发明授权
US4699735A Process for the preparation of 1,4-diaminoanthraquinone-2-sulfonic acid
失效
1,4-二氨基蒽醌-2-磺酸的制备方法
- 专利标题： Process for the preparation of 1,4-diaminoanthraquinone-2-sulfonic acid
- 专利标题（中）： 1,4-二氨基蒽醌-2-磺酸的制备方法
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申请号： US818449申请日： 1986-01-13
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公开(公告)号： US4699735A公开(公告)日： 1987-10-13
- 发明人: Maurice Grelat , Rudolf Schaulin
- 申请人： Maurice Grelat , Rudolf Schaulin
- 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： CHX315/85 19850124
- 主分类号： C07B61/00
- IPC分类号： C07B61/00 ; B01J31/00 ; C07C67/00 ; C07C301/00 ; C07C303/06 ; C07C303/32 ; C07C309/53 ; C09B1/24 ; C07C143/665
摘要：
The invention relates to a process for the preparation of 1,4-diaminoanthraquinone-2-sulfonic acid by sulfonating 1,4-diaminoanthraquinone or leuco-1,4-diaminoanthraquinone, which comprises carrying out the sulfonation at elevated temperature with oleum as sulfonating agent, with or without the addition of a Lewis base. The 1,4-diaminoanthraquinone-2-sulfonic acid is used in particular for synthesizing anthraquinoid disperse dyes for dyeing hydrophobic fibre materials.
公开/授权文献
- US5856747A Input signal determining method and apparatus 公开/授权日：1999-01-05
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