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公开(公告)号:US5928849A
公开(公告)日:1999-07-27
申请号:US688181
申请日:1996-07-31
摘要: A black and white photographic element contains a filter dye of Formula (I): ##STR1## wherein each R.sup.1 is independently substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, cyano, hydroxy, carboxy, substituted or unsubstituted amido, or substituted or unsubstituted sulfonamido;n is 1-4;R.sup.2 is H, substituted or unsubstituted alkyl or amido;each of R.sup.3 and R.sup.4 is independently hydrogen or substituted or unsubstituted alkyl; andM is a cation.
摘要翻译: 黑色和白色照相元件含有式(I)的过滤染料:其中每个R 1独立地为取代或未取代的烷基,取代或未取代的烷氧基,氰基,羟基,羧基,取代或未取代的酰氨基或取代或未取代的亚磺酰氨基; n为1-4; R2是H,取代或未取代的烷基或酰氨基; R 3和R 4各自独立地为氢或取代或未取代的烷基; 而M是阳离子。