发明名称 Photographic silver halide emulsions - super-sensitised with sensitiser dye and styryl base combination
摘要 <p>Emulsion contains 0.01-0.5 g. sensitiser dye of formula (I): (where R1 and R5 each is lower alkyl; R2 and R3 each is H or lower alkoxy; R6 and R7 each is H, Cl, Br, lower alkyl or alkoxy; R4 and R8 are each lower opt. substd. alkyl; Y is S or Se and p is 1 for a betaine-like molecular structure, caused through presence of one -SO3H in R4 or R8, and 2 for a non-betaine-like molecular structure) together with 0.005-0.1 g. styryl base of formula (II): (where A are atoms needed to complete a heterocyclic ring and R9 and R10 each is lower alkyl), w.r.t.</p>
申请公布号 DE2218445(A1) 申请公布日期 1972.10.26
申请号 DE19722218445 申请日期 1972.04.17
申请人 发明人
分类号 G03C1/29 主分类号 G03C1/29
代理机构 代理人
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