| 发明名称 |
MODIFICATION OF THE PROCESS FOR PREPARING COPPER PHTHALOCYANINE PIGMENTS OF THEO-MODIFICATION |
| 摘要 |
<p>This invention relates to a process for the preparation of a very pure copper phthalocyanine pigment of the alpha -modification which comprises dissolving crude copper phthalocyanine in a 80 to 86% sulfuric acid isolating the copper phthalocyanine sulfate formed, hydrolizing the sulfate and grinding the copper phthalocyanine thus obtained in an aqueous-organic medium.</p> |
| 申请公布号 |
IN142242(B) |
申请公布日期 |
1977.06.18 |
| 申请号 |
IN2642CA1974 |
申请日期 |
1974.11.27 |
| 申请人 |
HOECHST AG |
发明人 |
SPIETSCHKA E;TRONICH W;SCHIEBLER S |
| 分类号 |
C09B67/20;C09B67/16;C09B67/26;C09B67/50;(IPC1-7):C09B47/04;C09B47/08;C09B47/10;C09B62/00 |
主分类号 |
C09B67/20 |
| 代理机构 |
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代理人 |
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| 地址 |
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