| 摘要 |
The present invention concerns a procedure for producing a nonshrinkable gluing or coating film. The gluing or coating film (16) is placed on the surface to be glued or coated, or between different surfaces, and fixed thereto by fusing it with the aid of heat. The gluing or coating film (16) is produced by extruding, with the aid of a planar nozzle (11), hot-bonding plastic. The hot-bonding plastic contains 0.1 to 10% by weight of chemical and/or physical cell-generating agents, which gasify at the extrusion step and perforate the fluing or coating film (16) coming from the planar nozzle (11). For hot-bonding plastic is used a thermoplastic material, such as polyethylene, a copolymer of ethylene and vinyl acetate, or polypropylene. |
