The present disclosure relates to a cover window and a flexible display device including the same. The cover window according to an exemplary embodiment of the present disclosure includes a first layer having a first modulus, a second layer disposed on the first layer and having a second modulus smaller than the first modulus, and a third layer disposed on the second layer and having a third modulus equal to or larger than the first modulus, and in which the third layer includes a nanoparticle-polyurethane complex in which polyurethane is bonded with nanoparticles by a covalent bond. Therefore, the cover window of the present disclosure provides effects that the folding and rolling are possible with excellent surface characteristic and the restorability against the pressing and excellent optical property.

A method of forming a skin-foam-substrate type structure particular suitable as an automobile trim component. The method comprises supplying a polymer resin containing a chemical foaming agent and including metal particles capable of inductive heating, that is positioned between a polymeric skin and substrate, followed by inductive heating to cause foaming of the polymeric resin. The foamed polymer resin adheres to the skin and substrate.

A method of forming a skin-foam-substrate type structure particular suitable as an automobile trim component. The method comprises supplying a polymer resin containing a chemical foaming agent and including metal particles capable of inductive heating, that is positioned between a polymeric skin and substrate, followed by inductive heating to cause foaming of the polymeric resin. The foamed polymer resin adheres to the skin and substrate.

A method for forming an antislip material. A flexible thermoplastic carrier is provided. A hot release surface is provided. Provided is a first layer of discrete thermoplastic particles, sitting on the hot release surface. The discrete particles are above their softening temperatures, providing in the first layer a tackiness. The method includes contacting the carrier with the tacky first layer for sticking the first layer to the carrier, and thereafter removing the carrier, and therewith the tacky first layer stuck to the carrier, from the release surface. Thereby the carrier is provided with a hot, preferably discontinuous and/or elastomeric antislip coating. With a heat energy of the hot coating a bond is formed between the carrier and the coating. The removing of the carrier includes pulling the carrier out of the contact with a pulling-out force. The temperature of the hot release surface is above the melting temperature of the carrier. The carrier would be spoiled, if heated completely to the temperature of the release surface and simultaneously pulled with the pulling-out force. Therefore the contacting time is kept shorter than a minimum time required by a heat of the hot release surface for spoiling the carrier. Flat-topped roughening projections can be included in the antislip coating.

Provided is a catalyst device for a lead-acid battery, the catalyst device being capable of reducing gas release from an electrolyte solution and a decrease in electrolyte solution due to the leakage, thus providing a lead-acid battery having a long life, and being capable of ensuring safety even in excessive flow of gas. Also provided is a lead-acid battery including the catalyst device. A catalyst device for a lead-acid battery, including: a catalyst layer including a catalyst to accelerate a reaction for generating water or water vapor from oxygen and hydrogen; and a porous membrane including thermoplastic resin having a melting point or a glass transition temperature of 160° C. or less, and wherein at least one surface of the catalyst layer is in contact with the porous membrane, and the porous membrane has a planar size being equal to or greater than that of the catalyst layer. Also a lead-acid battery including the catalyst device.

The invention relates to a floor underlayment comprising a first layer, a second layer, and an inner layer between the first layer and the second layer, wherein the inner layer has one layer of foam beads, and the floor underlayment has a thickness from 0.8 mm to 1.5 mm. The invention further relates to a method for manufacturing a floor underlayment, a flooring system and a use of a floor underlayment.

The invention relates to a floor underlayment comprising a first layer, a second layer, and an inner layer between the first layer and the second layer, wherein the inner layer has one layer of foam beads, and the floor underlayment has a thickness from 0.8 mm to 1.5 mm. The invention further relates to a method for manufacturing a floor underlayment, a flooring system and a use of a floor underlayment.

In a magnetic shield material comprising a magnetic layer containing a magnetic material and an electrically conductive layer containing an electrically conductive material, the electrically conductive layer is designed to have a thickness corresponding to a frequency band of electromagnetic wave to be shielded. More specifically, the thickness of the electrically conductive layer (thickness of the aluminum foil in the drawing) is designed to have a thickness to maximize magnetic field shield effect of the magnetic shield material (thickness of the aluminum foil corresponding to peak value frequency in curve E in the drawing) in a frequency band of electromagnetic wave to be shielded. This makes it possible to obtain good magnetic field shield effect of the magnetic shield material in the frequency band of electromagnetic wave to be shielded.

A coated cutting tool includes a substrate and a coating of one of more layers. The coating includes a layer of α-Al.sub.2O.sub.3 of a thickness of 1-20 μm deposited by chemical vapour deposition (CVD). The α-Al.sub.2O.sub.3 layer exhibits an X-ray diffraction pattern and wherein the texture coefficient TC(h k 1) is defined according to the Harris formula, wherein 1<TC(0 2 4)<4 and 3<TC(0 0 12)<6.

A fixing belt includes a substrate layer inducting a first base resin and a first thermally conductive filler dispersed in the first base resin; and a release layer provided on the substrate layer, wherein the first base resin includes at least one selected from a polyimide, a polyamide, and a polyamideimide and the first thermally conductive filler includes at least one selected from carbon black, graphite, boron nitride (BN), carbon nanotubes (CNTs), and carbon fibers, and the substrate layer has a thermal conductivity in a thickness direction of about 1.5 W/m.Math.K or more.