Abstract: The present invention relates to pigment and coating compositions that are used to prepare pigmented coatings that exhibit geometric metamerism or metallic flop. The pigment compositions comprise a small particle size pigment and a flop-enhancing agent, which flop-enhancing agent is a copper phthalocyanine, an indanthrone or a carbazole dioxazine compound. A method of enhancing the flop of a pigmented polymeric coating by incorporating one or more flop-enhancing agents into the composition is also disclosed.

Abstract: The invention relates to a non-dusting, homogeneous pigment preparation containingat least 70% by weight of one or more flaky pigments,1-30% by weight of water,0.1-20% by weight of a humectant, andless than 1.00% by weight of one or more preservatives.

Abstract: A photochromic brightening pigment comprises a brightening pigment and a photochromic material which is encapsulated so as to adhere it to the surface of the brightening pigment.

Abstract: Disclosed is a process for coloring high-molecular-weight coatings and ink systems which comprises uniformly dispersing an effective pigmenting amount of a stir-in pigment in the coating or ink system; wherein the stir-in pigment is an organic pigment crude consisting essentially of non-platelet-shaped particles having an average particle size of from 0.5 to 25 .mu.m and/or a pigment composition consisting essentially of an organic pigment having an average particle size of from 0.01 to 25 .mu.m and inorganic filler pigment.

Abstract: Luster pigments based on coated plateletlike substrates comprising nitrogen-containing metal layers and if desired additionally one or more layers consisting essentially of colorless or selectively absorbing metal oxide, are prepared and used for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.

Abstract: A red pigment comprising: an iron oxide plate type particle, an aluminum compound layer which contains at least aluminum oxide and which is formed on the iron oxide particle, and the optical thickness of the aluminum compound layer being 150-500 nm. The red pigment according to the present invention has excellent color tone with high chroma from the orange to the blue red and moreover, and excellent stability.

Abstract: A pearlescent pigment based on a metal oxide-coated, platelet-shaped substrate and a top layer on the metal oxide layer, where the top layer comprises silicon dioxide, at least one further metal hydroxide or metal oxide hydrate and at least one organic coupling reagent. The further metal hydroxides or metal oxide hydrates are hydroxides or oxide hydrates of cerium, aluminum or zirconium, or mixtures thereof. The coupling reagents employed are organofunctional silanes, zirconium aluminates or metal acid esters.

Abstract: The application relates to conductive lamellar pigments in which lamellar substrate is coated with an electrically conductive layer, characterized in that a lamellar metal oxide or a lamellar material coated with one or more metal oxides is present as the lamellar substrate and that an optionally hydrated silicon dioxide layer or a layer of another insoluble silicate is arranged between the metal oxide layer and the conductive layer.

Abstract: The present invention relates to surface-modified pigments based on platelet-like substrates which, for improving the settling and redispersion behavior, have been recoated with a mixture comprising two metal oxides selected from the group consisting of silica, alumina and zirconium dioxide.

Abstract: The present invention relates to a low-viscosity offset printing ink which essentially comprises a binder, additives and 5-40% by weight of pearlescent pigments and has an improved transfer behavior for pearlescent pigments.

Abstract: The invention relates to a pigment mixture containing a component A composed of at least one platelet-shaped interference pigment and a pigment B composed of at least one platelet-shaped color pigment.

Abstract: A pearlescent pigment comprising micaceous particles having an adherent layer of rutile titanium dioxide thereon is prepared by effecting the deposition of hydrous titanium dioxide on the micaceous particles in the presence of iron and calcium, magnesium and/or zinc ions without the use of tin.

Abstract: A titanium dioxide- or iron oxide-coated mica pearlescent pigment having a coating which contains a combination of hydrated cerium and aluminum oxides has enhanced weatherstability.

Abstract: The application relates to deagglomerated and readily dispersible platelet-like substrates with a high degree of softness, which are characterized by a content of 0.5-20% by weight of spherical particles having a small diameter in comparison with the platelet-like substrate, and to a process for their preparation and their use.

Abstract: Disclosed are a flaky pigment in which the surfaces of fine flaky grains, as a pigment base, have been coated with ultra-fine barium sulfate grains having a mean grain size of 0.1 .mu.m or less. The pigment is produced by a process comprising reacting:(a) an aqueous solution containing a complexing agent capable of forming a complex compound with barium ion, as dissolved therein;(b) an aqueous solution containing a water-soluble barium compound as dissolved therein; and(c) an aqueous solution containing sulfate ion. The invention involves this method of preparing the flaky pigment, and use of the pigment in pigment coloration of cosmetics, top coats for cars, plastics, printing inks, domestic electrical appliances, coating materials and coating paints for building materials.

Abstract: The application relates to pigments based on plate-like substrates which, if desired, are covered with one or more layers comprising metal oxides or metal oxide mixtures, zinc oxide being deposited on the surface of the substrates with the formation of a not entirely continuous layer.

