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发明名称
Optical sensitizing dyes
摘要
Dyes of the formula <IMAGE> wherein Y completes a benzothiazole or benzoselenazole nucleus, R1 is alkyl, R2 and R3 are hydrogen, alkyl or phenyl and Z is alkylene, are suitable for sensitizing fine grain silver halide emulsions.
申请公布号
US4804599(A)
申请公布日期
1989.02.14
申请号
US19880203524
申请日期
1988.05.24
申请人
CIBA-GEIGY AG
发明人
FICKEN, GEOFFREY E.
分类号
G03C1/18;C09B23/00;C09B23/01;G03C1/12;(IPC1-7):G03C1/10
主分类号
G03C1/18
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