Abstract: Provided is a glass substrate heat chamfering method. An edge of a glass substrate (100) is chamfered by applying thermal shock to the edge of the glass substrate (100), thereby peeling a strip (100a) off from the edge of the glass substrate (100). The strip is cut at a predetermined point thereon before being broken due to the weight thereof. The strip (100a) is cut by applying at least one of heat and a laser beam to the predetermined point or by applying a flame (300a) of a torch (300) to the predetermined point. The application of the thermal shock includes brining a heating element (210) into contact with the edge of the glass substrate (100). In the chamfering, the heating element (210) is relatively moved along the edge of the glass substrate (100) while being brought into contact with the edge of the glass substrate (100).

Abstract: The composite according to the present invention comprises: a mesoporous inorganic support having vacancy defects; and metal alloy nanoparticles dispersed in and bound to the mesoporous inorganic support and containing a precious metal element and an earth rare element. The composite according to the present invention has a very high specific surface area since the alloy is dispersed and present in the form of ultrafine nanoparticles in the porous support, and thus can show remarkably improved activity when used as a material for a chemical reaction, including a catalyst.

Abstract: A method of fabricating a light guide plate (LGP), an LGP fabricated thereby, and an illumination device having the same. The method includes preparing an LGP and fabricating a light-scattering layer by printing a printing solution including light-scattering particles on an overall bottom surface of the LGP. The light-scattering layer may be fabricated by at least one of a first method of controlling the printing such that the density of the light-scattering particles gradually increases with increases in a distance from the light-emitting diode facing a side surface of the LGP and a second method of controlling the printing such that the thickness of the light-scattering layer gradually increases with increases in the distance from the light-emitting diode. A luminous point through can be prevented from being viewed by a front observer, a process can be simplified, and light distribution similar to Lambertian distribution can be obtained.

Abstract: A method of fabricating a light guide plate (LGP), an LGP fabricated thereby, and an illumination device having the same. The method includes preparing an LGP and fabricating a light-scattering layer by printing a printing solution including light-scattering particles on an overall bottom surface of the LGP. The light-scattering layer may be fabricated by at least one of a first method of controlling the printing such that the density of the light-scattering particles gradually increases with increases in a distance from the light-emitting diode facing a side surface of the LGP and a second method of controlling the printing such that the thickness of the light-scattering layer gradually increases with increases in the distance from the light-emitting diode. A luminous point through can be prevented from being viewed by a front observer, a process can be simplified, and light distribution similar to Lambertian distribution can be obtained.

Abstract: The present invention relates to a novel zeolite or zeolite-like material synthesized using a zeolite synthesis composition comprising a specifically designed organic surfactant, wherein the zeolite or zeolite-like material comprises a crystalline framework having a thickness corresponding to up to 10 single unit cells along at least one axis, and 2-50 nm mesopores formed by organic assembly of the crystalline framework are regularly or irregularly arranged in the zeolite or zeolite-like material. In addition, the present invention presents a micro-mesoporous molecular sieve material activated or functionalized by dealumination, ion exchange or other post-treatment processes, and a method of using the molecular sieve material as a catalyst. The disclosed novel materials have a significantly increased outer surface area and pore volume due to a combination of micropores and mesopores, and thus show an increased diffusion of molecules therein.

Abstract: The present invention relates to microporous molecular sieve materials and their analogue molecular sieve materials having a crystalline unilamellar or multilamellar framework with a single unit cell thickness in which layers are aligned regularly or randomly, the molecular sieve materials being synthesized by adding an organic surfactant to the synthesis composition of zeolite. In addition, the present invention relates to micro-mesoporous molecular sieve materials activated or functionalized by dealumination, ion exchange or other post treatments, and the use thereof as catalyst. These novel materials have dramatically increased external surface area by virtue of their framework with nano-scale thickness, and thus exhibit improved molecular diffusion, and thus have much higher activities as catalyst and ion exchange resin than conventional zeolites.

Abstract: An optical filter provided in front of a display panel of a display device includes a background layer and a color shift-reducing pattern formed to a predetermined thickness at the background layer. The color shift-reducing pattern includes a plurality of pattern elements spaced apart from each other. At least two pattern elements of the plurality of pattern elements have different light absorptivities and/or light diffusivities. The at least two pattern elements may contain different amounts of a light-absorbing material that cause the different light-absorptivities and/or different amounts of a light-diffusing material that cause the different light diffusivities. The plurality of pattern elements may form a group of first pattern elements and a group of second pattern elements. Only the group of first pattern elements may contain the light-absorbing material, and only the group of second pattern elements may contain the light-diffusing material.

