Patent ID: 6416853
Filing Date: 2002-07-09
Classification: A63H,B32B,B44F,Y10T

Abstract:
A color-change laminate which comprises a cloth and a porous layer formed thereon, said porous layer comprising (i) a binder resin comprising at least an urethane resin selected from the group consisting of polyester urethane resins, polycarbonate urethane resins, and polyether urethane resins, (ii) a cross-linking agent, and (iii) a finely particular silicic acid produced by a wet process,wherein the amount of the binder resin is 0.5 to 2 parts by weight on solid basis per 1 part by weight of the finely particular silicic acid, and wherein said porous layer becomes transparent or translucent upon liquid absorption to give a variety of visual changes.