COATING AGENT FOR CORROSION-STABLE PAINTS
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United States of America Patent
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Issued Date -
Apr 26, 2012
app pub date -
Jan 14, 2010
filing date -
Feb 5, 2009
priority date (Note) -
Abandoned
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Abstract
Coating compositions comprising (a.1) at least one binder with functional groups (Gr); (a.2) at least one pigment; and (a.3) at least one corrosion-inhibiting component which comprises
- a parent structure (GK),at least one functional group (Gr′) which is attached covalently to (GK) and which, when a multicoat paint system containing the disclosed coating composition is thermally cured, reacts with at least one of functional groups (Gr) of the binder (a.1) or functional groups (Gr″) of at least one constituent of an adjacent coating (B), andat least one uni- and/or multidentate, potentially anionic ligand (L) which is different from the functional group (Gr′), is attached covalently to (GK), and, when the multicoat paint system is thermally cured, does not lose its capacity as a chelating agent. Also disclosed is a process for producing a multicoat paint system using the disclosed coating composition.
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