SAMSUNG FINE CHEMICALS CO., LTD Patent applications |
Patent application number | Title | Published |
20160090443 | BIODEGRADABLE POLYESTER RESIN AND ARTICLE CONTAINING THE SAME - Provided are a biodegradable polyester resin and an article including the resin. The provided biodegradable polyester resin includes an aliphatic dicarboxylic acid residue including a succinic acid residue and an adipic acid residue; and an aliphatic diol residue including at least one selected from the group consisting of an ethylene glycol residue and a butanediol residue in order to improve biodegradability and flexibility. | 03-31-2016 |
20160002040 | METHOD FOR MANUFACTURING LITHIUM METAL PHOSPHATE - Disclosed is a method for manufacturing lithium metal phosphate (LMP) having, as a precursor, crystalline iron phosphate salt having a (meta)strengite structure or metal-doped crystalline iron phosphate salt having a (meta)strengite structure, the method comprising the steps of: mixing a lithium raw material with crystalline iron phosphate salt in a slurry phase or a cake phase; and heat-treating the mixture. The method, by mixing a lithium (Li) raw material and a carbon (C) coating material with crystalline iron phosphate salt in a slurry phase or a cake phase, allows elements such as Li, Fe, P and C to be homogeneously mixed, and then, by having the elements dried simultaneously, enables manufacturing of high-quality LMP. Therefore, the present invention is not only capable of providing convenience during the manufacturing process for lithium metal phosphate, but also capable of providing a lithium secondary battery positive electrode active material having excellent battery characteristics. | 01-07-2016 |
20150291744 | HARD CAPSULE HAVING IMPROVED THICKNESS UNIFORMITY - Provided is a hard capsule. The provided hard capsule includes water-soluble cellulose ether, about 0.5 parts by weight to about 1.5 parts by weight of a gelation agent based on 100 parts by weight of the water-soluble cellulose ether, and about 0 parts by weight to about 0.3 parts by weight of a gelation aid based on 100 parts by weight of the water-soluble cellulose ether, wherein the hard capsule comprises a body and a cap that seals the body, and a ratio of a maximum thickness to a minimum thickness of the body and the cap is each 2.5 or less. | 10-15-2015 |
20150280223 | SURFACE-MODIFIED SILICON NANOPARTICLES FOR NEGATIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING SAME - The present invention provides surface-modified silicon nanoparticles comprising a LixSiyOz top film and a carbon (C) coating layer on the surface of the nanoparticles by means of the addition of a lithium source and a carbon source during the manufacture of silicon nanoparticles or a post-treatment thereof. According to the present invention, the surface oxidation of the silicon nanoparticles, which would easily occur during a pulverization process, can be prevented. By using the silicon nanoparticles of which oxidation is prevented as a negative electrode material, problems related to decrease in capacity and electrolyte depletion resulting from an oxidized film can be mitigated. Thus, a deterioration in the properties of a lithium secondary battery can be prevented. | 10-01-2015 |
20150272150 | FERMENTED MILK COMPOSITION CONTAINING CELLULOSE ETHER AND PRODUCTION METHOD THEREOF - The present invention relates to a fermented milk composition containing cellulose ether and a production method thereof, the fermented milk composition includes cellulose ether as a stabilizer for preventing a whey separation phenomenon, and the production method of fermented milk includes manufacturing a fermented base; manufacturing a cellulose ether syrup; and adding the cellulose ether syrup to the fermented base to perform homogenization and cooling. As described above, in the fermented milk composition, it is possible to provide a fermented milk beverage securing stabilized phase stability and having reduced sourness by applying cellulose ether in a small amount instead of pectin as the stabilizer for preventing the whey separation phenomenon. | 10-01-2015 |
20150270536 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, CONDUCTIVE COMPOSITION FOR SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL COMPRISING SAME, NEGATIVE ELECTRODE STRUCTURE AND SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME - The present invention relates to a negative electrode active material for a secondary battery, a conductive composition for a secondary battery, a negative electrode material including the same, a negative electrode structure and secondary battery including the same, and a method for manufacturing the same. The present invention includes: a silicon particle; and an amorphous surface layer formed on the surface of the silicon particle. According to the present invention, the negative electrode structure is formed of a composite of a silicon particle and carbon or lithium ion, the oxygen contents of the solid electrolyte and silicon particles are low, and thus aggregation of silicon particles is inhibited. Therefore, in the event of using the negative electrode structure in a negative electrode, a power storage device such as a lithium secondary battery may have high energy density, high output density, and a longer charging/discharging life cycle. | 09-24-2015 |
20150262763 | SUPERCAPACITOR ELECTRODE MATERIAL HAVING COMBINED POROUS TITANIUM OXIDE AND CARBON-BASED MATERIAL, AND METHOD FOR MANUFACTURING SAME - The present invention relates to a supercapacitor electrode material in which a transition metal oxide and a carbon-based material are combined, and particularly, to a supercapacitor electrode material which increases) the capacitance of a capacitor by increasing a specific surface area through the process of making pores of a transition metal oxide and then applying the transition metal oxide having the increased specific surface area, and to a method for manufacturing the supercapacitor electrode material. According to the present invention, the supercapacitor electrode material is manufactured by mixing and reacting a layered titanium oxide with a spherical titanium oxide to obtain a porous titanium oxide, and combining the porous titanium oxide with a carbon-based material. | 09-17-2015 |
20150239819 | METHOD FOR MANUFACTURING METAL PRECURSOR AND METHOD FOR MANUFACTURING METAL INK BY USING METAL PRECURSOR - A method of preparing a metal precursor and a method of preparing a metal ink using the same are provided. The method of preparing a metal precursor and the method of preparing a metal ink using the same can be useful in facilitating separation and purification of a precursor from impurities formed during precursor synthesis by allowing a metal precursor to form a suboligomeric aggregate as the metal precursor is synthesized using a fatty acid having a substituent at an α position, and also enhancing solubility, enabling low-temperature sintering and improving coating film physical properties and electrical properties of the final metal ink. | 08-27-2015 |
20150225549 | METHOD FOR MANUFACTURING METAL NANOPARTICLES AND METHOD FOR MANUFACTURING METAL NANOPARTICLE INK BY SAME - A method of preparing metal nanoparticles for metal inks, and a method of preparing a metal nanoparticle ink using the same are provided. The method includes dissolving a metal precursor having a substituent at an α position, and applying an energy source or a mechanical force to the metal precursor solution. Also, the method includes preparing metal nanoparticles capable of adjusting an average particle size of the metal nanoparticles according to synthesis conditions, and preparing a metal nanoparticle ink by dissolving the prepared metal nanoparticles. Accordingly, the prepared metal nanoparticle ink can have improved dispersion stability and electric physical properties. | 08-13-2015 |
