Abstract:
The invention relates to a method for forming (finishing) an organic pigment, the pigment being dissolved or dispersed in a mineral acid, and the pigment being allowed to crystallize out of the solution or dispersion by mixing with an aqueous diluting agent in the absence of an arylsulfonic acid condensation product having sulfonate groups and an aliphatic aldehyde as a crystallization inhibitor, characterized in that the crystallized organic pigment is allowed to mature in the presence of a surfactant or in the presence of an additive increasing the solubility of the pigment in an aqueous suspension.
Abstract:
The invention relates to a method for finishing an organic pigment, the pigment being dissolved or dispersed in mineral acid, and from the solution or dispersion the pigment being crystallizable by mixing it with an aqueous diluent in the presence of a condensation product of naphthalene sulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms as a crystallization modifier, the product containing sulfonate groups, and subsequently the pigment being isolated as solid matter, characterized in that the crystallization modifier is present in the aqueous diluent.
Abstract:
The invention relates to a passivating layer on a metal surface, which can be obtained by bring the metal surface into contact with a composition consisting of a water-soluble, nitrogen-containing polymer; a surface whose structure consists of a metal surface and the inventive passivating layer; a method for forming a passivating layer on a metal surface; the use of a composition consisting of a water-soluble, nitrogen-containing polymer, for passivating a metal surface; and a structure on a metal surface, comprising an inventive passivating layer and other coats of lacquer.
Abstract:
Verfahren zur Formierung (Finishing) eines organischen Pigments, bei dem man das Pigment in einer Mineralsäure löst oder dispergiert und aus der Lösung oder Dispersion das Pigment durch Vermischen mit einem wässrigen Verdünnungsmittel in Abwesenheit eines Sulfonatgruppen aufweisenden Kondensationsproduktes aus einer Arylsulfonsäure und einem aliphatischen Aldehyd als Kristallisationsinhibitor kristallisieren lässt, dadurch gekennzeichnet, dass man das kristallisierte organische Pigment in Gegenwart eines Tensids oder in Gegenwart eines die Löslichkeit des Pigments erhöhenden Zusatzes in wässriger Suspension reifen lässt.
Abstract:
The invention relates to the use of copolymers in washing, shower, and bath preparations. Said copolymers are obtained by copolymerizing at least one ethylenically unsaturated dicarboxylic acid anhydride that is derived from at least one dicarboxylic acid with 4 to 8 C atoms and at least one oligomer of branched or straight C 3 -C 10 alkene, at least one oligomer being provided with a mean molecular weight M n ranging from 300 to 5000 g/mol, preferably up to 1200 g/mol, or being obtained by oligomerizing at least three equivalent C 3 -C 10 alkene.
Abstract:
The invention relates to a method for forming an organic pigment, the pigment being dry pulverized in the presence of an arylsulfonic acid condensation product having sulfonate groups and at least one aliphatic aldehyde having 1 to 6 C atoms as a crystallization modifier, the mixture of the pigment and crystallization modifier thus obtained being dispersed in mineral acid, and the pigment being allowed to swell in the presence of the crystallization modifier in mineral acid.
Abstract:
Disclosed is the use of highly functional, highly branched or hyperbranched polycarbonates as a dispersing agent for pigments. Said polycarbonates can be obtained by a) producing one or several different condensation products (K) by a1) reacting at least one organic carbonate (A) of general formula RO[(CO)O] n R with at least one aliphatic, aliphatic/aromatic, or aromatic alcohol (B) comprising at least 3 OH groups while eliminating alcohols ROH, R independently representing a linear or branched aliphatic, aromatic/aliphatic, or aromatic hydrocarbon radical containing 1 to 20 C atoms, and radicals R being optionally interconnected so as to form a ring containing the grouping -O[(CO)O] n -, and n representing an integer ranging from 1 to 5, or a2) reacting phosgene, diphosgene, or triphosgene with the aliphatic, aliphatic/aromatic, or aromatic alcohol (B) while releasing hydrogen chloride, the quantitative ratio between alcohols (B) and the carbonates (A) or the phosgenes in the reaction mixture being selected such that the condensation products (K) on average are provided with one carbonate group or carbamyl chloride group and more than one OH group or one OH group and more than one carbonate group or carbamyl chloride group, and b) intermolecularly reacting the condensation products (K) obtained in step a).
Abstract:
Disclosed are solid pigment preparations containing (A) 60 to 95 per weight of at least one pigment, (B) 5 to 40 percent by weight of at least one water-soluble anionic surface-active additive from the group of the homopolymers and copolymers of ethylenically unsaturated monocarboxylic acids and/or ethylenically unsaturated dicarboxylic acids which can additionally contain monopolymerized vinyl monomers having no acid function, the alkoxylation products of said homopolymers and copolymers, and the salts of said homopolymers and copolymers and the alkoxylation products thereof, and (C) 0 to 20 percent by weight of at least one nonionic surface-active polyether-based additive as essential components. Also disclosed are a method for the production thereof and methods for dyeing macromolecular organic and inorganic materials.
Abstract:
Verfahren zur Formierung eines organischen Pigments, bei dem man das Pigment in Gegenwart eines Sulfonatgruppen aufweisenden Kondensationsproduktes aus einer Arylsulfonsäure und mindestens einem aliphatischen Aldehyd mit 1 bis 6 C-Atomen als Kristallisationsmodifikator trocken zerkleinert, das erhaltene Gemisch aus Pigment und Kristallisationsmodifikator in Mineralsäure dispergiert und das Pigment in Gegenwart des Kristallisationsmodifikators in Mineralsäure quellen lässt.
Abstract:
The invention relates to a method for the formation of an organic pigment, wherein the pigment is dissolved or dispersed in an aqueous solvent or a mineral acid and is allowed to crystallize from the solution or dispersion in the presence of a crystallization modifier and is subsequently isolated as a solid, wherein the crystallization modifier is a condensation product of at least one hydroxyaryl sulfonic acid having sulfonate groups and/or at least one hydroxydiaryl sulfone compound and at least one aliphatic aldehyde with 1-6 carbon atoms, optionally containing urea and possibly an alkali sulfite, or a mixture of such condensation products.