Multilayer films and adhesive tapes that include such films, wherein the multilayer films include plasticized polyvinyl chloride and optionally one or more fillers.

A multilayer material, including a compressible polymer foam layer, wherein the compressible polymer foam layer has a density of less than 400 kg/m.sup.3, a compression force deflection of 5 to 1,035 kPa at 25% deflection determined in accordance with ASTM D3574-17, and a thickness of less than 3.5 millimeters; and a solid, polymeric flame retardant layer disposed on a first side of the compressible polymer foam layer, wherein the flame retardant layer has a thickness of less than 0.3 millimeters, wherein the thickness of the compressible polymer foam layer is at least two times greater than the thickness of the flame retardant layer; wherein each of the compressible polymer foam layer and the flame retardant layer includes a flame retardant composition, and wherein the multilayer material has a thickness of 3.5 millimeters or less, and a UL-94 rating of V1, preferably V0, HF1, or a combination thereof.

A product with absorbed gel leaving the exposed surface of such product free of stickiness and/or free of the release of oils in any appreciable amounts.

A laminate of the present invention is a laminate with a sheet shape for vacuum forming, pressure forming, or warm forming that includes an inner layer and paired outer layers layered on the respective opposite sides of the inner layer. The inner layer contains an inorganic filler and a thermoplastic resin. The outer layers contains a thermoplastic resin. The inorganic filler contains calcium carbonate particles. The inorganic filler has a percentage content of greater than 50.0% by mass in the laminate. The outer layers each have a thickness at a ratio to the total thickness of the laminate of at least 2.0% and no greater than 20.0%. The total thickness of the laminate is at least 300 μm and no greater than 450 μm. The maximum particle diameter of the calcium carbonate particles is no greater than 20 μm.

Described herein is an antiviral face mask and methods of use thereof to inactivate a virus in contact with the face mask. The face mask may include a fibrous material with silicon nitride powder impregnated therein and a layer surrounding the fibrous material. In some embodiments, silicon nitride is present in the fibrous material at a concentration of about 30 wt. % to about 50 wt. %.

A radiative cooling fabric comprises a flexible substrate layer and a functional layer stacked in order. The first functional layer comprises a first functional resin and a first functional filler dispersed in the first functional resin. A mass fraction of the first functional filler in the first functional layer is in a range of 1% to 20%. An emissivity of the radiative cooling fabrics in the wavelength of 7 μm to 14 μm is not less than 80%. A reflectivity of the radiative cooling fabrics in the wavelength of 300 nm to 2500 nm is not less than 80%. An average value of warp recovery angles of the radiative cooling fabrics is greater than or equal to 95°, and an average value of the weft recovery angles of the radiative cooling fabrics is greater than or equal to 91°.

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.

An object of the present invention is to provide a piezoelectric polymer film having excellent piezoelectric characteristics. The object is achieved by providing a piezoelectric polymer film including a piezoelectric layer containing lead zirconate titanate particles in a matrix that contains a polymer material, and an electrode layer provided on each of both surfaces of the piezoelectric layer, in which a Raman shift of a maximum peak present in a range of 190 to 215 cm.sup.−1 in a Raman spectrum of the piezoelectric layer is 205 cm.sup.−1 or less.

An interlayer film for laminated glass is an interlayer film for laminated glass, the interlayer film having a structure of one or two or more layers, and comprising a first layer comprising a thermoplastic resin and a silica particle, in which the silica particle has an average secondary particle size (d50) of 0.01 μm or more and 2.2 μm or less and a maximum particle size peak value of 20 μm or less.

An object of the present invention is to provide a technique capable of reducing the hydrolysis of a biodegradable resin at the time of molding with respect to a biodegradable resin-containing resin composition having a high water content. Provided is a resin composition comprising: a biodegradable resin and heavy calcium carbonate particles in a mass ratio of 50:50 to 10:90, in which 0.5% by mass or more and 3.5% by mass or less of calcium oxide is comprised relative to the resin composition, and 0.2% by mass or more of water is comprised relative to the resin composition.