CATIONIC MICROGEL FOR ELECTRO-DEPOSITION PAINT, PREPARING METHOD THEREOF, AND COMPOSITION FOR ELECTRO-DEPOSITION PAINT CONTAINING THE SAME

摘要

The present invention is an electrodeposition coating cationic microgels, their preparation and relates to an electrodeposition coating composition containing the same, more particularly to corrosion protection of the coating film smoothness inferior and corner regions that may occur in the use of the low-density electrodeposition paint for thirteen as well as improve it, to a low-density film for electrodeposition paints which can improve the mechanical properties cationic microgels, their preparation method and the electro-deposition coating composition containing the same. Microgel according to the invention are conventional amine by introducing the urea bond with a diisocyanate as a crosslinking agent - has a superior advantage that the mechanical properties compared to the epoxy crosslinking system. In addition, improving the microgels is the corner region during the microgel apply corrosion protection since less, as well as the size of the crosslinked particles of 80 nanometers to participate in the curing reaction of the compatibility is excellent in the coating film of the cationic electrodeposition resin according to the invention to improve the smoothness of the coating film inferior sikimyeo it is possible to suppress crater (Crater).