Abstract: The invention pertains to a method for stabilizing stucco wherein a fresh stucco is provided; water is added to the fresh stucco to obtain moistened stucco, and the moistened stucco is maintained at a temperature of at least 30° C. for a time interval of at least 30 minutes to obtain a stabilized stucco. The process allows inter alia for an easy adjustment of the activity of the stabilized stucco, which is useful to e.g. adjust setting time of a corresponding stucco slurry. The invention further pertains to a method for producing gypsum plasterboards, wherein a stabilized stucco obtained with the above method is used.

Abstract: The invention relates to a conveyor line for the continuous production of drywall boards as well as a slurry distributing device which is used in this conveyor line. The distributing device is used for the uniform and low-speed flow distribution of slurries.

Abstract: A rotary union for distributing flowing material, and includes a central shaft having an upper end defining at least one inlet configured for receiving the material, and being in communication with a pocket configured for receiving the material, a lower end of the pocket defining at least one outlet port. An annular sleeve surrounds and rotates relative to the central shaft, the sleeve being provided with a plurality of radially-spaced outlet nipples. A gap is defined between an exterior surface of the central shaft and an interior surface of the sleeve, and at least one seal is disposed in the gap for isolating the gap from the material flowing through the outlet port and into the nipples. The central shaft is provided in vertically-stacked components including an upper, inlet portion, a middle or central delivery portion including the pockets and the outlets, and a lower-most base portion.

Abstract: The invention relates to a drywall comprising a first wall section (2) with first stud elements (4), wherein the first stud elements are arranged with a first regular centre distance, wherein in the first wall section a first panelling (5) is arranged at least on one room side (R) of the first stud elements (4). The drywall is characterized by a second wall section (3) with second stud elements (6), wherein a second panelling (7) is arranged in the second wall section at least on the room side (R) of the second stud elements (6) and wherein the second stud elements are arranged with a second regular centre distance (C) which is smaller than the first regular centre distance (A). The invention also relates to a kit and a method for constructing a drywall.

Abstract: The invention relates to a composition for a powder mortar comprising one or more fillers, one or more binders, one or more thickeners and optionally further additives, wherein at least one of the one or more binders comprises a starch, and wherein at least one of the one or more thickeners is an etherified starch. The invention further relates to a corresponding powder mortar, in particular for use as a spackling compound.

Abstract: A panel with one or more perforations, having a front surface, wherein the contrast Cm between the front surface and the one or more perforations is less than 0.3, a sound absorbing system including a panel and a masking layer, wherein the masking layer is air permeable, and the use of the panel or the sound absorbing system.

Abstract: Method of attaching a lining 1 to an interior surface 10 of a room comprising the steps of: providing a first sheet of lining 1 to be applied to the interior surface 10; applying a plurality of glue dots 2 to the interior surface 10 or to the first sheet of lining 1; and attaching the first sheet of the lining 1 to the interior surface 10 such that the first sheet of lining 1 is fixed to the interior surface 10 via the glue dots.

Abstract: A device includes a desulfurization system which forms a hydrogen sulfide-containing acid gas; a system for extracting elemental sulfur and a hydrogen sulfide-containing tail gas as exhaust gas; a device for generating electricity and gypsum from the tail gas; and a gas line system for supplying acid gas from the desulfurization system to the system for extracting elemental sulfur and to the device for generating electricity and gypsum, and for supplying tail gas from the system for extracting elemental sulfur to the device for generating electricity and gypsum. The gas line system has a gas distributing apparatus which supplies acid gas solely to the system in a first position, supplies acid gas solely to the device in a second position, and supplies a first part of the acid gas to the system and a second part of the acid gas to the device in a distributing position.

Abstract: The invention relates to a composition for a pasty fill and finishing material, a pasty fill and finishing material, and a method for producing a pasty fill and finishing material. The composition comprises at least one filler, at least one binding agent, and additives, wherein the at least one filler has a density dependent flowability (ff?) value of from 3 to 20.

Abstract: The invention relates to a drywall comprising a first wall section (2) with first stud elements (4), wherein the first stud elements are arranged with a first regular centre distance, wherein in the first wall section a first panelling (5) is arranged at least on one room side (R) of the first stud elements (4). The drywall is characterized by a second wall section (3) with second stud elements (6), wherein a second panelling (7) is arranged in the second wall section at least on the room side (R) of the second stud elements (6) and wherein the second stud elements are arranged with a second regular centre distance (C) which is smaller than the first regular centre distance (A). The invention also relates to a kit and a method for constructing a drywall.