20150217374 | METHOD FOR MANUFACTURING METAL NANOPARTICLES BY USING PHASE TRANSITION REDUCTION, AND METAL INK COMPRISING METAL NANOPARTICLES MANUFACTURED THEREBY - A method of preparing metal nanoparticles using a phase transfer reduction method in which a reduction reaction is adjusted by distribution equilibrium between an intermediate formed by a coordinate bond between a capping material and various metal precursors in the form of an organic phase and a reducing agent present in an aqueous phase, and a metal ink prepared from the metal nanoparticles. The method of preparing metal nanoparticles includes dissolving a metal precursor and a capping agent in an organic phase, dissolving a reducing agent in an aqueous phase, mixing the organic phase and the aqueous phase to form a precipitate, separating the precipitate, and drying the separated precipitate. The metal nanoparticles prepared using the method can be prepared to have various particle sizes according to the kind of precursors and a length of an alkyl chain of an amine used as the capping agent. As a self-quenching reaction in which growth of the nanoparticles in the aqueous layer is stopped takes place since the nanoparticle precipitate into the aqueous layer from the organic layer due to a difference in density of the metal nanoparticles formed during a reaction, a particle size of the metal nanoparticles can be easily controlled, and excellent processability in which the metal nanoparticles are easily separated/purified from the organic layer in which most reaction by-products are present can be ensured. Also, as the metal nanoparticles having various particle sizes are able to be prepared, a metal ink having various sintering temperatures spanning from a low temperature to a high temperature can be prepared using the metal nanoparticles. | 08-06-2015 |
20150210779 | METHOD OF MANUFACTURING ULTRA-LOW VISCOSITY HYDROXYALKYL CELLULOSE THROUGH PARTIAL NEUTRALIZATION METHOD - The present invention relates to a method of manufacturing ultra-low viscosity hydroxyalkyl cellulose through a partial neutralization method, and the method includes: reacting cellulose with an alkalizing agent to obtain alkalized cellulose; reacting the alkalized cellulose with an etherifying agent to obtain hydroxyalkyl cellulose; performing first neutralization of the hydroxyalkyl cellulose; decomposing the hydroxyalkyl cellulose by using hydrogen peroxide; and performing second neutralization of the hydroxyalkyl cellulose. Through the aforementioned method, ultra-low viscosity hydroxyalkyl cellulose can be manufactured while preventing a process problem, such as swelling, which may occur through the decomposition of an acid treatment. | 07-30-2015 |
20150210546 | METHOD FOR PREPARING LITHIUM METAL PHOSPHOR OXIDE - The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiM | 07-30-2015 |
20150203596 | METHOD FOR PREPARING ACETYLATED CELLULOSE ETHERS HAVING IMPROVED ANTI-FOULING PROPERTIES, AND ACETYLATED CELLULOSE ETHERS PREPARED BY SAME - The present invention relates to a method for preparing acetylated cellulose ethers having improved anti-fouling properties and to acetylated cellulose ethers prepared by same. The method for preparing acetylated cellulose ethers having improved anti-fouling properties comprises the steps of: cross-linking cellulose ethers; and acetylating the cross-linked cellulose ethers. The acetylated cellulose ethers prepared by the method may activate the hydroxyl group which is made into blocks by the agglomeration between polymers performed by the materials for cross-linking the cellulose ethers, and may introduce thereto an additional hydrophilic group so as to increase hydrophilic properties, and thus may improve anti-fouling properties when applied to water-treatment membranes. | 07-23-2015 |
20150203354 | METHOD FOR PREPARING NANO-SIZED IRON PHOSPHATE PARTICLES - The present invention relates to a method for preparing nano-sized iron phosphate particles, the method including the steps of: mixing an iron salt solution and a phosphate solution in a reactor in order to prepare a suspension containing amorphous or crystalline iron phosphate precipitate; and applying a shearing force to the mixed solution inside the reactor during the step of mixing, wherein the suspension containing nano-sized iron phosphate precipitate particles is formed by means of the shearing force and the conditions inside the reactor. According to the present invention, micro-mixing takes place faster than nucleation, which provides an advantage for preparing nanoparticles and for preparing particles having a uniform particle size distribution. | 07-23-2015 |
20150197655 | AQUEOUS COMPOSITION FOR PREPARING HARD CAPSULE, PREPARATION METHOD THEREFOR, HARD CAPSULE, AND METHOD FOR RECYCLING HARD CAPSULE SCRAPS - Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule. | 07-16-2015 |
20150194701 | SOLID ELECTROLYTE CONTAINING IONIC LIQUID - The present invention is intended to provide a gel-type solid electrolyte having flexibility while maintaining the advantages of an ionic liquid by effectively internalizing the ionic liquid into a porous metal oxide. To this end, the present invention provides the gel-type solid electrolyte which includes an ionic liquid in a porous metal oxide prepared from a silane compound represented by the following Chemical Formula 1: | 07-09-2015 |
20150183927 | METHOD FOR CONTINUOUSLY PREPARING BIODEGRADABLE ALIPHATIC/AROMATIC POLYESTER COPOYMER - Provided is a method of continuous preparation of a biodegradable aliphatic/aromatic polyester copolymer, the method including: performing a first esterification reaction of an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product obtained by the first esterification reaction; obtaining a pre-polymer by continuously performing a first polycondensation reaction of a reaction product obtained by the second esterification reaction; and continuously performing polycondensation reaction of the pre-polymer, wherein an aromatic carboxylic acid is added to a reactor in which the first esterification reaction or the second esterification reaction is performed, to prepare the biodegradable aliphatic/aromatic polyester copolymer. According to the method of continuous preparation of the biodegradable aliphatic/aromatic polyester copolymer as described above, the amount of the aliphatic dihydroxy compound used, which is a starting material, is reduced and accordingly, manufacturing costs are reduced. | 07-02-2015 |
20150152218 | METHOD FOR MANUFACTURING BIODEGRADABLE COPOLYMER BY SPLIT-INJECTING AROMATIC DICARBOXYLIC ACID COMPOUND - There is provided a method of preparation for a biodegradable co-polyester, the method including: forming an oligomer through a primary esterification reaction between a hydroxy group of an aliphatic dihydroxy compound and a carboxylic group of an aliphatic dicarboxylic acid compound; performing a secondary esterification reaction between the formed oligomer and an aromatic dicarboxylic acid compound; and performing a polycondensation reaction in a vacuum, in which sequentially divided addition of the aromatic dicarboxylic acid compound is performed and the weight ratio of the aromatic dicarboxylic acid compound with respect to the oligomer for each time of the sequentially divided addition is from 2:8 to 5:5. The method efficiently increases a solubility of aromatic dicarboxylic acid, thereby increasing a reaction rate and reducing a side reaction. | 06-04-2015 |
20150080479 | COMPOSITION FOR ENTERIC HARD CAPSULE AND ENTERIC HARD CAPSULE PREPARED USING THE COMPOSITION - A composition for enteric hard capsules and an enteric hard capsule prepared using the composition. The composition includes a water-soluble divalent base and an alkaline agent. The enteric hard capsule has high transparency and delaying effects of separation of salt during storage. | 03-19-2015 |
20150027343 | FILM AND METHOD OF PREPARING THE SAME - A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less. | 01-29-2015 |
