Patent ID: 8404333
Filing Date: 2013-03-26
Classification: B32B,B41M,B42D,Y10T

Abstract:
1. A method for producing a polymer layer composite that comprises a plurality of polymer layers wherein at least one polymer layer contains a laser-sensitive component, said method comprising the following steps: A) applying first personalized information to at least one of the polymer layers by means of an inkjet printing method as a colored inkjet printed layer, wherein the colored inkjet printed layer is made using a preparation comprising 0.1 to 10 wt. % of a binding agent being a polycarbonate derivative according to Formula I,  wherein the preparation comprises 45 to 99.5 wt. % of an organic solvent or a solvent mixture, R1 and R2 are each independently selected from hydrogen, halogen, C1-C8 alkyl, C5-C6 cycloalkyl, C6-C10 aryl, and C7-C12 aralkyl; M is an integer from 4 to 7; R3 and R4 are individually selected for each X, and are each independently hydrogen or C1-C6 alkyl; X is carbon and n is an integer greater than 20, such that at least for one atom X, R3 and R4 each alkyl, B) thereafter joining the polymer layer with the colored inkjet printed layer to the other polymer layers of the plurality of polymer layers, wherein the polymer layer with the colored inkjet printed layer is placed between two other polymer layers, and C) inscribing second personalized information into the polymer layer composite obtained in step B) by means of laser engraving.