- 专利标题： FLUORESCENT WHITENING AGENTS AND MIXTURES THEREOF
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申请号： EP16169981.4申请日： 2016-05-17
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公开(公告)号： EP3246321B1公开(公告)日： 2018-10-03
- 发明人: HAFERMANN, Marco , HAUSCHEL, Bernd , HUNKE, BERNHARD , LANSING, Theo , KRAEMER, Michael , PEEKHAUS, Robert
- 申请人： Blankophor GmbH & Co. KG
- 申请人地址： Schulstrasse 3 49577 Ankum DE
- 专利权人： Blankophor GmbH & Co. KG
- 当前专利权人： Blankophor GmbH & Co. KG
- 当前专利权人地址： Schulstrasse 3 49577 Ankum DE
- 代理机构： Lang, Johannes
- 主分类号： C09B23/14
- IPC分类号： C09B23/14 ; C07D251/70 ; D21H21/30
摘要：
The invention relates to novel fluorescent whitening agents, compositions or mixtures thereof with known fluorescent whitening agents, their preparation, and their use. The novel fluorescent whitening agents contain three structural subunits derived from 4,4'-diamino-2,2'-stilbenedisulfonic acid. The novel compounds and their mixtures with known FWAs show very good effectiveness as fluorescent whitening agents for cellulosic materials, in particular for paper.
公开/授权文献
- EP3246321A1 FLUORESCENT WHITENING AGENTS AND MIXTURES THEREOF 公开/授权日：2017-11-22
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