Abstract: The use of titanium dioxide particles coated by an organic coating for increasing the hydrolysis resistance of an oriented polyester film, particularly wherein the organic coating does not comprise or is not derived from a silane, and particularly wherein the organic coating is selected from an organophosphorus compound and a polymeric organic coating; and oriented polyester films comprising such titanium dioxide particles coated by an organic coating; and photovoltaic cells comprising such films.

Abstract: The present invention relates to surface functionalized titanium dioxide nanoparticles, a method for its production, a coating composition, comprising the surface functionalized titanium dioxide nanoparticles and the use of the coating composition for coating holo-grams, wave guides and solar panels. Holograms are bright and visible from any angle, when printed with the coating composition, comprising the surface functionalized tita-nium dioxide nanoparticles.

Abstract: The invention relates to a process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties of dispersant, using at least one lithium ion-containing compound, the calcium carbonate material obtained by this process, the use of the calcium carbonate materials in paper, paints and plastics, as well as the use of the lithium ion-containing compounds in the manufacturing process.

Abstract: The invention relates to a process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties of dispersant, using at least one lithium ion-containing compound, the calcium carbonate material obtained by this process, the use of the calcium carbonate materials in paper, paints and plastics, as well as the use of the lithium ion-containing compounds in the manufacturing process.

Abstract: The present invention relates to effect pigments based on uncoated or coated flake-form substrates having an outer coating comprising a) TiO2 and b) Al2O3, MgO and/or CaO and c) SiO2 and d) ZnO and/or e) at least one mixed oxide of the elements mentioned under a) to d), and to the use thereof, inter alia in paints, coatings, printing inks, plastics and cosmetic formulations.

Abstract: A process of producing a kaolin product for paper coating includes mining kaolin ores by hydromechanization and then producing kaolin slurry; classifying by centrifugal sedimentation; chemical bleaching; eliminating iron ions by circular rinsing; removing water by pressure filtration; producing slurry by dispersing filter cakes, in which complex dispersants, pH adjustor and intercalator are added; delaminating; classifying by vibrating sieve; and spray drying: spray driers are restructured by adding insulating layers on packing auger, elevator scoop and bunker at first; the kaolin slurry J which has passed through vibrating sieves is dried in high speed centrifugal spray drying tower and the moisture of kaolin powder is controlled in 3 wt. %-5 wt. %, and the kaolin product for paper coating is obtained. The process characterizes in stable properties, high efficiency, and high viscosity content and fine particle size of the kaolin products produced.

Abstract: A process for the production of finely particulate, inorganic solids by precipitation of the finely particulate inorganic solids from solution is described, in which the surface of the inorganic solids particles is covered (coated) with at least one additive, in which the additive(s) contains a dispersing agent or deflocculating agent, in which the proportion of the additives is overall at most 80 wt. %, preferably at most 40 wt. % or 30 wt. % and particularly preferably at most 15 wt. % of the coated solids, and wherein the additive(s) is added to the starting solution or solutions. Uses of the inorganic solids produced according to the invention are also described.

Abstract: A sputtering target for fluorescent thin-film formation comprising a matrix material and a luminescent center material, wherein said matrix material has a chemical composition represented by the following formula (1), and simultaneously satisfies conditions represented by the following inequalities (2) to (5). MIIvAxByOzSw ??(1) 0.05?v/x?5 ??(2) 1?y/x?6 ??(3) 0.01?z/(z+w)?0.85 ??(4) 0.6?(v+x+3y/2)/(z+w)?1.5 ??(5) wherein MII represents one or more elements selected from the group consisting of Zn, Cd and Hg, A represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B represents one or more elements selected from the group consisting of Al, Ga and In, and v, x, y, z and w each represent numerical values satisfying the conditions specified in the inequalities (2) to (5).

Abstract: The present invention relates to particles or powders of a compound of formula Zn1?yMyO1?xSx, wherein x has a value in the range from 0.01 to 0.08, M represents a divalent metal and y has a value in the range from 0 to 0.2, the compound having a wurtzite structure.

Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a heptavalent (permanganate), hexavalent (manganate), or pentavalent (manganate) compound. An inorganic or organic material is used with the heptavalent, hexavalent, or pentavalent manganese ion to form a compound that is sparingly soluble in water. Specific solubility control cations are chosen to control the release rate of heptavalent, hexavalent, or pentavalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Solubility control agents may also modify the processing and handling characteristics of the formed powders. Many permanganate or manganate compounds are presented that can equal the performance of conventional hexavalent chromium systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: Inorganic anti-corrosive pigments consist of surface-coated solids having a grain size of 0.1 to 75 &mgr;m. In order to improve the resistance of the paints and coatings containing such pigments, firstly Mn3(PO4)2 and secondly aluminium oxides and/or aluminium hydroxides are precipitated onto the solids.

