Abstract: A closure for a closing strip includes a tooth strap (32) and a closure (1) with a guide for the tooth strap (32). In order to make it easy to separate the lock between the tooth strap and closure, the closure (1) has a meshing part (6,7) with a tooth and an unlocking part (16, 17), by means of which the tooth can be brought out of the meshed stage (FIG. 6).

Abstract: As a result of deposition from different directions through a mask, a layer can be applied last in a surface-wide form underneath the mask. In this arrangement, the mask is separated by a cavity from the base in the coating region and is firmly joined to it outside the coating region. This process is advantageous, in particular, for the SGFET (suspended-gate field-effect transistor) used as gas sensor. In this process, the mask also forms the gate and the sensitive layer is not subjected to any further process after the deposition. The mask may then remain open or be closed by depositing such a large amount that the openings in the mask are grown over laterally, or by depositing an additional layer at an oblique angle. This process is also suitable for producing micromechanical membranes.

Abstract: The use of polyol derivatives with at least two alcoholic hydroxy groups and at least one fatty acid residue per molecule obtainable by reacting a starting polyol with a fatty acid or a fatty acid derivative, which can be obtained by using as a starting polyol diethanolamine, triethanolamine, diisopropanolamine, triisopropanolamine, dibutanolamine, and reaction products of ethylene oxide and/or propylene oxide with ethanolamine, isopropanolamine, butanolamine, or primary or secondary, aliphatic or aromatic amines, as internal lubricants and/or polyol with internal lubricant properties in the production of molded polyurethane parts is described. In this manner a much more uniform distribution of the internal mold lubricant and thus an increase in the ductility of the reaction mixture can be achieved, and even crosslinked polyurethane profiles can be produced by extrusion.