Aqueous crosslinkable coating compositions based on vinyl fluoropolymer

摘要

Aqueous crosslinkable coating composition suitable for anti-graffiti and heavy duty applications comprising: (A) an aqueous polymer emulsion comprising at least one vinyl fluoropolymer which comprises as a polymerized constituent monomer thereof (i) a fluoromonomer(s) having the formula (1) wherein R¹ is CH₃ or H, R² is a per-fluorinated C_1-5 alkyl group and n is 1, 2, 3 or 4, (ii) a hydroxyl functional monomer(s) and (iii) a carboxylic acid-functional monomer(s) where the vinyl fluoropolymer has a glass transition temperature Tg within the range of from -50 to 90° C. and (B) at least one hydroxyl-reactive crosslinker material