20140343272 | PREPARATION METHOD OF ACETYLATED CELLULOSE ETHER, AND ACETYLATED CELLULOSE ETHER PREPARED THEREBY - Disclosed are a method of preparing acetylated cellulose ether, and acetylated cellulose ether prepared thereby. Here, the disclosed method of preparing the acetylated cellulose ether includes dissolving acetylated cellulose ether in an organic solvent to obtain a mixture comprising a solution of the acetylated cellulose ether; removing an insoluble component that is insoluble in the organic solvent from the mixture; and adding the mixture to water to precipitate the acetylated cellulose ether. The acetylated cellulose ether prepared thereby has a turbidity of less than 40 formazin turbidity units (FTU). | 11-20-2014 |
20140332708 | ACETYLATED CELLULOSE ETHER, METHOD FOR PREPARING SAME, AND ARTICLE COMPRISING THE ACETYLATED CELLULOSE ETHER - Disclosed are acetylated cellulose ether, a method of preparing the same, and an article including the same. The disclosed acetylated cellulose ether has a degree of substitution (DS) of alkyl group of 1 to 2, a molar substitution (MS) of hydroxyalkyl group of 0 to 1, and a degree of substitution (DS) of acetyl group of 1 to 2; and a bulk density of 0.1 to 0.4. | 11-13-2014 |
20140319413 | CRYSTALLINE IRON PHOSPHATE DOPED WITH METAL, METHOD OF PREPARING THE SAME, AND LITHIUM COMPOSITE METAL PHOSPHATE PREPARED THEREFROM - Provided are a crystalline iron phosphate doped with metals (MFePO | 10-30-2014 |
20140284085 | WHOLLY AROMATIC POLYESTER AMIDE COPOLYMER RESIN, POLYMER FILM INCLUDING THE WHOLLY AROMATIC POLYESTER AMIDE COPOLYMER RESIN, FLEXIBLE METAL-CLAD LAMINATE INCLUDING THE POLYMER FILM, AND FLEXIBLE PRINTED CIRCUIT BOARD INCLUDING THE FLEXIBLE METAL-CLAD LAMINATE - Provided are a wholly aromatic polyester amide copolymer resin, a polymer film containing the wholly aromatic polyester amide copolymer resin, a flexible metal clad laminate containing the polymer film, and a flexible printed circuit board employing the flexible metal clad laminate. The disclosed wholly aromatic polyester amide copolymer resin includes 5-25 parts by mole of a repeating unit (A) derived from an aromatic hydroxy carboxylic acid; 20-40 parts by mole of at least one repeating unit selected from the group consisting of a repeating unit (B) derived from an aromatic amine having a phenolic hydroxyl group and a repeating unit (B′) derived from an aromatic diamine; 20-40 parts by mole of a repeating unit (C) derived from an aromatic dicarboxylic acid; 5-20 parts by mole of a repeating unit (D) derived from an aromatic diol; and 5-20 parts by mole of a repeating unit (E) derived from an aromatic amino carboxylic acid. | 09-25-2014 |
20140234521 | LOW FAT MAYONNAISE COMPOSITION AND METHOD OF PRODUCING THE SAME - Provided are a low fat mayonnaise composition to which cellulose ether is applied, and a method of producing the same, in which the low fat mayonnaise composition includes 50 wt % or less of an emulsion with respect to the total weight of the composition, and cellulose ether and an excipient as a fat substitute. Therefore, with the mayonnaise composition, low fat mayonnaise which includes an oil and fat content of ½ or less may be produced from only a vegetable material having phase stability at various temperatures without using eggs which may lead to an allergy and may serve as a primary source of increasing cholesterol. | 08-21-2014 |
20140231705 | AQUEOUS POLYMER COMPOSITION FOR REMOVING DUST - The present invention relates to an aqueous polymer composition for removing dust. The composition comprises a cellulose ether and water, and the cellulose ether can be dissolved in water to produce a dust removing cellulose ether aqueous solution which then exhibits a long-term dust removing effect due to the water-retention properties and the film forming properties of the cellulose ether. | 08-21-2014 |
20140193714 | CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE CATHODE ACTIVE MATERIAL - A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1: | 07-10-2014 |
20140182486 | ADDITIVE FOR SKIM COAT MORTAR AND SKIM COAT MORTAR COMPOSITION CONTAINING THE SAME - Provided are an additive for skim coat mortar and a skim coat mortar composition including the same, and the additive is a blend of cellulose ether having hydroxyalkylalkyl cellulose cross-linked with an aldehyde compound and hydroxyalkyl cellulose cross-linked with an aldehyde compound. By applying the additive to a skim coat mortar composition, it is possible to improve workability, surface luster, and a creamy property while maintaining a water retention property. | 07-03-2014 |
20140174292 | CARBON DIOXIDE ADSORBENT INCLUDING BARIUM TITANATE, CARBON DIOXIDE CAPTURE MODULE INCLUDING THE SAME, AND METHODS FOR SEPARATING CARBON DIOXIDE USING THE SAME - A carbon dioxide adsorbent may include a complex oxide including barium and titanium, wherein the complex oxide has a perovskite crystalline structure and is represented by the general formula Ba | 06-26-2014 |
20140162127 | CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES INCLUDING THE SAME - The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same, and provides a cathode active material including: a lithium manganese-excess layered structure composite oxide represented by Formula Li[Li | 06-12-2014 |
20140162126 | CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES INCLUDING THE SAME - The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same, and provides a cathode active material including Li | 06-12-2014 |
20140141331 | CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES INCLUDING THE SAME - The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same. Provided is a cathode active material composed of a lithium-excess lithium metal composite compound including Li | 05-22-2014 |
20140134502 | ELECTROLYTE FOR SECONDARY LITHIUM BATTERY AND SECONDARY LITHIUM BATTERY USING THE SAME - An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt; a nonaqueous organic solvent; and an additive composition, wherein the additive composition comprises at least one of a first compound of Formula 1 and a second compound of Formula 2: | 05-15-2014 |
20140134380 | BIODEGRADABLE RESIN COMPOSITION, AND DRAINING BOARD CORE MATERIAL AND DRAINING BOARD PRODUCED THEREFROM - A biodegradable resin composition is provided. More particularly, a biodegradable resin composition for a core of a drain board, which has excellent extrusion productivity and thus improves productivity by improving physical properties, for example, reducing contractibility and elasticity recovery, according to original characteristics of a biodegradable resin without degradation in biodegrability of the biodegradable resin by mixing the biodegradable resin with an additional material for improving processibility in suitable amounts, a core of a drain board using the same, and a method of manufacturing a drain board. | 05-15-2014 |
20140134319 | PROCESSED MEAT PRODUCT WITHOUT ADDED PHOSPHATE, AND METHOD OF PRODUCING SAME - The present invention relates to a processed meat product (sausage and ham) having no added phosphate, which is a harmful ingredient to humans and is used in processes for producing processed meat products, and to a method for producing same. According to the present invention, the pH of ground raw meat is raised to increase the water retention thereof, and a basic pH control agent, alone or combined with a hydrocolloid, is used as a substituting means for phosphate in order to improve syneresis and texture. According to the present invention, a processed meat product having added phosphate may be provided having improved quality without including phosphate. | 05-15-2014 |
