In the present invention, there is provided a laminate having a substrate, a primer layer, and an adhesive layer, in which the primer layer is formed from a resin composition comprising an urethane resin (A) having a glass transition temperature of 0 C. or less and water, and in which the adhesive layer is formed from a moisture-curable polyurethane hot-melt resin composition. Further, in the invention, a sash having a decorative sheet on the adhesive layer of the laminate is provided. The urethane resin (A) preferably uses a polyester polyol as a raw material. The substrate is preferably polyvinyl chloride. The laminate of the invention has excellent adhesive strength.

A pressure sensitive adhesive sheet, including a laminate of: a substrate; and a pressure sensitive adhesive layer, where the substrate is formable by irradiating a resin film including a polymer and a hydrogen abstraction type photoinitiator with an energy ray, where the hydrogen abstraction type photoinitiator is capable of abstracting a hydrogen from the polymer, the pressure sensitive adhesive layer is formable by irradiating an energy ray-crosslinkable pressure sensitive adhesive composition layer including an energy ray-crosslinkable pressure sensitive adhesive composition with an energy ray, and the laminate of the substrate and the pressure sensitive adhesive layer is formed by irradiating a laminate of the resin film and the energy ray-crosslinkable pressure sensitive adhesive composition layer with an energy ray.

The present application provides a battery diaphragm, including: a porous substrate and an adhesive layer formed on the side of the porous substrate. The adhesive layer includes a polymer material with an adhesive property. The adhesive layer has a coating coefficient C. The coating coefficient C is equal to a ratio of the adhesive strength A of the adhesive layer to a value P of an increase in gas permeability per unit coating thickness of the adhesive layer. A relation C=A/P is satisfied. The coating coefficient C has a ratio in a range of 0.3<C<1. The adhesive strength A of the adhesive layer has a unit of N/m. The value P of the increase in the gas permeability per unit coating thickness of the adhesive layer has a unit of s/100 cc/m.

A composition includes particular amounts of a first solvent selected from benzaldehyde, 1,3-dioxolane, tetrahydropy-ran, 4-picoline, ethyl benzoate, methyl benzoate, or a combination thereof; a second solvent selected from cyclic ketones, aliphatic ketones, methyl acetate, dimethyl carbonate, tert-butyl acetate, propylene carbonate, PCBTF, ethyl acetate, 1,2-butylene oxide, anisole, dimethyl acetamide (DMA), pyridine, dimethyl maleate, dimethyl sulfide, triethyl phosphate, pyrrolidine, 1-vinyl-2-pyrrolidinone, 2-pyrrolidinone, thioacetic acid, N, N diethyl formamide, n-methyl pyrrole, 2-methyl pyrazine, ethyl iodide, dimethyl sulfoxide (DMSO), or a combination thereof. The solvent composition can be particularly useful in adhesive formulations such as solvent cements.

The present disclosure relates to a dielectric substrate that may include a first fluoropolymer based adhesive layer, a polyimide layer overlying the fluoropolymer based adhesive layer, and a first filled polymer layer overlying the polyimide layer. The first filled polymer layer may include a resin matrix component, and a first ceramic filler component. The first ceramic filler component may include a first filler material. The first filler material may further have a mean particle size of at not greater than about 10 microns.

The present invention relates to a polymeric composition comprising a first polymer component C being selected from TFE/PAVE polymers comprising a small amount of chlorinated monomers selected from chlorotrifluoroethylene and dichlorodifluoroethylene and a second optional polymer component D being selected from TFE/PAVE polymers and being free from chlorine. The polymeric composition of the invention is characterized in that it has a total Cl content of from 0.01 to 0.25% by weight. The composition of the invention has very good adhesion on metals and plastics despite a very low total level of chlorine.

This invention relates to an aqueous flame retardant adhesive composition that is environment-friendly, reduces cost through replacement of organic flame retardant, improves layer separation of adhesive according to the addition of inorganic flame retardant, and exhibits excellent adhesive strength, low temperature stability, processability and extraction resistance, and a method for preparing the same.

A high-permeability adhesive tape, a preparation method therefor and application thereof are provided. The adhesive tape includes a laminated porous substrate and an adhesive layer; the porous substrate has a thickness of 5-50 m and an air permeability of 50-450 s/100 mL, and the porous substrate comprises at least one of a porous separator or nonwoven fabric; the discontinuous adhesive layer is formed by coating a thermoplastic coating solution onto at least one surface of the porous substrate; and the thermoplastic coating solution is an aqueous coating solution or a solvent-based coating solution, including an olefin polymer and optionally a tackifying resin; the adhesive tape has an initial air permeability of P.sub.12.5P.sub.0, where P.sub.0 represents the air permeability of the porous substrate; after high-temperature aging, the adhesive tape has an air permeability of P.sub.24.0P.sub.1; and after electrolyte immersion, the adhesive tape has an air permeability of P.sub.31.2P.sub.1.

A hot-melt composition is provided. The hot-melt composition includes thermoplastic polyurethane (TPU) and polyvinylchloride (PVC), the weight ratio of TPU over PVC is in the range of 50/50 to 95/5, and the TPU and PVC together forms at least 50% w of the composition.

To provide a laminate excellent in stretchability and solvent resistance. A laminate comprising a base film and a clear layer, wherein the clear layer is a layer formed by curing a composition containing a fluorinated polymer having hydroxy or carboxy groups, a non-fluorinated polymer, and a curing agent having functional groups that react with the hydroxy or carboxy groups, and the hydroxy value or acid value of the fluorinated polymer is at least 20 mgKOH/g, and the content of the fluorinated polymer is at most 30 mass % to the total content of the fluorinated polymer and the non-fluorinated polymer.