发明授权
- 专利标题: SILBERKORROSIONSSCHUTZMITTEL II
- 专利标题(英): Silver-corrosion protection agent (ii)
- 专利标题(中): SILVER防腐手段II
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申请号: EP94917579.8申请日: 1994-05-02
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公开(公告)号: EP0697036B1公开(公告)日: 1999-07-28
- 发明人: HÄRER, Jürgen , BLUM, Helmut , BURG, Birgit , HOLDERBAUM, Thomas , BUCHMEIER, Willi , JESCHKE, Peter , SPECKMANN, Horst-Dieter , WIECHMANN, Frank , NITSCH, Christian
- 申请人: Henkel Kommanditgesellschaft auf Aktien
- 申请人地址: 40191 Düsseldorf DE
- 专利权人: Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人: Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人地址: 40191 Düsseldorf DE
- 优先权: DE4315397 19930508; DE4338724 19931112
- 国际公布: WO9426860 19941124
- 主分类号: C11D3/00
- IPC分类号: C11D3/00 ; C11D3/20 ; C11D3/28 ; C11D3/30 ; C11D3/33 ; C11D3/34 ; C11D17/06
摘要:
The invention concerns the use of organic redox compounds, in particular ascorbic acid, indole, methionine, N-(C1-C4 alkyl) glycines, 2-phenylglycine or coupler and/or development compounds selected from the group comprising diaminopyridines, aminohydroxypyridines, dihydroxypyridines, heterocyclic hydrazones, aminohydroxypyrimidines, dihydroxypyrimidines, tetraaminopyrimidines, triaminohydroxypyrimidines, diaminodihydroxypyrimidines, dihydroxynaphthalines, naphthols, pyrazolones, hydroxyquinolines, aminoquinolines, primary aromatic amines which have, in addition, a free hydroxy or amino group, or a hydroxy or amino group substituted with C1-C4 alkyl or C2-C4 hydroxyalkyl groups, at the ortho, meta or para position, and di- or trihydroxybenzenes as silver-corrosion protection agents in dishwasher washing agents, in particular low-alkali dishwaster washing agents.
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