发明名称 |
Heavy metal adjuncts, their preparation and use. |
摘要 |
<p>A stable heavy metal adjunct, particularly manganese adjunct, for use as a peroxygen bleach catalyst is disclosed which comprises a matrix of a heavy meal salt provided with a surface powder coating of desiccant microsized powdered material having a mean particle size of less than 25 µm.</p><p>A process for preparing said adjunct and bleaching and detergent compositions containing said adjunct are also disclosed.</p><p>Preferred heavy metal is manganese and preferred surface powder coating is with microsized silicon dioxide (silica).</p> |
申请公布号 |
EP0141472(A2) |
申请公布日期 |
1985.05.15 |
申请号 |
EP19840201582 |
申请日期 |
1984.11.02 |
申请人 |
UNILEVER NV;UNILEVER PLC |
发明人 |
FINCH, TIMOTHY DAVID;WILDE, RAYMOND JOHN |
分类号 |
C11D7/54;C11D3/39;(IPC1-7):C11D3/39 |
主分类号 |
C11D7/54 |
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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