摘要:
The invention relates to a method according to which a) in an immersion process, a molded body (4) is immersed in a liquid synthetic polyisoprene (IR) (synthetic latex), wherein the molded body (4) has first been treated with coagulants (coagulating agents) or thermally treated, b) after exchanging, the synthetic polyisoprene layer is left on the molded body (4) and freed of all salts by means of water, c) afterward, the synthetic polyisoprene layer is vulcanized together with the molded body (4) in a furnace, d) the synthetic polyisoprene layer is removed from the molded body (4), e) the salts on the synthetic polyisoprene molded piece (11), eliminated by the vulcanization, are washed away with water and a chlorinated solution, f) the synthetic polyisoprene molded piece (11) is halogenated by means of a halogenation solution, to neutralize the pH value thereof and to increase the suppleness thereof in contact with body skin, g) the synthetic polyisoprene molded piece (11) is dried. The electrical safety gloves thus produced are much more comfortable to wear, provide improved insulation protection, even with thinner wall thickness, and last longer.
摘要:
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.
摘要:
In a method for producing a textile piece of clothing with at least one abrasion-prevention zone provided with protector elements, the following steps are provided: 1) supplying a textile carrier layer (1), which can be stretched and is supplied in the form of a flexible tube (1) which is open at both ends and into which is introduced, prior to the coating material (5) being applied, a supporting element (2), by means of which the flexible tube (1) is pre-stretched and tensioned in a crease-free manner in the abrasion-prevention zones provided. 2) Supplying a pasty, curable coating material (5); 3) applying a multiplicity of portions of the coating material (5) to a surface of the carrier layer in order to form the protector elements, wherein the portions of coating material (5) are arranged on the surface such that the portions do not overlap and only part of the surface of the carrier layer is covered by the coating material (5). For this purpose, use is made of a metallic mould plate (10, 20), which contains a multiplicity of concave mould cavities (11, 21) for forming the protector elements (101), said mould cavities being filled with the pasty coating substance (5), and which is positioned, by way of the surface (12, 22) provided with the openings of the mould cavities (11, 21), on the flexible tube (1), which is supported by the supporting plate (2). 4) Curing the coating material (5), using temperature, to form a multiplicity of hard protector elements on the carrier layer.
摘要:
The present invention relates to a method of manufacturing a body made of composite material such as a shell of a helmet. Said body constitutes a multilayer structure where each layer is formed by superposed strata comprising portions of fabrics preimpregnated with thermoplastic resin in which at least some of said layers are formed by woven or non-woven LFRTP-type preimpregnated fabrics. The outer layer is formed by strata of portions of "veil" type or "felt" type fabrics, with non-woven and non-oriented fibers of lengths comprised between 5 and 20 mm. In the method, the multilayer structure arranged in a mold is subjected to the action exerted by a bag that is inflated due to pressure occupying the cavity of the mold.
摘要:
This invention pertains to an article for use in body armor, comprising a plurality of discrete sheet subassemblies contoured to the shape of a female breast arranged in a stack, without bonding, such that the breast contours are positioned on top of each other, each of the subassemblies comprising at least two nonwoven layers of high tenacity yarns such as par-aramid, a binder and a resin.
摘要:
A protective sock has a toe region, an ankle region, which surrounds the foot and the leg of the user around the ankle, and an Achilles tendon region which surrounds the rear part of the leg of the user above the heel. The sock is provided with protective pads molded onto the sock and covering the regions of the ankle and of the Achilles tendon.
摘要:
According to the invention, the section (2) comprises a double-sided adhesive strip (8) which is covered with a protective film (11). The aforementioned protective film (11) is removed by means of a pull tab (12) before gluing, said tab consisting of two tab parts (15) which are positioned on either side of a slit (16) in the film. The automated method comprises, in the extrusion line, a step whereby the pull tab (12) is joined to the adhesive-covering protective film in the middle of the adhesive area transversely to the section. The tab and the protective film are subsequently cut in order to produce two tab parts which are each connected to the end of one length of protective film (18) which is intended to be torn off. The invention is particularly suitable for use in the car industry and in building and for producers and users of extruded sections which are glued using double-sided adhesive.
摘要:
According to the invention, the section (2) comprises a double-sided adhesive strip (8) which is covered with a protective film (11). The aforementioned protective film (11) is removed by means of a pull tab (12) before gluing, said tab consisting of two tab parts (15) which are positioned on either side of a slit (16) in the film. The automated method comprises, in the extrusion line, a step whereby the pull tab (12) is joined to the adhesive-covering protective film in the middle of the adhesive area transversely to the section. The tab and the protective film are subsequently cut in order to produce two tab parts which are each connected to the end of one length of protective film (18) which is intended to be torn off. The invention is particularly suitable for use in the car industry and in building and for producers and users of extruded sections which are glued using double-sided adhesive.