Verfahren zur Herstellung einer permanenten Entformungsschicht durch Plasmapolymerisation auf der Oberflaeche eines Formteilwerkzeugs, ein nach dem Verfahren herstellbares Formteilwerkzeug und dessen Verwendung

WO 200205972 A UPAB: 20020613 NOVELTY - By temporal variation of polymerization conditions, a release layer with property gradient is produced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the corresponding mold with permanent layer of parting agent. USE - To make a permanent mold release layer with property gradient. The mold is used to produce plastic objects, e.g. from polyurethane or polyurethane foam (claimed applications). ADVANTAGE - A low-energy, actively-separating surface is formed, which is so stable that it may be considered permanent. A valuable feature is the clean surface produced on the molding. It requires no additional cleaning stage before e.g. adhering, lining, painting or metallizing onto the molding. The layer resists temperatures at least up to 200 deg. C and can be cleaned with a little solvent, e.g. benzene or isopropanol on a cloth, without damage. The layer remains effective even after some mechanical damage. Even after considerable damage, it is merely necessary to after-coat the mold