| 摘要 |
Thin layered tapes for sealing textile seams against water entry wherein the first layer is a thermoplastic hot melt adhesive resin, the second layer consists of a microporous expanded polytetrafluoroethylene membrane whose pores are at least partly filled with a substantially transparent and colorless high melting or non-melting polyurethane adhesive. This adhesive binds the thermoplastic layer to the membrane, and optionally a third layer of very thin material to the second face of the membrane when the pores are essentially filled with adhesive. The thinness of the structures provides sealed seams with less bulk, good hand and drape and easier application. The compression and heating of the tape during application further reduces the reflectivity and increases the transparency of the tape on the sewn seam. |
