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Chang Min Hong, Uiwang-Si KR

Chang Min Hong, Uiwang-Si KR

Patent application numberDescriptionPublished
20080268322Composition for Fuel Cell Bipolar Plate - Disclosed herein is a composition suitable for use in the production of a fuel cell bipolar plate having improved electrical conductivity and mechanical strength. The composition for a fuel cell bipolar plate can include about 100 parts by weight of a basic resin composition including about 10 to about 50 parts by weight of polyphenylene sulfide as a thermoplastic resin and about 50 to 90 parts by weight of a conductive filler and about 0.01 to about 30 parts by weight of a disulfide compound. The composition can improve impregnation of the conductive filler into the thermoplastic resin.10-30-2008
20090264570Heat-Conductive Resin Composition and Plastic Article Including the Same - A thermal-conductive resin composition and a plastic article are provided. The thermal-conductive resin composition comprises about 30 to about 60% by weight of a thermoplastic resin and about 40 to about 70% by weight of a thermal-conductive filler comprising about 10% by weight or more of a thermal-conductive filler with a height-to-length ratio (length/height) of about 7,000 to about 40,000 and about 10% by weight or more of a thermal-conductive filler with a height-to-length ratio of about 10 to about 1,000.10-22-2009
20090275683Flame Retardant Thermoplastic Resin Composition - Disclosed is a flame retardant thermoplastic resin composition that includes about 100 parts by weight of a mixed resin (A) including about 10 to about 90 wt % of an aromatic polyamide resin (A-1) and about 10 to about 90 wt % of a polyphenylene sulfide resin (A-2), about 0.5 to about 30 parts by weight of a phosphinic acid metal salt flame retardant (B), and about 10 to about 100 parts by weight of a filler (C).11-05-2009
20090317666Hydrophilic Carbon Black Aggregate, A Method for Preparing the Same, Hydrophilic Composite Material and Bipolar Plate for Fuel Cell Comprising the Same - Disclosed herein are a hydrophilic carbon black aggregate, a method for preparing the same, and a hydrophilic composite and a fuel cell bipolar plate, each comprising the same. The hydrophilic carbon black aggregate comprises hybrid particles having a structure in which hydrophilic inorganic particles are embedded on the surface of carbon black particles.12-24-2009
20100035094Hydrophilic Inorganic Aggregate, A Method for Preparing the Same, Hydrophilic Composite Material and Bipolar Plate for Fuel Cell Comprising the Same - Disclosed herein are a hydrophilic inorganic aggregate, a method for preparing the same, and a hydrophilic composite and a fuel cell bipolar plate, each comprising the same. The hydrophilic inorganic aggregate comprises hybrid particles in which carbon black particles are embedded on the surface of hydrophilic inorganic particles.02-11-2010
20100140534EMI/RFI Shielding Resin Composite Material and Molded Product Made Using the Same - Disclosed is an electromagnetic wave EMI/RFI shielding resin composite material that includes a thermoplastic polymer resin, an electrically conductive filler having a polyhedral shape or being capable of forming a polyhedral shape, and a low-melting point metal, and a molded product made using the EMI/RFI shielding resin composite material.06-10-2010
20100140565EMI/RFI Shielding Resin Composite Material and Molded Product Made Using the Same - Disclosed is an electromagnetic wave interference (EMI)/radio frequency interference (RFI) shielding resin composite material including (A) a thermoplastic polymer resin, (B) a tetrapod whisker, and (C) a low melting point metal.06-10-2010
20100152320Thermoplastic Elastomer Composition - A thermoplastic elastomer composition comprises (A) about 25 to about 55 parts by weight of a block terpolymer including an aromatic vinyl compound and an alkene compound; (B) about 20 to about 50 parts by weight of a paraffin oil; (C) about 5 to about 15 parts by weight of a polyolefin resin; (D) about 5 to about 20 parts by weight of an inorganic additive; and (E) about 3 to about 15 parts by weight of a polyphenylene ether. The thermoplastic elastomer composition can have excellent physical properties, such as flexibility (or resilience), surface hardness, and restoring force at high temperatures.06-17-2010
