Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

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

Forming permanent mold-release layer by plasma polymerization, varies conditions over time, to deposit release layer with property gradient.
 
: Wochnowski, H.; Klyszcz-Nasko, H.; Baalmann, A.; Vissing, K.

:
Frontpage ()

DE 2000-10034737 A: 20000717
DE 2000-10034737 A: 20000717
WO 2001-DE2112 A: 20010605
EP 2001-955199 AW: 20010605
DE 10034737 C2: 20020711
EP 1301286 B1: 20040407
B29C0033
B05D0007
B05D0007
German
Patent, Electronic Publication
Fraunhofer IFAM ()

Abstract
Verfahren zur Herstellung einer permanenten Entformungsschicht durch Plasmapolymerisation auf der Oberflaeche eines Formteilwerkzeugs, wobei durch zeitliche Variation der Polymerisationsbedingungen ein Gradientenschichtenaufbau in der Entformungsschicht erzeugt wird.

 

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.

: http://publica.fraunhofer.de/documents/PX-72745.html