Abstract: The embodiments relate to an electrochromic device having excellent elongation and tensile strength while achieving an excellent light transmission variable function based on the electrochromic principle. The electrochromic device comprises a light transmission variable structure interposed between a first base layer and a second base layer, wherein the light transmission variable structure comprises a first chromic layer and a second chromic layer, an electrolyte layer is interposed between the first chromic layer and the second chromic layer, and the elongation is 60% to 170%.

Abstract: In the embodiments, an aqueous hydrochloric acid solution instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens of higher quality by controlling the water content in the diamine hydrochloride composition for preparing a diisocyanate within a specific range.

Abstract: The embodiments relate to an electrochromic device having flexibility while achieving an excellent light transmission variable function based on the electrochromic principle. The flexible electrochromic device comprises a first base layer; a first barrier layer on the first base layer; a light transmission variable structure on the first barrier layer; a second barrier layer on the light transmission variable structure; and a second base layer on the second barrier layer.

Abstract: The embodiments relate to an electrochromic device having flexibility while achieving an excellent light transmission variable function based on the electrochromic principle. The electrochromic device comprises a light transmission variable structure interposed between a first base layer and a second base layer, wherein the light transmission variable structure comprises a first chromic layer and a second chromic layer, and the value of ?TTd24 as defined in Equation (1) is 3% or less.

Abstract: A pad assembly for power reception of an electric vehicle includes a receiving pad configured to support a receiving coil connected to an external component, and a magnetic complex layer disposed above or below the receiving coil. An increment in inductance per unit density of the magnetic complex layer disposed above or below the receiving coil is 25%·cm3/g or more compared to an increment in inductance per unit density of the magnetic complex layer alone not disposed above or below the receiving coil.

Abstract: A diamine composition comprising a benzylmonoamine having a methyl group in an amount of 10 ppm to 2,000 ppm in the composition and use thereof for the preparation of a diisocyanate composition and an optical material. A process for preparing a diisocyanate composition wherein the b* value according to the CIE color coordinate of the diamine composition is adjusted to a specific range, whereby the yield and purity of the diisocyanate composition and the optical characteristics of the final optical lens are enhanced. Use of the process for the diisocyanate composition for preparing a plastic optical lens of high quality.

Abstract: An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.

Abstract: An embodiment relates to a multilayer graphite sheet with excellent electromagnetic shielding capability and thermal conductivity, and a manufacturing method therefor, wherein the multilayer graphite sheet has a multilayer structure of five or more layers in total and can be manufactured to have a thick thickness of 70 ?m or more such that the electromagnetic shielding capability can be significantly improved. In addition, the multilayer graphite sheet is manufactured by graphitizing a hybrid laminate in which heterogeneous materials are mixed such that thermal conductivity and electromagnetic shielding capability can be simultaneously realized at a lower cost, thereby being useful as a thick film sheet which used in various applications such as home appliances and electric vehicles.

Abstract: The embodiments relate to an electrochromic device having flexibility while achieving an excellent light transmission adjusting function based on the electrochromic principle. The electrochromic device comprises a light transmission variable structure interposed between a first base layer and a second base layer, wherein the light transmission variable structure comprises a first chromic layer and a second chromic layer, the first chromic layer comprises a reducing chromic material, the second chromic layer comprises an oxidizing chromic material, and the value of c as defined in Equation 1 is 1.0 to 1.6.

Abstract: In the embodiments, an aqueous hydrochloric acid solution instead of hydrogen chloride gas and solid triphosgene instead of phosgene gas may be used in the process of preparing a diisocyanate from a diamine through a diamine hydrochloride. In addition, the embodiments provide processes for preparing a diisocyanate composition and an optical lens of high quality in which the content of water, the content of cations, or the content of an aromatic compound containing 3 or more of chlorine (Cl) in the organic solvent used in the reaction of a diamine hydrochloride composition and triphosgene is adjusted to a specific range.