20100158787Method of Preparing Metal Carbide and Metal Carbide Prepared Using the Same - Disclosed is a method of preparing metal carbide including: applying physical force to a mixture of metal or metal oxide with carbonaceous material to provide a hybrid particle in which the carbonaceous material is filled inside the metal or metal oxide, or the carbonaceous material is coated onto the surface of the metal or metal oxide or the metal or metal oxide is filled inside the carbonaceous material, or the metal or metal oxide is coated onto the surface of the carbonaceous material and heating the hybrid particle; and a metal carbide prepared therefrom.06-24-2010
20100197827Method of Manufacturing Polycarbonate/Polyester Resin Composition and Composition Manufactured Therefrom - A method for preparing a polycarbonate/polyester alloy resin composition having excellent rigidity (flexural strength) and impact resistance strength is disclosed. The method includes adding a long fiber filler to a polyester resin to form a master batch, and blending the master batch and a polycarbonate resin. A polycarbonate/polyester alloy resin composition prepared by the method exhibits high rigidity and impact strength. Thus, the resin composition can be effectively used in the production of various molded articles such as mobile communication equipment, electric and electronic parts, and the like.08-05-2010
20100204380Thermally Conductive Polymer Composites and Articles Made Using the Same - A thermally conductive polymer composite that can have excellent thermal conductivity with a low content of a metal filler and capable of reinforcing mechanical strength by effectively compositing a thermally conductive filler is provided. The polymer composite includes 30 to 85% by volume of a crystalline polymer resin, 5 to 69% by volume of mixed metal fillers, and 1 to 10% by volume of a low-melting-point metal.08-12-2010
20100324188Fiber Reinforced Nylon Composition - The present invention relates to a fiber reinforced nylon composition, wherein the composition includes (A) 25 to 75 parts by weight of a polyarylamide resin, (B) 25 to 75 parts by weight of a reinforcing fiber having a cross-sectional aspect ratio of 1.5 or more, and (C) an impact modifier, and the impact modifier is included in an amount of 1 to 10 parts by weight based on 100 parts by weight of a mixture of the polyarylamide resin and the reinforced fiber. According to the present invention, the fiber reinforced nylonresin composition may exhibit minimal or no warpage, can have excellent fluidity and impact resistance, and can provide high whiteness and a glossy-coating due to minimal or no surface change after dipping in boiling water.12-23-2010
20110071246Polycarbonate Resin Composition and Preparation Method Thereof - A polycarbonate resin composition with excellent rigidity (flexural strength) and impact resistance, and a method of preparing the same are disclosed. The polycarbonate resin composition includes 1 to 70 parts by weight of a filament filler of 5˜30 mm based on 100 parts by weight of the total amount of a first polycarbonate resin (A) having a weight-average molecular weight of 25,000 g/mol or less, the filament filler (B), and one of a second polycarbonate resin (C) having a weight-average molecular weight of more than 25,000 g/mol and a rubber-modified styrene graft copolymer resin and a styrene copolymer resin (C). The polycarbonate resin composition provides high rigidity and impact strength, and thus is useful to manufacture a variety of molded articles such as mobile products, electronic components, etc.03-24-2011
20110152402Thermoplastic Resin Composition Having Good Scratch Resistance and Molded Article Made Therefrom - The present invention provides a thermoplastic resin composition that can have improved scratch resistance comprising: (A) about 10 to about 20% by weight of a rubber modified aromatic vinyl graft copolymer resin; (B) about 30 to about 50% by weight of polymethylmethacrylate (PMMA) resin; and (C) about 40 to about 60% by weight of an aromatic vinyl copolymer resin including about 5 to about 50% by weight of a (meth)acrylate alkyl ester. The thermoplastic resin composition of the present invention can have a good balance of various properties such as scratch resistance, impact strength, colorability, gloss, and injection molding properties.06-23-2011

Patent applications by Chang Min Hong, Uiwang-Si KR