Patent ID: 8741204
Filing Date: 2014-06-03
Classification: B29C,B29L,B82Y,G03F

Abstract:
1. A method for hot embossing a magnetic nanoparticle-containing polymer layer, the method comprising the following steps: applying the magnetic nanoparticle-containing polymer layer onto a substrate of a hot embossing device; heating the polymer layer with a magnetic field generating means generating a magnetic field causing excitation of the magnetic nanoparticles; embossing the heated polymer layer on the substrate by applying pressure to the heated polymer layer with an embossing die; cooling the embossed polymer layer; and separating the embossing die from the cooled polymer layer, wherein components of the hot embossing device consist of materials which do not respond to the magnetic field so that only the polymer layer or only parts of the polymer layer to be embossed are heated during said heating.