| 摘要 |
PROBLEM TO BE SOLVED: To provide an elastic film appearing holes in drawing to secure moisture permeability, having a low specific gravity, excellent in stretchability and having a shielding property. SOLUTION: The elastic film comprises an SBS (styrene-butadiene-styrene copolymer) resin composition obtained by mixing SBS-A comprising 65-95 mass% styrene component with SBS-B comprising 5-40 mass% styrene component at a component ratio of (SBS-A)/(SBS-B)=75/25 to 95/5, and a filler (C) compounded at a ratio of 20-45 pts.mass based on 100 pts.mass of the SBS resin composition so that the specific gravity is 1.10-1.32. COPYRIGHT: (C)2008,JPO&INPIT |
