Novel oxachalcogenazole dyes, processes for their preparation, and articles containing these dyes
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0192462A2
公开(公告)日:1986-08-27
Methine dyes are disclosed which contain a 2-halo or pseudohalo substituted 1,2,5-oxatellurazole ring fused with an aromatic nucleus, the aromatic nucleus being substituted with a methine linkage terminating in an auxochrome providing a conjugated resonance chromophore. The dyes can be formed by condensing a methine linkage precursor with a compound containing an oxatellurazole ring fused with an aromatic nucleus. The dyes are useful in optical recording elements and in photographic elements.
本发明公开了含有 2-卤或假卤取代的 1,2,5-氧杂脲唑环与芳香核融合的甲胺染料,芳香核被以辅助色素为端点的甲胺连接取代,从而形成共轭共振发色团。 这些染料可通过将甲胺连接前体与含有氧杂脲唑环与芳香核融合的化合物缩合而形成。 这些染料可用于光学记录元件和照相元件。