发明授权
US06500276B1 Polymetalate and heteropolymetalate conversion coatings for metal substrates
失效
金属基材的金属酸盐和杂多金属盐转化涂层
- 专利标题： Polymetalate and heteropolymetalate conversion coatings for metal substrates
- 专利标题（中）： 金属基材的金属酸盐和杂多金属盐转化涂层
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申请号： US09464284申请日： 1999-12-15
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公开(公告)号： US06500276B1公开(公告)日： 2002-12-31
- 发明人: Zoran Minevski , Cahit Eylem , Jason Maxey , Carl Nelson
- 申请人： Zoran Minevski , Cahit Eylem , Jason Maxey , Carl Nelson
- 主分类号： C23C2248
- IPC分类号： C23C2248
摘要：
The present invention provides a conversion coating solution containing polymetalates and/or heteropolymetalates to oxidize the surface of various metal substrates. The polymetalates have the general formula MxOyn−, where M is selected from the group comprising Mo, V and W. The heteropolymetalates have the general formula BMxOyn−, where B is a heteroatom selected from P, Si, Ce, Mn or Co, and M is again selected from Mo, V, W or combinations thereof. The concentration of polymetalates and/or heteropolymetalates anions is preferably between about 1% and about 5% by weight. Examples of typical anions used include, but are not limited to, (PMo12O40)3−, (PMo10V2O40)5−, (MnPW11O39)5−, (PW12O40)3−, (SiMo12O40)4−, (SiW12O40)4−, (Mo7O24)6−, (CeMo7O24)8−and mixtures thereof.
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