Abstract: A process for producing cycloalkenamer-containing compositions involves converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture. The product mixture is worked up to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO2. The extraction involves at least two stages: an extraction with liquid CO2 under the supercritical conditions, and then an extraction with supercritical CO2. Such cycloalkenamer-containing compositions can be used, for example, in the field of packaging materials, especially for food and drink.

Abstract: A process for producing cycloalkenamer-containing compositions involves converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture. The product mixture is worked up to remove monomers and oligomers of the cycloalkenes to obtain the polyalkenamer-containing composition by extraction with CO2. The extraction involves at least two stages: an extraction with liquid CO2 under the supercritical conditions, and then an extraction with supercritical CO2. Such cycloalkenamer-containing compositions can be used, for example, in the field of packaging materials, especially for food and drink.

Abstract: The invention relates to a combination of fluorescence conversion dyes in plastics mouldings made of polymethyl (meth)acrylate, where these are used to convert natural insolation into light that can be used by the solar cells.

Abstract: The invention relates to the production of a transparent, weather-resistant barrier film by lamination, extrusion lamination (adhesive lamination, melt lamination or hotmelt lamination) or extrusion coating. The film can also contain a scratch-resistant coating. For this purpose, two or more transparent film composites, which consist in each case of two externally disposed polyolefin or polyester layers which are in each case inorganically coated and glued to the inorganic layer on the inside, are connected to each other. Said composite is laminated with a weather-resistant, transparent film (e.g. PMMA or PMMA polyolefin coextrudate or PMMA polyester coextrudate). The inorganic oxide layers have the property of a high optical transparency while having at the same time a good barrier effect against water vapour and oxygen while the PMMA layer exhibits weather resistance stability.

Abstract: The invention relates to a barrier foil, wherein a barrier composite (5) consisting of two carrier foils (3), each of which contains an inorganic barrier (4) (SiOx or AlOx), is combined by lamination or extrusion coating with a weather-resistant protective layer (1), wherein a bonding agent is used as an adhesive layer (2).

Abstract: The invention relates to a barrier film, in which a backing film (4) containing an inorganic barrier (3) (SiOx or AlOx) is combined with a weather-resistant protective layer (1) using lamination or extrusion coating, an adhesion promoter being used as the adhesive layer (2).

Abstract: The present invention relates to processes for producing a basic polymer, wherein an amide polymer obtainable by chain polymerization and with at least one of the following properties: (a) a glass transition temperature in the range of from about 30 to about 250° C., (b) a molar mass of at least about 1,000 g/mol, (c) a viscosity as about 20% by weight aqueous solution of at least about 500 mPa×s, (d) uncrosslinked is hydrogenated.

Abstract: The present invention relates to compacted superabsorbers, producible in that a mixture, at least comprising synthetic particulate superabsorber, is subjected to a specific contact force or to a pressure, processes for producing such superabsorbers, composites produced from superabsorbers of this type and the use of such superabsorbers.