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61. 发明授权

US4279990A Color photographic materials 失效
标题翻译：彩色摄影材料
公开(公告)号：US4279990A
公开(公告)日：1981-07-21
申请号：US185848
申请日：1980-09-10
申请人： Kozo Aoki , Nobuo Furutachi , Satoru Sawada
发明人： Kozo Aoki , Nobuo Furutachi , Satoru Sawada
IPC分类号： G03C7/26 , C07F7/18 , G03C1/06 , G03C7/392 , G03C1/40
CPC分类号： C07F7/1816 , G03C7/39288
摘要： Discoloring and fading of silver halide color photographic materials are effectively prevented by incorporating a compound of the formula (I) or (II) in a silver halide photographic layer thereof ##STR1## wherein A represents an aryl group; R.sub.1, R.sub.2 and R.sub.3 each represents hydrogen, a halogen atom, an alkyl group, or an aryl group, except that R.sub.1, R.sub.2 and R.sub.3 cannot all be hydrogen atoms; R.sub.4 and R.sub.5 each represents hydrogen, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an alkylthio group, an acyl group, an aryloxy group, a carboxy group, a sulfo group or a hydroxy group; and R.sub.6 and R.sub.7 each represents hydrogen, a halogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an acyl group, or a hydroxy group; or R.sub.6 and R.sub.7 together form an ##STR2## group or a 5-membered or 6-membered carbocyclic or heterocyclic ring.
摘要翻译：通过将式（I）或（II）的化合物并入其卤化银照相层中，其中A表示芳基（I）表示的卤化银照相材料，可有效地防止卤化银彩色照相材料的变色和褪色组; R1，R2和R3各自表示氢，卤素原子，烷基或芳基，不同之处在于R1，R2和R3不能全部为氢原子; R4和R5各自表示氢，卤素原子，烷基，芳基，烷氧基，烷硫基，酰基，芳氧基，羧基，磺基或羟基; R 6和R 7各自表示氢，卤素原子，烷基，芳基，烷氧基，芳氧基，烷硫基，酰基或羟基。或R6和R7一起形成基团或5元或6元碳环或杂环。

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