| 摘要 |
PURPOSE:To obtain foamed sheet having excellent adhesiveness even to plain material attached by oil film, etc., having a structure consisting of a flat, continuous resin surface having fine pores and connecting the pores to inner air bubbles having diameters larger than diameters of the surface pores and connecting each of the inner air bubbles to other air bubbles through tubes of thinner diameters. CONSTITUTION:Preferably, urethane resin is mixed with acrylic resin having a glass transition temperature of -10--50 deg.C in the ratio of urethane resin/ acrylic resin = 90/10-50/50, mixed with air, coated on a support or release paper and heat-treated to obtain a foamed sheet suitable for interior decoration, wallpaper and sealing, etc., having excellent adhesiveness and cushioning properties, comprising a structure having at least one flat, continuous resin surface (a) having fine pores (b) connected to inner air bubbles (c) having diameters larger than diameters of the fine pores (b) and the inner air bubbles (c) are connected to other air bubbles through tubes of thinner diameters. |