Abstract: Composite particles and a method of preparing the composite particles are provided. The composite particles contain titanium dioxide particles with adsorbed two-phase polymer particles. The two-phase polymer particles have a soft polymer phase and a hard polymer phase in which the weight ratio of the hard polymer phase to the soft polymer phase is in the range of 10:1 to 1:5. The composite particles containing the two-phase polymer particles have improved aqueous stability and provide coatings with improved scrub resistance.

Abstract: In a protective coating formulation requiring the use of polyamine molecules, oleic acid is used as a very effective additive to remove any excess polyamines. The carboxyl groups of the oleic acid molecules react with the amine groups of the polyamines to form a harmless amide molecule. The oleic acid thus removes excess pollutants from the final coating. In addition, the oleic acid reduces the viscosity of the coating before curing, making it easier to apply to surfaces, and decreases the curing time necessary. However, the addition of oleic acid does not affect the beneficial characteristics of the coating in any way.

Abstract: A corrosion inhibiting composition for application to a metal substrate such as steel, copper or aluminum includes a film forming organic coating composition and an inorganic pigment which displays synergistic corrosion inhibitive properties. The preferred composition of the corrosion inhibitor pigment includes cation selected from Zn, Al, Mg, Ca, Sr, and ion that a combination of ions including cyanamides, phosphates or phosphites, silicates, carbonates and zinc oxide.

Abstract: A foamable thermal insulating barrier coating produced from an aqueous acrylic based latex emulsion and an unencapsulated chemical blowing agent for coating paper and paperboard and especially suitable for coating one or both sides of cupstock to retain heat and to provide moisture and grease resistance.

Abstract: The present invention provides a method for preparing a needle-shaped pigment with a particle size of 0.3.+-.0.1 .mu.m, which has uniform particle distribution, higher thixotropy, an excellent gloss, and good absorption of printing ink, by continuous addition of aluminum sulfate solution and zinc sulfate solution to a milk of lime.

Abstract: A treated inorganic solid comprises particulate inorganic material the particles of which are coated with an alkylphosphonic acid or ester thereof, the alkylphosphonic acid containing 6 to 22 carbon atoms. The particulate material is usually a pigment, extender or filler which is treated by mixing with the alkylphosphonic acid or ester for example in an aqueous dispersion or during a process step such as milling. The treated inorganic solid is particularly useful for preparing polymer compositions such as masterbatches.

Abstract: A color display screen having a coating which comprises at least a greend an/or a red phosphor as well as at least a pigment having the following composition:Ga.sub.a In.sub.b Zn.sub.c Al.sub.d O.sub.n S.sub.m Se.sub.o Te.sub.pwherein0.05<a<1.95 0.0.ltoreq.n<0.30.05<b<1.95 2.1<m.ltoreq.30.00.ltoreq.c<0.09 0.0.ltoreq.o<0.30.00.ltoreq.d<0.2 0.0.ltoreq.p<0.3and n+m+o+p=3 and a+b+2/3c+d=2, yields a high-contrast and low-reflection picture, because the pigmentation in accordance with the invention is self-luminescent and its solid-solution properties enable its absorption properties to be accurately adapted to the emission spectrum of the phosphor. The solid solutions having the composition Ga.sub.a In.sub.b Zn.sub.c Al.sub.d O.sub.n S.sub.m Se.sub.o Te.sub.p are characterized by steep absorption edges in the yellow-orange spectral range and by a high absorptivity. This permits thin pigment-containing layers and small quantities of pigment to be used.

Abstract: Bismuth vanadate pigments IBi.sub.x Fe.sub.y E.sub.v V.sub.(1-w) P.sub.w O.sub.z Iwith the following meanings of the variables:E denotes calcium, zinc, cerium, praseodymium, and/or silicon;x is a value from 0.8 to 1.2;y is greater than 0 to 0.1 when v is greater than 0 or is greater than or equal to 0.035 to 0.1 when v is equal to 0;v is greater than or equal to 0 to 0.2;w is greater than 0 to 0.1;z denotes the number of oxygen atoms required to satisfy the valence requirements of the cations.and the preparation and use of said pigments for dyeing coating compositions, printing inks, and plastics.

Abstract: A pigment preparation for anti-corrosion coating materials, comprising(i) 3-40% by weight of a monomeric or polymeric, metal-free or metal-containing chelate-forming compound, preferably a phthalocyanine,(ii) 3-40% by weight of a material in flake form, preferably mica, and(iii) 25-80% by weight of a hydroxide ion-binding material, preferably a metaphosphate, di- or triphosphate. In a further embodiment, the pigment preparation additionally contains 5-65% by weight of a conductive pigment.

Abstract: Inorganic oxide pigments (ceramics) are prepared by mixing the starting materials in the presence of water and in the presence or absence of assistants, drying and subsequent calcining in a rotary furnace by processing the starting materials in the presence of water into a pumpable suspension having particle sizes of 50%<10 .mu.m and 100%<50 .mu.m, dewatering the suspension by spray drying it to leave porous granules, and calcining those granules>97% from 20 to 800 .mu.m in size.

