Abstract: A tinting system for producing a defined number of shades of a paint ready for use characterized by: (a) a dye set, (b) a color identification means, and (c) plurality of metering means for accommodating a shade component, and a brightening component. Each metering means being designed to manually meter the respective dye component and to exactly reproduce the number of shades defined by the color identification means.

Abstract: Description of a method for the production of a pigmented thermoplastic material. The method characterizes that during a first step an aqueous suspension presenting a solid matter contents of approximately 10 to 75% by weight, containing at least one flow enhancer in form of dissolved salt and the pigment, is ground under alkaline conditions in a high energy charging mill by means of grinding bodies having a diameter of 0.2 to 2 mm, and the obtained grinding product is transformed during a second step with a thermoplastic material into the pigmented thermoplastic material by means of a flush process performed by a kneader or extruder, at increased temperature and a pH value of initially 7 or less. In addition, the invention concerns a pigmented thermoplastic material produced according to said method, as well as beneficial applications for production of transparent molded bodies, in particular of fibers, foils, injection moldings and extruded parts.

Abstract: The invention covers a fine-particle, brilliant and strongly hiding rutile-based pigment that is devoid of any metal or reactive metal compounds relevant to mill abrasion detectable by application technology but whose particle-size in terms of particle diameters ranges from 50 to 1000 nm, for mono-, bi-, tri- or oligo-modal size distribution and a primary maximum ranges from 230 to 400 nm, wherein optionally for a bi- or poly-modal frequency distribution, a secondary maximum is less than 25% of the primary maximum between 400 and 1000 nm. The process for producing said pigment comprises treating an inorganic mixed-phase rutile structured oxide pigment by high-speed grinding in suspension in a ball grinding mill provided with a mechanically and chemically resistant coating until said particle-size and a substantially isometric rounded particle shape are attained. The invention optionally provides for viscosity adjustment and surface conditioning of the pigment.

Abstract: The invention relates to a pigment preparation based on at least one inorganic pigment and at least one organic pigment, and to a method for producing one such pigment preparation. Said pigment preparation contains particles wherein fine organic pigment particles are combined with inorganic pigment particles, said particles also being provided with an organic macromolecular coating. The inventive pigment preparation is produced by wet-grinding the inorganic and organic pigments, optionally adding other constituents, in the presence of a surface-active substance in the form of a macromolecular organic compound.

Abstract: The invention relates to a method for producing an aqueous suspension of pure-phase ?-copper phtalocyanine blue pigment using an agitator ball mill. According to said method: a) in a preparatory step, a phthalocyanine crude blue is suspended by means of a dissolver in an aqueous medium, said aqueous medium containing in particular lipophilic substances, which are similar to binding agents and are compatible with the final application medium and crystalline-phase controlling and/or pigment-surface conditioning compounds; b) said aqueous suspension of the phthalocyanine crude blue is ground in an agitator ball mill to form a suspension of a ?-phtalocyanine blue pigment. The aqueous suspension thus obtained is characterized in that it contains a high-grade ?-phtalocyanine blue pigment for producing a conditioned ?-phtalocyanine blue pigment. The advantage is that said suspension can also be directly converted into a colour concentrate, in particular by means of a flushing and kneading method.

Abstract: The invention covers a fine-particle, brilliant and strongly hiding rutile-based pigment that is devoid of any metal or reactive metal compounds relevant to mill abrasion detectable by application technology but whose particle-size in terms of particle diameters ranges from 50 to 1000 nm, for mono-, bi-, tri- or oligo-modal size distribution and a primary maximum ranges from 230 to 400 nm, wherein optionally for a bi- or poly-modal frequency distribution, a secondary maximum is less than 25% of the primary maximum between 400 and 1000 nm. The process for producing said pigment comprises treating an inorganic mixed-phase rutile structured oxide pigment by high-speed grinding in suspension in a ball grinding mill provided with a mechanically and chemically resistant coating until said particle-size and a substantially isometric rounded particle shape are attained. The invention optionally provides for viscosity adjustment and surface conditioning of the pigment.

