Abstract: Method of manufacturing an anti-ballistic plate (100), comprising: providing a stack (4) of fiber layers (3) of polymer fibers (1), with voids (5) between the fibers, wherein the volume of the voids constitutes at least 6% of the volume of the provided fiber layers, and the average thickness of said fiber layers (3) corresponds to a thickness resulting from at least two rows (2) of fibers. Heating the stack (4). Compressing the stack to permanently deforming the fibers, thereby reducing the volume of said voids to less than 3% of the volume of said fiber layers, as step a) comprises providing the voids with a sufficient volume of a compressible gas or vacuum to enable said reduction of volume. Cooling the stack (4) while under compression. The compression step comprises compressing the stack using a pressure of at least 200 bar.

Abstract: Anti-ballistic plate assembly (10), having an anti-ballistic front plate (1) with an inner face (1b) and an outer face (1c), anti-ballistic back plate (2) with inner face (2b) and outer face (2c). Two carrying straps (5) extends on respective side of the person’s neck are attached to the front plate (1) and/or the back plate (2), respectively, at respective attachment areas (7a, 7b) located at the inner face (1b, 2b). The anti-ballistic front plate and/or back plate have an upper and inner edge portion (1d, 2d). The attachment area (7a, 7b) of the front plate (1) and/or back plate, respectively, is arranged a respectively first and/or second vertical distance (D1, D2) below the upper and inner edge portion (1d, 2d).

Abstract: A helmet attachment system (5, 31) comprising a helmet (1), a net (5) arranged on the helmet (1), and a helmet attachment arrangement (31). The helmet attachment arrangement (31) has a base layer (33) and an attachment layer (35). The attachment layer (35) is attached on one face of the base layer (33). The attachment layer (35) comprises a plurality of attachment layer sections (35a) that have a mutual distance and that define a string-receiving pattern (37) configured to receive strings (9) of said net (5).

Abstract: An improved polymer solution concentrator and accompanying devolatilization process enable concentration of polymer solutions to higher concentrations and viscosities than prior art equipment, overcome the viscosity limits and metering difficulties of the prior art, reduce the overall size of the devolatilization system, and reduce the energy, resources and cost required to finish polymer formulations. The concentrator replaces a conventional flash tank and includes a generally solid conically-shaped twin barrel. A pair of counter-rotating intermeshing screws is disposed in the barrel, and includes a portion with a vapor removal geometry and a portion with a positive displacement geometry. A vapor discharge port is formed in the barrel, and upon rotation of the screws in the barrel, a polymer formulation is concentrated from a value below about 40 weight percent to a value of up to about 98 weight percent.

Abstract: A dewatering machine for reducing moisture of a polymer or an elastomer includes a generally solid barrel and a pair of screws disposed in the barrel. At least a portion of the screws are intermeshing, and drive means are coupled to the screws. At least one mechanical filter is connected to the barrel. The machine includes means that enable particles of the polymer or the elastomer to fuse, which reduces the amount of fines that escape from the machine. In addition, the machine reduces the moisture of the polymer from up to about 20 percent water by weight to less than about 0.5 percent water by weight, and the moisture of the elastomer from up to about 50 percent water by weight to less than about 3.0 percent water by weight. A method of dewatering for reducing the moisture of a polymer or an elastomer is also provided.

Abstract: A dewatering machine for reducing moisture of a polymer or an elastomer includes a generally solid barrel and a pair of screws disposed in the barrel. At least a portion of the screws are intermeshing, and drive means are coupled to the screws. At least one mechanical filter is connected to the barrel. The machine includes means that enable particles of the polymer or the elastomer to fuse, which reduces the amount of fines that escape from the machine. In addition, the machine reduces the moisture of the polymer from up to about 20 percent water by weight to less than about 0.5 percent water by weight, and the moisture of the elastomer from up to about 50 percent water by weight to less than about 3.0 percent water by weight. A method of dewatering for reducing the moisture of a polymer or an elastomer is also provided.

Abstract: A method and apparatus for making products from polymer wood fiber composite is described. The method includes the steps of providing a extruder having two counter-rotating non-intermeshing screws, supplying to the extruder fiber material and polymer material, mixing and heating the fiber material and polymer material in the extruder for form a mixture, removing the mixture from the extruder and placing the mixture in a press, and compression molding the mixture in the press to form the product.