Process for the application of powder coatings

Details Process for the application of powder coatings Process for the application of powder coatings

B - Operations, Transporting

05

D

B05D 3/02 (2006.01) B05D 1/04 (2006.01) B05D 7/14 (2006.01)

Patent

CA 2508949

A process for application of powder coatings to conductive and non-conductive surfaces comprisinga) covering the surface with material which absorb high- energy radiation within a wavelength in the range of 250 to 2,500 nm and having heating rates of more than 50~C per second and b) applying a powder coating composition to the covered surface and melting and curing the applied powder coating composition with NIR radiation.

L'invention concerne un procédé d'application de revêtements en poudre sur des surfaces conductrices et non conductrices. Ce procédé consiste: a) à recouvrir la surface par un matériau qui absorbe un rayonnement de haute énergie dans une longueur d'ondes située dans la plage comprise entre 250 et 2500 nm et dont les vitesses d'échauffement sont supérieures à 50 ·C/s; et b) à appliquer une composition de revêtement en poudre sur la surface recouverte et à faire fondre et à faire durcir ladite composition de revêtement en poudre appliquée au moyen d'un rayonnement proche infrarouge.

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