Abstract:
The disclosure provides a functionalized polymer for use in coating compositions and a method for making the functionalized polymer. In some embodiments, the functionalized polymer is a water-dispersible polymer, more preferably a water-dispersible polyester polymer, having one or more side groups including one or more salt groups. Packaging containers (e.g., food or beverage cans) comprising the functionalized polymer and methods of making such containers are also provided.
Abstract:
La descripción proporciona un polímero funcionalizado para usar en composiciones de revestimiento y un método para elaborar el polímero funciorializado. En algunas modalidades, el polímero funcionalizado es un polímero dispersable en agua, con mayor preferencia, un polímero de poliéster dispersable en agua, que tiene uno o más grupos laterales que incluyen uno o más grupos de sales. Se proporciona, además, envases para envasado (por ejemplo, latas para alimentos o bebidas) que comprenden el polímero funcionalizado y métodos para elaborar los envases.
Abstract:
Methods and compositions for coating metal substrates with powder coatings are provided. The methods and systems include application of TGIC-reactive carboxyl-functional polyester resins with high acid number and low melt viscosity, used in powder coatings formulated at high pigment loadings, and optionally including a pigment dispersant in the premix prior to extrusion.