Bong Keun
Bong Keun Ahn, Daejeon KR
Patent application number | Description | Published |
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20140094556 | THERMAL STABILIZER-FREE THERMOPLASTIC RESIN COMPOSITION AND METHOD OF PREPARING THE SAME - Disclosed are a thermal stabilizer-free thermoplastic resin composition and a method of preparing the same. The thermal stabilizer-free thermoplastic resin composition has superior impact resistance, falling ball impact resistance and gloss without using a separate thermal stabilizer. Particularly, the thermal stabilizer-free thermoplastic resin composition improves production efficiency when applied to a squeezing dehydrator because the thermoplastic resin composition is prepared without using a drying process. | 04-03-2014 |
20140378576 | RUBBER POLYMER LATEX WITH MULTI-LAYER CORE-SHELL STRUCTURE, PREPARATION METHOD THEREOF AND ACRYLONITRILE-BUTADIENE-STYRENE GRAFT COPOLYMER COMPRISING THE SAME - The present invention relates to rubber polymer latex with a multi-layer core-shell structure, a method of preparing thereof, an acrylonitrile-butadiene-styrene graft copolymer comprising the same, and a thermoplastic resin composition using the same. The rubber polymer latex with a multi-layer core-shell structure has improved weather resistance while maintaining the properties of a diene-based rubber component. The impact resistance, the coloring properties and the weather resistance of the acrylonitrile-butadiene-styrene graft copolymer including the same may be improved. | 12-25-2014 |
Bong Keun Lee, Daejeon KR
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20090161221 | Multi-Layered Light Diffusion Plate and Liquid Crystal Display Device Comprising the Same - Disclosed herein is a multi-layerd light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same. | 06-25-2009 |
20100075165 | LOW SURFACE GLOSS STYRENE RESIN COMPOSITION, AND LOW SURFACE GLOSS SHEET AND COMPOSITE ARTICLE THEREFROM - The present invention relates to a low surface gloss styrene resin composition. The composition of the present invention is composed of (A) 80-99.9 weight % of the basic resin comprising rubber-modified styrene resin and (B) 0.1-20 weight % of syndiotactic polystyrene, the matting agent. The composition also includes (C) hydrogenated styrene block copolymer comprising styrene block and butadiene rubber block as a compatibilizer by 0.1-20 weight % for the total weight of the low surface gloss styrene resin composed of (A) the basic resin and (B) the matting agent and additionally includes (D) a plasticizer by 0.1-30 weight %. The composition of the present invention has excellent weatherability and impact-resistance in addition to the low surface gloss properties, so that it can be applied in various products, particularly exterior products for structures such as sidings and window frames, etc. | 03-25-2010 |
20110033695 | NANOCOMPOSITES, POLYMER COMPOSITIONS COMPRISING THE SAME AND PREPARATION METHODS THEREOF - Provided are a nanocomposite including a layered inorganic material and a random copolymer containing a hydrophobic monomer and a hydrophilic monomer, a polymer composition including the nanocomposite, and a method for preparing the polymer composition. The random copolymer can be prepared at a low cost in a simple process and function as a compatibilizer in small amounts to maintain excellent properties of the nanocomposite including excellent mechanical characteristics such as abrasion resistance, hardness, tensile modulus and tear resistance, excellent thermal characteristics, high liquid and gas permeability, and low flammability. | 02-10-2011 |
20130286325 | MULTI-LAYERED LIGHT DIFFUSION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING THE SAME - Disclosed herein is a multi-layered light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same. | 10-31-2013 |
Bong Keun Llim, Seoul KR
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20140237845 | PORTABLE CURING DEVICE FOR FINGERNAILS - There is provided a portable curing device for fingernails that dries and cures a curable material painted on fingernails or toenails by emitting ultraviolet rays to the fingernails or toenails. In a conventional ultraviolet curing device, since a volume of the ultraviolet lamps is large, it is not easy to carry, and since a size of a space into which the finger is inserted is constant, the conventional ultraviolet curing device is not variously used. In order to solve the problems, there is provided a portable curing device for fingernails including an upper member including an upper cover that prevents a battery from being separated toward the outside and forms the entire external shape, an upper body that is provided with a battery accommodating part for accommodating a rechargeable battery and a circuit board in which a plurality of ultraviolet LEDs is provided therein, and an upper body plate that is provided with a plurality of emitting holes so as to emit ultraviolet rays downward; and a lower member including a table that is provided with an opening for opening or closing doors in a left and right direction and cut-off parts at both sides of the opening so as to allow locking parts to be inserted and then protrude upward, and a lower cover that is provided with a door installation part at which the doors are positioned to be connected to a lower side of the table. Accordingly, since the portable curing device for fingernails of is designed in the form of a mobile phone, the portable curing device for fingernails can have an excellent portability and decorativeness, and it is possible to conveniently use the portable curing device for fingernails by raising the upper member through simple operating of a button and an elastic force of a spring. Further, when a plurality of fingers is cured at the same time, it is possible to arbitrarily adjust an emitting distance and space of ultraviolet rays by folding the upper member and opening the doors. | 08-28-2014 |