发明名称 |
(2-alkoxy-4-sulfonyl-5-alkylphenyl)azo-1-hydroxynaphthalene sulfonic acids |
摘要 |
Physiologically acceptable cation salts of (2-alkoxy-4-sulfonyl-5-alkylphenyl)azo-1-hydroxynaphthalene sulfonic acids useful as blue-red colorants for textile fabrics, cellulosic fibers and edible compositions are prepared by diazotizing 2-alkoxy-4-sulfonyl-5-alkylanilines and coupling the resulting diazo compounds to a 1-hydroxynaphthalene mono- or disulfonic acid.
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申请公布号 |
US4675389(A) |
申请公布日期 |
1987.06.23 |
申请号 |
US19840617451 |
申请日期 |
1984.06.05 |
申请人 |
THE HILTON-DAVIS CHEMICAL CO. |
发明人 |
COOK, WAYNE L.;HUTH, ROBERT P. |
分类号 |
A23L1/275;C09B29/16;D06P1/39;D21H21/28;(IPC1-7):A23L1/275;C09B29/01 |
主分类号 |
A23L1/275 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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