发明名称 |
Photographic products and processes employing azo dyes, azo dye-releasing compounds |
摘要 |
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a novel releasable azo dye. The dyes are azophenols, or precursors of azophenols, and have electron withdrawing groups in each of the positions ortho to the phenolic hydroxy group.
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申请公布号 |
US4156609(A) |
申请公布日期 |
1979.05.29 |
申请号 |
US19770850179 |
申请日期 |
1977.11.10 |
申请人 |
EASTMAN KODAK |
发明人 |
LANDHOLM, RICHARD A;ROBBINS, JERRY M |
分类号 |
C09B29/15;G03C8/10;(IPC1-7):G03C7/00;G03C1/40 |
主分类号 |
C09B29/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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