Patent ID: 8845911
Filing Date: 2014-09-30
Classification: B44C,B81B,B81C,Y10T

Abstract:
1. A method for the production of a microstructured molded object, comprising: preparing a plastically deformable first film, which has a plurality of pores; preparing a deformable second film; preparing a deformable first sacrificial film; placing the first film, the second film and the first sacrificial film in a stack of films, where the first film and the second film together lie opposite the first sacrificial film; subjecting the first sacrificial film to a pressure to press the stack of films into a mold, whereby deformed regions in the form of cavities are produced in the first sacrificial film, in the first film and in the second film, and undeformed regions remain, and whereby the first film and the second film are joined to each other and form a composite film; removing the first sacrificial film from the composite film; and etching at least portions of the deformed regions of the second film so as to chemically dissolve sections of the deformed regions of the second film, whereby sections in the deformed regions of the first film are opened up; and wherein the second film is thinned out during the pressing into the mold in the deformed regions so that the chemical dissolution is confined to the sections in the deformed regions of the second film.