| 发明名称 |
Modified gamma-quinacridone pigment. |
| 摘要 |
A new gamma quinacridone polytype having a yellowish-red color and a distinct 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 |
EP0530143(A1) |
申请公布日期 |
1993.03.03 |
| 申请号 |
EP19920810622 |
申请日期 |
1992.08.13 |
| 申请人 |
CIBA-GEIGY AG |
发明人 |
BAEBLER, FRIDOLIN, DR.;JAFFE, EDWARD E., DR. |
| 分类号 |
C07D471/04;C09B5/38;C09B48/00;C09B67/22;C09B67/52 |
主分类号 |
C07D471/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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