Abstract: A method for producing decorations which are color-stable in a porcelain firing (glost firing), and a pigment composition suitable for this method, is disclosed. Inclusion pigments based on heavy-metal sulfides and selenides in an oxidic or silicate casing, especially ZrSiO.sub.4, result in more color-stable decorations in a porcelain firing if color-stabilizing auxiliary agents from the series of Zn compounds, especially ZnO or zinc-containing glass frits, or cerium(III) or cerium(IV) compounds, especially CeO.sub.2, are used in the decorative layer and/or glaze layer as color-stabilizing auxiliary agents. The amount used in the decorative layer is generally 5 to 50% by weight in the case of ZnO and CeO.sub.2, relative to the inclusion pigment. The pigment composition contains at least one of the color-stabilizing auxiliary agents in addition to an inclusion pigment.

Abstract: Zinc powder, which contains a coloring element, e.g., Ti, Mn, or V, is heated to a temperature of from 350.degree. to 700.degree. C. so as to oxidize the surface of the powder and hence to develop such colors as brown, navy blue, blue, greenish-brown, green, and coffee brown. The colored zinc powder is sprayed onto a steel, aluminum, or ceramic article to produce a colored article. The colored zinc powder is also used as a pigment.

Abstract: Disclosed are pigment composite particles which are superior in water resistance, weather resistance, thermal stability and hardness. The pigment composite particles are prepared by suspension-polymerizing an aqueous suspension comprising(a) a pigment paste comprising pigment and a pigment grinding resin having a hydrophilic group of at least 0.2 mmol/g,(b) a polymerizable monomer and(c) a polymerization initiator.

Abstract: An improved process for the preparation of bismuth vanadate pigments and solid solutions based on bismuth vanadate by a) mixing a solution of a bismuth (III) salt containing, if required, one or more further metal salts or a mixture thereof with the aqueous solution of a vanadate salt containing, if required, a molybdate, tungstate or sulfate salt or a mixture thereof and b) subjecting the suspension thus obtained to a subsequent aftertreatment to convert the particles first precipitated in amorphous form into crystalline compounds, wherein during the mixing and/or during the subsequent aftertreatment step fluoride ions are used.

Abstract: The pigment is constituted by zinc phosphate dihydrate or tetrahydrate with an excess of from 0.5 to 6% of zinc oxide over the stoichiometric amount and has the form of rough surfaced spheroids having a maximum dimension lying between 0.5 and 6 microns and a mean size lying between 1.5 and 2.5 microns.

Abstract: A new process for the production of pigments suitable for use in paper laminates has been developed in which a metal oxide is treated with a water-soluble salt of zinc and a phosphate or phosphoric acid and subsequently with an alkali metal aluminate in such a manner that there is deposited on the metal oxide a coating containing zinc and phosphate ions together with aluminium ions. The pH of the dispersion following the metal oxide is maintained at a value not exceeding 8.0 during precipitation. A particularly useful pigment is produced which has a coating containing zinc ions in an amount of 0.5 to 5% by weight as ZnO, phosphate ions in an amount of 0.2 to 3% as P.sub.2 O.sub.5 and aluminium ions in an amount of 0.5 to 5% expressed as Al.sub.2 O.sub.3 on the weight of TiO.sub.2.

Abstract: Disclosed is a corrosion preventive pigment consisting essentially of(a) a phosphorus compound which generates phosphate ions in the presence of water and oxygen, selected from the group consisting of a phosphorous pentoxide, an orthophosphoric acid, a condensed phosphoric acid, and alkaline earth metal or transition metal phosphate, or an alkaline earth metal or transition metal condensed phosphate, and(b) a vanadium compound which generates a vanadate ion in the presence of water and oxygen, selected from the group consisting of vanadium (V) oxide, a vanadyl compound, an alkaline earth metal or transition metal vanadate, a baked condensate of alkaline earth metal or transition metal vanadates, or a heterocondensate of alkaline earth metal or transition metal vanadates;and which has a pH value of from 5 to 9.

Abstract: An alumina-silica-sulfate of the formulaxR:Al.sub.2 O.sub.3 :ySiO.sub.2 :zSO.sub.4.pH.sub.2 Owherein R is an alkali or alkaline earth metal oxide, a transition metal capable of forming a sulfate salt or mixtures thereof, x is about 0.001 to 0.5, y is about 0.01 to 3.00, z is about 0.00 to 3.00, and p is about 0 to 100.00, and wherein the sulfate is present as a bound network. Compositions comprising the alumina-silica-sulfate of the invention and a carrier, articles of manufacture comprising the alumina-silica-sulfates of the invention in the form of a catalyst, rubber, plastics, paint and paper, among others. Hollow microspheres are formed by spray drying a gelled composition. Hollow microspheres containing a porous network are formed by calcining the spray-dried hollow microspheres to eliminate the sulfate network.