The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2020
Filed:
Oct. 03, 2016
Hueck Folien Gesellschaft M.b.h., Baumgartenberg, AT;
Sonja Landertshamer, Linz, AT;
Stephan Trassl, Baumgartenberg, AT;
Hueck Folien Gesellschaft M.B.H., Baumgartenberg, AT;
Abstract
A method for producing a security element with a metallized optical diffraction structure in an embossed coating layer in which a coating layer is applied onto a support, then embossed and cured; structural depressions, structural elevations, and an optical diffraction structure are produced by embossing the coating layer, then a reflective layer is provided on the structural depressions and structural elevations of the embossed coating layer by means of metallization, and after that, this reflective layer is selectively demetallized. The optical diffraction structure is embossed into at least one structural elevation and the selective demetallization includes a bonding of at least the metallized structural elevation that has the optical diffraction structure to a transfer support and then a separation of this structural elevation bonded to a transfer support both from the support and from at least one metallized structural depression adjoining this structural elevation through removal of the transfer support from the support.