POLYMER COMPOSITION CAPABLE OF FORMING WATER REPELLENT AND WATER DROP REMOXABLE SURFACE

摘要

PROBLEM TO BE SOLVED: To obtain a coating material capable of simultaneously imparting water repellence to the surface of a material and readily removing an attached water drop from the surface of the material by slidingly dropping the water drop. SOLUTION: This coating material comprises (A) a hydroxy-containing siloxane polymer obtained by copolymerizing (a) 1-30 wt.% siloxane macromonomer of the formula [R1 and R4 are each same or different H or methyl; R2 and R3 are each the same or different 1-6C divalent hydrocarbon; (n) is 6-300], (b) a hydroxy-containing vinyl monomer and optionally (c) other unsaturated monomers copolymerizable therewith, and having 50-290 mg-KOH/g hydroxy value, and (B) a cross-linking agent.