Abstract: 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.

Abstract: A composite synthetic mica powder having an excellent ultraviolet ray screening effect, the composite synthetic mica powder comprising a fine particle layer (B) containing one or more types of elements selected from the group of Te, Bi, Pb, Ce, Fe, Mo, Nb, W, Sb, Sn, V, Mn, Ni, Co, Zn and Ti is formed on the surface of scale-like mica particles (A). The covering ratio of particles (A) by particles (B) is in the range of 0.5 to 1; the ratio of particle size of the particles (B) to plane direction diameter of the particles (A) is 0.1 or less; and particle size of the particles (A) is 1 to 100 .mu.m. Also, a red synthetic mica which develops light-resistant red color closer to the color of human skin and ultraviolet rays, a method for manufacturing the same, and an ultraviolet ray screening agent which contains the synthetic mica. The synthetic mica is expressed by the following formula (I):X.sub.1/3.about.1 Y.sub.2.about.3 (Z.sub.4 O.sub.10)F.sub.2.times.0.75.about.2.times.0.

Abstract: The invention relates to a pigment containing carbon black having improved abrasion resistance comprising a platelet-shaped substrate coated with a metal oxide layer containing carbon black, wherein the carbon black is fixed on the substrate by means of an anionic or cationic and a nonionic surfactant and an organosilane compound.

Abstract: Mixtures useful as luster pigments for coloring paints, printing inks, plastics, decorative cosmetic preparations and ceramic products and usable in dry form in printing and coating processes consist ofA) iron oxide-coated aluminum particles andB) iron oxide-coated mica particles with or without a prior coating of a colorless, highly refractive metal oxide as essential components.

Abstract: Iron oxide-coated micaceous pigments having a chroma enhancing amount of a coating of a colorless metal oxide which has a refractive index of at least about 2.0 exhibit intensely colored effects.

Abstract: A pigment comprising leaf-like substrates particles having a particle size of 0.5 to 100 .mu.m, whereby the surface of said particles is covered with a metal oxide comprising titanium oxide and zirconium oxide in a molar ratio of 10:1 to 10:15 within a range of from 20 wt. % to 60 wt. % based on the total weight of the pigment possesses good adhesion and spreadability and has an effect of preventing ultraviolet rays and infrared rays.

Abstract: A pearlescent pigment comprising a platelet-shaped substrate coated with titanium dioxide, an oxide of copper, and optionally oxides of aluminum, and/or zinc, whereby the pigment is silver-gray.

Abstract: The present invention provides a paint composition which contains a non-glorious color pigment and a scaly glorious color pigment, wherein both the contained non-glorious color pigment and scaly glorious color pigment are selected so as not to be similar colors.

Abstract: A soap bar having the appearance of a polished wood grain is prepared by mixing the soap formulation with an iron oxide coated micaceous pearlescent pigment and extruding the combination such that the iron oxide coated micaceous pearlescent pigment is oriented generally unidirectionally.

Abstract: A soap bar having the appearance of a polished wood grain is prepared by mixing the soap formulation with an iron oxide coated micaceous pearlescent pigment and extruding the combination such that the iron oxide coated micaceous pearlescent pigment is oriented generally unidirectionally.

Abstract: 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.

Abstract: An article exhibiting a multicolor effect is obtained by combining a transparent substrate, an interference pigment and an absorption colorant, the pigment and colorant preferably united in the form of a combination pigment, in which the absorption colorant is of a color which is different from the transmission color of the interference pigment or the complement thereof.

Abstract: Bismuth oxychloride nacreous pigment coated with a rare earth metal compound is described. The coated pigment is prepared by adding a rare earth metal salt solution to a suspension of bismuth oxychloride pigment crystals to form a further suspension containing the pigment crystals and cerium hydroxide. The cerium hydroxide is then precipitated out of the further suspension to coat the pigment crystals. The coated pigment is endowed with improved weather fastness.

Abstract: Disclosed herein is a coating composition comprising plate-like iron oxide particles having an average particle diameter of 4 to 25 .mu.m, a lamellar thickness of 0.16 to 5 .mu.m and a plate ratio (average particle diameter:lamellar thickness) of 5:1 to 25:1, at least one pigment selected from the group consisting of a coloring pigment,a mica pigment and a metal powder pigment, a film-forming polymer, and an organic solvent.

Abstract: Disclosed herein is a coating composition comprising plate-like iron oxide particles having an average particle diameter of 0.5 to 5.0 .mu.m, a lamellar thickness of 50 to 500.ANG. and a plate ratio (the ratio of the average particle diameter to the lamellar thickness) of 50:1 to 500:1, at least one pigment selected from the group consisting of a coloring pigment, a mica pigment and a metal powder pigment, a film-forming polymer, and an organic solvent.

