| 发明名称 |
MODIFIED GAMMA-QUINACRIDONE PIGMENT |
| 摘要 |
A new gamma quinacridone polytype having a yellowish-red color and a distinc t X-ray diffraction pattern, said new form being prepared directly in high yield in pigmentary form by oxidation of 6,13-dihydroquinacridone in a basic dimethylsulfoxide medium .
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| 申请公布号 |
CA2076493(A1) |
申请公布日期 |
1993.02.23 |
| 申请号 |
CA19922076493 |
申请日期 |
1992.08.20 |
| 申请人 |
CIBA-GEIGY AG |
发明人 |
BAEBLER, FRIDOLIN;JAFFE, EDWARD E. |
| 分类号 |
C07D471/04;C09B5/38;C09B48/00;C09B67/22;C09B67/52;(IPC1-7):C09B48/00 |
主分类号 |
C07D471/04 |
| 代理机构 |
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