| 发明名称 |
Preparation of C.I. Vat Blue 16 |
| 摘要 |
The dye is obtained by alkylating 16,17-dihydroxyviolanthrene-5,10-dione in a tertiary aliphatic or cycloaliphatic amine as solvent at from 100 DEG to 230 DEG C. in high yield and high purity.
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| 申请公布号 |
US4824608(A) |
申请公布日期 |
1989.04.25 |
| 申请号 |
US19870091846 |
申请日期 |
1987.09.01 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HELWIG, REINHARD;HOCH, HELMUT |
| 分类号 |
C09B3/22;C09B3/30;(IPC1-7):C09B3/22 |
主分类号 |
C09B3/22 |
| 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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