发明名称 |
Passivating layer on a metallic surface, prepared by precipitation of water-soluble, nitrogen-containing polymer at the metal surface upon addition of metal salt(s) at a pH of less than 7 |
摘要 |
<p>Passivating layer (I) on a metallic surface is prepared by contacting the surface with a composition comprising a water-soluble, nitrogen-containing polymer that is a base, whereby an aqueous solution of the polymer forms a precipitate at the metal surface upon addition of one or more metal salts at a pH of less than 7. Independent claims are included for: (a) metallic surfaces having the passivating layer (I); (b) a construction (II) comprising a metallic surface, the passivating layer (I) and further paint layers and; (c) a process for the formation of the construction (II) by formation of the passivating layer (I) on the metallic surface followed by painting.</p> |
申请公布号 |
DE10310972(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
DE2003110972 |
申请日期 |
2003.03.13 |
申请人 |
BASF AG |
发明人 |
DIETSCHE, FRANK;WITTELER, HELMUT;KLUEGLEIN, MATTHIAS;KLIPPEL, FRANK |
分类号 |
B05D7/00;B05D7/14;C09D5/08;C09D139/00;C23C22/53;C23C22/68;(IPC1-7):C23F15/00;B05D7/16;C09D179/04 |
主分类号 |
B05D7/00 |
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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