Abstract: The invention relates to a composition for printing electrodes on a substrate, comprising 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0.1 to 5% by weight of at least one absorbent for laser radiation, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 3 to 50% by weight of water as a solvent, 0 to 65% by weight of at least one retention aid and 0 to 5% by weight of at least one additive, based in each case on the total mass of the composition. The invention further relates to a use of the composition.

Abstract: The invention relates to a process for producing structured or full-area, electrically conductive surfaces on a substrate (1), comprising the following steps: (a) transferring electrolessly and/or electrolytically coatable particles or a dispersion (3) comprising electrolessly and/or electrolytically coatable particles from a transfer medium (5) onto the substrate (1), (b) fixing the electrolessly and/or electrolytically coatable particles on the substrate (1), wherein the transfer in step (a) is promoted by virtue of the particles being magnetic or magnetizable or, in the case of transfer or a dispersion, magnetic or magnetizable particles being present in the dispersion, and a magnetic field (9) is applied.

Abstract: In a method for producing form bodies for heat exchangers, comprising a thermomagnetic material, said form bodies having channels for passage of a fluid heat exchange medium, a powder of the thermomagnetic material is introduced into a binder, the resulting molding material is applied to a carrier by printing methods, and the binder and if appropriate a carrier are removed subsequently and the resulting green body is sintered.

Abstract: The invention relates to a method for printing a substrate (7), in which ink is transferred from an ink carrier (3) to the substrate (7) in accordance with a predefined pattern by energy being introduced into the ink through the ink carrier (3) by a device for the introduction of energy (11), the ink carrier (3) and the substrate (7) not coming into contact. The substrate (7) is introduced into an electric field, so that a homogeneous charge field is produced on the surface of the substrate (7). The invention further relates to a printing machine, comprising an ink carrier (3) which can be coated with an ink to be printed, and a device (11) for the introduction of energy into the ink, the device (11) for the introduction of energy being arranged in such a way that the energy can be introduced into a printing area (9) on the side of the ink carrier (3) facing away from the ink, so that the ink is transferred from the ink carrier (3) to a substrate (7) to be printed in an area of action of the energy.

Abstract: The invention relates to a method for printing a substrate (7) in a printing machine, in which ink is transferred from a flexible carrier (3) to the substrate (7) in accordance with a predefined pattern by energy being introduced into the ink through the flexible carrier (3) by a device for the introduction of energy, some of the ink evaporating in the area of action of the energy and, as a result, a drop of ink (67) being thrown onto the substrate (7) to be printed, this step being repeated at least once, ink being transferred at least partly to the substrate (7) at the same positions in order to intensify the pattern produced. The substrate is transported through the printing machine (1) during the printing and, after the transfer of ink in step (a), the device for the introduction of energy is controlled in such a way that, during the repetition in step (b), the ink is transferred at the same position again as in step (a). The invention further relates to a printing machine for implementing the method.

Abstract: The invention relates to a printing machine, comprising a flexible carrier (3) which is coated with an ink to be printed, and to a device for the introduction of energy (11) into the ink, the device for the introduction of energy (11) being arranged in such a way that the energy can be introduced in a printing area (9) on the side facing away from the ink, so that ink is transferred from the carrier (3) to a substrate (7) to be printed. In the printing area there is arranged a tensioning device (13), with which the flexible carrier (3) is tensioned in the area in which the energy is introduced, in order to obtain a smooth surface.

Abstract: The invention relates to a composition for producing magnetic or magnetizable moldings, comprising from 95.5 to 98.95% by weight of a powder made of a magnetic or magnetizable material, from 1.0 to 4% by weight of a mixture made of at least one epoxy-novolak resin, and also of at least one hardener, and comprising from 0.05 to 0.5% by weight of at least one additive, based in each case on the total weight of the composition. The mixture made of the at least one epoxy-novolak resin and of the at least one hardener comprises from 85 to 95% by weight of the epoxy-novolak resin and from 5 to 15% by weight of hardener. The hardener has been selected from (cyclo)aliphatic amines and their adducts, polyamides, Mannich bases, amidoamines, phenolic resins, imidazoles, and imidazole derivatives, dicyandiamide, and BF3-monoethanolamine. The invention further relates to a process for producing the composition, and also to a process for producing a molding made of the composition.

Abstract: In a method for printing substrates with a printing ink and/or a printing varnish at least comprising solvents and binders, at least one of the binders comprises a polyetheramine polyol.

Abstract: The invention relates to a process for producing electrodes for solar cells, the electrode being configured as an electrically conductive layer on a substrate (1) for solar cells, in which, in a first step, a dispersion comprising electrically conductive particles is transferred from a carrier (7) to the substrate (1) by irradiating the dispersion with a laser (9) and, in a second step, the dispersion transferred to the substrate (1) is dried and/or hardened to form the electrically conductive layer.

