| 摘要 |
<p>There are provided organic solvent- or water-based primer compositions for powder coating which are remarkably improved in bonding properties; and water-based primer compositions for powder coating which are remarkably improved in water resistance. More particularly, there are provided a powder coating primer composition comprising a diene polymer, an inorganic filler having an isoelectric point of 7 or larger on the surface thereof, and an organic medium; a powder coating primer composition comprising an acid-modified diene polymer, an inorganic filler having an isoelectric point of 7 or larger on the surface thereof and being hardly reactive with water, an organic amine compound or ammonia, and an aqueous medium; an article of metal powder-coated with a polymer by the use of the primer composition; and a process for production thereof. Further, there are also provided a powder coating primer composition comprising an acid-modified diene polymer, an aliphatic amine compound or ammonia, an aromatic polyamine compound, and an aqueous medium; and a process for producing a polymer-coated article of metal by powder coating using this primer composition. Additionally, there are provided a powder coating primer composition comprising an acid-modified diene polymer, an aliphatic amine compound or ammonia, an amine precursor and an aqueous medium; and a process for producing a polymer-coated article of metal by powder coating using this primer composition. <IMAGE></p> |