20140121332 | PRODUCTION METHOD FOR BIODEGRADABLE POLYESTER COPOLYMER RESIN - There is provided a production method for a biodegradable resin using a relatively inexpensive compound as an aromatic dicarboxylic acid compound, wherein, during the process of producing a biodegradable resin in the form of an aliphatic-aromatic polyester copolymer, an aliphatic dihydroxyl compound used as a starting material is used in an amount of between 1 and 1.5 equivalent weight with respect to aliphatic and aromatic dicarboxylic acid compounds. The present invention includes the steps of: causing a hydroxyl group of the aliphatic dihydroxyl compound to undergo a first reaction with a carboxyl group of the aliphatic dicarboxylic acid compound; and causing the residual hydroxyl group of the aliphatic dihydroxyl compound to undergo a second reaction with a carboxyl group of the aromatic dicarboxylic acid compound. The present invention has the advantage that it is possible to produce the aliphatic-aromatic polyester copolymer biodegradable resin by means of an efficient method while not detracting from the mechanical properties of the biodegradable resin. | 05-01-2014 |
20140120378 | COMPOSITE CATHODE ACTIVE MATERIAL, METHOD OF PREPARING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM BATTERY EACH INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL - A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements. | 05-01-2014 |
20140113190 | LITHIUM METAL OXIDE COMPOSITE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A lithium metal oxide composite for a lithium secondary battery includes a core portion formed of a Mn metal compound and a shell portion formed of a three-component system metal compound at an outside of the core portion. A method of preparing a lithium metal oxide composite for a lithium secondary battery includes: mixing an Mn metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a first precursor; thermally treating the obtained first precursor; mixing the thermally treated first precursor with a three component system metal salt aqueous solution, a chelate agent, and a pH regulator to precipitate a second precursor; and mixing the obtained second precursor with a lithium-containing compound to synthesize a powder via a firing. | 04-24-2014 |
20140106222 | POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL - A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide. | 04-17-2014 |
20140103252 | CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM BATTERY INCLUDING THE MATERIAL - A cathode active material including a lithium metal oxide represented by Formula 1: | 04-17-2014 |
20140091255 | METHOD FOR PREPARING AN ELECTRODE ACTIVE MATERIAL FOR IMPROVING THE PROPERTIES OF A BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE ACTIVE MATERIAL PREPARED THEREBY - A method of preparing an electrode active material for manufacturing a lithium secondary battery exhibiting stable charging/discharging efficiency and life-cycle characteristics even during high-speed charging/discharging cycles is provided. Also, a method of controlling both a composition ratio (Ti/Li) of surface elements and a composition of a lithium element in a lithium titanium oxide which is known to be an electrode active material having a relatively stable structure is provided. The lithium secondary battery using the lithium titanium oxide manufactured by the method as the electrode active material can be stably used by maintaining charging/discharging efficiency and charging capacity even during the high-speed charging/discharging cycles. | 04-03-2014 |
20140070150 | REFLECTOR AND LIGHT-EMITTING DEVICE COMPRISING THE SAME - A reflector and a light-emitting device including the same. The reflector includes a wholly aromatic liquid crystalline polyester amide resin compound that includes a repeating unit derived from a hydroxybenzoic acid, a repeating unit derived from a hydroxynaphthoic acid, and a repeating unit derived from an aminobenzoic acid, but does not include a repeating unit derived from an aromatic dicarboxylic acid, wherein the wholly aromatic liquid crystalline polyester amide resin compound further includes a white inorganic filler. | 03-13-2014 |
20140057181 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE MATERIAL - Provided is a positive electrode active material for a lithium secondary battery including a positive electrode active material particle and an electrolyte-containing metal oxide coating layer having a porous structure and a method of manufacturing the same. A lithium secondary battery to which the positive electrode active material including the electrolyte-containing metal oxide coating layer is applied can have improved charge/discharge efficiency and lifespan characteristics at the same time. | 02-27-2014 |
20140004457 | POLYMERIZATION TONER FOR ELECTROSTATIC DEVELOPING | 01-02-2014 |
20130331540 | METHOD OF PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN AND RESIN PREPARED BY THE METHOD, AND COMPOUND INCLUDING THE RESIN - Provided is a method of preparing a wholly aromatic liquid crystalline polyester resin and a wholly aromatic liquid crystalline polyester resin prepared by the method, and a compound of the wholly aromatic liquid crystalline polyester resin. The disclosed method of preparing the wholly aromatic liquid crystalline polyester resin includes a step (a first temperature increasing step) of increasing the temperature of a reaction mixture including at least one monomer at a first temperature increasing rate up to a first temperature; a step (an isothermal maintaining step) of maintaining the reaction mixture that passed through the first temperature increasing step at the first temperature for a first time; and a step (a second temperature increasing step) of increasing the temperature of the reaction mixture that passed through the isothermal maintaining step at a second temperature increasing rate. | 12-12-2013 |
20130295503 | METHOD FOR MANUFACTURING TONER - Disclosed is a method for manufacturing toner. The method for manufacturing toner according to the present invention uses specific polyester resin to obtain toner with a wide range of fixing temperatures and superior gloss and density of image. | 11-07-2013 |
20130273472 | METHOD FOR MANUFACTURING TONER - Provided is a method for manufacturing a toner. By using a wax dispersion liquid containing silica, the toner which does not have an unpleasant odor can be achieved without influencing other physical properties of the toner. | 10-17-2013 |
20130273466 | TONER HAVING EXCELLENT ENVIRONMENTAL RESISTANCE, FLUDITY, AND CHARGEABILITY - Provided is a toner particle having excellent environmental resistance, fluidity, and chargeability for developing an electrostatic image. The toner particle comprises a coupling resin, a release agent, and a coloring agent, and satisfies Formula (1) below: | 10-17-2013 |
20130269304 | FIBER WEB, PREPARATION METHOD THEREOF, AND FILTER INCLUDING FIBER WEB - Disclosed are a fiberweb, a preparation method thereof, and a filter including the fiberweb. The fiberweb includes a wholly aromatic liquid crystal polyester resin which includes a repeating unit induced from a hydroxybenzoic acid and a repeating unit induced from a hydroxynaphthoic acid, but does not include a repeating unit induced from an aromatic dicarboxylic acid. | 10-17-2013 |
20130245248 | ACETYLATED CELLULOSE ETHER AND ARTICLES INCLUDING SAME - Provided are acetylated cellulose ether and an article including the same. The acetylated cellulose ether has a molecular weight of about 1,000 to about 1,000,000 Daltons, a contact angle of about 20 to about 45 degrees (°), and a tensile strength of about 50 to about 100 MPa. | 09-19-2013 |
20130231453 | METHOD FOR PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER AMIDE RESIN AND METHOD FOR PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER AMIDE RESIN COMPOUND - A method of preparing a wholly aromatic liquid crystalline polyester amide resin and a method of preparing a wholly aromatic liquid crystalline polyester amide resin compound. The method of preparing a wholly aromatic liquid crystalline polyester amide resin is performed using a monomer having both a hydroxyl group and an acetylamino group or using a monomer having a hydroxyl group and a monomer having an acetylamino group. In addition, the method of preparing a wholly aromatic liquid crystalline polyester amide resin compound is performed using a wholly aromatic liquid crystalline polyester amide resin that is prepared using the method. | 09-05-2013 |
