A combination of nanoparticles applied onto a mask filtration system, exemplarily including 1%-10% graphene; 1%-10% titanium dioxide; 1%-10% zinc oxide; 1%-10% copper oxide; 1%-10% silicon dioxide; and balance solvent is provided.

A light- and heat-shielding composite sheet includes: a fiber cloth; at least one layer of a synthetic resin film containing carbon black at a rate of 4% to 40% by mass both inclusive; and a synthetic resin adhesive containing titanium dioxide at a rate of 30% to 60% by mass both inclusive and bonding the fiber cloth with the synthetic resin film.

An object of the present invention is to provide a polymer film having a low dielectric loss tangent and a small difference in a linear expansion coefficient from that of a copper foil; and a laminate.

The polymer film of an embodiment of the present invention is a polymer film including a liquid crystal polymer, in which a hardness A at a distance of half of a thickness of the polymer film and a hardness B at a distance of 1/10 of the thickness of the polymer film satisfy a relationship of Expression (1A), and in a case where positions at distances of 1/10, 4/10, and 6/10 of the thickness of the polymer film are defined as a position T1, a position T2, and a position T3, respectively; and a region from the one surface to the position T1 is defined as a first surface layer region, and a region from the position T2 to the position T3 is defined as a central region, a void area proportion X in the first surface layer region and a void area proportion Y in the central region satisfy a relationship of Expression (2A).

[00001]$\left(\text{Hardness A + Hardness B}\right)/2\ge 0.10\text{GPa}$

[00002]$\text{Void area proportion Y - Void area proportion X}\ge \text{0}\text{.10\%}$

A self-adherent wall decoration has a body and two adhesive strips. The body is flexible and has a wear layer, a vinyl print layer, a waterproof core layer, and an underlayment layer. The wear layer is composed of poly(vinyl chloride), acrylate copolymer, dioctyl terephthalate, organotin thermal stabilizers, etc. The vinyl print layer is formed on the wear layer, and is composed of poly(vinyl chloride), acrylate copolymer, etc. The waterproof core layer is formed on the vinyl print layer, and is composed of poly(vinyl chloride), acrylonitrile-butadiene-styrene copolymer, etc. The underlayment layer is a poly(vinyl chloride) film, and is formed on the waterproof core layer. The two adhesive strips are adhered to a side of the underlayment layer of the body away from the waterproof core layer, wherein each one of the two adhesive strips is located near a respective one of two parallel sides of the body.

A high-frequency dielectric heating adhesive sheet includes: a first adhesive layer; a second adhesive layer; and an intermediate layer located between the first adhesive layer and the second adhesive layer, the first adhesive layer containing a first thermoplastic resin and a first dielectric filler configured to generate heat in response to a high-frequency wave, the second adhesive layer containing a second thermoplastic resin and a second dielectric filler configured to generate heat in response to the high-frequency wave, the intermediate layer containing no dielectric filler in response to the high-frequency wave.

A wallpaper includes a support portion having a flat surface, and a functional layer disposed on the flat surface of the support portion. The functional layer includes a metallic film and has an emissivity of greater than zero and equal to or less than 0.6. The wallpaper further includes a particulate layer disposed on the functional layer and including a polymer body and inorganic particles dispersed in the polymer body.

An electromagnetic interference shielding film includes an insulation layer, a first adhesive layer, a porous metal layer and a conductive adhesive layer including a plurality of conductive particles. The first adhesive layer is located between the insulation layer and the porous metal layer, and the porous metal layer is formed on the first adhesive layer, and making the first adhesive layer locate between the porous metal layer and the insulation layer. The conductive adhesive layer is located on the porous metal layer so that the porous metal layer is located between the first adhesive layer and the conductive adhesive layer. The present invention further provides a preparation method thereof.

A high-frequency dielectric heating adhesive contains a thermoplastic resin, in which the thermoplastic resin contains a styrene copolymer resin, an amount of the styrene copolymer resin contained in the thermoplastic resin is 40% or more by volume and 100% or less by volume, the styrene copolymer resin has a styrene monomer unit content of 10% or more by mass and 90% or less by mass, the high-frequency dielectric heating adhesive has a tensile modulus of 20 MPa or more, and the high-frequency dielectric heating adhesive has a dielectric property (tan δ/ε'r) of 0.005 or more, where tan δ is a dielectric loss tangent at 23° C. and a frequency of 40.68 MHz, and ε'r is a relative dielectric constant at 23° C. and a frequency of 40.68 MHz.

A flexible tube container comprising a side wall formed from a multi-layer polymeric material, the side wall comprising a longitudinal weld or join, the multi-layer polymeric material comprising a thickness of between 200 and 400 micrometers, said multi-layer polymeric material comprising at least one layer of virgin polyolefin based and at least one layer of post-consumer resin or recycled material, wherein the multi-layer polymeric material is produced with a step of pushing action towards the interior of the sheet with no subsequent extrusion or lamination step, and the layer of virgin polyolefin is an outermost layer.

The invention relates to a decorative panel, in particular a floor panel, wall panel or ceiling panel, the panel comprising at least one core layer comprising an upper core surface and a bottom core surface, wherein the core layer comprises a composite material comprising at least one mineral material and at least one polymer and at least one top layer comprising at least one ply of resin impregnated paper, wherein the core layer has a predetermined Vicat softening temperature and wherein the upper core surface of the core layer has a predetermined Shore D hardness such that a panel is obtained which has good waterproof- and scratch resistant properties.