| 发明名称 |
PROCESS FOR THE PURIFICATION OF CRUDE POLYHALO COPPER PHTHALOCYANINES |
| 摘要 |
<p>Polyhalo copper phthalocyanines are purified in concentrated sulfuric acid under addition of peroxo compounds including addition compounds of hydrogen peroxide. The products are useful as pigments having very pure green shades and good fastness properties.</p> |
| 申请公布号 |
CA1033724(A) |
申请公布日期 |
1978.06.27 |
| 申请号 |
CA19750233546 |
申请日期 |
1975.08.15 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
ISCHE, FRIEDRICH;SPIETSCHKA, ERNST |
| 分类号 |
C09B47/10;C09B67/16;C09B67/54 |
主分类号 |
C09B47/10 |
| 代理机构 |
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