Infrared absorber dyes
    1.
    发明授权
    Infrared absorber dyes 失效
    红外吸收剂染料

    公开(公告)号:US5783377A

    公开(公告)日:1998-07-21

    申请号:US708861

    申请日:1996-09-04

    摘要: A photographic element having a light sensitive layer and containing a dye of the formula (I): ##STR1## wherein: X.sub.1 and X.sub.2 each independently represents the atoms necessary to complete a 5- or 6-membered heterocyclic nucleus; X.sub.3 represents the atoms necessary to form a 5- or 6-membered ring structure, which may be substituted; R.sub.1 and R.sub.2 each independently represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; R.sub.3 represents H, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; r and s independently are 0 or 1; and W represents one or more counterions as needed to balance the charge of the molecule.

    摘要翻译: 具有感光层并含有式(I)的染料的照相元件:其中:X 1和X 2各自独立地表示完成5-或6-元所需的原子 杂环核; X3表示形成可被取代的5-或6-元环结构所必需的原子; R 1和R 2各自独立地表示取代或未取代的烷基或取代或未取代的芳基; R3表示H,取代或未取代的烷基或取代或未取代的芳基; r和s独立地为0或1; 并且W代表平衡所述分子的电荷所需的一种或多种抗衡离子。