| 发明名称 |
Crystal polymorphs of C.I. Pigment Yellow 191 and their preparation |
| 摘要 |
C.I. Pigment Yellow 191 is obtained in new crystal polymorphs (beta, gamma, delta and epsilon phases) if the known alpha phase or another inventive phase of this pigment is treated with certain solvents and reprecipitated.
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| 申请公布号 |
US6602342(B2) |
申请公布日期 |
2003.08.05 |
| 申请号 |
US20010897565 |
申请日期 |
2001.07.02 |
| 申请人 |
CLARIANT GMBH |
发明人 |
SCHMIDT MARTIN U.;ACS ARPAD;JUNG RUEDIGER;SCHUI FRANZ |
| 分类号 |
G03G9/09;B41M5/00;C09B26/02;C09B63/00;C09B67/00;C09B67/10;C09B67/48;C09D5/03;C09D11/00;C09D201/00;G02B5/20;G02B5/22;(IPC1-7):C09B29/46 |
主分类号 |
G03G9/09 |
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