Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Bayer Materialscience Ag

Bayer Aktiengesellschaft

Bundesdruckerei Gmbh

Bayer Intellectual Property Gmbh

Covestro LLC

Georgios Tziovaras

Heinz Pudleiner

Stefan Janke

Kira Planken

Mehmet-Cengiz Yesildag

Roland Kuenzel

Christoph Koehler

Klaus Meyer

Thomas Fäcke

Marc-Stephan Weiser

Chung Leung Wong

Dirk Pophusen

Ciro Piermatteo

Horst Berneth

Friedrich-Karl Bruder

Thomas Rölle

Dennis Hönel

Joachim Petzoldt

Jörg Fischer

Joerg Nickel

Florian Johannes Stempfle

Roland Künzel

Hans-Georg Gehrke

Cengiz Yesildag

Stefan Trölenberg

Franziska Peinze

Helge Kosthorst

Kay Lautwein

Daopeng Wang

Yizhe Zhao

Theivanayagam Deivaraj

Meng Feng

Christoph Köhler

Matthias Grötsch

Stefan Trolenberg

Christopher Cooper

Stefan TRÖLENBERG

The invention relates to a process for partial colouring, in particular colour laser engraving, of plastic parts, preferably of thermoplastic parts, very particularly preferably of thermoplastic parts comprising a layer construction, comprising the steps of: i) providing a plastic part (A) having at least one surface; ii) laying a colour tape atop at least one portion of the at least one surface of the plastic part (A) to obtain a surface of the plastic part (A) covered with the colour tape; iii) irradiating the plastic part (A) from ii) with focused, preferably nonionizing, electromagnetic radiation (C) on at least one portion of the surface of the plastic part (A) covered with the colour tape, wherein the partial colouring is effected essentially only at the sites on the plastic part (A) irradiated in step iii), wherein the wavelength range of the focused, preferably nonionizing, electromagnetic radiation (C) is in a range from 200 to 20 000 nm, preferably in a range from 300 to 18 000 nm, particularly preferably in a range from 350 to 16 000 nm.

Process for partial colouring of plastic parts using solid colourants in colour- carrier layers

Provided is a layer structure, preferably a security form in a book cover, particularly preferably a security form in a book cover for identification or security documents, comprising at least a) a first radiation-engravable layer a) containing at least one polymeric material; and b) at least one further layer b) containing at least one polymeric material, preferably a thermoplastic elastomer, preferably a thermoplastic polyurethane with a hardness of ≥40 Shore A according to DIN ISO 7619-1-2012-2 to ≤95 Shore D according to DIN ISO 7619-1-2012-2; wherein the further layer b) overlies the first layer a) at least partly to form an overlapping region, and wherein a coherent engraving partly extends in the overlap region, preferably in the further layer b), and partly in the portion of layer a) that extends outside the overlap region, most preferably exclusively in the further layer b). The invention also relates to a method for producing this layer structure and to a laminate comprising such a layer structure and to the use of the layer structure in a security document.

Layer structure with engraving as visible security element

The present invention relates to layer composites comprising at least one opaque layer a) and at least one transparent layer b), wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C.) of layer a) is ≥156° C., preferably from ≥156° C. to ≤250° C., particularly preferably from ≥156° C. to ≤230° C., and wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C./h), of layer a) is higher than that of layer b), a method for producing such layer composites and security documents, preferably identification documents, comprising such a layer structure.

Plastic films having high Vicat softening temperature in layered structures

The invention is related to a layered structure with at least one layer a. of a material with a VST≥85° C. comprising at least one cutting line b. reaching through the whole thickness of the layered structure surrounding at least one first portion which is extractable and reinsertable manually from the layered structure as well as a production process for such a layered structure.

Layered structures with cutting lines

The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a) and a second surface a) which runs substantially parallel to the surface a), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b) facing towards the first layer (A) and another surface b) facing away from the first layer (A) and running substantially parallel to the surface b); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a) of the layer (A), on the face of the additional surface b) of the additional layer (B), between the two layers (A) and (B), or, in the event of additional layers (C), a combination of at least two of said options, and an image of the colorful or black part-engraving is located on the surface of the layer structure in the form of a nontransparent structural modification forming an additional outer surface of the layer structure and lying opposite the first surface a). The invention likewise relates to the production of the layer structure as well as to a security document containing the layer structure according to the invention.

Layer structure with modified structure, and production thereof

The present invention relates to a layered structure containing at least one layer (i) comprising a thermoplastic material and at least one further layer (ii) comprising a thermoplastic material bearing at least one embossed hologram, to a process for producing such layer composites and to security documents, in particular identification documents, having the layered structure according to the invention.

Plastic films for ID documents with better lightness of embossed holograms

The invention relates to an improved method for the partial coloring, in particular for the color laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts that have a multi-layered structure, to the resulting partially colored, preferably color laser engraved, plastic parts, in particular thermoplastic plastic parts, and to a device for the partial coloring of plastic parts.

Method for the partial coloring of plastic parts

The present invention relates to an improved method for the partial colouring, in particular for the coloured laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts, comprising a layer structure, and to the resulting partially coloured, preferably coloured and laser engraved, plastic parts, in particular thermoplastic plastic parts.

Method for the partial colouring of plastic parts

The present invention relates to plastic films with improved laser engraving capability, chemical resistance and mechanical stress, special embodiments of such films in the form of co-extrusion films, layer structures comprising such films, use of such films, as well as security documents, preferably identification documents, containing such films.

Plastic films for ID documents having improved properties for laser engraving and improved chemical resistance

The present invention concerns a method for the partial dyeing, in particular for the colour laser engraving, of plastic components, in particular thermoplastic plastic components, more particularly thermoplastic plastic components, comprising a layer construction as well as the resulting partially dyed, preferably colour laser engraved plastic components, in particular thermoplastic plastic components.

The present invention relates to a layer structure having improved properties for laser engraving, to particular embodiments of said layer structures in the form of co-extrusion films, and to security documents, preferably identification documents having said layer structures.

Layered structure and films for ID documents having improved properties for laser engraving

The invention relates to a datasheet () for integrating into a preferably book-like security and/or value document. The datasheet () is made of at least two stacked layers () made of an organic polymer material. A textile () is arranged at least in a sub-region between the layers () and outside of the layers () so as to form a tab (), and the textile () is at least partly coated on one or both sides and/or saturated with an organic binder () at least in the region between the layers () and is bonded to the two layers () by means of the binder ().

Data sheet for a security and/or value document

The present invention relates to a security document and/or document of value with a hologram in a visually changeable window as a novel security element, and also to a method for producing the same.

Security document and/or document of value containing a visually changeable window with a hologram

The invention relates to polycarbonate-based or copolycarbonate-based security documents and/or documents of value which contain at least one hologram integrated in the card body, and to a method for producing such security documents and/or documents of value.

Polycarbonate-based security documents and/or documents of value with a hologram in the card body

The invention relates to a special layer construction and a special film of plastic for the production of such a layer construction which is suitable for printing by means of dye diffusion thermal transfer printing, a process for the production thereof and a security and/or valuable document comprising such a layer construction.

Growing community of inventors

Wuppertal, Germany

Georgios Tziovaras