Provided is a light weight and remarkably flexible sheet-shaped radio wave absorber having excellent radio wave absorbing capacity in milliwave band frequencies. The invention is a milliwave band radio wave absorption sheet comprising a radio wave reflection layer (A), a radio wave absorption layer (B) disposed above the layer (A) so as to be parallel thereto, and a protective layer (C) disposed above the layer (B) so as to be parallel thereto. The layer (B) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 10 to 20 and the absolute value of the imaginary part is 4 to 10. The layer (B) has a film thickness of 200 to 400 μm. The absolute value of the imaginary part/real part from the dielectric constant is within a range of 0.30 to 0.60. The layer (C) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 1.5 to 8.0 and the absolute value of the imaginary part is less than 1.0, and has a film thickness of 50 to 200 μm. In the milliwave band radio wave absorption sheet, the optical reflectance at an incident angle of 60° is 50% or greater, and the optical reflectance at an incident angle of 20° is 25% or greater. In addition, the invention provides a milliwave band radio wave absorption method using the radio wave absorption sheet, and a radio wave damage prevention method involving the installation of the radio wave absorption sheet.

The present invention is to provide a method for producing a laminate having excellent adhesion properties. An embodiment of the present invention is a method for producing a laminate, the method including: a step 1 of dry-treating a surface A of a plastic to obtain a dry-treated plastic having a surface B that has been dry-treated; a step 2 of wiping the surface B with a cleaning tool containing a composition for wiping, the composition containing at least one solvent selected from the group consisting of water and polar solvents, and a silane coupling agent, to obtain a cleaned plastic having a surface C that has been wiped with the cleaning tool; and a step 3 of applying at least one selected from the group consisting of adhesives and primers on the surface C to obtain a laminated body.

a film composite for manufacturing a package for planar carriers of pharmaceutical active substances, for example transdermal patches, encompassing, in a direction from the outer side of the film composite toward its inner side: a metal layer; an acrylic-acid-containing joining layer; a polyethylene layer; and a COC layer made of cycloolefin copolymer, a side of the COC layer which faces away from the metal layer being an exposed surface of the film composite, wherein provision is made that the polyethylene layer encompasses metallocene polyethylene.

A resin composition including: a thermosetting resin component including a mesogen; and a phosphorus atom-containing thermoplastic polymer type frame retardant, wherein the thermoplastic polymer type frame retardant is a phosphorous atom-containing formed by polymerizing or copolymerizing one of monomers represented by general formulae (1) and (2) below, ##STR00001## wherein, in the general formulae (1) and (2), each of R1 and R2 is any one of an alkyl group, an alkoxy group, an aryl group and an aryloxy group, R1 and R2 being different or identical, and R3 is a methyl group or a hydrogen atom.

A copper-clad laminate includes an insulating layer that contains a cured product of a resin composition containing a polymer having a structural unit represented by the following Formula (1) in a molecule, and a metal foil that is laminated on the insulating layer, and in which a chromium element amount, on an exposed surface of the insulating layer exposed by an etching treatment of the copper-clad laminate is 7.5 at % or less with respect to a total element amount on the exposed surface, and ten-point average roughness of the exposed surface is 2.0 μm or less.

##STR00001##

In Formula (1), Z represents an arylene group, R.sub.1 to R.sub.3 each independently represent a hydrogen atom or an alkyl group, and R.sub.4 to R.sub.6 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.

A copper-clad laminate includes an insulating layer that contains a cured product of a resin composition containing a polymer having a structural unit represented by the following Formula (1) in a molecule, and a metal foil that is laminated on the insulating layer, and in which a chromium element amount, on an exposed surface of the insulating layer exposed by an etching treatment of the copper-clad laminate is 7.5 at % or less with respect to a total element amount on the exposed surface, and ten-point average roughness of the exposed surface is 2.0 μm or less.

##STR00001##

In Formula (1), Z represents an arylene group, R.sub.1 to R.sub.3 each independently represent a hydrogen atom or an alkyl group, and R.sub.4 to R.sub.6 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.

A flame retardant insulation module that includes an air layer-forming part including a first air layer-forming part and a second air layer-forming part disposed below the first air layer-forming part, which are disposed so that at least a portion of one does not overlap with a portion of the other; a lower end cover part that covers the lower end of the second air layer-forming part to separate the lower end from an external space; and an intermediate separation part for separating a first air layer and a second air layer. As such, heat insulation performance can be maximized, such that the insulation module has flame retardancy even when a fire occurs.

The present disclosure relates to adhesive article that include a first, stretch releasable adhesive and patterned adhesive elements on, within, or partially embedded in a surface of the adhesive. The adhesive elements can act as spacers between the adhesive surface and the mounting surface to prevent full contact and wet out of the first adhesive, whereby the article can be removed from the wall and placed at a new location without damage to the wall surface or the article. Once the final location is selected, the separation created by the engineered elements can be overcome by applying sufficient pressure; the first adhesive can contact and adhere more permanently to the wall. Thus, a stretch releasable adhesive articles of the present disclosure can move freely relative to the desired mounting surface, while developing additional tack and holding power after sufficient pressure is applied.

A thermal insulation device includes a film unit including inner and outer layers and a thermal insulation unit. The outer layer is mounted to a window of a vehicle. The inner layer has a peripheral portion connected sealingly to the outer layer, and a center portion spaced apart from and cooperating with the outer layer to define a thermal insulation space therebetween. The film unit is formed with inlet holes communicating with the thermal insulation space and a seating space of the vehicle, and outlet holes communicating with the thermal insulation space and open toward the bodyshell, such that air in the seating space flows into the thermal insulation space through the inlet holes and is discharged from the thermal insulation space toward the bodyshell through the outlet holes. The thermal insulation unit includes a heat insulation layer disposed on the outer layer.

A composite insulating material is provided. In one or more configurations the composite insulating material includes one or more active or responsive elements that mitigate corrosion under insulation (CUI). In a further aspect of the present invention, one or more active components of a composite insulation material are provided that dynamically generate an insoluble barrier within an insulating material through a bio-mineralization process.