摘要:
The present invention concerns a method for impregnating a lining element (10) for a pipeline (100), in which method a resin-absorbable layer (20) is impregnated with a curable resin, the resin being fed to the resin- absorbable layer (20) from the side opposite from a fluid-impermeable coating (40), either through a foam layer (30, 50) or fed directly to the resin- absorbable layer (20), and the at least one foam layer (30, 50) also being at least partially impregnated with the resin. The invention also concerns a lining element (10) with a resin-absorbable layer (20), at least one foam layer (30, 50) and a fluid-impermeable coating (40), the foam layer (30, 50) being formed in such a way that the resin can be forced through the foam layer (30, 50) in order to impregnate the resin-absorbable layer (20) with a curable resin, and being formed in such a way that the foam layer (30, 50) forms a substantially fluid-impermeable protective layer by means of the resin contained therein in the cured state of the resin.
摘要:
The invention relates to a method for producing sandwich construction elements for substantially load-bearing and self-supporting building parts, said method containing the following steps: a) producing at least one layer of a mechanically bonded fibre nonwoven which is impregnated with a binder based on at least one heat-curable resin system, and is itself based on naturally occurring raw materials, in particular hemp, flax, jute, sisal, kenaf, cotton and wool and/or mixtures thereof, b) curing the heat-curable resin system in order to produce at least one hardened layer of the fibre nonwoven, wherein, before and/or during the curing operation, a surface structure is applied to at least part of the layer of the fibre nonwoven and/or at least one further binder based on at least one heat-curable resin system is applied to at least part of the surface of the hardened layer of the fibre nonwoven, and fixed thermally, c) bringing a heat-foamable or heat-foamed phenol resin into contact with that surface of at least one hardened layer of the fibre nonwoven which has been modified according to step b), d) possibly annealing, at temperatures ranging from 40 to 80°C, the composite produced in a) to c), and e) curing the further binder based on at least one heat-curable resin system, and possibly applied in b), at a temperature ranging from 150 to 200 °C, possibly under elevated pressure.
摘要:
Disclosed herein are conformable protection pads, which can be integrated into articles such as clothing and protective cases. In one embodiment, an exemplary cushioning pad includes a first channel comprising a thickness and a width. The first channel comprises a continuous upper layer and a continuous lower layer, which is at least partially bonded to the continuous lower layer. The cushioning region is disposed adjacent to the first channel, and has a thickness greater than the thickness of the first channel. The cushioning region further includes a cushioning material disposed between and bonded to the continuous upper layer and the continuous lower layer. A groove maybe defined in the upper surface of the cushioning region, with a thickness less than the thickness of the cushioning region and greater than the thickness of the first channel..
摘要:
Fire-resistant structures, fire-resistant insulations and a method for fire-proofing and fire- protection of permanent or temporary structures or objects. The fire-resistant insulation withstands temperatures between 1200°C and 2000°C on the exterior side of the insulation, and the interior side provides a shield for fire-protected structure or object against temperatures not exceeding 300°C. A method for fire-protection comprises steps of providing a fire-protection for structures and objects subjected to fires, brush-fires or fire storms.
摘要:
Helmets for military and other applications that require resistance to high energy fragments and rifle bullets are disclosed. The helmets are fabricated with a combination of ceramic, either as a monolith or as a plurality of discreet pieces, and an inner backing material having a plurality of fibrous layers such as polyolefin and/or aramid fiber layers.
摘要:
An article includes a film and a non-woven having fibers, and an embossed seal joining a portion of the film and the non-woven. The seal includes discrete extended elements formed in the film and surrounded by lands in the film. The discrete extended elements having open proximal ends, open or closed distal ends, and sidewalls disposed between the proximal and distal ends, and portions of the discrete extended elements having a thickness less than that of the lands. Fibers of the non-woven are embedded in at least one of the lands and in the sidewalls of the discrete extended elements through the open proximal ends.
摘要:
Textiles, garments and methods comprising a fabric and a variegated structure woven in the fabric and adapted to control a parameter of the textile construction. The parameter may be strength, breathability, and/or other properties. A visual pattern may be used to indicate the variegated structure. The visual pattern may be made in one or more of color, material, patterns. The fabric may be a multilayered fabric. A garment may be made of pieces cut from the fabric to satisfy a desired garment profile. The garment profile may be based on a parameter of strength, breathability, and/or other properties.
摘要:
A breathable composite barrier fabric for protective garments includes a high strength nonwoven web, a barrier layer and an aperture film layer, with the barrier layer between the high strength nonwoven web and the film layer. The different layers and webs may be bonded together to form the fabric using calendaring, thermal bonding and/or adhesives. The breathable composite barrier fabric is capable of blocking particles as small as 0.3 microns at greater than 99% efficiency while allowing air transmissions between 7 CFM and 9 CFM at 20 Pa. Protective garments may be constructed using the breathable composite barrier fabrics so that the high strength nonwoven web is on the body side of the garment and the film layer is on the exterior of the garment.
摘要:
Porous multilayer articles and methods of making are disclosed. Multicomponent polymeric fibers are introduced into a forming chamber and are deposited onto a first porous substrate. The multicomponent fibers are then bonded to each other to form a porous coherent web, and the porous coherent web is bonded to the first porous substrate, so as to form a porous multilayer article. The porous coherent web contains particles that are bonded to the multicomponent fibers of the web. The particles in the porous coherent web may be e.g. abrasive, absorbent, etc.
摘要:
Multilayer meltblown composites, articles made therefrom, and methods for making same. One method can include meltblowing a first material to form a first meltblown layer; meltblowing a second material to form a second meltblown layer; and meltblowing a third material to form a third meltblown layer, wherein each material is the same or different, each material includes at least one resin having a MFR of about 2,000 dg/min or less, as measured by ASTM D1238, 2.16 kg, 230°C, and at least one of the first, second, and third materials comprises an elastomer having a recovery of at least 70% after 100% deformation, as determined by ASTM D412.