| 摘要 |
PURPOSE: A composition, a foam obtained by using the composition, a laminate containing the foam, its preparation method, and shoes and shoes part prepared from the foam or the laminate are provided, to obtain a foam or a laminate having Asker C hardness of 20-80, low specific viscosity, low compression set, and excellent tear strength, impact resilience and formability. CONSTITUTION: The composition comprises an ethylene-α-olefin copolymer which comprises 5-95 wt% of an ethylene-α-olefin copolymer having a density of 0.880-0.900 g/cm¬3 and a melt flow index of 0.1-50 g/10 min (ASTM D 1238, 190 deg.C, load of 2.16 kg) and 5-95 wt% of an ethylene-α-olefin copolymer having a density of 0.900-0.930 g/cm¬3, a melt flow index of 0.1-50 g/10 min (ASTM D 1238, 190 deg.C, load of 2.16 kg) and a main melting point peak at a position of 110 deg.C or less; and a foaming agent. Preferably both the ethylene-α-olefin copolymers are an ethylene-1-butene copolymer. The laminate comprises a foam formed by heating the composition; and a layer formed by using at least one material selected from the group consisting of polyolefin, polyurethane, rubber, leather and artificial leather. |
