Abstract: The invention relates to a crosslinkable polymer composition (1), comprising a crosslinkable polymer material (2), particularly a polyolefin, preferably a polyethylene, additives (3), a first initiator (4) and a second initiator (5), wherein said first initiator (4) and second initiator (5) are different.

Abstract: A lighting unit in the form of laminated layers including a first layer (A), and a second layer (B). At least one of the layers (A) or (B) is optically transparent and the layers (A) and (B) are arranged parallel to each other. At least one functional interlayer (C) is arranged between the layers (A) and (B) and arranged parallel to the layers (A) and (B). The lighting unit includes at least one light source. Preparation of the lighting unit is disclosed. The lighting unit is suitable for use in buildings, furniture, cars, trains, planes and ships as well as in facades, skylights, glass, roofs, stair treads, glass bridges, canopies and railings.

Abstract: A method for producing a multilayered pipe line, in particular for transporting refrigerant in an air-conditioning system. First, an endless inner layer made of stainless steel having a layer thickness of at most 1 mm, preferably at most 0.5 mm, is provided, which constitutes the inside layer of the pipe line. Then, the endless inner layer is covered, by means of an extrusion process, with a plastic layer that preferably has a layer thickness of at most 7 mm, in particular at most 5 mm.

Abstract: The reservoir according to the invention for receiving a fluid, in particular under a pressure that is elevated relative to the surroundings, comprises a hollow body that is delimited by a wall having a multi-layered structure, and a device for feeding the fluid to and carrying the fluid away from the hollow body, and is characterized in that the inner layer of the wall contains cross-linked polyethylene.

Abstract: The invention relates to a molded part for accommodating, conducting, or storing a fluid, having a hollow body delimited by a wall lining, and at least one device for feeding fluids to the hollow body, and/or discharging fluids therefrom. The molded part is characterized in that the wall lining contains cross-linked polyethylene.

Abstract: Silane cross-linked polyolefin tubes are used for drinking water and/or water for industrial use, are resistant to a chlorine content ranging from 0.1 to 5 ppm, have a minimum degree of cross-linking of 60%, are produced according to the single-stage process, and are comprised of the following polyolefin composition: (A) a polyolefin; (B) a mixture consisting of an organic silane of general formula RSiX3 (B1), of a radical-generating constituent (B2), and of a catalyst (B3); (C) a stabilizer mixture consisting of a high-molecular, phenolic constituent (C1) having a high melting point, of a sulfur-containing constituent (C2), of a phosphorous-containing processing stabilizer (C3), and of a metal deactivator (C4).

Abstract: The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.

Abstract: A process for machining a blank from all directions with a machine tool, such as a milling machine, involves the machining from all directions being based on a three-dimensional template. In a first step, the three-dimensional form and, if need be, also the surface finish of the three-dimensional template may be automatically measured, and the associated data may be saved. In a second step, a blank may be held by at least one clamping adapter and a first region is brought into its final, ready to use partial form by the machine tool or the milling machine using said data for numerical control. In a third step, the partially machined blank may be held by at least one clamping adapter in the first, finally machined region and the remaining region may be brought into its final, ready to use overall form by the same machine tool or milling machine.

Abstract: Process for preparing a compound having a nonaromatic C—C double or triple bond (compound A) from another compound or a mixture of other compounds having a nonaromatic C—C double or triple bond (compound B), which comprises bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at from 50 to 500° C.

Abstract: The invention relates to a method for producing dialdehydes and/or ethylenically unsaturated monoaldehydes by reacting at least one compound with at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylating catalyst with at least one complex of a metal of subgroup VIII. The subgroup comprises at least pnicogen chelate ligands.