Eckart Gmbh

Eckart Gmbh & Co. Kg

Ostrolenk Faber Llp

Byk-chemie Gmbh

Stefan Trummer

Frank Henglein

Dieter Proelss

Günter Kaupp

Ulrich Schmidt

Michael Becker

Andreas Kroell

Thomas Schlegl

Werner Ostertag

Stefan Engel

Klaus Greiwe

Peter Krüger

Mariel Brauer

Joerg Maennig

Werner Pieper

Jürgen Omeis

Wolfgang Pritschins

Dirk Schumacher

Bärbel Gertzen

Wolfgang Herzing

Robert Maul

Christian Wolfrum

Martin Schaal

Marco Greb

Katrin Wczasek

Jörg Männig

Stephan Roth

Walter Ziegler

Ralf Deinzer

Manfred Pleier

Karin Wczasek

Dieter Prölss

Andreas Kröll

Klaus Sulek

The invention relates to aluminum pigments which are at least partially coated with lubricant, wherein the aluminum pigments have a relative breadth of thickness distribution &#x394;h of from 30% to less than 70%, as determined by a scanning electron microscope thickness count and as calculated on the basis of the corresponding cumulative breakthrough curve of the relative frequencies of occurrence, according to the formula &#x394;h=100&#xd7;(h&#x2212;h)/h, and an X-ray diffractogram, measured on pigments in substantially plane-parallel orientation, having one or two main peaks which do not correspond to the [111] reflexes. The invention further relates to a method for the production of said aluminum pigments and to uses thereof and also to nail varnishes and printing inks containing said aluminum pigments of the invention.

Thin aluminum pigments having a narrow thickness distribution, method for producing same, and use of aluminum pigments

The invention relates to metallic effect pigments with coating, comprising a platelet-shaped substrate, where the coating comprises at least one hybrid inorganic/organic layer, the hybrid layer having at least partly an inorganic network that has one or more inorganic oxide components, and having at least one organic component, the organic component being at least partly an organic oligomer and/or polymer which is covalently bonded at least partly to the inorganic network via one or more organic network formers. The invention further relates to a method of producing these metallic effect pigments, and to their use.

Metal effect pigments comprising a mixed inorganic/organic layer, method for the production of such metal effect pigments, and use thereof

A metallic effect pigment with an additive, the additive being applied on at least a portion of the metallic effect pigment. The additive comprises, as structural units, at least one carboxylic acid having at least 4 carbon atoms and also at least one polyglycol ether. The carboxylic acid and the polyglycol ether are bonded covalently to one another. The disclosure is also directed to a method for producing these metallic effect pigments, and to the use thereof, as well as to a printing ink comprising the pigments.

Metal effect pigment with additive

The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers. The invention also relates to a method for the production of such pearlescent pigments.

Pearlescent pigments coated with mixed inorganic/organic layers and method for the production thereof

The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers. The invention also relates to a method for the production of such pearlescent pigments.

The use of a mixture with spherical metal particles and metal flakes as a laser marking or laser weldability agent in a plastic, wherein the particle size distribution of the spherical metal particles and metal flakes, as determined with laser granulometry, in the form of the volume-averaged cumulative undersize particle size distribution, has a Dvalue of &#x3c;100 &#x3bc;m and a D&#x3c;60 &#x3bc;m. Further, a masterbatch comprising a mixture with spherical metal particles and metal flakes also can be used. Additionally, the present subject matter may further relate to a laser markable and/or a laser weldable plastic comprising a mixture with spherical metal particles and metal flakes.

Use of a mixture comprising spherical metal particles and metal flakes as laser-marking or laser-weldability agents and laser markable and/or laser weldable plastic

The invention relates to an aqueous coating composition containing at least one water-compatible film-forming agent and aluminum pigments that are provided with at least one inorganic anti-corrosion layer, wherein the thickness of the aluminum pigments provided with at least one inorganic anti-corrosion layer averages less than 160 nm. The invention further relates to a process for the production of such a coating composition and to the use of such a coating composition and to objects coated with said coating composition.

Aqueous coating composition with corrosion resistant thin-coat aluminum pigments, method for production and use thereof

Particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 &#x3bc;m and the colorants at least include at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method to a method for producing the colored glass particles and to the use thereof.

Coloured glass particles, method for the production thereof and use thereof

Iron effect pigments having a thickness distribution, determined via thickness counting by scanning electron microscopy (SEM), as a cumulative undersize distribution with:

Thin, platelet-shaped iron pigments, production thereof and use thereof

The present disclosure is directed to a pigment preparation comprising aluminum effect pigments, a solvent and at least one additive, wherein the aluminium effect pigments have a dvalue of the volume averaged particle size distribution curve of less than 15 &#x3bc;m, the at least one additive is a phosphorous containing additive, and the solvent has a viscosity equal to or more than 1.8 mPa's at 25&#xb0; C. The disclosure is further directed to an ink jet printing ink as well the use thereof.

Pigment preparation and ink jet printing ink

The present disclosure is directed to a pigment preparation comprising aluminum effect pigments, a solvent and at least one additive, wherein the aluminum effect pigments have a dvalue of the volume averaged particle size distribution curve of less than 15 &#x3bc;m, the at least one additive is a phosphorous containing additive, and the solvent has a viscosity equal to or more than 1.8 mPa's at 25&#xb0; C. The disclosure is further directed to an ink jet printing ink as well the use thereof.

Platelet-shaped, copper-containing, metallic effect pigments which have a copper content of 60% to 100% by weight, based on the total metal content, the metal pigments having a thickness distribution as determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution,

Platelet-shaped, copper-containing, metallic effect pigments, process for preparing them and use thereof

The present invention is concerned with soft-magnetic iron effect pigments with metallic luster, which are produced by grinding reductively treated carbonyl iron powder, and which are passivated either during grinding or subsequent to the grinding. The products find application in the decorative and functional fields in paint and lacquer coatings, coloring of plastics, in printing, cosmetics, and glass and ceramics.

Growing community of inventors

Nürnberg, Germany

Stefan Trummer