| abstract |
PROBLEM TO BE SOLVED: To provide a leather-like sheet which gives a leather-like sheet excellent in light fastness and flexibility such as light yellowing resistance and light dyeing fastness, and a leather-like sheet produced using the emulsion. I will provide a. SOLUTION: In a polyurethane emulsion obtained by emulsifying a polyurethane obtained by reacting a polymer polyol, an organic diisocyanate, and a chain extender in an aqueous medium, the polymer polyol contains a hindered amine compound unit in an amount of 0.1% to the polymer polyol. The problem is solved by a polyurethane emulsion characterized by having 2 to 10% by weight, and a leather-like sheet obtained by impregnating the emulsion with a fibrous base material and coagulating it. |