Abstract: The invention relates to anti-ballistic articles comprising a stack of sheets, each sheet having one or more mono-layers of polyethylene anti-ballistic fibers and a thermoplastic binder, wherein the specific energy absorption (SEA) of the anti-ballistic article is greater than 145 J/kg/m2 and the maximum % thickness increase, measured at about 90° C., is less than 8% after storing the article for 160 hours at 90° C.

Abstract: The invention relates to anti-ballistic articles comprising a stack of sheets, each sheet having one or more mono-layers of polyethylene anti-ballistic fibers and a thermoplastic binder, wherein the specific energy absorption (SEA) of the anti-ballistic article is greater than 145 J/kg/m2 and the maximum % thickness increase, measured at about 90° C., is less than 8% after storing the article for 160 hours at 90° C.

Abstract: Ballistic resistant sheets and molded articles formed thereof are disclosed, wherein a ballistic resistant sheet includes a stack of at least 4 monolayers, each monolayer containing unidirectionally oriented reinforcing fibers with a tensile strength of between 3.5 and 4.5 GPa, and at most 20 mass % of a matrix material, the areal density of a monolayer is at least 25 g/m2 and with the fiber direction in each monolayer being rotated with respect to the fiber direction in an adjacent monolayer. When a plurality of the ballistic resistant sheets are formed into a pile and subjected to curved molding conditions, a homogenous curved ballistic resistant molded article is formed without irregular folding of the ballistic resistant sheets in the pile.

Abstract: The invention relates to a process for the manufacture of an antiballistic article comprising the steps of forming a stack of sheets by stacking 2 or more sheets, each sheet comprising one or more mono-layers of anti-ballistic fibers and optionally a thermoplastic binder, followed by subjecting the stack of sheets to a reduced atmospheric pressure environment; and while maintaining the reduced atmospheric pressure environment, consolidating said stack of sheets to a pressure of at least 10 MPa at an elevated temperature. The invention also relates to an anti-ballistic article.

Abstract: The invention relates to a process for manufacturing a curved product, wherein the process comprises positioning a plurality of drawn polymeric reinforcing elements onto a mandrel, locally adhering at least a part of the elements to each other, and removing the product from the mandrel. The invention also relates to a process for manufacturing a curved article, preferably an armour article, from the curved product, the process comprising positioning the curved product in a mould and compressing said product at an elevated temperature and pressure. The curved armour article has good antiballistic properties and is substantially free of wrinkles.

Abstract: The invention relates to a process for the manufacture of an antiballistic article comprising the steps of forming a stack of sheets by stacking 2 or more sheets, each sheet comprising one or more mono-layers of anti-ballistic fibers and optionally a thermoplastic binder, followed by subjecting the stack of sheets to a reduced atmospheric pressure environment; and while maintaining the reduced atmospheric pressure environment, consolidating said stack of sheets to a pressure of at least 10 MPa at an elevated temperature. The invention also relates to an anti-ballistic article.

Abstract: An anti-ballistic helmet (1) having a shell (2) containing mono-layers of uni-directional ultrahigh molecular weight polyethylene (UHMwPE) fibers, the shell is at its rim being connected to a reinforcing profile (3).

Abstract: The invention relates to a ballistic resistant sheet comprising a stack of at least 4 monolayers, each monolayer containing unidirectionally oriented reinforcing fibres with a tensile strength of between 3.5 and 4.5 GPa, and at most 20 mass % of a matrix material, the areal density of a monolayer is at least 25 g/m2 and with the fibre direction in each monolayer being rotated with respect to the fibre direction in an adjacent monolayer. The invention further relates to a ballistic resistant moulded article, i.e. a shaped part, comprising at least two ballistic resistant sheets according to the invention, which may be used as, for example, a panel for use in e.g. a vehicle, especially a curved panel, a hard insert e.g. for use in protective clothing and bullet resistant vests, etc. The ballistic resistant moulded article optionally may have a ceramic or a metal strike face.