发明授权
US5437818A Hydrates of the disodium salt or dipotassium salt of
4,4'-bis(2-sulfostyryl)biphenyl
失效
4,4'-双（2-磺基苯乙烯基）联苯的二钠盐或二钾盐的水合物
- 专利标题： Hydrates of the disodium salt or dipotassium salt of 4,4'-bis(2-sulfostyryl)biphenyl
- 专利标题（中）： 4,4'-双（2-磺基苯乙烯基）联苯的二钠盐或二钾盐的水合物
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申请号： US81597申请日： 1993-06-23
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公开(公告)号： US5437818A公开(公告)日： 1995-08-01
- 发明人: Thomas Ehlis , Andre Geoffroy , Erwin Marti , Josef Zelger , Karlheinz Franke , Andreas Burkhard
- 申请人： Thomas Ehlis , Andre Geoffroy , Erwin Marti , Josef Zelger , Karlheinz Franke , Andreas Burkhard
- 申请人地址： NY Ardsley
- 专利权人： Ciba-Geigy Corporation
- 当前专利权人： Ciba-Geigy Corporation
- 当前专利权人地址： NY Ardsley
- 优先权： CHX2042/92 19920630
- 主分类号： C07C303/32
- IPC分类号： C07C303/32 ; C07C303/42 ; C07C309/32 ; C08K5/41 ; C08K5/42 ; C11D3/42 ; C11D7/34 ; C11D7/54 ; D06L3/12 ; C09K11/06 ; C07C309/01
摘要：
The present invention relates to novel hydrates of the disodium salt or dipotassium salt of 4,4'-bis(2-sulfostyryl)biphenyl characterized by their water of hydration content, to the crystal forms associated therewith, characterized by their X-ray diffraction pattern, to processes for the preparation, and to their use for the preparation of concentrated formulations of fluorescent whitening agents.
公开/授权文献
- USD412168S Handset 公开/授权日：1999-07-20
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