Layer composite consisting of a photopolymer film and an adhesive layer

摘要

The present invention relates to a layer composite comprising an exposed photopolymer film and an adhesive layer which is connected to the photopolymer film at least in certain regions, wherein the photopolymer film comprises crosslinked polyurethane matrix polymers A), crosslinked writing monomers B) and a monomeric fluoroethane additive C), wherein the adhesive layer is in the form of a diffusion barrier for the fluoroethane additive C). The invention also relates to the use of the layer composite for producing chip cards, ID documents or 3D images, as a product protective label, as a label, in banknotes in the form of a strip or window or as holographically optical elements in displays.

主权项

1. A laminate comprising an exposed photopolymer film and a layer of adhesive joined at least regionally to the photopolymer film, the photopolymer film comprising crosslinked polyurethane matrix polymers A), crosslinked writing monomers B) and a monomeric fluorourethane additive C), wherein the layer of adhesive is designed as a diffusion barrier for the fluorourethane additive C), wherein on an ATR-IR measurement there is no time-dependent change in the absorption spectrum and at no point in time an intensity difference of more than 3% in an absorption peak in a difference spectrum, if the layer of adhesive is wetted with the fluorourethane additive C), wherein the layer of adhesive comprises a urethane-based adhesive of high network density, which is obtained by reacting components that have number-average equivalent molar masses of <1500 g/mol.