| abstract |
The solid content ratio of (I) water-based urethane resin, (II) matting agent, (III) polyorganosiloxane represented by formula (1) and acrylate unit or methacrylate unit is in a mass ratio of 80. A coating agent for leather containing a silicone acrylic graft copolymer resin emulsion in a ratio of 20 to 99: 1. (R1 is a monovalent hydrocarbon group; R2 is a mercapto group, acryloxy group or methacryloxy group-substituted alkyl group or vinyl group; X is a monovalent hydrocarbon group, alkoxy group or hydroxyl group; Y is X or-[O-Si (X) 2] dX; at least two of X and Y are hydroxyl groups; Z is an alkoxy group or a hydroxyl group; a is 0 to 1,000; b is 100 to 10,000; c is 1 to 10; d is 1 to 1,000) [Effect] The leather coating agent has excellent wear resistance and antifouling properties, and the leather formed with the coating agent can maintain a high-grade appearance and high wear resistance. . [Selection figure] None |