Abstract: A film, a manufacturing method of the film, a cover film, and a multi-layered electronic device include an elastic layer having a storage modulus index KSM of 20 to 350 Mpa represented by Equation 1 below and a haze of 3% or less, thereby providing the film having substantially low storage modulus variations over a wide temperature range, with good mechanical properties such as excellent elastic recovery force and good optical properties such as low haze, and provide the cover film or the multi-layered electronic device including the same. K SM = ( SM - 40 × SM 80 SM 20 ) - SM 80 [ Equation ? 1 ] Where SMn is a storage modulus (Mpa) measured at a temperature of n° C.

Abstract: According to an embodiment, the pH of a diisocyanate composition and a diamine hydrochloride composition used in the preparation of an optical lens is adjusted to a specific range, whereby it is possible to enhance not only the yield and purity of the diisocyanate composition but also the optical characteristics of the final optical lens by suppressing the striae and cloudiness. Specifically, according to the process of the embodiment, the amount of an aqueous hydrochloric acid solution introduced to the reaction may be adjusted to control the pH of the diisocyanate composition to a desired range, thereby enhancing the yield and purity. Accordingly, the process for preparing a diisocyanate composition according to the embodiment can be applied to the preparation of a plastic optical lens of high quality.

Abstract: A film for laminating glass includes a first surface layer, a second surface layer opposite the first surface layer, and an interlayer disposed between the first surface layer and the second surface layer, wherein the interlayer includes a trioxane-based compound.

Abstract: The present disclosure discloses a film including a polyimide layer including an aromatic diamine compound residue and an aromatic dianhydride compound residue, wherein the polyimide layer has a loop stiffness value of 3 to 4.5 m/N based on a thickness of the polyimide layer of 50 ?m.

Abstract: An embodiment relates to an isocyanate composition with improved stability and reactivity and a plastic optical lens using the same. The isocyanate composition has improved stability since the content of chlorine in the composition is adjusted to 22-500 ppm, and thus the isocyanate composition can prevent the deterioration in reactivity even in the long-term storage. Therefore, the isocyanate composition according to an example, even when used after long-term storage after preparation, can be prepared, through polymerization with a thiol-based compound, as a polythiourethane-based optical material with excellent physical properties, such as refractive index, Abbe number, transparency, glass transition temperature, and yellowness, and thus the isocyanate composition is useful in fields of glass lenses, a camera lens, and the like.

Abstract: The plastic intermediate film includes a sound insulating layer, wherein the sound insulating layer comprises a polyvinyl acetal resin, a plasticizer, and a refractive index regulator, wherein the refractive index regulator is particles with average diameter (D50) of 100 nm or less and has an absolute refractive index of 2.0 or more, wherein the refractive index regulator is comprised in an amount of more than 0 wt % and 1 wt % or less based on the entire sound insulating layer, and wherein the plasticizer is comprised in an amount of 33 to 41 wt % based on the entire sound insulating layer.

Abstract: A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.

Abstract: The embodiments provide processes for preparing a diisocyanate composition and an optical lens, which are excellent in yield and quality with mitigated environmental problems by using a solid triphosgene composition instead of phosgene gas in the process of preparing a diisocyanate from a diamine through a hydrochloride thereof and by controlling the content of a decomposition product in a triphosgene composition, the b* value according to CIE color coordinate of the triphosgene composition in an organic solvent, or the content of water in the triphosgene.

Abstract: The polyester film according to an embodiment has a coefficient of determination (R2) of the strain with respect to stress and a crystallinity adjusted to specific ranges, whereby it is possible to achieve the flexibility that does not cause deformation even when a certain stress is sustained for a long period of time and the resistant characteristics to the impact of external pressing. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.

Abstract: Embodiment relates to film for bonding, and a light-transmitting laminate including the same and the like, a film for bonding comprising an embossed surface, wherein the embossed surface has an A2/A1 value of 1 or less are disclosed. A film for bonding have improved in deairing stability during formation of a light transmitting laminate, an edge sealing characteristic, and the like by controlling characteristics of a embossed surface.