Merck Patent Gmbh

Merck Patent Gesellschaft

Lacotra Gmbh

European Central Bank

Sylke Klein

Sabine Schoen

Ralf Petry

Werner Stockum

Armin Kübelbeck

Armin Kuebelbeck

Lilia Heider

Berthold Schum

Burkhard Krietsch

Wilfried Schmidt

Katsumi Tanino

Michael Weiden

Ute Honeit

Jun Nakanowatari

Kiyohiko Kawamoto

Tanja Lueckert (formerly Sandner)

Claudia Wiegand

Matthias Quenzer

Heidemarie Montag

Klaus-Christian Ullmann

Dieter Heck

Wolfgang Kraas

Jesus Antonio Arrieta

The invention relates to a method for transferring colored markings or labels onto plastic surfaces by means of a laser beam, to a transfer medium for carrying out said method and to articles, the plastic surfaces of which are laser-marked or laser-labeled by way of such a method.

Methods for transferring colored markings onto plastic surfaces

The present invention relates to a printed image comprising flake-form effect pigments which has striking matt/gloss effects, to a process for the production of a printed image of this type, and to the use thereof, in particular in security printing.

Printed image

The present invention relates to a method for producing a marking in a coating on a substrate or on the surface of a molding, where the marking represents a negative marking within a luminescent surrounding field and is generated using a laser beam, to a marking produced with the aid of the method, and to the use thereof, in particular for the labeling of products.

Method for producing a marking

The present invention relates to a process for the laser treatment of effect pigment-containing coatings, to coatings produced using this process, and to the use thereof in decorative and security products.

Process for the laser treatment of coatings

The present invention relates to a golden interference pigment which is suitable, in particular, for printing processes, to a process for the preparation of a pigment of this type, and to the use thereof.

Gold pigment

The invention relates to novel etching media in the form of etching pastes for etching selected areas or the entire area of silicon surfaces and layers, in addition to the use of said media.

Etching pastes for silicon surfaces and layers

The present invention relates to the sealing of inscriptions on plastics which have been produced by means of lasers on the plastic surface.

Sealing of inscriptions on plastics

To provide functional paste with etching activity and good electrical properties. Functional paste comprising a metal powder, an etching agent, a binder and an organic solvent.

Functional paste

The present invention relates firstly to HF/fluoride-free etching and doping media which are suitable both for the etching of inorganic layers and also for the doping of underlying layers. The present invention secondly also relates to a process in which these media are employed.

Combined etching and doping media

The present invention relates to a novel printable etching medium having non-Newtonian flow behavior for the etching of surfaces in the production of solar cells and to the use thereof. In particular, the invention relates to corresponding particle-containing compositions by means of which extremely fine structures can be etched very selectively without damaging or attacking adjacent areas.

Printable medium for the etching of silicon dioxide and silicon nitride layers

The invention concerns etching and doping substances free of hydrochloric/fluoride acid used for etching inorganic layers as well as for doping subjacent layers. The invention also concerns a method wherein said substances are used.

Growing community of inventors

Rossdorf, Germany

Sylke Klein