| abstract |
To provide a spacing sheet interposed between glass substrates, comprising a foamed sheet which is stiff enough in spite of being thin and lightweight and is excellent in surface protecting performance. The spacing sheet for glass substrates comprises a polyolefin resin extrusion-foamed sheet of a thickness of 0.3 to 1.5 mm and an apparent density of 18 to 180 g/L, wherein the foamed sheet contains 5 to 30 pts.wt., per 100 pts.wt. polyolefin resin, polymeric antistatic agent, the base resin of the foamed sheet has melt tension of 3 to 40 cN and a melt mass flow rate of 0.2 to 10 g/10 min, and the foamed sheet has a cell count of 4 to 10/mm in the thickness direction, a cell flatness of 0.1 to 0.6, a centerline average roughness on the surface of 25 [mu]m or lower, and a surface resistivity (after ultrasonic cleaning in ethanol) of 1*10<8>to 1*10<14>([Omega]). |