Abstract: The present invention relates to a method of preparing a microporous crystalline molecular sieve having mesoporous skeleton, comprising following steps: (a) adding a meso-SDA (meso-Structure Directing Agent) into a gel composition of synthesizing molecular sieve, (b) subjecting the mixture obtained in the above step (a) to crystallization by a hydrothermal reaction, a microwave reaction, a dry-gel synthesis, etc., and (c) removing selectively organic materials from the resulted material obtained in the above step (b) by a calcination or a chemical treatment. Molecular sieve having mesoporous skeleton synthesized by the present invention exhibits, as compared with conventional zeolite, a good molecule diffusion ability and a greatly improved catalytic activity.

Abstract: The present invention relates to a method of preparing a microporous crystalline molecular sieve Inorganic gel having mesoporous skeleton, comprising following steps: (a) adding a meso-SDA (meso-Structure Directing Agent) into a gel composition of synthesizing molecular sieve, (b) subjecting the mixture obtained in the above step (a) to crystallization by a hydrothermal reaction, a microwave reaction, a dry-gel synthesis, etc., and (c) removing selectively organic materials from the resulted material obtained in the above step (b) by a calcination or a chemical treatment. Molecular sieve having mesoporous skeleton synthesized by the present invention exhibits, as compared with conventional zeolite, a good molecule diffusion ability and a greatly improved catalytic activity.

Abstract: Provided are a nanoporous organic polymer and preparation method thereof, and its application for catalyst. More particularly, provided is a nanoporous organic polymer composite comprising a mesoporous molecular sieve having micropores within mesopore walls, and an organic polymer impregnated within the micropores of the molecular sieve and coated on the wall surfaces of the molecular sieve. Also, provided is a method for preparing a nanoporous organic polymer composite comprising preparing a mesoporous molecular sieve having micropores within mesopore walls; impregnating an organic monomer diluted in solvent into the molecular sieve; and polymerizing the molecular sieve impregnated with the organic monomers to form organic polymers within the micropores and on the wall surfaces of the mesoporous molecular sieves. Further, provided are properties of catalytic reaction of the material as applicable representative examples of the nanoporous organic polymer.

Abstract: Provided are a nanoporous organic polymer and preparation method thereof, and its application for catalyst. More particularly, provided is a nanoporous organic polymer composite comprising a mesoporous molecular sieve having micropores within mesopore walls, and an organic polymer impregnated within the micropores of the molecular sieve and coated on the wall surfaces of the molecular sieve. Also, provided is a method for preparing a nanoporous organic polymer composite comprising preparing a mesoporous molecular sieve having micropores within mesopore walls; impregnating an organic monomer diluted in solvent into the molecular sieve; and polymerizing the molecular sieve impregnated with the organic monomers to form organic polymers within the micropores and on the wall surfaces of the mesoporous molecular sieves. Further, provided are properties of catalytic reaction of the material as applicable representative examples of the nanoporous organic polymer.

Abstract: Disclosed is a carbon molecular sieve material. It is prepared by a method comprising the step of adsorbing a mixture of an aqueous carbohydrate solution and an acid or a polymer precursor into pores of an inorganic molecular sieve material; drying and polymerizing the adsorbates; re-adsorbing a mixture of an aqueous carbohydrate solution and an acid or a polymer precursor onto the resultant mixture obtained in the previous steps, and drying and polymerizing the adsorbates; carbonizing the adsorbates through thermal decomposition; and removing the framework of the inorganic molecular sieve from the carbonized adsorbates by use of a fluoric acid or a sodium hydroxide solution. With uniformity in pore size and regularity in structure, the carbon molecular sieve is suitable for use in catalysts, adsorbents, supports, sensors, electrodes, etc.

Abstract: The present invention provides a carbon molecular sieve prepared by forming carbon nanorods or carbon nanotubes with a uniform diameter inside pores of siliceous mesoporous molecular sieve and a process for preparing the same. The process for preparing a carbon molecular sieve of the present invention comprises the steps of; adsorbing a mixture of an aqueous carbohydrate solution and an acid or a precursor of carbon polymer into pores of mesoporous silica molecular sieve template, and polymerizing; heating the mesoporous molecular sieve including polymeric material at 400 to 1400° C. under vacuum condition or without oxygen to accomplish thermal decomposition of the polymeric material included in the pores; and, reacting the heated mesoporous molecular sieve with hydrofluoric acid or aqueous sodium hydroxide solution and removing the template to obtain a carbon molecular sieve.

Abstract: Noncrystalline mesoporous molecular sieve substances are prepared using alkyltrimethylammonium halide as a surfactant in combination with water-soluble organic or inorganic salts capable of binding to a monovalent cation. The sieve substances are superior to the M41S series in thermal stability and hydrothermal stability. The sieve substances are structurized in such a manner that channels uniform in diameter are randomly arranged interconnecting with one another in a three-dimensional way so as to allow reactants to readily diffuse therein.

Abstract: Mesoporous molecular sieve substances having a structure exhibiting a hexagonal arrangement of straight channels uniform in diameter, superior over MCM-41 substances of Mobil Co. in thermal stability and hydrothermal stability, can be prepared by the methods characterized in using various organic or inorganic salts.