Patent · US Active

Anti-corrosion agent forming a coating film with good adhesion and method for nongalvanic application thereof

US8399061B2 · kind B2 · utility

1Cited by

21References

8Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Michael Dornbusch · Munster, DE
Elke Austrup · Nordkirchen, DE
Horst Hintz-Bruning · Munster, DE

Key dates

Filing date	Sep 19, 2007
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Sep 1, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F220/60
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with a gradient in the concentration of covalently bonded hydrophilic groups along the main polymer chain, the polymer P having 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.