20130231436 | REFLECTIVE BODY AND A LIGHT-EMITTING DEVICE EQUIPPED WITH THE SAME - A reflector and a light-emitting device including the same. The reflector includes a wholly aromatic liquid crystalline polyester resin compound that includes a repeating unit derived from a hydroxybenzoic acid and a repeating unit derived from a hydroxynaphthoic acid, but does not include a repeating unit derived from an aromatic dicarboxylic acid, wherein the wholly aromatic liquid crystalline polyester resin compound further includes a white inorganic filler. | 09-05-2013 |
20130231434 | WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN COMPOUND HAVING IMPROVED FLUIDITY - Provided is a wholly aromatic liquid crystalline polyester resin compound. The wholly aromatic liquid crystalline polyester resin compound includes a wholly aromatic liquid crystalline polyester resin having a high melting point and mica having a predetermined size. | 09-05-2013 |
20130203868 | COMPOSITION FOR ENTERIC HARD CAPSULES, AND ENTERIC HARD CAPSULE PREPARED USING THE COMPOSITION - A composition for enteric hard capsules, and an enteric hard capsule prepared using the composition. The composition for enteric hard capsules may include polyol having at least three hydroxyl groups. During the storage of the enteric hard capsule prepared using the composition, the separation of salt from the capsule is delayed. | 08-08-2013 |
20130202223 | BIODEGRADABLE RESIN AND METHOD FOR MANUFACTURING SAME - Provided is a biodegradable resin including a urethane bond generated by a reaction of a polyester polymer with a polyvalent isocyanate used as a chain extender. Particularly, provided is a method of preparing a biodegradable resin using a limited amount of the chain extender and having excellent properties, and a biodegradable resin in which nitrogen content is controlled. Therefore, the biodegradable resin which can reduce the use of a harmful component to the human body and environment in the process of preparing the biodegradable resin and can be safely used for packing materials for food or medicine is provided. | 08-08-2013 |
20130137845 | PRODUCTION METHOD FOR A WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN, A WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN PRODUCED BY MEANS OF THE METHOD, AND A COMPOUND OF THE WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN - Disclosed are a production method for a wholly aromatic liquid crystalline polyester resin, a wholly aromatic liquid crystalline polyester resin produced using the method, and a compound of the wholly aromatic liquid crystalline polyester resin. The disclosed production method for a wholly aromatic liquid crystalline polyester resin comprises the steps of synthesizing a wholly aromatic liquid crystalline polyester resin by synthesizing a wholly aromatic liquid crystalline polyester prepolymer by a condensation polymerization of a monomer and then reducing the pressure inside a reaction vessel containing the synthesized prepolymer at a predetermined internal pressure reduction rate of the reaction vessel. | 05-30-2013 |
20130102798 | METHOD FOR PREPARING CHLOROHYDRINS AND METHOD FOR PREPARING EPICHLOROHYDRIN USING CHLOROHYDRINS PREPARED THEREBY - A method of preparing chlorohydrins and a method of preparing epichlorohydrin using chlorohydrins prepared by using the same method are provided. The method is to prepare chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, and the method includes at least one combination of a series of unit operations including the following steps in the following stated order: a first reaction step; a water removal step; and a second reaction step, wherein the water removing step is performed by distillation operation based on a boiling point difference between constituents of a reaction mixture. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared by using the method of preparing chlorohydrins with an alkaline agent. | 04-25-2013 |
20130072579 | METHOD OF PREPARAING ENTERIC HARD CAPSULE AND ENTERIC HARD CAPSULE PREPARED THEREBY - A method of preparing enteric hard capsules, and an enteric hard capsule prepared by the method. The method may include: dissolving an enteric base material, a capsule forming aid, and a neutralizing agent in water at room temperature to prepare an aqueous composition; heating the aqueous composition to a first temperature that is higher than a gelation start temperature of the aqueous composition; cooling the heated aqueous composition to a second temperature that is lower than the gelation start temperature; immersing a mold pin heated to a third temperature that is higher than the gelation start temperature into the aqueous composition; removing the mold pin from the aqueous composition to obtain a film coated on the mold pin; maintaining the film on the mold pin at a fourth temperature that is higher than the gelation start temperature for a first time period to fix the film onto the mold pin; and drying the fixed film at a fifth temperature for a second time period to obtain a capsule shell. | 03-21-2013 |
20120328981 | PREPARATION METHOD FOR TONER BY USING ALKALI-SOLUBLE RESIN CONTAINING ACIDIC GROUP - Disclosed is a preparation method for a toner. Problems according to use of a surfactant can be solved and it is possible to prepare toner particles having a uniform distribution of particle size by using an alkali-soluble resin containing an acidic group. | 12-27-2012 |
20120301822 | METHOD FOR PRODUCING TONER - Disclosed is method of preparing toner. According to the method, a concentration of a surfactant, a concentration of an aggregating agent, and a concentration of a hydrogen ion in a reaction solution of an aggregation process are controlled to produce toner particles having a narrow particle size distribution and excellent fixability, and providing a high quality image. | 11-29-2012 |
20120301821 | METHOD FOR PRODUCING TONER - Disclosed is a method of producing toner. According to the method, a concentration of a dispersion stabilizer, a concentration of an aggregating agent, and a concentration of a hydrogen ion in a reaction solution of an aggregation process are controlled to produce toner particles having a narrow particle size distribution and excellent fixability, and providing a high quality image. | 11-29-2012 |
20120301819 | TONER HAVING EXCELLENT BLOCKING RESISTANCE AND FLOWABILITY, AND METHOD FOR PRODUCING SAME - Provided is a toner having excellent blocking resistance and flowability. The toner comprises a binder resin, a releasing agent, a colorant and an external additive, wherein the toner particles satisfy expression (1): | 11-29-2012 |
20120296078 | ACETYLATED CELLULOSE ETHER AND ARTICLES COMPRISING THE SAME - Acetylated cellulose ether and an article including the same. The acetylated cellulose ether has a degree of substitution (DS) of alkyl group of 1 to 2, a molar substitution (MS) of hydroxyalkyl group of 0 to 1, and a degree of substitution (DS) of acetyl group of 1 to 2. | 11-22-2012 |
20120289627 | ADMIXTURE COMPOSITION FOR A TILE CEMENT MORTAR AND A TILE CEMENT MORTAR COMPOSITION COMPRISING THE SAME - Disclosed are an admixture composition for a tile cement mortar and a tile cement mortar composition comprising the admixture composition. The disclosed admixture composition for a tile cement mortar comprises a cellulose ether, a polyacrylamide-based polymer coagulant and an inorganic coagulant. | 11-15-2012 |
20120288793 | METHOD FOR PRODUCING TONER - Disclosed is a method for producing toner. The method for producing toner by emulsion aggregation according to the present invention, comprises adjusting viscosity at a homogenization stage, to thereby obtain toner particles having a dense particle size distribution via a simple process. | 11-15-2012 |
