Abstract: The invention relates to a thermosensitive adhesive composition comprising: a) a first monomer chosen from the group of alkyl acrylates and alkyl methacrylates containing in the alkyl group 4 to 10 carbon atoms; b) a second monomer chosen from the group of alkyl acrylates or methacrylates containing in the alkyl group 1 to 3 carbon atoms, acrylamides, methacrylamides and other unsaturated monomers; and c) 1 to 15 mole % of acrylic acid, methacrylic acid and/or hydroxyethyl methacrylic acid, which copolymer has a glass transition temperature between 45 and 70° C.

Abstract: A low-pressure mercury vapor discharge lamp is provided with a discharge vessel (10). The discharge vessel comprises tubular end portions (11; 11′), which each have a longitudinal axis (12; 12′). The discharge vessel (10) encloses a discharge space (18) containing a filling of mercury and an inert gas in a gastight manner. Electrodes (20; 20′) are arranged in the discharge space (18). An auxiliary amalgam is provided on a carrier (25; 25′) in the proximity of the electrodes (20; 20′). According to the invention, a part of the carrier (25; 25′) is arranged in a plane transverse to the longitudinal axis (12; 12′). Preferably, a stem (21; 21′) in the tubular end portion (11; 11′) carries, apart from the electrode (20; 20′), a support in the form of a wire (23; 23′) or an extended exhaust tube, which support carries the carrier (25; 25′). In an alternative embodiment, the carrier is clamped directly onto the stem.

Abstract: The invention relates to a thermosensitive adhesive composition comprising: a) a first monomer chosen from the group of alkyl acrylates and alkyl methacrylates containing in the alkyl group 4 to 10 carbon atoms; b) a second monomer chosen from the group of alkyl acrylates or methacrylates containing in the alkyl group 1 to 3 carbon atoms, acrylamides, methacrylamides and other unsaturated monomers; and c) 1 to 15 mole % of acrylic acid, methacrylic acid and/or hydroxyethyl methacrylic acid, which copolymer has a glass transition temperature between 45 and 70° C.

Abstract: In an operating lamp device comprising a light source a guiding apparatus for the light source is provided which has a stationary position relative to the operating table or treatment chair for directing a light beam towards a certain treatment area and keeping it there. The guiding apparatus offers the light source a spherical cap-shaped area of movement of which the center of curvature coincides with the respective treatment area of a patient. The guiding apparatus might be attached to a movable back support or neck support, but might also be attached to a carrier not mechanically coupled to the operating table or treatment chair. In the latter case control signals generate a motion of the carrier in correspondence with a motion of the operating table or treatment chair.