Fluorine-containing matte electrodeposition coating material composition

TLDR: In this paper, the authors proposed a title composition having excellent stability of coating material, electrodeposition characteristics, appearance of coating film, weather resistance and chemical resistance, comprising a fluorine-containing electro-deposition coating material composed of a specific acrylic graft copolymer, etc., and an acrylic microgel having a specific structure.

Abstract: PURPOSE:To obtain the title composition having excellent stability of coating material, electrodeposition characteristics, appearance of coating film, weather resistance and chemical resistance, comprising a fluorine-containing electrodeposition coating material composed of a specific acrylic graft copolymer, etc., and an acrylic microgel having a specific structure in a specific ratio. CONSTITUTION:The objective composition consisting of (A) 50-80wt.% fluorine- containing electrodeposition coating material comprising (i) 3-45wt.% acrylic graft copolymer composed of a polymer prepared by copolymerizing a (meth) acrylic acid fluoroalkyl ester, having 20-65mgKOH/g-resin acid value, as a branch polymer, (ii) 30-85wt.% fluorine-containing polymer and (iii) 10-40wt.% completely alkyl ether type melamine resin and (B) 20-50wt.% acrylic microgel having core shell structure.