LG Chem Patente

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An apparatus and method for designing a multilayer film is disclosed. An apparatus for designing a multilayer film may perform: modeling a multilayer film to be designed as a single layer structure having a preset thickness, collecting physical property data with respect to a film corresponding to the single layer structure, reading a value pre-stored in a storage space accessible by an apparatus for designing a multilayer film, and obtaining a feature setting mode for designating different feature setting manners depending on the read value, performing feature setting based on a plurality of physical indicators selected from the physical property data, depending on the feature setting mode, selecting at least one among a plurality of supervised learning models capable of a regression analysis as a machine learning model, predicting the dart impact strength of the multilayer film by using the machine learning model learned by taking the feature as an independent variable, and a dart impact strength of the multilayer film as a target variable, and generating design data for the multilayer film, by combining predicted values for other properties and a predicted value of the dart impact strength, so as to satisfy the design requirements of the multilayer film.

The present specification discloses a current collector. The current collector comprises a polymer layer exhibiting a so-called PTC (Positive Temperature Coefficient) effect. The polymer layer exhibits the PTC effect very precisely responding to a temperature and an external voltage. The polymer layer can quickly switch between a state exhibiting excellent electrical properties such as low resistance and a state exhibiting insulator properties due to increased resistance at a necessary time. The current collector is applied to various electronic/electrical devices, whereby in a normal state, it does not affect driving of the devices, and the like through excellent electrical properties, and in an abnormal state, it is possible to ensure stability through a rapid resistance increase.

The present specification discloses a composition and a use thereof. The composition may form a low-density layer, sheet or film having excellent delay or prevention characteristics against heat and flames, and excellent flame retardancy. Such a layer, sheet or film may be referred to as a foam sheet. The present specification also discloses the composition or the foam sheet. For example, the composition or the foam sheet is applied to a product formed by integrating a plurality of elements, whereby it is possible to effectively respond to heat or flames generated from the elements while uniformly maintaining the temperature of the product. For example, the composition or the foam sheet is applied to the product, whereby even when abnormal heat generation, explosion, or ignition occurs in one of the plurality of elements, it is possible to prevent or minimize the influence of such heat generation, explosion, or ignition on other adjacent elements.

The present invention discloses a sulfide-based solid electrolyte, which is capable of having high ionic conductivity and improving the rate performance of a battery by using three types of halogen elements and adjusting the doping concentration thereof, a method of preparing the same, and an all-solid-state battery including the same.

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The present invention provides a catalyst in the form of a core-shell, wherein the core is in the form of a secondary particle formed by agglomerating a plurality of primary particles, and the shell is formed by agglomerating a plurality of primary particles in the form of a core-shell including a primary particle and a shell layer surrounding the primary particle, and wherein the distance (a) between the primary particles forming the core, the diameter (r) of the primary particles, and the thickness (L) of the shell formed by agglomerating a plurality of primary particles in the form of a core-shell satisfy Equation 1. When the catalyst of the present invention is used in a carbon dioxide conversion reaction, the conversion rate of carbon dioxide and the selectivity for hydrocarbons with 5 or more carbon atoms, which are useful components, is high.

The present specification discloses particles. The particles can be applied to a reaction for forming hydrocarbons from a raw material including CO₂ and/or CO. The present specification is intended to disclose the particles, wherein the particles can obtain desired products with excellent selectivity and conversion ratios without causing undesirable agglomeration or sintering phenomena and deterioration of catalytic activity during reaction processes. For example, the particles can obtain hydrocarbons having 5 or more carbon atoms with high selectivity and conversion ratios in a reaction for obtaining hydrocarbons from a raw material including CO₂ and/or CO. The present specification also discloses a use of the particles.

[Summary] The present application relates to a substrate for an optical device. The present application can provide a substrate for an optical device maintaining a cell gap between an upper substrate and a lower substrate of a liquid crystal cell appropriately, having excellent attachment force between the upper substrate and the lower substrate, and having excellent visibility by improving a sparkling phenomenon and a rainbow phenomenon.

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The present invention relates to a catalyst for converting carbon dioxide, comprising a protective layer formed on the surface thereof, wherein by controlling the amount of coverage of the catalyst particle surface by the protective layer, high selectivity for high-carbon-number hydrocarbons having 5 or more carbon atoms, which have high value in carbon dioxide conversion reactions, can be achieved while maintaining the conversion rate of carbon dioxide at high levels.

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The present invention relates to a catalyst in the form of a core-shell, wherein the core is in the form of a secondary particle formed by agglomerating a plurality of primary particles, and the shell is formed by agglomerating a plurality of primary particles in the form of a core-shell including a primary particle and a shell layer surrounding the primary particle, and wherein the average diameter (r) of the primary particle forming the shell and the average thickness (l) of the shell layer surrounding the primary particle satisfy Equation 1. When the catalyst of the present invention is used in a carbon dioxide conversion reaction, the conversion rate of carbon dioxide and the selectivity for hydrocarbons with 5 or more carbon atoms, which are useful components, is high.

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