发明名称 Photographic element containing yellow coupler
摘要 <p>Disclosed is a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler having Formula 1 &lt;CHEM&gt; wherein: X is hydrogen or a coupling-off group, and Y and Z are independently selected hydrogen or a substituent; R&lt;1&gt; is a substituent; and each R is an independently selected substituent with at least one R substituent located in the 2- or 5-position, and n is 1 to 3; provided that substituents may join to form a ring.</p>
申请公布号 EP0953875(A1) 申请公布日期 1999.11.03
申请号 EP19990201208 申请日期 1999.04.19
申请人 EASTMAN KODAK COMPANY 发明人 WELTER, THOMAS ROBERT;REYNOLDS, JAMES HENRY
分类号 C07D207/32;C07D207/337;G03C7/305;G03C7/36;(IPC1-7):G03C7/36 主分类号 C07D207/32
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