发明授权
US4944806A Rigmentary salt of a triphenylmethane compound and process for making
same
失效
三苯基甲烷化合物的重结晶盐及其制备方法
- 专利标题： Rigmentary salt of a triphenylmethane compound and process for making same
- 专利标题（中）： 三苯基甲烷化合物的重结晶盐及其制备方法
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申请号： US138323申请日： 1987-12-28
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公开(公告)号： US4944806A公开(公告)日： 1990-07-31
- 发明人: Anand S. G. Sharangpani , Floyd G. Spence , Brian D. Teunis
- 申请人： Anand S. G. Sharangpani , Floyd G. Spence , Brian D. Teunis
- 申请人地址： NJ Parsippany
- 专利权人： BASF Corporation
- 当前专利权人： BASF Corporation
- 当前专利权人地址： NJ Parsippany
- 主分类号： C09B11/20
- IPC分类号： C09B11/20 ; C09B69/06
摘要：
Pigmentary Opal Sulfate is made by combining triphenylpararosaniline (Opal Blue) with a dilute acid. The pigmentary Opal Sulfate is a substitute for Alkali Blue. The most preferred process for producing the pigmentary Opal Sulfate involves drowning a solution of Opal Blue in a highly agitated solution of dilute sulfuric acid.
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