发明授权
US4531979A Sealing of anodically oxidized aluminum or aluminum alloy surfaces and
compounds useful therefor
失效
阳极氧化的铝或铝合金表面和化合物的密封是有用的
- 专利标题： Sealing of anodically oxidized aluminum or aluminum alloy surfaces and compounds useful therefor
- 专利标题（中）： 阳极氧化的铝或铝合金表面和化合物的密封是有用的
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申请号： US519419申请日： 1983-08-01
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公开(公告)号： US4531979A公开(公告)日： 1985-07-30
- 发明人: Hans Bohler , Ernst Weisskopf
- 申请人： Hans Bohler , Ernst Weisskopf
- 申请人地址： CHX Basel
- 专利权人： Sandoz Ltd.
- 当前专利权人： Sandoz Ltd.
- 当前专利权人地址： CHX Basel
- 优先权： DEX3229513 19820807
- 主分类号： C07C67/00
- IPC分类号： C07C67/00 ; C07C301/00 ; C07C303/38 ; C07C309/51 ; C07C309/61 ; C07C311/29 ; C07D251/22 ; C07D251/44 ; C07D251/46 ; C07D251/50 ; C07D251/52 ; C07D251/70 ; C07D253/06 ; C07F9/38 ; C07F9/40 ; C09K3/10 ; C23C8/18 ; C25D11/18 ; C25D11/24 ; C25D5/50
摘要：
Anodically oxidized aluminium or aluminium alloy surfaces are sealed in the presence of an anti-smut agent which is a colorless, light-fast, organic compound having a molecular weight of at least 350 and containing(i) at least one sulphonic acid group; and(ii) a carboxy group and a hydroxy group both aromatically bound and located ortho- to each other on the same aromatic ring, preferably a benzene ring.
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