摘要:
A pearlescent pigment comprises (a) synthetic mica substrate, (b) calcined ferrite coating on the substrate, and (c) an outer layer or treatment wherein said outer layer or treatment was added to the calcined ferrite coated synthetic mica in water.The pearlescent pigment may be used in exterior applications such as automotive paint systems.
摘要:
Use of luster pigments based on a platelet-shaped metallic substrate coated with a low refractive dielectric layer which does not absorb visible light, for pigmenting macromolecular materials.
摘要:
The present invention relates to a mixture of interference pigments, where the mixture comprises at least one interference pigment A comprising a substrate and a coating comprising metallic iron, and an interference pigment B comprising a substrate and a coating comprising metallic tin and in addition at least one metal oxide, to the use thereof in cosmetics, surface coatings, inks, plastics, films, in security printing, in security features in documents and identity papers, for colouring seed, for colouring foods, for laser marking or in medicament coatings and for the preparation of pigment compositions and dry preparations, and to cosmetics, surface coatings, inks, plastics, films, documents and identity papers, seed, foods or medicament coatings, pigment compositions and dry preparations comprising the mixture according to the invention.
摘要:
In a method for the manufacture of a nacreous pigment, in which a multi-layer film is produced by vacuum evaporation coating on a substrate and, after release from the substrate, the particles thus produced are comminuted to pigment particles of a desired size, vapor deposition of a plurality of layers taking place at separate locations within an evacuable container and the substrate being passed along the sources of evaporation, it is provided that at least a backing (A), in particular a silicon oxide layer, and at least a metal oxide layer (B), in particular a titanium oxide layer, are vapor-deposited on the substrate, in particular a circulating metal belt.
摘要:
The present invention relates to stabilized BiOCl pigments in which BiOCl is coated with one or more polymers and oxides, oxide hydrates or hydroxides of silicon, to a process for the production of the stabilized BiOCl pigments, and to the use thereof.
摘要:
In a method for the manufacture of a nacreous pigment, in which a multi-layer film is produced by vacuum evaporation coating on a substrate and, after release from the substrate, the particles thus produced are comminuted to pigment particles of a desired size, vapor deposition of a plurality of layers taking place at separate locations within an evacuable container and the substrate being passed along the sources of evaporation, it is provided that at least a backing (A), in particular a silicon oxide layer, and at least a metal oxide layer (B), in particular a titanium oxide layer, are vapor-deposited on the substrate, in particular a circulating metal belt.
摘要:
A laminar pigment which has an aluminum- or an aluminum-cerium oxide coating combined with a hydrolyzed silane coupling agent treated surface is used as a pigment for a powder coating composition. By combining the pigment with a powdery film-forming polymer, a film-forming composition which can be applied by electrostatic coating is produced.
摘要:
A pearlescent pigment comprises C glass flakes having a first layer comprising rutile titanium dioxide or iron oxide thereon and a second layer comprising hydrous oxide or hydroxide of a polyvalent cation, precipitate of said polyvalent cation, and an anionic polymeric compound. A hydrous layer of the rutile forming titanium dioxide or iron oxide is first formed on the glass flakes and the resulting coated flakes are calcined prior to the application of the second layer.
摘要:
Antioxidant-containing polyolefin compositions are provided including titanium dioxide-coated mica particles having an overcoating calcined thereon to prevent yellowing of the compositions. Reduced photo-darkening and improved densification of the pigment can also be achieved.
摘要:
The invention relates to a new nacreous pigment which contains a dye or a color pigment and is based on metal-oxide-coated mica particles or other layer silicate particles, and to a method for preparing it. The pigment particles consist of metal-oxide-coated, porous silica skeletons of mica particles or of other silicate particles, containing few or no cations and having at least one dye or color pigment attached to them. In the method, a) a preliminary-stage product is prepared from mica particles or other layer silicate particles and a metal-oxide coating, the metal-oxide coating being poorly soluble or insoluble in acids, b) the thus obtained metal-oxide-coated mica particles or other layer particles are leached with a mineral acid, possibly together with an oxidant, and c) the dyeing of the thus produced metal-oxide-coated, porous silica skeletons of mica particles or of other layer silicate particles, containing few or no cations, is carried out using at least one dye or one color pigment.