20120276476 | TONER FOR ELECTROSTATIC USE - Toner particles having high transcription efficiency and reducing toner toner consumption. The toner includes a binder resin and a colorant, wherein a particle diameter distribution of the toner particles satisfy the following conditions: | 11-01-2012 |
20120244467 | TONER FOR ELECTROSTATIC USE - Toner particles having excellent cleaning properties and glossing properties. The toner particles include a binder resin, a releasing agent, and a colorant, wherein toner particles satisfy the following conditions. | 09-27-2012 |
20120225382 | METHOD FOR MANUFACTURING TONER - A method of preparing toner. Due to the use of an inorganic salt of a monovalent metal as a coagulant when toner particles are aggregated, formed toner particles have a narrow particle size distribution, low-temperature fixability, and high image quality. | 09-06-2012 |
20120199790 | WHOLLY AROMATIC LIQUID CRYSTAL POLYESTER RESIN COMPOUND, PREPARATION METHOD THEREOF, PARTS FOR OPTICAL PICKUP, AND PREPARATION METHOD THEREOF - Disclosed are a wholly aromatic liquid crystal polyester resin compound, a preparation method thereof, parts for optical pickup, and a preparation method thereof. The disclosed wholly aromatic liquid crystal polyester resin compound comprises two kinds of wholly aromatic liquid crystal polyester resins having different melting points and an additive, and most of the terminal groups in the resins having lower melting points among the resins comprise a carboxyl group. | 08-09-2012 |
20120193571 | WHOLLY AROMATIC LIQUID CRYSTAL POLYESTER RESIN COMPOUND WITH IMPROVED HEAT RESISTANCE, AND PREPARATION METHOD THEREOF - Disclosed are a wholly aromatic liquid crystal polyester resin compound and a preparation method thereof. The disclosed wholly aromatic liquid crystal polyester resin compound comprises a wholly aromatic liquid crystal polyester resin having a high melting point, and an inorganic filler having a high thermal conductivity. In addition, the disclosed wholly aromatic liquid crystal polyester resin compound can be prepared by using a twin screw extruder having a barrel temperature of 350 to 450° C. | 08-02-2012 |
20120161364 | AQUEOUS COMPOSITION FOR ENTERIC HARD CAPSULE, METHOD OF PREPARING ENTERIC HARD CAPSULE, AND ENTERIC HARD CAPSULE PREPARED USING THE METHOD - An aqueous composition for an enteric hard capsule, a method of preparing an enteric hard capsule, and an enteric hard capsule prepared using the method. The aqueous composition for an enteric hard capsule includes an enteric base material, a capsule forming aid, and a neutralizing agent. The method of preparing an enteric hard capsule includes: preparing an aqueous composition by dissolving an enteric base material, a capsule forming aid, and a neutralizing agent in water; preheating the aqueous composition to a temperature that is less than the gelation temperature for the aqueous composition; immersing a mold pin heated to a temperature that is greater than the gelation temperature for the aqueous composition into the aqueous composition; taking the mold pin out of the aqueous composition to obtain a film formed on the mold pin; and maintaining the film at a temperature that is equal to or greater than the gelation temperature for the aqueous composition for a predetermined period of time to fix the film on the mold pin and drying the film. | 06-28-2012 |
20120141360 | METHOD OF PREPARING LITHIUM TITANATE NANOPARTICLES - A method of preparing lithium titanate nanoparticles, the method including: feeding reactants including lithium and titanium into a reactor, followed by mixing the reactants in the reactor at a molecular level; and generating a crystal nucleus by chemically reacting the reactants in the reactor. | 06-07-2012 |
20120114544 | ORGANIC CHLOROHYDROSILANE AND METHOD FOR PREPARING THEM - Provided is an organic chlorohydrosilane, a useful starting material for preparing silicon polymers and a method for preparing the same. More particularly, the present invention enables the synthesis of various novel organic chlorohydrosilanes in high yield by an exchange reaction between an Si—H bond of a chlorosilane which can be obtained in an inexpensive and easy manner and an Si—Cl bond of an another organic chlorosilane using a quaternary organic phosphonium salt compound as a catalyst. Since the catalyst can be recovered after its use and reused, the present invention is very economical and thus effective for mass-producing silicon raw materials. | 05-10-2012 |
20120095183 | METHODS OF PREPARING WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN AND WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN COMPOUND WITH CONSTANT MELT VISCOSITY - A method of preparing a wholly aromatic liquid crystalline polyester resin and a method of preparing a wholly aromatic liquid crystalline polyester resin compound. The method of preparing the wholly aromatic liquid crystalline polyester resin includes condensation poly-merizing raw 1 monomers including aromatic hydroxy carboxylic acid and a mixture of aromatic diol and aromatic dicarboxylic acid in a predetermined molar ratio. In addition, the method of preparing the wholly aromatic liquid crystalline polyester resin compound includes the method of preparing the wholly aromatic liquid crystalline polyester resin | 04-19-2012 |
20120037848 | Wholly Aromatic Liquid Crystalline Polyester Resin Compound Having Enhanced Releasing Property And Method Of Preparing The Same - A wholly aromatic liquid crystalline polyester resin compound and a method of preparing the same. The wholly aromatic liquid crystalline polyester resin compound includes at least one of a polyethylene-based resin and a polypropylene-based resin as an additive. The method of preparing the wholly aromatic liquid crystalline polyester resin compound includes adding at least one of a polyethylene-based resin and a polypropylene-based resin as an additive. | 02-16-2012 |
20120028182 | TONER HAVING CORE-SHELL STRUCTURE AND METHOD OF PREPARING THE SAME - A toner having a core-shell structure and a method of preparing the same. Since a shell includes a crosslinked resin, a toner preventing hot offsets and having excellent charge stability is prepared. | 02-02-2012 |
20120022202 | WHOLLY AROMATIC LIQUID CRYSTALLINE POLYESTER RESIN COMPOUND WITH ENHANCED FLUIDITY AND METHOD OF PREPARING THE SAME - Provided are a wholly aromatic liquid crystalline polyester resin compound and a method of preparing the same. The wholly aromatic liquid crystalline polyester resin compound comprises a first wholly aromatic liquid crystalline polyester resin with a low melting point, a second wholly aromatic liquid crystalline polyester resin with a high melting point, and an additive, wherein the amount of the first wholly aromatic liquid crystalline polyester resin is 5 to 10 parts by weight with respect to 100 parts by weight of the second wholly aromatic liquid crystalline polyester resin. | 01-26-2012 |
20120006233 | ADMIXTURE FOR CEMENT MORTAR HAVING CRACK RESISTANCE AND CEMENT MORTAR INCLUDING THE SAME - An admixture for a cement mortar and a cement mortar including the same. The admixture includes at least one of hydroxyethylmethyl cellulose having a degree of substitution (DS) of a methyl group in a range from 1.6 to 2.0 and hydroxypropylmethyl cellulose having a molar substitution MS of a hydroxypropyl group in a range from 0.4 to 1.0. | 01-12-2012 |
20110282080 | METHOD OF PREPARING DICHLOROPROPANOL USING GLYCEROL WITH IMPROVED SELECTIVITY FOR DICHLOROPROPANOL - A method of preparing dichloropropanol using glycerol. The method includes: chlorination of glycerol including a plurality of chlorination reaction stages using a catalyst; and a water-removing stage performed between the reaction stages, independently of the reaction stages. | 11-17-2011 |
20110269068 | METHOD OF PREPARING TONER HAVING NARROW PARTICLE SIZE DISTRIBUTION - According to preparing toner by emulsion aggregation, viscosity of dispersions is controlled during an initial reaction by using a cellulose derivative and/or a cyclodextrin derivative so that a particle diameter distribution of the toner is narrowed and environmental problems caused by the use of the toner may be reduced. | 11-03-2011 |
