Abstract: A single or multilayered film is presented having at least one layer that contains at least one thermoplastic olefin homo or copolymer, modified if need be. The layer contains additionally, at least one polyester. Such film is used as a sliding film or preliner in trenchless pipe renovation using the tube lining technique in which the film is layed on the inner wall of an underground sewer pipe laid that will be renovated. An insertion pipe with a curable carrier material can be pulled in sliding fashion over the sliding film laid on the pipe.

Abstract: A tubular liner for sewer rehabilitation an inner tubular film; a resin-carrier layer surrounding the inner tubular film; and a mechanically protective outer film system surrounding the resin-carrier layer. The outer film system has an outer film extending in the longitudinal direction of the tubular liner. Longitudinal edges of the outer film are connected to each other in an overlapping manner in the circumferential direction of the tubular liner with connecting points. Upon the elongation in the radial direction during the insertion of the tubular liner, the connection points are elongated and may break in a sewer to be rehabilitated. The outer film features at least one layer made of a material that is mechanically very stable and is essentially not able to elongate, and at least one layer that is essentially impermeable for UV radiation and visible light.

Abstract: A single or multilayered film is presented having at least one layer that contains at least one thermoplastic olefin homo or copolymer, modified if need be. The layer contains additionally, at least one polyester. Such film is used as a sliding film or preliner in trenchless pipe renovation using the tube lining technique in which the film is layed on the inner wall of an underground sewer pipe laid that will be renovated. An insertion pipe with a curable carrier material can be pulled in sliding fashion over the sliding film laid on the pipe.

Abstract: A polymeric multilayer film having at least one polyamide layer as well as at least one further layer of a different polymeric material, the multilayer film having high elasticity and good flexibility.

Abstract: The invention relates to one tubular liner (1) for sewer rehabilitation, with at least: one inner tubular film (2); with a resin-carrier layer (3) surrounding the inner tubular film (2), whereas the resin (3b) is curable by means of UV radiation; with a mechanically protective outer film system (7) surrounding the resin-carrier layer (3), with at least one outer film (7a; 7a, 7b) extending in the longitudinal direction of the tubular liner (1), whereas the longitudinal edges (8) of the outer film (7a) or the outer films (7b, 7c) are connected to each other in an overlapping manner in the circumferential direction of the tubular liner (1); whereas the at least one connecting point (9) resulting from this, upon the elongation in the radial direction during the insertion of the tubular liner (1); is elongated and may break in a sewer to be rehabilitated.

Abstract: A film suitable for permanent, firm bonding with resin after hardening of the resin is provided with at least one layer containing at least one polyolefin plastomer (POP) or one polyolefin elastomer (POE) capable of bringing about a permanent, direct adhesion of the resin to this layer during the course of resin hardening. The invention likewise refers to an arrangement with at least one such film and a resin on one side of the film. The invention also refers to a tube liner for non-disruptive sewage pipe renovation and various applications of the film according to the invention or the arrangement according to the invention in non-disruptive sewage pipe renovation.

Abstract: A one- or multilayered film is presented, in which case the film comprises at least one layer that contains at least one thermoplastic olefin homo or copolymer, modified if need be. According to the invention, said layer contains additionally, at least, one polyester. In addition, the use of such film as sliding film or preliner in pipe renovation using the so-called tube lining technique is presented, in which case the film is used for laying it on the inner wall of a pipe laid underground that will be renovated, preferably a sewer pipe, so an insertion pipe with a curable carrier material can be pulled in sliding fashion over the sliding film laid on the pipe. The film according to the invention can also be used as packaging material for food or for the so-called non-food sector.

Abstract: There is described a device for testing the hydraulic brake system of motor vehicles for the presence of small and extremely small leaks. To improve the performance while achieving the smallest possible overall size, the loading rod comprises a non-rotating spindle (6), which can be extended via a rotating nut (6.1), and which carries the measuring head (3). A bracing plate, which can move with low friction, is housed in resiliently displaceable manner in the measuring head (3).