Abstract: The invention relates to a process for producing supported shell catalysts comprising noble metals by UV photoreduction of noble metal salt precursors fixed to a support. For this purpose, the shaped supported body is impregnated with suitable noble metal salts which are then reduced to the metals in a zone close to the surface by means of UV radiation, preferably in the absence of a chemical reducing agent. The metal salts in the interior of the pellets which have not been irradiated and therefore have not been reduced are extracted using a solvent. The noble metal shell catalysts produced in this way can be used for many heterogeneously catalyzed reactions such as hydrogenations and oxidations. According to the invention, Pd/Au shell catalysts on porous ceramic supports, e.g. SiO2 shaped bodies, produced by this process can be used in the synthesis of vinyl acetate.

Abstract: Sheet-like polyethylene terephthalate materials having slight surface roughness consisting of dendritic, plateau-like structures having a fissured, fractal edge, a process for their preparation by exposing the surfaces to UV radiation produced by the decomposition of excimers, and the use of polyethylene terephthalate films treated in this manner as a substrate for ferromagnetic thin metal layers.

Abstract: Semicrystalline polymers are heat-sealed with metals under pressure and at a temperature between the glass transition temperature and the softening temperature of the polymer by prior exposure of the polymer surface to UV radiation produced by the decomposition of excimers in the wavelength range of from 120 to 400 nm and with an energy density below the ablation threshold.

Abstract: Sheet-like polyethylene terephthalate materials having slight surface roughness consisting of dendritic, plateau-like structures having a fissured, fractal edge, a process for their preparation by exposing the surfaces to UV radiation produced by the decomposition of excimers, and the use of polyethylene terephthalate films treated in this manner as a substrate for ferromagnetic thin metal layers.

Abstract: A method for working an oxide material, and preferably a ceramic oxide material, with a laser emission of an excimer laser and without the creation of damage layers includes pulsing the laser emission to be impinged on the material to be worked.

Abstract: An improvement of a method for structured LCVD deposition onto, in particular, non-homogenous material of a substrate member, wherein a metal film of, in particular, tungsten that has a leveling effect with respect to reflectivity and/or lateral heat propagation is provided on a substrate surface before the deposition.

Abstract: Thin-film capacitors are produced with laser chemical vapor deposition technology on a substrate, which is preferably the substrate of an integrated circuit, by forming alternating layers of electrodes and dielectric.

Abstract: The etching of dielectric oxide ceramics and dielectric single crystal oxides, particularly perovskite ceramics, is executed by means of laser radiation in an atmosphere having a reducing effect.

Abstract: A method for generating an area of increased conductivity on the surface of a body of dielectric material, such as for the purpose of attaching electrodes or other electrical interconnections to the area includes the steps of enclosing the surface within a reducing atmosphere and irradiating the portion of the surface corresponding to the desired conductive area with laser radiation for a selected period of time. The atmosphere may be a hydrogen atmosphere at a pressure in the range of 0-1000 HPa. Additionally, the surface may be preheated prior to irradiation.