Abstract: The invention relates to a material board, in particular an engineered wood board (1) comprising at least one core layer (2) made of strands (3), and outer layers (4, 5) made of chips (6), characterised in that one or both of the outer layers (4, 5) is/are designed as partial-coverage outer layers such that individual strands (3) extend at least partly through the outer layer (4, 5) up to the board surface, thereby forming interruptions in the outer layer (4, 5).

Abstract: The invention relates to a material board (1) which comprises a core (2) and a first cover layer (3) and a second cover layer (4), each of which is formed by a mixture (7, 8) formed by lignin-containing particles (5, 6) and binder, which mixture is designed to form a solid body structure in a chemical binding process. The aim is to provide a material panel, which, for ecological and economical reasons, comprises a high proportion of particles based on annual plants and still exhibits good mechanical properties. Another object of the invention can be considered that of ensuring that the system load is kept relatively low during the production process. Another object can be considered that of keeping the proportion of stock removal low.

Abstract: A press for making a continuous sheet from composite material has upper and lower press belts having respective lower and upper reaches that vertically spacedly confront one another across a press gap having an upstream inlet end and a downstream outlet end, and that have transversely spaced outer edges extending in the direction. The belts are advanced direction and thereby draw a mat of the composite material in the inlet end, compress it into the sheet, and expelling the sheet from the downstream end. Two transversely spaced elastic seal strips extend in the direction in the gap and are each engaged between a respective one of the outer edges of the upper belt and the respective outer edge of the lower belt. Each belt has at each of the edges a surface in engagement with the respective edge strip and having an average peak-to-valley height of less than 1 ?m.

Abstract: A press for making a continuous sheet from composite material has upper and lower press belts having respective lower and upper reaches that vertically spacedly confront one another across a press gap having an upstream inlet end and a downstream outlet end, and that have transversely spaced outer edges extending in the direction. The belts are advanced direction and thereby draw a mat of the composite material in the inlet end, compress it into the sheet, and expelling the sheet from the downstream end. Two transversely spaced elastic seal strips extend in the direction in the gap and are each engaged between a respective one of the outer edges of the upper belt and the respective outer edge of the lower belt. Each belt has at each of the edges a surface in engagement with the respective edge strip and having an average peak-to-valley height of less than 1 ?m.

Abstract: A rubber sheet is made from rubber-containing granules by first coating the rubber granules with a binder, then forming the coated rubber granules into a mat having a core layer with a low moisture level of less than 5% and a pair of outer surface layers, and then, without substantially increasing the low moisture level in the core layer, setting in at least one of the outer layers a high moisture level of 10% to 50% by weight and thereby imparting to the mat an inhomogeneous moisture profile. The mat with the inhomogeneous moisture level is then hot-pressed with pressure and heat so as to vaporize moisture in the one outer layer and drive steam into the core layer, and the hot-pressed mat is cured.

Abstract: A process for producing rubber sheets, rubber mats or similar rubber products from rubber granules, preferably from rubber recycled from used tyres, in a press, wherein the rubber granules are coated with at least one binder and a pressed material mat is produced from the coated granules, wherein a humidity level which is higher than in other mat regions is set at least in the region of the surface of the pressed material mat or in at least one top layer close to the surface, and wherein the pressed material mat having a moisture profile which is inhomogeneous over the mat thickness is introduced into a press and is pressed to form a rubber sheet in the press by means of pressure and heat, with the binder being hardened.