COAT-FORMING CORROSION PREVENTATIVE WITH REDUCED CRACK FORMATION AND PROCESS FOR ITS ELECTROLESS APPLICATION
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
Sep 19, 2007
filing date -
Nov 13, 2006
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Abandoned
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Abstract
The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with covalently bonded ligands A, which form chelates with the metal ions released during the corrosion of the substrate and/or with the substrate surface, and having crosslinking functional groups B, which with themselves, with further complementary functional groups B′ of the polymer P and/or with further functional groups B and/or B′ are able to form covalent bonds to crosslinkers V, and at least one surface-active substance OS at the surface of the substrate to be coated.
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