Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft

Merck Patent Gesellschaft MIT Beschraenkter Haftung

Merck Patent Gesellschaft MIT Beschr&auml;nkter Haftung

Helge Bettina Kniess

Gerhard Pfaff

Matthias Kuntz

Reiner Delp

Klaus Bernhardt

Dieter Heinz

Peter Reynders

Franciscus Wilhelmus Maria Gelissen

Franciscus Gerardus Henricus Van Duijnhoven

Ulrich Quittmann

Silvia Rosenberger

Reiner Vogt

Reinhold Rueger

Johann Dietz

Stephanie Andes

Klaus Ambrosius

Lilia Heider

Gerhard Edler

Marcus Mathias

Manuela Loch

Wolf-Dietrich Weber

Nicole Schupp

Margarete Herbski

Elke Steudel

Hans-Juergen Brehm

Reinhold Rüger

Sabine George

Oliver Robert Piening

The present invention relates to laser-markable polymers and coatings which are distinguished by the fact that they comprise tin/antimony oxide-coated spherical TiOparticles of defined particle size as laser additive.

Laser-markable polymers and coatings

The present invention relates to pigments based on bismuth compounds and to the use thereof, preferably as laser-absorbing additive, and to a process for the preparation thereof.

Pigments based on bismuth compounds

The present invention relates to an LDS-active additive for LDS plastics, to a polymer composition comprising an additive of this type, and to an article having metallized conductor tracks in which a polymeric basic body of the article or a polymeric coating on a basic body comprises an LDS additive of the said type.

Additive for LDS plastics

The present invention relates to pigments based on bismuth compounds and to the use thereof, preferably as laser-absorbent additive, and to a process for the preparation thereof.

Pigments

The present invention relates to pigments comprising a substrate and, applied thereto, an iron-containing coating comprising metallic iron, process for the preparation of the pigments according to the invention, and the use thereof.

The present invention relates to an intrinsically markable laser pigment in the form of a reducible metal compound in the form of a preparation, and to the use thereof in inorganic systems and in organic polymers, in particular plastics, surface coatings, automobile paints, powder coatings, printing inks, paper coatings and papermaking stocks.

Pigment for laser marking

The present invention relates to interference pigments based on coated flake-form substrates which are distinguished by the fact in that they comprise

Interference pigments

The present invention relates to semitransparent interference pigments having a neutral mass tone comprising a substrate and a coating comprising metallic tin and additionally at least one metal oxide, to a process for the preparation of these pigments, and to the use thereof.

Semi-transparent interference pigments containing tin

The invention relates to an interference pigment with a high covering power, comprising at least one FeTiO-containing layer, which is applied to a lamellar inorganic substrate and whose thickness and absorbing power can be precisely set. The invention also relates to a method for producing this interference pigment and to the use thereof.

Interference pigment with a high covering power

Laser-markable pigments which are distinguished by the fact that an absorber is coated with a marker and optionally with a diffusion barrier are described. Further, processes for the preparation of the laser-markable pigments and methods for using them are described. The absorber is preferably an inorganic pigment or a filler. The marker is preferably an intrinsically laser-markable polymer, particularly a polyethylene terephthalate, acrylonitrile-butadiene-styrene, polystyrene, polyphenylene ether, liquid-crystal polymer or polyphenylene sulfide.

Laser-markable pigments containing an absorber coated with a marker

The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.

Multilayer pigments based on coated metal platelets

Laser-markable plastics

Colored interference pigments

The invention relates to multilayered interference pigments which comprise a platelet-shaped substrate of silicon dioxide which is coated alternately with layers of light-transparent materials having refractive indices of n>1.8 and layers of light-transparent materials having refractive indices of n&lE;1.8, where the optical thickness of the platelet-shaped substrate and the optical thickness of the individual layers of light-transparent materials having refractive indices of n&lE;1.8 are the same.

Multilayered interference pigments

The present invention relates to laser-markable plastics which comprise, as dopant, graphite particles having one or more coatings.

Growing community of inventors

Weiterstadt, Germany

Helge Bettina Kniess