Abstract: The invention relates to a method for producing an aqueous suspension of pure-phase ?-copper phthalocyanine blue pigment using an agitator ball mill. According to said method: a) in a preparatory step, a phthalocyanine crude blue is suspended by means of a dissolver in an aqueous medium, said aqueous medium containing in particular lipophilic substances, which are similar to binding agents and are compatible with the final application medium and crystalline-phase controlling and/or pigment-surface conditioning compounds; b) said aqueous suspension of the phthalocyanine crude blue is ground in an agitator ball mill to form a suspension of a ?-phthalocyanine blue pigment. The aqueous suspension thus obtained is characterised in that contains a high-grade ?-phthalocyanine blue pigment for producing a conditioned ?-phthalocyanine blue pigment. The advantage is that said suspension can also be directly converted into a colour concentrate, in particular by means of a flushing and kneading method.

Abstract: The invention relates to a fine-particle, bright and high-coating rutile-based pigment that is devoid of any metal or reactive metal compounds relevant to mill abrasion detectable by application technology but whose grain-size in terms of particle diameters ranges from 50 to 1000 ?m, for mono-, bi-, tri- or oliho-modal size distribution and a primary maximum ranges from 230 to 400 ?m, wherein optionally for a bi- or poly-modal frequency distribution, a secondary maximum is less than 25% of the primary maximum between 400 and 1000 ?m. The method for producing said pigment consists in treating an organic mixed-phase rutile structured oxide pigment by high-speed grinding in suspension in a ball grinding mill provided with a mechanically and chemically resistant coating until said grain-size and a substantially isometric rounded particle shape are attained. According to the invention, means for viscosity adjustment and surface conditioning of the pigment are also provided.

Abstract: Description of a method for the production of a pigmented thermoplastic material. The method characterizes that during a first step an aqueous suspension presenting a solid matter contents of approximately 10 to 75% by weight, containing at least one flow enhancer in form of dissolved salt and the pigment, is ground under alkaline conditions in a high energy charging mill by means of grinding bodies having a diameter of 0.2 to 2 mm, and the obtained grinding product is transformed during a second step with a thermoplastic material into the pigmented thermoplastic material by means of a flush process performed by a kneader or extruder, at increased temperature and a pH value of initially 7 or less. In addition, the invention concerns a pigmented thermoplastic material produced according to said method, as well as beneficial applications for production of transparent molded bodies, in particular of fibers, foils, injection moldings and extruded parts.

Abstract: The invention relates to a pigment preparation based on at least one inorganic pigment and at least one organic pigment, and to a method for producing one such pigment preparation. Said pigment preparation contains particles wherein fine organic pigment particles are combined with inorganic pigment particles, said particles also being provided with an organic macromolecular coating. The inventive pigment preparation is produced by wet-grinding the inorganic and organic pigments, optionally adding other constituents, in the presence of a surface-active substance in the form of a macromolecular organic compound.

Abstract: Described is a method for the manufacture of a pastel-white, highly opaque, micro-particle rutile pigment from a crude rutile, synrutile or from a slag-like rutile-type precursor characteristic for traditional titanium dioxide production from processing ilmenite into titanium dioxide. This method distinguishes itself in that the starter material in form of the crude rutile, synrutile or the slag-like rutile-type precursor is ground down in several stages in high efficiency mills without leaving any significant metallic fines, to a particle size of approximately 200 to 600 nm, whereby initially a dry pre-grinding step is performed and thereafter with high recorded grinding output a wet grinding step is performed in a final grinding phase. The ground-down product is dried and the obtained rutile pigment is calcinated in finely distributed form at temperatures between 790 and 1050° C.

Abstract: A method and an apparatus for the production of industrial lead oxide involving mixing molten lead and air in a reactor. A particularly advantageous, having a desired particle size can be obtained with a PbO content of considerably more than 99%. The lead flow is introduced at a constant and even rate and the air flow is altered very slightly in order to maintain the pre-determined reaction temperature having fluctuations of a maximum of .+-.5.degree. C.The constant and steady infeed of the lead flow is achieved by using an apparatus according to the invention. The apparatus, which is situated above the reactor, includes a supply vessel charged with molten lead from a melt container, the supply vessel having an exchangeable nozzle which is provided with a control-operated cleaning pin. The nozzle extends into a reaction space and the supply vessel is connected to the melt container via a feed line and an overflow.

Abstract: In a process and a device for manufacturing partially oxidized lead dust from lead pieces, the natural pile of dissociated coarse and fine material formed in a rotating drum is mechanically disturbed by radially extending guide plates in the interior of a drum which plates are arranged in pairs and displaced toward each other by 180.degree. in the direction of the circumference of the drum and the individual plates of each pair of plates are spaced axially apart, by which arrangement the efficiency of the process and the product quality are greatly improved.