THERMAL CURABLE POLYESTER POWDER COATING COMPOSITION
The invention provides a powder coating composition comprising (A) at least one hydroxyl functional polyester resin binder, and (B) at least one polyurethane resin as cross-linking agent containing blocked isocyanate groups, wherein the at least one hydroxyl functional polyester resin binder (A) and...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention provides a powder coating composition comprising (A) at least one hydroxyl functional polyester resin binder, and (B) at least one polyurethane resin as cross-linking agent containing blocked isocyanate groups, wherein the at least one hydroxyl functional polyester resin binder (A) and the at least one polyurethane resin (B) both having a melting temperature of 60 to 180° C., in particular, 60 to 160° C. The powder coating composition according to the invention provides the desired technological properties, in particular, thin films and high flexibility in combination with excellent mechanical properties of the coatings. |
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