A method for manufacturing a metal clad laminated plate includes hot pressing a laminated body by a double belt press method. The laminated body includes an insulating film containing the liquid crystal polymer and the metal foil lying on the insulating film. In hot pressing the laminated body, a highest heating temperature is higher than or equal to a temperature lower than a melting point of the insulating film by 5° C. and lower than or equal to a temperature higher than the melting point by 20° C. The highest heating temperature is maintained for longer than or equal to 20 seconds and shorter than or equal to 120 seconds.

A resin sheet includes a porous structure. The porous structure is configured to adjust transmission of a millimeter wave. The porous structure has a relative permittivity varying in stages in a thickness direction of the resin sheet from a plane on which the millimeter wave is incident, the relative permittivity varying such that a difference between average relative permittivities in two adjacent layer portions is a predetermined value or less, the layer portions each having a particular thickness smaller than a wavelength of the millimeter wave. The porous structure has, as pores, only pores each having a pore diameter equal to or less than 10% of the wavelength of the millimeter wave.

A circuit board includes, in order in a stacking direction, a first insulating layer, a second insulating layer in contact with the first insulating layer, and a conductor layer, the first insulating layer includes a liquid crystal polymer as a main component, and the second insulating layer includes a fluoropolymer including at least one of polytetrafluoroethylene and a perfluoroalkoxy alkane and includes a polyimide resin with an imidization rate of about 90% or more, the polyimide resin being present in an amount of about 0.5 parts or more by weight and less than about 20 parts by weight per 100 parts by weight of the fluoropolymer.

An insulation product includes a first layer of a fibrous insulating material, a second layer of a facing material attached to a first surface of the first layer, and a third layer of a slip sheet material and/or a lubricant attached to a second surface of the first layer. The first surface and the second surface are on opposite sides of the first layer and are parallel to one another. For certain applications, the insulation product may include a layer of a slip sheet material and/or lubricant attached to the first surface of the first layer instead of the second layer of a facing material.

Various embodiments relate to an electromagnetic wave absorber having a honeycomb sandwich structure, which is capable of absorbing broadband electromagnetic waves using electromagnetic properties of a metal-coated dielectric fiber, may comprise: at least two honeycomb core layers in each of which hexagonal units formed of a material comprising the metal-coated dielectric fiber are continuously arranged; and skin layers which are disposed on top surfaces and bottom surfaces of the at least two honeycomb core layers and each include a bottom layer, a top layer, and an intermediate layer. Various other embodiments are possible.

A sound-absorbing panel includes: an inner skin traversed by holes and intended to be oriented towards a channel in which a fluid flows, a heating mat formed by strips fixed to the inner skin on the side opposite to the channel and oriented in a first direction, wherein two adjacent strips are distant from each other in order to define a slot between them, a base fixed to the strips on the side opposite to the inner skin, wherein the base includes, on the strips side, grooves extending in a second direction different from the first direction and wherein the base has, between two successive grooves, a rib, a cellular core fixed to the base on the side opposite to the strips, and an outer panel fixed to the cellular core on the side opposite to the base.

Disclosed herein are flexible plasma applicators based on fibrous layers that are capable of rapidly sanitizing a surface via either direct or indirect contact with said surface.

A sealing structure with high air-tightness and an organic electroluminescence device with high air-tightness are provided regardless of a pattern of a first metal layer overlapping with glass frit. A second metal layer is provided in a region where a common power supply line overlaps with the glass frit. Since laser light is absorbed or reflected by the second metal layer, the glass frit can be uniformly heated. Therefore, an object to be sealed can be sealed with a low-melting-point glass in which a crack is not easily generated.

A multilayer containment and protection tube for conduits, cables and the like, includes an inner layer made of polymeric material, which is electrically at least antistatic, with a smooth internal surface, which forms a duct for supporting conduits or cables. The tube further includes one or more intermediate layers of electrically at least antistatic reinforcement, an outer layer made of electrically at least antistatic polymeric material, and a covering and finishing layer, which is electrically at least antistatic.

A lightning strike dispersion structure may include a composite component having an outboard surface, wherein the composite component is electrically nonconductive. The lightning strike dispersion structure may include a metal sheet coupled to and extending across a minority portion of the outboard surface of the composite component, wherein the metal sheet is electrically conductive. The lightning strike dispersion structure may also include a metal stud coupled to and in electrical contact with the metal sheet, the metal stud extending completely through the composite component, wherein the metal stud is electrically conductive.