| abstract |
PROBLEM TO BE SOLVED: To provide a polyurethane emulsion having excellent heat-sensitive gelling property and storage stability and a leather-like sheet excellent in texture. SOLUTION: 100 parts by weight of polyurethane, HLB is 1 5 to 15 parts by weight of an ethylene oxide adduct (I) of an aliphatic alcohol in the range of 3.0 to 17.0, HL B is in the range of 8.0 to 15.0 and has a lower HLB than the nonionic surfactant (I), and comprises 1 to 20 parts by weight of an ethylene oxide adduct (II) of an aliphatic alcohol and an aqueous medium. A leather-like sheet using a heat-sensitive gelling polyurethane-based emulsion. |