发明名称 |
PREPARATION OF BETA QUINACRIDONE PIGMENTS |
摘要 |
A novel method for the preparation of a beta quinacridone pigment is described by the oxidation of 6,13- dihydroquinacridone in the presence of polyvinyl pyrrolidone, a catalyst and optionally a particulate quinacridone and/or a particle growth inhibitor using hydrogen peroxide as the oxidant.
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申请公布号 |
KR20050084035(A) |
申请公布日期 |
2005.08.26 |
申请号 |
KR20057009703 |
申请日期 |
2005.05.27 |
申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
BABLER FRIDOLIN |
分类号 |
C09B48/00;(IPC1-7):C09B48/00 |
主分类号 |
C09B48/00 |
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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