Abstract:
The invention relates to a liner for the rehabilitation of fluid-conducting systems, comprising a) an inner film tube based on a thermoplastic, b) an outer film tube based on a thermoplastic, and arranged between the inner and the outer film tube, c) at least one fibrous tube based on a composite material that consists of (c1) industrially generated inorganic fibers, natural fibers or mineral fibers and (c2) man-made fibers, said fibrous tube being impregnated with a curable resin.
Abstract:
This invention pertains to a laminate structure suitable for use as electrical insulation, comprising a first paper layer comprising 90 to 99 weight percent uniformly distributed calcined mica and 1 to 10 weight percent supporting material, a majority by weight of the supporting material being in the form of a floc; and a support layer comprising unidirectional filaments or unidirectional yarns or woven yarns; wherein the support layer is bound to the first paper layer; the laminate structure having a dielectric strength of 15 kV/mm or greater, a Gurley porosity of 400 seconds or less, and total mica content of 60 weight percent or greater. The laminate structure can further comprise a second paper layer bound to the support layer, the second paper layer comprising 90 to 99 weight percent uniformly distributed calcined mica and 1 to 10 weight percent supporting material, a majority by weight of the supporting material being in the form of a floc.
Abstract:
Laminate structure suitable for use as electrical insulation comprising; a) a corona-resistant layer comprising 90 to 99 weight percent uniformly distributed calcined mica and 1 to 10 weight percent aramid material, the aramid material being in the form of floe, fibrid, or mixtures thereof; b) a support layer comprising unidirectional or woven filament yarns, the support layer having a first and second face; and c) a resin-compatible layer comprising 60 to 80 weight percent uniformly distributed uncalcined mica and 20 to 40 weight percent aramid material, the aramid material being in the form of floe, fibrid, or mixtures thereof; wherein the first face of the support layer is directly bound to the corona- resistant layer and the second face of the support layer is directly bound to the resin-compatible layer; the laminate structure having a total mica content of 60 weight percent or greater.
Abstract:
The present invention provides recyclable copper clad laminates (CCLs) each including copper coil and a recyclable/degradable fiber composition, and printed circuit boards that are made of or include the CCLs of this invention. Also provided are method for recyclying these CCLs and printed circuit boards.
Abstract:
A curable composite material having high z-direction electrical conductivity. The curable composite material includes two or more layers of reinforcement carbon fibers that have been infused or impregnated with a curable matrix resin and an interlaminar region containing at least conductive nano-sized particles, e.g. carbon nanotubes, and a light-weight carbon veil. According to another embodiment, the interlaminar region further contains polymeric toughening particles. Methods for fabricating composite materials and structures are also disclosed.
Abstract:
The present invention relates to a thermoformable panel for shelves composed of: at least one core plate having a honeycomb structure composed of a plurality of adjacent cells; a coating layer that includes at least one thermoplastic material coupled to the core plate on at least one face of the core plate. The invention envisions using coating films for the honeycomb core plate that improve adhesion between the material of the honeycomb core plate and the coating films, as well as optional finishing layers overlapped thereon, reducing costs in relation to present honeycomb panels by simplifying manufacturing processes, all while maintaining elevated properties of mechanical strength and low density, and therefore a low weight.
Abstract:
A panel for use in building construction comprises a plasterboard having two opposed faces, a polymer-based lamina being provided on one of these faces. The polymer-based lamina is characterised in that it is provided by a material for which the work done under uniaxial tensile stress to achieve a tensile strain of up to 0.12 is greater than 2.1 MJ/m 3 .
Abstract:
A composite panel includes a thermoplastic base and a basalt fiber-based composite layer attached to the thermoplastic base. The basalt fiber-based composite layer includes at least two sub-layers of basalt material with each sub-layer of basalt material being bonded to adjacent sub-layers of basalt material. The basalt fiber-based composite layer provides a protective fire barrier.
Abstract:
The present invention relates to methods of manufacturing composite products having a surface effect. In some examples described, a composite product has a simulated surface, for example a stone-effect surface formed by pressing a particulate-form surface material (30) and a sheet-form curable material (40) onto a substrate (44) having an open-celled structure. In other examples, a laminate product having a veneer is formed by pressing a veneer and a sheet-form material onto a substrate including a porous structure. The veneer may comprise a wood material. In other examples, a surface effect material is bonded to a skin by pressing a sheet-form curable material to a mould surface and the surface effect material. Where the surface effect material has a high thermal conductivity, the composite product formed can feel cool to the touch.
Abstract:
Methods are provided for intercalating, exfoliating and/or dispersing clay particles with a cationic polymer for form clay nanoparticles. The resulting clay nanoparticles may be incorporated in various polymeric articles, such as a container, preform, closure, liner, sheet or film.