Patent ID: 9102783
Filing Date: 2015-08-11
Classification: C08G,C09D,E04F

Abstract:
1. A strippable coating composition for floors which contains 50% by weight or more of an aqueous polyurethane resin relative to a total solid content and which forms a coating film, the aqueous polyurethane resin being produced by reaction of a hydroxyl-containing compound component and an isocyanate component, wherein a hydroxyl-containing compound component constituting the aqueous polyurethane resin comprises: (A) a polyester hydroxyl-containing compound component prepared from 1,6-hexanediol and at least one of an aliphatic dibasic acid and an aromatic dibasic acid, (B) a low-molecular alicyclic diol component, and (C) an unsaturated fatty acid ester hydroxyl-containing compound component, and the coating film has a tear strength of 0.3N or more, a break strength of 10 MPa or more, and an elongation at break of 50% or more, wherein the hydroxyl-containing compound component contains the component (A) at a molar ratio of 0.3 to 0.8, the component (B) at a molar ratio of 0.05 to 0.45, and the component (C) at a molar ratio of 0.05 to 0.35 (provided that a total molar ratio of the three components is 1).