Optical recording medium containing an azulenium dye
    7.
    发明授权
    Optical recording medium containing an azulenium dye 失效
    含有薁染料的光学记录介质

    公开(公告)号:US4904566A

    公开(公告)日:1990-02-27

    申请号:US147909

    申请日:1988-01-25

    CPC分类号: G11B7/2463 Y10S430/146

    摘要: An optical recording medium composed of a base material and a laser light sensitive layer which contains an azulenium dye as storage material with or without a binder is obtainable by spin-coating a solution containing an azulenium dye of the formula ##STR1## where R is C.sub.1 -C.sub.6 -alkyl which may be substituted or unsubstituted, and n is 1, 2 or 3, with or without a binder and one or more solvents which have evaporation numbers of not less than 4 and in which an azulenium dye of the abovementioned formula has a solubility of not less than 5 g/l onto a transparent base material based on a plastics material or glass.

    摘要翻译: 由含有吖嗪染料作为储存材料的基材和激光敏感层组成的光学记录介质可以通过旋转涂布含有下式的az染料的溶液来获得:其中R是C1 可以是取代或未取代的C 1-6 - 烷基,n是1,2或3,具有或不具有粘合剂和一种或多种蒸发数不小于4的溶剂,并且其中上述式的薁染料具有 基于塑料材料或玻璃,透明基材上的溶解度不小于5g / l。

    Pigments
    8.
    发明授权
    Pigments 失效
    颜料

    公开(公告)号:US4851549A

    公开(公告)日:1989-07-25

    申请号:US235276

    申请日:1988-08-23

    摘要: Pigments of the general formulaF.multidot.Het (I)where F is the cation of a cationic dye which has an absorption maximum at >700 nm and may or may not contain anionic groups and Het is an anion of a heteropolyacid based on tungsten, molybdenum, vanadium or a mixture of these with phosphorus, silicon, cobalt, aluminum, manganese, chromium, nickel or a mixture of these or a copper(I)-hexacyanoferrate(II) anion, are superior to the known IR dyes in terms of thermal stability and photostability, and give optical recording media having superior properties, such as a high signal/noise ratio.

    摘要翻译: 通式为FxHet(I)的颜料,其中F为阳离子染料的阳离子,阳离子染料的吸收最大值> 700nm,可含或不含阴离子基团,Het为基于钨,钼,钒的杂多酸阴离子 或它们与磷,硅,钴,铝,锰,铬,镍或它们的混合物或铜(I) - 六氰基铁酸盐(II)阴离子的混合物在热稳定性方面优于已知的IR染料, 光稳定性,并且具有诸如高信号/噪声比等优异性能的光学记录介质。