Abstract: The present disclosure relates to a thermoplastic polyurethane composition for injection molding and a method for manufacturing the same. Specifically, the thermoplastic polyurethane composition includes 0.5% by weight to 10.0% by weight of a sulfonate diol, 13% by weight to 60% by weight of an isocyanate, 30% by weight to 70% by weight of an ether-containing polyester polyol, and 5% by weight to 40% by weight of a chain extender.

Abstract: A powder for an electrode for manufacturing a dry electrode for a secondary battery, including an active material, a conductive material and a binder, and showing a resistivity of 700 ?·cm or less when being pressurized under a pressure of 50 MPa. The present disclosure also relates to a method for preparing the powder for an electrode, a method for manufacturing a dry electrode using the powder for an electrode, a dry electrode, a secondary battery including the dry electrode, an energy storage apparatus.

Abstract: The present disclosure relates to a method for manufacturing a dry electrode for energy storage device, which can form a uniform insulating film on the edge part of the dry electrode and thus enables formation of a dry electrode having excellent physical properties, a dry electrode formed by this method and a secondary battery comprising the same.

Abstract: The present disclosure relates to a system for determining the shut-down temperature and melt-down temperature of a separator. The system includes a jig having a through-hole, a heating unit, a temperature sensor, a controlling unit and an air permeability-determining unit. In this manner, it is possible to provide a novel system for determining the shut-down temperature and melt-down temperature of a separator by using the air permeability (Gurly value) of the separator.

Abstract: The present disclosure relates to a system for detecting a defective porous sheet. The system includes a jig having a through-hole, a heating unit, a temperature sensor, a controlling unit, an air permeability-determining unit and a judging unit. In this manner, it is possible to provide a novel system for detecting a porous sheet, which may be a defective separator after being coated with a porous coating layer, beforehand by using the air permeability and shut-down temperature of the porous sheet itself.

Abstract: Disclosed is a method for manufacturing a dry electrode. The method includes buffing the surface of a pre-electrode film formed in a sheet-like shape to remove the surface waviness in the manufacture of an electrode film, and then carrying out a calendering process, thereby ensuring the uniformity of the electrode film thickness and electrode active material density in the electrode film. In other words, it is possible to minimize a deviation in loading amount, porosity and thickness of the electrode depending on the location, and thus to provide improved overall electrochemical performance, including improved battery life characteristics.

Abstract: Disclosed is a method for manufacturing a dry electrode. In the method, a conductive primer layer and an insulating protective layer are formed in a single step, or the insulating protective layer is formed first before an electrode active material layer is formed and after the conductive primer layer is formed. In this manner, there is no gap between the insulating protective layer and the conductive primer layer, thereby providing further improved insulation property. In addition, since the dry electrode is manufactured by laminating the current collector having the conductive primer layer and the insulating protective layer with the dry electrode film, an electrode having excellent adhesion and improved stability can be obtained advantageously.

Abstract: The present technology relates to a dry method of manufacturing a positive electrode for a lithium secondary battery, a positive electrode manufactured thereby, and a lithium secondary battery including the same. Thereby, a positive electrode including a positive electrode mixture layer with an appropriate density, and effective adhesion between the positive electrode mixture layer and the current collector may be realized.

Abstract: The optical film according to the present invention has a feature that it has excellent property of blocking UV light and exhibits high slip property and thus enables self-winding even while using an acrylic resin not containing monomers having a ring structure.

Abstract: The optical film according to the present invention has a feature that it has high adhesiveness and excellent property of blocking UV light even while using an acrylic resin having no ring structure in the main chain.

Abstract: The optical film according to the present invention has a feature that it can implement zero retardation and have high slip property and thus enabling self-winding, even while using an acrylic resin not containing monomers having a ring structure.

Abstract: The optical film according to the present invention has a feature that it has excellent property of blocking UV light and exhibits high slip property and thus enables self-winding even while using an acrylic resin not containing monomers having a ring structure.

Abstract: The optical film according to the present invention has a feature that it can implement zero retardation and have high adhesiveness to a PVA element, which is a polarizing plate, even while using an acrylic resin having no ring structure in the main chain.

Abstract: The optical film according to the present invention has a feature that it has high adhesiveness and excellent property of blocking UV light even while using an acrylic resin having no ring structure in the main chain.

Abstract: The optical film according to the present invention has a feature that it can implement zero retardation and have high slip property and thus enabling self-winding, even while using an acrylic resin not containing monomers having a ring structure.

Abstract: The present disclosure relates to a multilayer optical film including a first film layer formed of a thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of a triazine-based ultraviolet absorber; a second film layer formed of a thermoplastic acrylic resin composition including 0.1 to 5.0 parts by weight of at least one ultraviolet absorber selected from a group consisting of a triazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, an oxanilide-based ultraviolet absorber and a cyanoacrylate-based ultraviolet absorber; and a third film layer formed of the thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of the triazine-based ultraviolet absorber, with respect to 100 parts by weight of the thermoplastic acrylic resin composition, a method of manufacturing the same, and a polarizing plate including the same.

Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1 ?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1 ?m?1 in a wavelength band of 330 to 400 nm, an acrylic resin, and a hindered amine light stabilizer (HALS), and a polarizing plate including the same.

Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1?m?1 in a wavelength band of 330 to 400 nm, and acrylic resin, wherein the content of the ultraviolet light absorbent is 0.3 to 1.0 parts by weight with respect to 100 parts by weight of the acrylic resin, and a polarizing plate including the same.

Abstract: There are provided a resin composition including a particulate thermoplastic acrylic resin and a triazine-based ultraviolet (UV) absorber, a preparation method thereof, and an optical film including the same.

Abstract: Provided is a method of preparing a resin composition for an optical film. The method includes forming a four-component copolymer by reacting an alkyl(meth)acrylate-based monomer, an acrylate-based monomer containing a benzene ring, and a (meth)acrylic acid monomer by using a continuous bulk polymerization method; and forming a resin composition for an optical film by removing unreacted monomer and solvent from a reaction product in a devolatilizer.