Abstract: The present invention provides a system of N?3 interference pigments, which is distinguished in that it exhibits a maximum colour gamut through specification of the optimum pigment hue angle hu, vi (i=1 to N) in the CIELUV system.

Abstract: The invention relates to substrates with a surface modified by dyes, characterised in being enveloped in one or several layers of immobilised LCST and/or UCST polymers. The invention further relates to a method for the production of the surface-modified substrates and the use thereof in paints, water paints, dyes, printing dyes, security printing dyes, plastics, concrete, in cosmetic formulations, in agricultural films and tarpaulins, for the laser marking of paper and plastics, for laser welding, as light protective, as pigment for corrosion protection and in the production of pigment preparations and dry preparations.

Abstract: The present invention relates to particles having a functional multilayered structure based on substrates, characterised in that the substrates are coated with one or more layers of one or more polymers and one or more layers of one or more silanes, process for the production thereof, and the use thereof

Abstract: The present invention relates to UV-stabilised particles which are distinguished by the fact that they reflect or absorb light having wavelengths of from 290 to 500 nm. The invention furthermore relates to a process for the production of the particles according to the invention and to the use thereof in surface coatings, water-borne coatings, powder coatings, paints, printing inks, security printing inks, plastics, concrete, in cosmetic formulations, in agricultural sheeting and tent awnings, for the laser marking of papers and plastics, as light protection, and for the preparation of pigment compositions and dry preparations.

Abstract: The invention relates to the use of light-colored or transparent particulate semiconductor materials or particulate substrates that are coated with said semiconductor materials as a hardening and/or drying additive and/or for increasing the thermal conductivity of lacquer systems and printing colors.

Abstract: The present invention relates to surface-modified effect pigments based on flake-form substrates which are distinguished by the fact that they are sheathed with one or more layers of immobilised LCST and/or UCST polymers. The invention furthermore relates to a process for the production of the surface-modified effect pigments and to the use thereof in surface coatings, water-borne coatings, powder coatings, paints, printing inks, security printing inks, plastics, concrete, in cosmetic formulations, in agricultural sheeting and tarpaulins, for the laser marking of papers and plastics, as light protection, as pigment for corrosion protection and for the preparation of pigment compositions and dry preparations.

Abstract: Ceramic decoration coloring substances substantially containing a zirconium pigment of the host lattice or inclusion type and a glass flux at a pigment volume concentration (PVC) of at least 30% have an increased color saturation C* if the glass flux comprises at least 71 wt. % PbO. Preferred decoration coloring substances have a PVC in the range from 40 to 70% and a PbO content of 75 to 85 wt. %. The decoration coloring substances are especially suitable for production of decorations, burned at 1000 to 1250°C, with increased color saturation C*.

Abstract: The resistance of tableware decorations to cutlery scratches can be improved by using a decoration coloring substance whose coloring component is a molecular sieve charged with a metal selected from V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Au, Ru, Rh, Pd, Os, Ir, Pt and/or an ion or a compound of the metal. The coloring component is preferably an aluminosilicate or silicalite charged with Au, Pt, Pd or Cu.

Abstract: The resistance of tableware decorations to cutlery abrasion traces can be increased by using, in the production of the decoration, a decoration coloring substance containing a pigment and a glass flux with the characteristics profile according to the invention: the pigment of the decoration coloring substance has an average grain diameter equal to or less than 2 .mu.m, and the glass flux of the decoration coloring substance has a density equal to or less than 2.6 g/cm.sup.3 and a hemisphere temperature less than 930.degree. C.

Abstract: The invention relates to a ceramic color paste, in particular a color paste containing alkyd resins, for the production of decorations on surfaces of glass, porcelain or ceramic, and a printing medium for the preparation of the color paste.Known generic color pastes and printing media for producing the same generally have an intense odor and tend to form a skin if an alkyd resin is present.The invention overcomes these disadvantages by the solvent system of the printing medium of the color paste containing substantially at least 50 to 100% by weight, preferably above 70% by weight, of one or more isoparaffins and from 0 to 50% by weight, preferably from 0 to 30% by weight, of one or more solvating plasticisers. Skin formation is prevented by the presence of an aldoxime or ketoxime containing 3 to 6 carbon atoms or an anti-oxidant for polymer systems.

Abstract: The invention relates to an improved color paste for the manufacture of internally printed, curved laminated glass panes.Prior art color pastes cause problems with respect to adhesion and optical accuracy or require a higher technical complexity during the baking process for producing internally printed laminated glass panes.Color pastes which constitute the invention and overcome the previous drawbacks are characterized by a print medium which contains 5,6,8-trihydroxy-1,4-naphthoquinone in addition to solvents.

Abstract: The invention relates to an improved color paste for the manufacture of internally printed, curved laminated glass panes.Prior art color pastes cause problems with respect to adhesion and optical accuracy or require a higher technical complexity during the baking process for producing internally printed laminated glass panes.Color pastes which constitute the invention and overcome the previous drawbacks are characterized by a print medium which contains 5,6,8-trihydroxy-1,4-naphthoquinone in addition to solvents.

Abstract: An improvement in a method for the reprocessing, by oxidation, of condensate obtained in urea production plants and having a urea content of approximately 50 mg/l and a biuret content of approximately 2 mg/l, is disclosed. The improvement comprises performing the oxidation at elevated temperatures and at alkaline pH values; preferably, the oxidation is performed at a temperature greater than 60.degree. C. and a pH value greater than 8.

Abstract: Process for producing fully desalted process water by the treatment of raw water with cation and anion exchangers in a separate multi-stage arrangement. The water which leaves the main cation exchanger stage or stages, has a residual sodium content of less than 0.5 mg Na/l before entering the anion exchange stage. Such water is fed through a strong acid cation exchanger stage, in which the exchanger material is present at a maximum of 50 percent as a suspended bed and the remainder as a solid bed. The exchanger material in the strong acid cation exchanger stage following the first strong acid cation exchanger stage, is present at a maximum of 25 percent as a suspended bed and the remainder as a solid bed.