Abstract: A method for heating a catalytic converter includes a) switching on a compressor; b) at least partially opening an injection valve; c) setting a combustion-air/fuel ratio of ?<1 in combustion chambers; d) detecting an actual value of the oxygen content in the exhaust gas; and e) comparing the actual value with a target value, where the target value corresponds to an exhaust-gas oxygen content that would be set in a region of the catalytic converter if the combustion-air/fuel ratio in the combustion chambers is approximately ?=1, where a manipulated variable output by a controller on a basis of a deviation of the actual value from the target value is kept constant when the actual value reaches one of two limit values of a value range within which the target value is ranged, and where the two limit values deviate from the target value by approximately 3%.

Abstract: The present application relates to a multilayer heat insulation board for thermal insulation for buildings, a back layer for a heat insulation board, a process for preparing a back layer, and the use of a multilayer heat insulation board for thermal insulation for buildings, especially for thermal insulation for ventilated facades.

Abstract: The present application relates to a multilayer heat insulation board for thermal insulation for buildings, a back layer for a heat insulation board, a process for preparing a back layer, and the use of a multilayer heat insulation board for thermal insulation for buildings, especially for thermal insulation for ventilated facades.

Abstract: The invention relates to a method for producing prepared roofing for renewing rooves, comprising a glass-nonwoven based planar structure (1) containing cavities (2, 3, 4, 5, 6, 7) spaced at intervals, which is laminated with a bitumen-based planar structure (10), a plastic film (8) being interposed between said structures. Said method is characterised in that the plastic film (8) is applied in a first step to a glass-nonwoven based planar structure (1) that has a mineral coating on one flat surface, by the application of molten plastic during an extrusion coating process to the opposite flat surface from the surface with the mineral coating. In a subsequent step, the bitumen-based planar structure (10) is laminated onto the surface of the glass-nonwoven based planar structure (1) that faces towards the applied plastic film (8). This permits a cost-effective production.

Abstract: The invention relates to a cover layer material on a basis of matting or fabric for the production of boards made of fluid or fluid-containing starting components and provided with cover layers, especially for the production of gypsum boards and polyurethane (PU) hard foam boards and their use in a continuous board producing apparatus.

Abstract: An aqueous medium containing reactive polymers, the reactive groups being N-methylol and/or etherified N-methylol groups, preferably based on methylolated, etherified or not, unsaturated carboxylic acid amides, included by polymerization, the portion of said reactive monomers being preferably 2.5 to 20% by weight, related to the total weight of the polymers, is applied to textiles by impregnation or preferably by coating in the presence of silanes and/or siloxanes containing amino groups and organometallic compounds, preferably zinc soaps and/or dialkyl-tin dicarboxylates as hardening agents, and heated at elevated temperature. A waterproof and water-repellent finish is obtained, resistant to washing and dry cleaning.