Abstract: Colored pigments having an improved stability in decorative colors, engobes, glazes, and enamels, based on platelet-type substrates coated with metal oxides, in which the coating is free from alkaline earth metal oxides and contains a colored metal oxide or metal hydroxide and at least 10% by weight of aluminum oxide, are outstandingly suitable for pigmenting glazes and enamels.

Abstract: Metal oxide coated mica pigments are provided with enhanced light and moisture stability by providing on the particle surfaces a coating of hydrous aluminum oxide.

Abstract: Flaky colored pigment comprising fine flaky powder as base material, and zinc oxide and an inorganic color pigment attached to the surface thereof.

Abstract: A metallic, gold colored composition comprising an olefin polymer, a mica-based gold pigment, a mica-based bronze pigment, carbon black, and optionally, a yellow pigment is provided. Additionally, a process to produce a glossy, metallic, gold colored polyolefin product in a grit blasted mold is provided.

Abstract: Iron oxide black pigments useful as coloring pigments for lacquers and plastics are prepared by an improved process wherein finely divided iron oxide black suspensions obtained from the precipitation processor the aniline process are filtered, washed, dried and ground with the improvement in the process comprising grinding the dried iron oxide pigment in a jet mill with air as the grinding medium and with a water content of from about 1 to 6% by weight based on the iron oxide black pigment input to the process.

Abstract: Iron blue characterized by an ammonium content of .+-.5.5 weight %, a potassium content of <0.1 weight %, a sodium content of <0.1 weight %, a color strength in a toluene intaglio printing ink up to 15% greater than the standard Vossen blue 705/80 (calculated in accordance with DIN 53 234) and the color spacings (determined in accordance with DIN 6174 relative to Vossen blue 705/80 as standard) of.DELTA.a*:6.5.+-.0.5.DELTA.b*:1.3.+-.0.3.DELTA.c*:-1.5.+-.0.5It is prepared by placing an aqueous solution of sodium hexacyanoferrate (II) in a reaction vessel at a pH of 7.0 and a concentration of 45.+-.5 g/l, calculated as Fe(CN).sub.6 together with ammonium sulfate having a concentration of 14.+-.1 g/l at a temperature of 22.degree.-23.degree. C., adding an aqueous iron-II sulfate solution at a pH of 2.0, a concentration of 100.+-.10 g/l, and a temperature of 22.degree.-23.degree. C., and precipitating the white dough until an excess of iron up to 1.4-1.

Abstract: Improved iron oxide pigments useful in the manufacture of magnetic recording carriers or for coloring inorganic or organic materials are iron oxide pigments having an iron (II) content of at least 5% by weight calculated as FeO after-treated with a phenolic compounds of the formula ##STR1## wherein X is O or NH, andR is straight chained or branched alkyl with 1 to 30 carbon atoms, alkenyl with 2 to 30 carbon atoms, cycloalkyl with 5 to 12 carbon atoms, or hydrogen.

Abstract: A cosmetic formulation comprising a cosmetically compatible adjuvant and particles of at least one colored pigment is improved by using as the colored pigment a synthetic platelet-shaped iron oxide pigment. The resulting pigment enables improved skin feel in cosmetic preparations.

Abstract: A method is described in which a layered lattice silicate is surface modified with an organic material by reacting said layered lattice silicate in particulate form with a reactant system comprising gaseous NH.sub.3 at temperatures below about 1000.degree. C. and contacting the aminated silicate in particulate form with an organic compound selected from the group of monomers, co-monomers, prepolymers and compounds condensable with the amine group, such as a nylon precursor, in the presence of gaseous hydrogen. The surface modified silicates are useful as fillers in a filled polymer system comprising a matrix polymer and a filler.

Abstract: The invention relates to platelet-shaped pigments of the formula Al.sub.x Fe.sub.2-x O.sub.3-y, wherein x has a value from 0.02 to 0.5 and y has a value from 0.3 to 1.0, which are optionally coated with further oxides.

Abstract: Finely divided magnetic particles of hexaferrite pigments with a W-structure having the compositionE.sub.x M.sub.m (I) M.sub.n (II) Fe.sub.18 -(m+n)O.sub.27-y D.sub.ywhereinE is at least one element from the group comprising alkaline earth metals, alkali metals, lanthanides or lead,M(I) and M(II) are independently at least element from the group comprising metals or semi-metals andD is at least one element from the group of halogens and chalcogens and0.8.ltoreq.x.ltoreq.1.2,1.0.ltoreq.m.ltoreq.3.0,0.ltoreq.n.ltoreq.8.0,0.ltoreq.y.ltoreq.5.

Abstract: Dispersed insoluble colored pigments are coated on the surface of mica and oxide-coated mica pigments by deposition in a precipitate of a polyvalent cation and an anionic polymeric substance. The resulting combination pigments have more than one color, depending on the angle of viewing.