| 摘要 |
PURPOSE:To manufacture a water-proofing sheet in high working efficiency, by using a specific vulcanized rubber sheet and a thermoplastic elastomer sheet, and bonding the sheets firmly, uniformly and easily with a hot jet gun on-site. CONSTITUTION:A vulcanized rubber sheet containing an ethylene-propylene terpolymer and a butyl rubber at a blend ratio of 60/40-100/0 is bonded with a thermoplastic elastomer sheet, or a pair of the vulcanized rubber sheets are bonded together interposing said elastomer sheet therebetween. The bonding is carried out by sandwiching the elastomer sheet with the vulcanized rubber sheets, and hot-pressing the laminate using a hot jet gun. The temperature of the hot jet is 400-600 deg.C, the speed of the gun is 1-4m/min, and the pressure applied by the press roll is 5-10kg/cm. |