Abstract: A building panel with a high degree of isotropy with regard to the load bearing capacity and flexural strength. The building panel includes a first section and a second section, each section including at least one layer, each of the at least one layer having fibers, whereby the fibers are distributed substantially homogeneously throughout each layer, substantially parallel to the main surfaces of the panel and oriented predominantly in the same direction and the sections are firmly joined in transverse direction, and the first section is thinner than the second section.

Abstract: A method of producing a gypsum slurry for forming gypsum products, in particular gypsum boards, preferably gypsum paper boards, the method including the steps of: a) providing a gypsum paper product comprising a gypsum and a paper component, in particular a gypsum paper board, and/or broken parts thereof; b) wet grinding the gypsum paper product and/or the broken parts thereof containing at least parts of the paper component to form a wet ground gypsum paper component.

Abstract: An acoustic baffle (1) to be arranged in a building for the absorption of sound propagating there through, the acoustic baffle (1) comprising at least one panel (2) of a sound absorbing material, wherein the baffle (1) comprises at least one edge portion (3) having a recess (4) arranged therein of a size and shape so as to be capable of accommodating a suspension profile (8) in form-fit therein.

Abstract: Spackling and joint compounds with lower shrinkage, better sanding, and fast drying. Methods for repairing walls and ceiling in which the present spackling compound is applied to a variety of substrates, including wallboard, plaster and/or wood. Methods for finishing seams in wall construction in which the spackling/joint compound is used for finishing the seams.

Abstract: Breakthrough resistant drywall structure, classified at least for resistance class 2 according to DIN EN 1627 from September 2011, having at least two studs arranged to form a drywall substructure, each stud including a base portion and at least one flange portion, the drywall structure further having a plurality of building panels attached to the at least one flange portion, the drywall structure 1 further including a filling material, wherein the filling material comprises fibers.

Abstract: Water-resistant gypsum products may be produced using a novel catalyst that includes calcium aluminate cement and/or calcium sulfoaluminate cement. For example, a water-resistant gypsum panel may have a core comprising: interwoven matrices of calcium sulfate dihydrate crystals and a silicone resin, wherein the interwoven matrices have dispersed throughout them a siloxane polymerization catalyst comprising (a) 55 wt % to 100 wt % calcium aluminate cement and/or calcium aluminate cement and (b) 0 wt % to 45 wt % and magnesium oxide, wherein the weight ratio of the siloxane polymerization catalyst to the calcium sulfate dihydrate is 0.01-5:100. The water-resistant gypsum panel may have an absence of one or more of: Portland cement, limestone, aragonite, calcite, dolomite, and slaked lime.

Abstract: The invention concerns an apparatus for furnishing a liner with a layer of stucco slurry, comprising at least: a conveying device (24) for conveying a liner (7), said conveyor device defining a transport direction (31); a stucco slurry feeder device (26) for casting stucco slurry onto the liner (7); a stucco slurry distribution device (27) for distributing stucco slurry cast onto the liner (7); and at least one stripper device (28) for stripping stucco slurry from lateral portions of the liner. The invention further concerns a method for furnishing a liner with a layer of stucco slurry of defined width and a method for producing a gypsum plasterboard.

Abstract: Method for producing a cementitious board (1), wherein a first liner (2) with first overlap sections (5) is provided and furnished with at least one layer of at least one slurry comprising a cementitious material (3); a second liner (4) with second overlap sections (8) is provided and arranged such that it contacts the first overlap sections (5) of the first liner (2), wherein the at least one layer of the at least one slurry (3) is arranged between the first liner (2) and the second liner (4); an adhesive foam (6) is provided at least partly on at least one of the first or second overlap sections (5, 8); and the first liner (2) and the second liner (4) are bonded via the adhesive foam (6) in the overlap sections (5, 8).

Abstract: The invention relates to building products, in particular building boards, which comprise graphene and/or graphene oxide.

Abstract: The present invention is concerned with plasterboards including at least two layers A and B of different composition, wherein layer A includes a calcium sulfate binder and a synthetic polymer foam and the layer B includes a calcium sulfate binder and a surfactant foam and wherein the at least one layer A is a surface layer. Improved nail pull resistance can be achieved in lightweight plasterboards, if foamed synthetic polymer is present in a surface layer. The present invention further concerns a method for the production of corresponding products, an apparatus for the production of such products as well as the use of synthetic polymer foam in a surface layer to produce plasterboards with high nail pull resistance at a minimal amount of synthetic polymer.