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:
Mar. 10, 2015
Filed:
Dec. 02, 2011
Bart Waumans, Puurs, BE;
Ingrid Geuens, Emblem, BE;
Paul Callant, Edegem, BE;
Hubertus Van Aert, Pulderbos, BE;
Bart Waumans, Puurs, BE;
Ingrid Geuens, Emblem, BE;
Paul Callant, Edegem, BE;
Hubertus Van Aert, Pulderbos, BE;
Agfa-Gevaert N.V., Mortsel, BE;
Abstract
A security document precursor including, in order, at least: a) a transparent biaxially stretched polyethylene terephthalate foil; b) a colorless color forming layer containing at least an infrared absorber, a color forming component and a polymeric binder; and c) a polymeric support; wherein the colorless color forming layer contains at least one component forming a compound having a melting temperature of less than 20° C. upon laser marking the colorless color forming layer with an infrared laser. Methods for securing a security document using the security document precursor are also disclosed.