| 发明名称 | Azo dyes | ||
| 摘要 | The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades. | ||
| 申请公布号 | US9023118(B2) | 申请公布日期 | 2015.05.05 |
| 申请号 | US201113882856 | 申请日期 | 2011.11.29 |
| 申请人 | Kemira OYJ | 发明人 | Meier Helmut-Martin;Heide Christof;Strumpf Klaus-Günter;Hübbe Thomas |
| 分类号 | C09B31/043;C09B31/047;C09B31/053;C09B31/057;C09B31/16;C09B31/18;C09B31/28;D06P3/60;D06P3/24;D06P1/02;D06P1/04;D06P1/06;C09B31/26;C09B31/20;D21H21/28 | 主分类号 | C09B31/043 |
| 代理机构 | Thomas Horstemeyer, LLP | 代理人 | Thomas Horstemeyer, LLP |
| 主权项 | 1. A compound of formula (1)wherein A represents and B representsor A and B, independently of each other, represent one of the following groups: wherein R1, R2, R3, and R4, independently of each other, represent hydrogen, substituted or unsubstituted C1-C4 alkyl, substituted or unsubstituted C1-C4 alkoxy, substituted or unsubstituted aryl, substituted or unsubstituted phenyl, amino, sulfonic, carboxyl, hydroxyl, nitro or halogen groups, wherein at least one of R2 and R3 is a sulfonic group. | ||
| 地址 | Helsinki FI | ||