20110269067 | METHOD OF PREPARING TONER HAVING NARROW PARTICLE SIZE DISTRIBUTION - According to a method of preparing a toner by emulsion aggregation, viscosity of dispersions is controlled during an initial reaction by using an abietic acid so that a particle diameter distribution of the toner is narrowed. | 11-03-2011 |
20110236701 | THERMOSETTING RESIN, COMPOSITION INCLUDING THE SAME, AND PRINTED BOARD FABRICATED USING THE SAME - A thermosetting resin including at least one repeating unit represented by the following Chemical Formula 1: | 09-29-2011 |
20110232944 | LIQUID CRYSTALLINE THERMOSET OLIGOMER OR POLYMER AND THERMOSETTING COMPOSITION AND SUBSTRATE INCLUDING THE SAME - A liquid crystalline thermoset oligomer or polymer including a structural unit of Chemical Formulae 1 and 2; and a functional group of Chemical Formula A, | 09-29-2011 |
20110159424 | METHOD OF FORMING TONER IMAGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS CAPABLE OF REALIZING WIDE COLOR GAMUT - Provided are a method of forming a toner image and an electrophotographic image forming apparatus including a toner. The method of forming a toner image is performed using a first toner having a yellow color and color coordinate values of a lightness (L) ranging from 91 to 94, a redness (a) ranging from −11 to −9, and a yellowness (b) ranging from 77 to 82; a second toner having a magenta color and color coordinate values of a lightness (L) ranging from 56 to 61, a redness (a) ranging from 56 to 61, and a yellowness (b) ranging from −7 to −5; and a third toner having a cyan color and color coordinate values of a lightness (L) ranging from 58 to 62, a redness (a) ranging from −33 to −30, and a yellowness (b) ranging from −42 to −37. | 06-30-2011 |
20110116841 | TONER HAVING MULTIPLE INFLECTION POINTS ON STORAGE MODULUS CURVE WITH RESPECT TO TEMPERATURE AND METHOD OF PREPARING THE SAME - Provided are a toner and a method of preparing the same. The toner includes a binder resin, a coloring agent, and at least one additive, and a storage modulus curve of the toner with respect to temperature has multiple inflection points. The toner may be used in an electrophotographic image forming apparatus. | 05-19-2011 |
20110105777 | SILYL SUBSTITUTED 1,4-DISILACYCLOHEXANE DERIVATIVES AND PREPARATION METHOD THEREOF - The present invention relates to novel 1,4-disilacyclohexane derivatives and a preparation method thereof. More particularly, the invention provides a method for preparing 1,4-disilacyclohexane derivatives with a hexagonal ring structure at high yield through double silylation of an organosilane compound and a vinyl silane compound having an unsaturated double bond using quaternary organophosphonium salts as a catalyst. According to the present invention, tris(silyl)ethanes having three silyl groups in one molecule can be prepared at the same time and the catalyst can be recovered after reaction. Thus, the method is economical and enables mass-production of 1,4-disilacyclohexane derivatives and tris(silyl)ethanes which are precursors of organic-inorganic hybrid materials. | 05-05-2011 |
20110077420 | PRODUCTION METHOD FOR LINEAR AND CYCLIC TRISILAALKANE - The present invention relates to a preparation method for a linear or cyclic trisilaalkane which is a substance useful in the preparation of polycarbosilane and silicon carbide precursors. Linear or cyclic trisilaalkane and organic trichlorosilane derivatives can be synthesized simultaneously and in high yield by reacting bis(chlorosily)methane having a Si—H bond, either alone or together with an organic chloride, using a quaternary organic phosphonium salt compound as a catalyst. Further, since the catalyst can be recovered after use, the present invention is very economical and is thus effective for mass-producing precursors for organic/inorganic hybrid substances. | 03-31-2011 |
20110043920 | OPTICAL SHEET WITH HIGH CONTRAST RATIO AND FILTER COMPRISING THE SAME, AND IMAGE DISPLAYING DEVICE INCLUDING THE SHEET OR THE FILTER - An optical sheet for enhancing contrast ratio, a filter including the same, and an image display device including the optical sheet or the filter. The optical sheet includes: a light transmission portion including a plurality of grooves disposed at predetermined intervals in an end portion of the light transmission portion on one side; and a plurality of external light absorption portions each disposed in said each groove and comprising a composition completely or incompletely filling the groove, the composition comprising a light absorbable material, wherein at least one of the grooves comprises a recess portion formed on the top of the external light absorption portion. When used in the image display device, the optical sheet and the filter including the optical sheet can achieve a relatively high light transmission rate, prevent formation of ghost images, prevent the occurrence of the Moire phenomenon, and achieve a relatively high contrast ratio to maintain high resolution. | 02-24-2011 |
20110033207 | TONER USING RESIN BEING INSOLUBLE IN ORGANIC SOLVENTS AND METHOD FOR PREPARING THE SAME - A toner using an organic solvent-insoluble resin and a method of preparing the same. The toner includes: a binder resin that comprises an organic solvent-insoluble resin and an acid group-containing resin, a coloring agent, and at least one additive, wherein the organic solvent-insoluble resin is a crosslinked polyester resin or a cyclic olefin co-polymer (COC) resin, and the ratio of the organic solvent-insoluble resin to the acid group-containing resin is in the range of 5:95 to 40:60 on a weight basis. The toner can be applied to an electrophotographic imaging apparatus. | 02-10-2011 |
20110028643 | WAX-RESIN COMPATIBILIZER, WAX-RESIN DISPERSION INCLUDING THE WAX-RESIN COMPATIBILIZER, AND METHODS OF PREPARING THE SAME - A wax-resin compatibilizer, a wax-resin dispersion, and methods of preparing the wax-resin dispersion. The wax-resin dispersion includes a wax, the wax-resin compatibilizer, and a second resin. The wax-resin dispersion may have a high wax content and excellent storage stability. | 02-03-2011 |
20100272471 | ELECTROPHOTOGRAPHIC TONER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS USING THE SAME - Provided are an electrophotographic toner and an electrophotographic image forming apparatus using the same. The electrophotographic toner includes: parent toner particles including a binder resin, a colorant, a releasing agent, and a charge control agent; and barium titanate external additives having an average primary particle diameter in the range of about 50 to about 150 nm, an average shape factor (SF1) in the range of about 100 to about 120, a shape factor in the range of about 0.96 to about 1, and an aspect ratio in the range of about 0.89 to about 1, and added to the surface of the parent toner particles. | 10-28-2010 |
20100239972 | TONER USING RESIN HAVING ACTIVE HYDROGEN-CONTAINING GROUP AND METHOD OF PREPARING THE SAME - Provided are a toner using a resin having an active hydrogen-containing group, and a method of preparing the toner. The toner using a resin having an active hydrogen-containing group includes a binder resin (A), a cross-linked resin including a THF insoluble content of 99-100 weight %, a colorant, and at least one additive. The cross-linked resin is arranged in the form of a plurality of islands in each particle of the toner. | 09-23-2010 |
20100236820 | PREPREG HAVING UNIFORM PERMITTIVITY, AND METAL CLAD LAMINATES AND PRINT WIRING BOARD USING THE SAME - A prepreg, and a metal clad laminate and printed wiring board including the prepreg. The prepreg includes a substrate and a liquid crystal polymer resin impregnated into the substrate, and has a surface roughness in a range of 0.1 to 5.0 μm on one or both surfaces thereof. | 09-23-2010 |
