| 发明名称 |
Optical brighteners compositions their production and their use |
| 摘要 |
The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their concentrated aqueous solutions (S), their production and their use.
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| 申请公布号 |
US6890454(B2) |
申请公布日期 |
2005.05.10 |
| 申请号 |
US20030451818 |
申请日期 |
2003.06.25 |
| 申请人 |
CLARIANT FINANCE (BVI) LIMITED |
发明人 |
FARRAR JOHN MARTIN;JACKSON ANDREW CLIVE;TINDAL ALEC STEWART |
| 分类号 |
C09B67/22;C09B57/00;C11D3/42;D06L3/12;D21H21/30;(IPC1-7):C11D3/42 |
主分类号 |
C09B67/22 |
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