发明名称 |
Copper phthalocyanine pigment process. |
摘要 |
<p>Premilled semichloro copper phthalocyanine or partially sulfonated semichloro copper phthalocyanine is slurried and stirred with sulforic acid (50-60% and preferably 55-59% in the case of semichloro copper phthalocyanine and 50-61% and preferably 58-61% in the PHF case of partially sulfonated semichloro copper phthalocyanine) at 50°-85°C, preferably 65°-75°C for ½ to 4 hours. The slurry is diluted with to less than 35% sulfuric acid concentration and stirred at 60°-95°C for ½ to 4 hours. The resulting highly transparent pigment is filtered and dried.</p> |
申请公布号 |
EP0081840(A2) |
申请公布日期 |
1983.06.22 |
申请号 |
EP19820111576 |
申请日期 |
1982.12.14 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
FITZGERALD, PATRICK HENRY |
分类号 |
C09B67/20;C09B67/16;(IPC1-7):09B67/16 |
主分类号 |
C09B67/20 |
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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