The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D dissolved in mercapto-functional polyorganosiloxane(s) as Component E, the mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, wherein Component D is dissolved in Component E before Component D is combined with the other components of the radiation-curable silicone composition. The invention also relates to a process of producing a radiation-curable composition wherein the process comprises the steps of providing a solution of dye(s) in a composition comprising mercapto-functional polyorganosiloxane(s) having a fraction of (mercaptoalkyl)methylsiloxane units of at least 50 mol %, combining the solution containing the dye(s) dissolved in the mercapto-functional polyorganosiloxane(s) with mercapto-functional polyorganosiloxane(s), organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties, photo-initiator(s) for initiating a curing reaction between Component A and Component B, optionally filler(s), stabilizer(s) and additive(s).

A method of forming a net shape preform for a high performance ballistic helmet includes preparing one or more full prepreg plies, preparing one or more filler prepreg plies, wherein a shape and orientation of one filler prepreg ply of the one or more filler prepreg plies is different from a shape and orientation of another filler prepreg ply of the one or more filler prepreg plies, layering the one or more full prepreg plies with one or more filler prepreg plies to form a ply stack and deforming a portion of the ply stack while constraining the ply stack by applying in-plane tensional force to the ply stack to form the net-shape preform.

A composite armor includes a ceramic substrate defining a frontside opposite a backside, where a thickness is defined extending between the frontside and the backside. A first tension-wrapped thermoplastic composite overwind is wrapped around the ceramic substrate about the frontside and backside. A first portion of the first overwind overlaps a second portion of the first overwind. The first and second portions of the first overwind are fixedly attached to one another utilizing a first localized heating. The first overwind includes a first tensile pretension. A backing is disposed about the backside of the ceramic substrate attached to the first overwind. The ceramic substrate has a higher modulus of elasticity in comparison to the overwind. The first overwind has a higher modulus of elasticity in comparison to the backing.

According to this procedure, these steps are made:

a) immersing a shaped mold (4) in a dipping process in a liquid synthetic polyisoprene (IR) (synthetic latex), wherein the shaped mold (4) has previously been treated with coagulation agent (coagulants) or thermally treated,

b) after the immersion, the synthetic polyisoprene layer is left on the shaped mold (4) and is freed from all salts with water,

c) thereafter, the synthetic polyisoprene layer together with the shaped mold (4) is vulcanized in an oven,

d) the synthetic polyisoprene layer is removed from the mold (4),

e) the salts precipitated by the vulcanization on the synthetic polyisoprene molded body (11) are washed off with water and a chlorine-containing solution,

f) the synthetic polyisoprene molded body (11) is halogenated to neutralize its pH and to increase its suppleness in contact with body skin with a halogenating solution,

g) the synthetic polyisoprene molded body (11) is dried. The electro-protective gloves thus produced are much more comfortable to wear, provide better insulation, even with thinner wall thickness, and they are more durable.

The invention relates to a preformed sheet, comprising a network of polyethylene fibers having a tensile strength of at least 1.5 GPa, impregnated with at least 10% of a plastic wherein the plastic material is an acrylic based thermoplastic material with a glass transition temperature of at least 25? C. The invention further relates to an assembly of at least two preformed sheets and to a ballistic resistant article comprising at least one assembly.

An armor plate is provided having a lamination of an embedded reinforcement basalt fiber mesh within a laminated cast metal alloy; and at least two layers of an aramid fiber. A process to make the armor plate can include suspending a basalt weave within a mold; heating aluminum 6061 or 7075 alloy to a molten state; pouring the molten aluminum into the mold; cooling the resultant matrixed aluminum to ambient temperature; and laminating at least two layers of ballistic fiber to the matrixed aluminum.

A polyvinyl acetal poly(vinyl acetal), such as polyvinyl butyral, resin formulation, a method of extruding poly(vinyl acetal) resins, and related materials and products that provide for monolithic poly(vinyl acetal) sheets and glass panes having high Tg of at least 50 C. and high modulus at acceptable rates as indicated by their high melt flow index. This is made possible by a reduction in the amount of plasticizer while using a low molecular weight resin not to exceed 160,000 to obtain a thermoplastic resin having a high melt flow index and high Tg. The articles made with these monolithic interlayer sheets can be used in applications that require good modulus at outdoor temperatures.

An injection moulded acoustic filter comprising a foil piece or filter structure having a plurality of micro-slits configured to act as acoustic channels through the foil piece for filtering sound waves impinging the foil piece. The micro-slits have a maximum slit width across a surface of the foil piece of less than one hundred micrometres and a combined slit length along the surface of the foil piece of at least five millimetres. An earplug comprising the acoustic filter. A method and mould for manufacturing the acoustic filter.

A mold for use in the production of a ballistic article from a composite laminate stacked material wherein the mold has a sliding sealing section that nests with a outer permitter section and base portion so as to shield the sides of the composite laminate stacked material from applied isostatic pressure applied when in an autoclave. By shielding the sides of the composite laminate stacked material excess resin matrix material can be forced from the composite laminate stacked material to provide a uniform composite article with reduced weight and reduced thickness.

A protective material in roll form comprising a laminate fabric with a matrix formed of one or more thermoplastic films; the fabric is advantageously an aramid fabric. The production method of the protective material comprises the direct lamination of a fabric with one or more thermoplastic films, by means of a continuous production line that operates at a temperature between 100 and 250? C. and a pressure from 5 to 60 bar, applied for a time of at least 30 seconds.