Abstract: Multilayered articles comprise (E) optionally at least one decor layer, (F) at least one substrate comprising cellulose fibers, (G) at least one metal-containing layer prepared by a process comprising the steps of (c) printing covering layer (D) with a printing formulation comprising at least one metal powder, (d) providing with at least one item generating or consuming electric current, (e) depositing at least one further metal, (H) optionally at least one covering layer.

Abstract: Liquid printing inks for flexographic and/or gravure printing comprise solvents, colorants, if required additives, and, as a binder, at least one hyperbranched polymer having functional groups. Printing lacquers for priming unprinted print media or overcoating printed print media comprise solvents, if required additives, and, as a binder, at least one hyperbranched polymer having functional groups. Such hyperbranched polymers are used for the preparation of printing inks and of printing lacquers.

Abstract: The present invention relates to a dispersion for the application of a metal layer on a non-electrically-conductive substrate comprising an organic binder component, a metal component, and also a solvent component. The invention further relates to processes for the production of the dispersion, processes for the production of a non-structured or structured metal layer with the aid of the dispersion, and also to the resultant substrate surfaces and their use.

Abstract: Processes for producing a metalized textile surface for one or more articles needing or generating electric current. The process comprises (A) applying a formulation comprising at least one metal powder (a) as a component to a textile surface in a patterned or uniform manner; (B) fixing the one or more articles needing or generating electric current in at least two locations of the textile surface where the formulation was applied in step (A); and (C) depositing a further metal on the textile surface. The formulation may comprise a metal powder, a binder, an emulsifier and, if appropriate, a rheology modifier.

Abstract: A method of revealing exposure of a substrate to an environmental stimulus includes exposing the substrate to the environmental stimulus, where the substrate includes at least one indicia, where each of the at least one indicia includes a plurality of chromatically selective scattering particles having a particle size distribution as measured by (weight average diameter)/(number average diameter) of less than or equal to about 1.1, and a colorant; and the at least one indicia exhibits a change in color in response to the environmental stimulus.

Abstract: The use of high-functionality highly branched polyetheramine polyols to coat substrates such as metal surfaces or components made of plastic permits improved adhesion of further coatings.

Abstract: The invention relates to a method for producing metal-coated base laminates having a support (51) made of an electrically nonconductive material (37), which is coated on at least one side with a metal layer (25, 53). In a first step, a base layer (11) is applied onto a substrate (3) with a dispersion (5), which contains electrolessly and/or electrolytically coatable particles in a matrix material. The matrix material is at least partially cured and/or dried. A metal layer is subsequently formed on the base layer (11) by electroless and/or electrolytic coating. The support (51) made of the electrically nonconductive material (37) is laminated onto the metal layer (25). The support (51) laminated with the metal layer (25) and at least a part of the base layer (11) are subsequently removed from the substrate (3).

Abstract: The invention relates to a method for producing polymer-coated metal foils, comprising the following steps: (a) applying a base layer (7) onto a support foil (3), with a dispersion (5) which comprises electrolessly and/or electrolytically coatable particles in a matrix material, (b) at least partially drying and/or at least partially curing the matrix material, (c) forming a metal layer (19) on the base layer (7) by electroless and/or electrolytic coating of the base layer (7) comprising the electrolessly or electrolytically coatable particles, (d) applying a polymer (23) to the metal layer (19). Furthermore, the invention relates to a use of the polymer-coated metal foil for the production of printed circuit boards.

Abstract: The invention relates to a method for producing electrically conductive surfaces on a nonconductive substrate, comprising the following steps: a) transferring a dispersion containing electrolessly and/or electrolytically coatable particles from a support onto the substrate by irradiating the support with a laser, b) at least partially drying and/or curing the dispersion transferred onto the substrate, so as to form a base layer, c) electrolessly and/or electrolytically coating the base layer.

Abstract: Method for producing structured electrically conductive surfaces on a substrate, which comprises the following steps: a) structuring a base layer containing electrolessly and/or electrolytically coatable particles on the substrate by ablating the base layer according to a predetermined structure with a laser, b) activating the surface of the electrolessly and/or electrolytically coatable particles and c) applying an electrically conductive coating onto the structured base layer.

Abstract: The present invention relates to processes for application of a metal layer on a substrate via deposition of a metal from a metal salt solution by a chemical and/or electroplating method, a significant factor in these processes being that carbon nanotubes are present in the substrate surface. The present invention moreover relates to the use of carbon nanotubes for application of a metal layer on a substrate.