摘要:
Effect pigments based on interference pigments coated with phthalocyanine or metal phthalocyanine dyes, characterized in that the dyes are applied to the pigments as a strongly adhering film without the aid of binders or other auxiliary materials, are outstandingly suitable for use in formulations such as paints, dyes, plastics and cosmetics.
摘要:
THE PREPARATION OF HIGH PERFORMANCE COMPOSITE MICAPOLYMER MATERIAL. IN ONE SYSTEM POLYSTYRENE IS COATED ONTO MICA FLAKES HAVING A HIGH ASPECT RATIO OF AT LEAST ABOUT 20, AND PREFERABLY IN THE RANGE OF 50 TO 100 OR HIGHER. THE MICA FLAKES ARE COATED WITH THE POLYMER BY IN SITU POLYMERIZATION ONTO THE MICA PARTICLES IN SUSPENSION. VARIOUS ADDITIVE MATERIALS MAY BE EMPLOYED TO ENHANCE THE EFFICIENCY OF THE IN SITU COATING STEP. FOR EXAMPLE, A SILANE COUPLING AGENT MAY BE ADDED TO AN AQUEOUS SLURRY OF THE MICA PARTICLES. AS ANOTHER EXAMPLE A COPOLYMERIZABLE MONOMER SUCH AS DIMETHYLAMINOETHYLMETHACRYLATE (DMAEMA) MAY BE ADDED. THE COATED MICA PARTICLES ARE FILTERED AND THE RESULTANT COMPOSITE POWDER IS USEFUL FOR THE MOLDING OF HIGH PERFORMANCE COMPOSITE PARTICLES.
摘要:
A pigment contains one or more substantially spherical-shaped beads. Each substantially spherical-shaped bead includes one or more high aspect ratio particles encapsulated within an encapsulating material. Resinous compositions containing this pigment and a plastic, for example a polycarbonate, have a flowline-free colored, sparkling and/or metallescent appearance.
摘要:
Platy pigments with good tactile characteristics are obtained by treating such pigments with a compound of the general formula: ##STR1## where m is an even number from 8 to 18 and n is 3 or 4 under defined conditions. N.epsilon.-lauroyl lysine is preferred. The pigments are especially useful in cosmetic compositions such as eye shadow.
摘要:
A process for rendering nacreous pigments hydrophobic, the pigments being based on mica platelets coated with metal oxides, comprises coating the pigments in aqueous suspension with a chromium (III) or aluminum (III) hydroxide or silicate, and then treating the coated pigments with a solution of a hydrocarbon carboxylic acid having more than four carbon atoms per carboxyl group.
摘要:
A pigment contains one or more substantially spherical-shaped beads. Each substantially spherical-shaped bead includes one or more high aspect ratio particles encapsulated within an encapsulating material. Resinous compositions containing this pigment and a plastic, for example a polycarbonate, have a flowline-free colored, sparkling and/or metallescent appearance.
摘要:
A pigment contains one or more substantially spherical-shaped beads. Each substantially spherical-shaped bead includes one or more high aspect ratio particles encapsulated within an encapsulating material. Resinous compositions containing this pigment and a plastic, for example a polycarbonate, have a flowline-free colored, sparkling and/or metallescent appearance.
摘要:
The invention relates to a colored pigment comprising a plurality of metallic or mica flakes with a plurality of polymer encapsulated pigment particles adhered to the individual flakes. The colored pigments are useful for imparting color and metallic luster to surface coatings.
摘要:
A process for preparing pigment dyes comprising reducing a colloidal dispersion of an impure dye to form a solution of the leucobase, introducing into this solution a finely divided substrate and, by adding an oxidizing agent, oxidizing the leucobase to form the vat dye, which thereby precipitates and deposits on the substrate.
摘要:
Lustrous pigments having a wide range of colors and especially suitable for the cosmetics industry are produced by forming an aluminum lake on a micaceous pigment coated with aluminum hydroxide.