Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

Merck Patent Gesellschaft

Merck Gmbh

Ralf Anselmann

Sabine Schoen

Manuela Loch

Herwig Buchholz

Holger Winkler

Klaus Ambrosius

Martin Knapp

Frank Pfl&uuml;cker

Michael Kirschbaum

Uta Hillg&auml;rtner

Eike Poetsch

Gerhard Pfaff

Tamio Noguchi

Carsten Griessmann

Dieter Heinz

Lilia Heider

Ralf Rosskopf

Kurt Marquard

Marcus Mathias

Hansjuergen Driller

Nicole Schupp

Harald Dörr

G P Hellmann

Tillmann Ruhl

Günther Vulpius

Sara Rodriguez-Mozaz

Thomas Albrecht

Kazhisa Iwasa

Klaus Boehm

Uta Hillgärtner

The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiOlamellae, FeOlamellae or AlOlamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.

Pigment mixture

The present invention relates to multilayer pigments based on glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils, for the laser-marking of papers and plastics.

Multilayer pigments based on glass flakes

The present invention relates to lustrous black interference pigments based on a substrate mixture, characterised in that it has

Lustrous black interference pigments

The invention relates to mouldings having an optical effect which essentially consist of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material. The mouldings are characterized in that they are obtainable by a process in which the core/shell particles are heated to a temperature at which the shell is flowable, and the flowable core/shell particles are subjected to the action of a mechanical force.

Moulded bodies consisting of core-shell particles

The present invention relates to effect pigments based on thin glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils.

Effect pigments based on coated glass flakes

The invention relates to core-shell particles comprising a shell which forms a matrix, and a core which is essentially solid and has an essentially monodisperse size distribution, the refractive index of the core material being different from that of the shell material. The invention especially relates to the use of said particles for producing sensors for detecting mechanical forces and sensors having an optical effect, essentially consisting of core-shell particles comprising a shell which forms a matrix and a core which is essentially solid and has an essentially monodisperse size distribution, the refractive index of the core material being different from that of the shell material. The inventive particles are characterised in that at least one contrast material is stored in the matrix.

Extension and upsetting sensor

The invention relates to particles with an opalescent effect, which have a particle size in the range from 5 &mgr;m to 5000 &mgr;m, comprising monodisperse spheres having a diameter of 50 nm to 2 &mgr;m with a standard deviation of less than 5% in a packed and regularly ordered structure which is three-dimensional in terms of domains and is mechanically stabilized by physical or chemical modification.

Pigments

The present invention relates to pigment mixtures in the form of a dispersion or powder, consisting of at least two components, where component A comprises coated or uncoated BiOCl pigments in the form of a powder or dispersion, and component B comprises pearlescent pigments, platelet-shaped, needle-shaped or spherical colorants and/or fillers, and to the use thereof in paints, coatings, printing inks, plastics, powder coatings, plastic films, for the finishing of seed and in particular in cosmetic formulations.

Pigment mixture comprising BiOCI pigments

The invention relates to a conjugate which can be used for preparing dermatological and cosmetic compositions. The invention also relates to processes for preparing such conjugate and to its use.

Conjugate, its preparation and use

Highly light-scattering pigment mixture

The present invention relates to pigment mixtures comprising at least two components, component A being multilayer pigments based on mica, SiO flakes, glass flakes, Al O flakes or polymer flakes and component B being platelet-shaped, acicular or spherical colorants and/or fillers, and to the use thereof expecially in varnishes, paints, printing inks, powder coatings, plastics, ceramic glazes, polymer films and cosmetic formulations.

The invention relates to preparations of monodisperse spherical oxide particles in the form of free-flowing powders of agglomerates in which the particles are bonded to one another by a binder. With these preparations, the oxide particles can be homogeneously dispersed in polymer systems with particular ease.

Preparations of monodisperse spherical oxide particles

Spherical SiO.sub.2 particles with a size of from 5 to 500 nm coated at individual points with TiO.sub.2, Fe.sub.2 O.sub.3 or ZrO.sub.2 particles with a size of less than 60 nm. The coated SiO.sub.2 particles can be aftercoated with silanes or further metal oxides. The products obtained are used for pigmenting paints, printing inks, plastics and coatings or as sunscreen agents.

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Ramsen, Germany

Ralf Anselmann