| 摘要 |
PROBLEM TO BE SOLVED: To provide a film body connecting structure which is enhanced in cutoff performance, and improved in adhesiveness between a waterproof sheet film body having a fluororesin on its surface and a cutoff sheet, to thereby improve the water- tightness and air-tightness thereof. SOLUTION: The film body connecting structure for use in an air dome is formed by rigidly pinching a joint portion of the film bodies A with plates serially arranged in a film body connecting direction, and an upper member 6, and covering the same with a gasket G. Then, the cutoff sheet B is fixed to a boundary portion between the gasket G and the film body A so as to cover the same. At this time, a primer (a) is applied to an adherend surface of the waterproof sheet film body A having the fluororesin. The primer is a solution at solid content concentration of 3 to 25%, and contains a bromide of isobutylene-p-methyl styrene copolymer or a blended material of the bromide and a natural or synthetic rubber, as a main ingredient, and an aliphatic hydrocarbon-based solvent as a solvent main ingredient. Thereafter, the cutoff sheet B is fixed to the film body A via an adhesive (b) in the form of a natural vulcanized tape, containing butyl rubber having autohesion properties at room temperature.
|
