发明名称 |
DETERGENT COMPOSITIONS CONTAINING SILVER ANTI-TARNISHING AGENTS |
摘要 |
A bleaching detergent composition which prevents or inhibits tarnishing of silver comprises: (a) a bleaching agent selected from a peroxygen or peroxygen-yielding compound, a hypohalite or hypohalite-yielding compound, or a salt thereof, or mixtures thereof; (b) an anti-tarnishing agent selected from: (i) a purine class compound; (ii) cyanuric acid or isocyanuric acid or a salt thereof; (iii) a 1,3-N azole compound; (iv) a mixture of any of the above compounds (i), (ii) or (iii); (c) optionally a builder; (d) optionally, a surfactant; wherein the composition exhibits a pH value in the range from 7 to 13, and wherein the anti-tarnishing agent has a pKa value below the pH value of an aqueous solution of the composition. |
申请公布号 |
WO9510588(A1) |
申请公布日期 |
1995.04.20 |
申请号 |
WO1994EP03322 |
申请日期 |
1994.10.07 |
申请人 |
UNILEVER N.V.;UNILEVER PLC |
发明人 |
ANGEVAARE, PETRUS, ADRIANUS, J., M.;GARY, RICHARD, GERALD |
分类号 |
C11D3/00;C11D3/28;C11D3/39;C11D3/395;(IPC1-7):C11D3/28 |
主分类号 |
C11D3/00 |
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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