20100232837 | TONER HAVING CORE-SHELL STRUCTURE AND METHOD OF PREPARING THE SAME - A toner has a core-shell structure including a toner core portion having a resin with an active hydrogenactive hydrogen containing group, a colorant and at least one additive, and a toner shell portion surrounding the toner core portion, wherein the toner shell portion includes a cross-linked resin prepared by reaction of at least a portion of the active hydrogen containing group and the cross-linking agent. | 09-16-2010 |
20100216069 | METHOD OF PREPARING TONER - Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed. | 08-26-2010 |
20100215973 | MALEIMIDE BASED COMPOUND, COMPOSITION FOR FORMING BOARD, AND BOARD FABRICATED USING THE SAME - Disclosed is a composition for forming a board. The composition includes a maleimide-based compound including at least three maleimide groups and a liquid crystalline polymer or oligomer. A prepreg and a board are each fabricated using the composition. | 08-26-2010 |
20100159231 | THERMOSETTING RESIN COMPOSITION AND BOARD USING THE SAME - Disclosed is a thermosetting resin composition including a thermosetting aromatic oligomer represented by the following Chemical Formula 1, a hollow particle, and solvent, and a board comprising the same. | 06-24-2010 |
20100155120 | THERMOSETTING OLIGOMER OR POLYMER, THERMOSETTING RESIN COMPOSITION INCLUDING THE OLIGOMER OR POLYMER, AND PRINTED CIRCUIT BOARD USING THE COMPOSITION - A thermosetting oligomer or thermosetting polymer is provided. The thermosetting oligomer or thermosetting polymer contains repeating units, each of which has at least one thermosetting functional group in the side chain and is represented by Formula 1: | 06-24-2010 |
20100139961 | COMPOSITION FOR PRODUCING A BOARD AND PRINTED CIRCUIT BOARD USING THE SAME - A composition, including a liquid crystal polymer or oligomer having a terminal hydroxyl group, and a cross-linking agent including a bismaleimide compound, an epoxy resin or a combination thereof, wherein the liquid crystal polymer or oligomer is represented by Formula 1: | 06-10-2010 |
20100124037 | THERMOSETTING COMPOSITION AND PRINTED CIRCUIT BOARD USING THE SAME - A thermosetting composition including an organic solvent, a liquid crystalline thermoset oligomer, and either a crosslinking agent or an epoxy resin or both is disclosed. A printed circuit board which includes the thermosetting composition is also disclosed. The printed circuit board is produced by impregnating the thermosetting composition into a reinforcing material. | 05-20-2010 |
20100098462 | METHOD OF PREPARING TONER USING MICRO-SUSPENSION PARTICLES AND TONER PREPARED USING THE METHOD DIGITAL IMAGE DATA - A method of preparing a toner using a micro-suspension particle, includes preparing a mixture by mixing a resin having acidic groups, a master batch of coloring pigment, and at least one additive with an organic solvent, and then neutralizing the acid groups of the resin with a base; forming a micro-suspension by adding the prepared mixture to a dispersion medium; and forming a toner composition by removing the organic solvent from the prepared micro-suspension. Therefore, the method of preparing a toner using the disclosed micro-suspension particle and a toner prepared using the same can save manufacturing costs, and can improve charging ability and cleaning properties of the toner. | 04-22-2010 |
20100055599 | METHOD OF PREPARING TONER HAVING CORE-SHELL STRUCTURE AND TONER PREPARED USING THE SAME - A method of preparing a toner having a core-shell structure. The method includes: preparing a mixture by mixing a resin with acid groups, a coloring agent and at least one additive with an organic solvent, and neutralizing the acid groups of the resin with a base; forming a micro-suspension solution by adding the mixture to a dispersion medium; forming a toner core by removing the organic solvent from the micro-suspension; and forming a toner complex having a core-shell structure by seed-polymerizing at least one monomer on the surface of the toner core. Thus, the toner that can prevent hot offsets, improve storage stability at a high temperature and improve charge stability against environment changes can be prepared with reduced costs according to the method. | 03-04-2010 |
20100046105 | Optical Sheet For High Resolution, Filter Comprising The Same, And Display Device Having The Sheet Or The Filter - Provided are an optical sheet for high resolution, a filter comprising the same, and a display device having the optical sheet for high resolution or the filter. The optical sheet for high resolution includes: a plurality of external light absorption units that are disposed separate from each other at a predetermined interval and comprise a light absorbing material; a plurality of light transmission units optically separated from each other by the external light absorption units, wherein the refractive index of the light transmission unit is smaller than the refractive index of the external light absorption unit. Thus, the optical sheet for high resolution, the filter comprising the same, and the display device having the optical sheet for high resolution or the filter can maintain high resolution by reducing generation of ghost images and moiré phenomenon and improving the contrast ratio. | 02-25-2010 |
20090212451 | Method of Preparing Wholly Aromatic Polyester - The invention relates to a method of preparing wholly aromatic polyester including: mixing monomers, introducing the mixed monomers into a reactor having a rectangular or trapezoidal plate type stirring impeller, and polymerizing the introduced monomers through esterification with a power per unit volume of 10˜60 kW/m | 08-27-2009 |
20090151987 | COMPOSITION FOR PRODUCING PRINTED CIRCUIT BOARD AND PRINTED CIRCUIT BOARD USING THE SAME - A composition for producing a printed circuit board is provided. The composition includes a polyamic acid having one or two crosslinkable functional groups introduced at one or both ends thereof, a liquid crystal polymer (LCP) or a liquid crystalline thermoset (LCT) oligomer, and an organic solvent. Therefore, the composition can be used as a material for next-generation boards that are becoming gradually lighter in weight and smaller in thickness and size. Further provided is a printed circuit board produced using the composition. | 06-18-2009 |
20090117348 | COMPOSITION FOR PRODUCING BOARD AND PRINTED CIRCUIT BOARD USING THE SAME - Compositions for producing a board and a printed circuit board produced using the composition are provided. The compositions can be used for the production of a variety of printed circuit boards. | 05-07-2009 |
20090111949 | LIQUID CRYSTAL POLYESTER RESIN COMPOSITION AND PRINTED CIRCUIT BOARD USING THE SAME - Disclosed herein is a liquid crystal polyester resin composition and a printed circuit board using the composition. The composition comprises a liquid crystal polyester, a polybenzimidazole and an aprotic solvent. The composition exhibits good thermal stability and has a low dielectric constant. The composition can be advantageously used as a material for printed circuit boards (PCBS) used in semiconductor packages, mobile devices and LCD devices. | 04-30-2009 |
20090092800 | COMPOSITION FOR PREPARING MODIFIED POLYIMIDE/CLAY NANOCOMPOSITES AND PREPARATION METHOD OF MODIFIED POLYMIDE/CLAY NANOCOMPOSITES USING THE SAME - Example embodiments provide a composition for preparing modified polyimide/clay nanocomposites. The composition comprises a modified polyamic acid terminated with groups at both ends of the backbone and a layered clay compound. Example embodiments provide a method for preparing modified polyimide/clay nanocomposites using the composition. Polyimide/clay nanocomposites prepared by the method exhibit excellent thermal properties. Therefore, the polyimide/clay nanocomposites can find many useful applications as materials for next-generation substrates that are small in size and thickness and light in weight. | 04-09-2009 |