Abstract: In a method of manufacturing TSSS and TISS coatings applied onto substrates of copper or aluminum, inorganic pigments are functionalized by aminosilane. The functionalized pibment are used for making paints, which after the coil-coating onto the substrate form the coatings. For the functionalization, the pigment is dispersed in a solution of an aminosilane in a solvent or a mixture of a solvent and a binder without an addition of a non-aminosilane dispersing agent with or without subsequent grinding and use of 0.05-30% of aminosilane on pigment. An aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound or a mixture thereof can be used as the solvent. A silicone-polyester, polyurethane or fluoropolymer can be used as the binder.

Abstract: The invention relates to TSSS and TISS coatings applied by coil-coating onto substrates of copper or aluminum. Inorganic pigments functionalized by aminosilane are used for making paints, which after the coil-coating onto the substrate form the coatings. For the functionalization the pigment is dispersed in a solution of an aminosilane in a solvent or a mixture of a solvent and a binder without an addition of a non-aminosilane dispersing agent with or without subsequent grinding and use of 0.05-30% of aminosilane on pigment. An aromatic, aliphatic, cycloaliphatic, ketone, ester, ether or alcohol compound or a mixture thereof can be used as the solvent. A silicone-polyester, polyurethane or fluoropolymer can be used as the binder.

Abstract: The invention relates to a method for the laser welding of a composite material (V) to a component (11) in particular for the production of a solar collector element (E), wherein the composite material (V) comprises a strip-shaped substrate (1) composed of a metal having high reflectivity to laser radiation, said substrate having a first side (A) and a second side (B), wherein a dielectric coating (7) is situated at least on the first side (A), and wherein, in order to produce a weld seam, a laser beam (L) is projected at an acute orientation angle (?) at least onto the first side (A) of the substrate (1) provided with the dielectric coating (7).

Abstract: A composite material having an aluminum substrate, an intermediate layer located on one side of the substrate, and an optically active multilayer system applied to the intermediate layer. The multilayer system includes three layers. The two upper layers are dielectric and/or oxide layers and the bottom layer is a metallic layer applied to the intermediate layer. In order to controllably and selectively set the absorptivity and reflectivity in various wavelength regions, the intention also being to ensure good processability, in particular deformability, a high thermal conductivity and high long-term thermal and chemical stability of the material, the top layer is a dielectric layer, preferably an oxide, fluoride or nitride layer of chemical composition MeOz, MeFr, MeNs, with a refractive index n<1.8. The middle layer is a chromium oxide layer of chemical composition CrOx. The bottom layer of gold, silver, copper, chromium, aluminum and/or molybdenum.

Abstract: The present invention relates to a composite material, in particular for reflectors, having a metallic support (1) in strip form, an intermediate layer and having a multilayer optical system (3) which is applied to the intermediate layer (2). A non-metallic protective layer (4), which consists of a low-absorption material and has a thickness (D4) of from 5 to 20 nm, preferably from 5 to 10 nm, is applied to the multilayer optical system (3).