Self-precipitating aqueous particulate composition comprising pigment binder particles

• Main Authors: MARKOU KONSTANTINOS, DRONIOU PATRICK
• Format: Patent
• Language: English
• Published: 04.11.2014
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATION OF CARBON BLACK; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to an acidic, aqueous, particulate composition having a high stability with respect to agglomeration for autophoretic deposition of organic-inorganic hybrid layers on metal surfaces, comprising, in addition to iron(III) ions, fluoride ions and at least one dispersed organic binder (B), pigment-binder particles comprising a pigment portion and a binder portion (B), such that the binder (B) comprises a polymer of at least one monomer having acid groups and at least one polymerizable double bond. Likewise, the invention relates to the use of an aqueous dispersion comprising pigment-binder particles comprising a pigment portion and a binder portion (B) for the production of a self-depositing composition as well as a method for autophoretic deposition on metal surfaces.