发明名称 Polycyclic dye.
摘要 <p>A polymorphic form of a dye of Formula (I): &lt;CHEM&gt; characterised by the x-ray diffraction pattern shown as Form 2 in Figure 3 having characteristic peaks at the following values of two-theta (degrees) 3.8(s), 5.7(m), 7.6(m), 9.6(w), 11.5(w), 13.5(w), 15.5(w), 17.3(w), 19.2(w), 26.2(w) and a process for preparation of the polymorphic form.</p>
申请公布号 EP0494537(A1) 申请公布日期 1992.07.15
申请号 EP19910311989 申请日期 1991.12.23
申请人 IMPERIAL CHEMICAL INDUSTRIES PLC 发明人 HOWE, GRAHAM;BULLOCK, JAMES FRANKLIN
分类号 C09B57/00;C09B67/48 主分类号 C09B57/00
代理机构 代理人
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