减少至少为25%。

    Fluorescent dyes
    2.
    发明授权
    Fluorescent dyes 失效
    荧光染料

    公开(公告)号:US4268671A

    公开(公告)日:1981-05-19

    申请号:US895948

    申请日:1978-04-13

    IPC分类号: C09B57/00 C09B57/12 D06P1/16

    CPC分类号: C09B57/12 C09B57/00

    摘要: Fluorescent dyes having the formula ##STR1## wherein R.sup.1 represents hydrogen, (C.sub.1 -C.sub.8) alkyl, trifluoromethyl, (C.sub.1 -C.sub.4) alkoxycarbonyl, (C.sub.1 -C.sub.4) alkoxycarbonyl (C.sub.1 -C.sub.4) alkyl, phenyl, or aralkyl group; R.sup.2 represents hydrogen, cyano, acyl, (C.sub.1 -C.sub.8) alkoxycarbonyl, (C.sub.1 -C.sub.4) alkoxy (C.sub.1 -C.sub.4) alkoxycarbonyl, (C.sub.1 -C.sub.4) alkoxy (C.sub.1 -C.sub.4) alkoxy (C.sub.1 -C.sub.4) alkoxycarbonyl, di(C.sub.1 -C.sub.4) alkylamino (C.sub.1 -C.sub.4) alkoxycarbonyl, cyclohexyloxycarbonyl, aryloxycarbonyl, benzyloxycarbonyl, tetrahydrofurfuryloxycarbonyl, carbamoyl, N-(C.sub.1 -C.sub.4) alkylcarbamoyl, N,N-di(C.sub.1 -C.sub.4)alkylcarbamoyl, N-phenylcarbamoyl, or morpholinocarbonyl group; and R.sup.3 and R.sup.4 can be the same or different and each represents hydrogen, (C.sub.1 -C.sub.8) alkyl, (C.sub.1 -C.sub.4) alkoxy(C.sub.1 -C.sub.4) alkyl, aralkyl or phenyl group which can be substituted by halogen atoms, (C.sub.1 -C.sub.4) alkyl groups, or (C.sub.1 -C.sub.4) alkoxy groups.

    摘要翻译: 具有式[IMAGE] [I]的荧光染料其中R1表示氢,(C1-C8)烷基,三氟甲基,(C1-C4)烷氧基羰基,(C1-C4)烷氧基羰基(C1-C4)烷基,苯基或芳烷基 ; (C1-C4)烷氧基(C1-C4)烷氧基羰基,(C1-C4)烷氧基(C1-C4)烷氧基(C1-C4)烷氧基羰基,二(C1 C 1 -C 4烷基氨基甲酰基,N-(C 1 -C 4)烷基氨基甲酰基,N-苯基氨基甲酰基或吗啉代羰基;(C 1 -C 4)烷基氨基(C 1 -C 4)烷氧基羰基,环己氧羰基,芳氧羰基,苄氧羰基,四氢呋喃氧基羰基,氨基甲酰基, (C1-C8)烷基,(C1-C4)烷氧基(C1-C4)烷基,可被卤素原子取代的芳烷基或苯基,(C1- C4)烷基或(C1-C4)烷氧基。