URETHANE FOAM SHEET, CUSHION MATERIAL, AND METHOD FOR PRODUCING URETHANE FOAM SHEET

摘要

The purpose of the present invention is to provide a urethane foam sheet with a substrate. The urethane foam sheet is thin, has excellent flexibility and a fine uniform structure, is easy to handle, has high strength, and does not contract. This urethane foam sheet is characterized by comprising a foam obtained by applying a mixture of a urethane resin, an organic solvent, water and a fluorine-based surfactant to one side of a substrate, which is a film of any one of a polyethylene terephthalate film, a polypropylene film or a methylpentene polymer film, and then applying heat. The urethane foam sheet is further characterized in that the organic solvent is a mixed solution of toluene and methyl ethyl ketone, and the foam is constituted by microcells having a continuous ventilation structure.