Stain resistant coating compositions, methods of coating and coated articles

A stain resistant coating composition which comprises (A) an aliphatic sulfonic acid compound or an amine salt of aliphatic sulfonic acid compound, (B) a compound having in the molecule at least one functional group selected from the group consisting of carboxyl group, carboxylic acid anhydride group and carboxyl group blocked with an alkylvinyl ether compound, (C) an organosilicate represented by formula (1):

• (R1)m—Si—(OR2)4-m (1)
• , wherein R1 and R2 are each hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group having 1 to 10 carbon atoms and m is 0 or 1, and/or a condensate thereof, and (D) a resin having in the molecule one or more epoxy groups and/or alkoxy silyl groups, as indispensable components, and optionally (E) a dispersing component of at least one inorganic oxide sol selected from the group consisting of aluminum oxide sol, silica sol, zirconium oxide sol and antimony oxide sol and/or (F) a modified resin having a modified part derived from an organosilicate represented by formula (2):
• (R3)n—Si—(OR4)4-n (2)
• , wherein R3 and R4 are each hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group having 1 to 10 carbon atoms and n is 0 or 1, and/or a condensate thereof, and an acrylic resin structure part having in the molecule one or more hydroxyl group, or both of one or more hydroxyl group and one or more epoxy groups.