| SK INNOVATION CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120130086 | Highly Active and Selective Ethylene Oligomerization Catalyst and Method of Preparing Hexene or Octene Using the Same - This invention relates to a chromium complex compound for selective ethylene oligomerization including a chiral ligand, and to a method of selectively preparing 1-hexene or 1-octene from ethylene using the same. | 05-24-2012 |
| 20120128944 | WIDE CASTING BELT, METHOD FOR MANUFACTURING A WIDE FILM, AND WIDE FILM - The present invention relates to a wide casting belt, and more particularly, to a wide casting belt used for manufacturing a film in a gel state by casting dope used during the manufacture of a polarizing plate for a liquid crystal display, and an optical compensation film, etc. The present invention also relates to a method for manufacturing a wide film using the wide casting belt, and to a wide film manufactured with said wide casting belt. | 05-24-2012 |
| 20120110836 | METHOD FOR PREPARING SECONDARY BATTERY - Provided is a secondary battery inner cell stack stacking apparatus and method that prepare a secondary battery inner cell stack of a Z-folding stacking format. To be specific, provided is a secondary battery inner cell stack stacking apparatus and method according to a method for performing multiple insertions on a plurality of anode plates and cathode plates at once in both sides after folding a separator in a zigzag shape in advance. | 05-10-2012 |
| 20120100048 | HIGH PERFORMANCE CHIMNEY TRAY FOR A FIXED BED REACTOR - A chimney tray for a reactor, wherein a gas reactant and a liquid reactant are mixed in chimneys to improve the dispersion performance of the liquid reactant on the catalyst bed of a fixed bed reactor thereby increasing the contact efficiency between the liquid reactant and the catalyst depending on the uniformity of flow of the liquid reactant, resulting in increased reaction efficiency, and which includes a tray having a plurality of through-holes, and a plurality of chimneys perpendicularly inserted into the through-holes of the tray and having one or more outlets penetrating there through and facing each other, wherein each of the plurality of chimneys includes a conical lower end which is formed such that it extends from the lower surface of the tray to make an angle of 10˜40° with respect to the direction of the normal line of the tray. | 04-26-2012 |
| 20120086390 | Charge Equalization Apparatus And Method For Series-Connected Battery String - Provided are a charge equalization apparatus and method for a battery string connected in series, and more particularly, are a charge equalization apparatus and method that efficiently perform charge equalization while reducing entire complexity and volume and lowering production costs through a configuration that an individual battery included in a battery string shares a single voltage sensing module and a single charge equalizing module; a switch block of a two-stage structure forms a current path for measuring voltage of individual batteries included in the battery string, and at the same time, forms a charging or discharding path of a low-charged or over-charged battery among the battery strings; and a switch device having low withstand voltage is used. | 04-12-2012 |
| 20120077914 | NOVEL PLASTICIZER FOR A POLYVINYL CHLORIDE RESIN - The present invention relates to an ester compound using alicyclic polyhydric acid and to a plasticizer for plastics, particularly, polyvinylchloride (PVC), including the ester compound More particularly, the present invention relates to a plasticizer, which is derived by the esterification reaction of alicyclic polyhydric acid and alcohol. When a polyvinylchloride resin is manufactured using the plasticizer, there are advantages in that the obtained products are excellent in terms of plasticizing efficiency, and in that their physical properties, such as hardness, tensile strength and the like, can be improved. | 03-29-2012 |
| 20120077113 | MICROPOROUS POLYETHYLENE FILM WITH THERMALLY STABLE HYBRID-COMPOSITE LAYERS - Provided is a microporous organic/ inorganic composite coated layer comprising a heat resistant resin and inorganic particles, formed on at least one side of microporous polyethylene. The microporous polyethylene composite film is characterized by sufficient permeability and heat resistance at the same time, of which the permeability (Gurley) of overall composite film including a coated layer is not more than 300 sec; shrinkage after 150° C. for 1 hour is 0-3% in both MD/TD directions; maximum shrinkage in TMA is not more than 3%, and TMA meldown temperature is 145-200° C. The microporous polyethylene composite film formed by means of the coated layer possesses stability at high temperature as well as excellent permeability, thereby ensuring reliability and efficiency of a battery at the same time. A separator which conforms to high power/high capacity can be provided thereby. | 03-29-2012 |
| 20120070677 | Flexible Metal-Clad Laminate and Manufacturing Method Thereof - Provided are a flexible metal clad laminate and a method for manufacturing the same. The flexible metal clad laminate is obtained by applying a polyimide precursor resin convertible into a polyimide resin many times onto a metal clad, followed by drying, and by converting the polyimide precursor resin into a polyimide resin through infrared ray (IR) heat treatment. The polyimide resin layer that is in direct contact with the metal clad has a glass transition temperature of 300° C. or higher, and the polyimide resin layer has an overall linear thermal expansion coefficient of 20 ppm/K or lower. It is possible to obtain a flexible metal clad laminate for flexible printed circuit boards that causes no curling before and after etching, shows a small change in dimension caused by heat treatment, and has high adhesion to a metal clad and excellent appearance after completing imidization. | 03-22-2012 |
| 20120070644 | Microporous Polyolefin Multilayer Film Possessing Good Mechanical Properties and Thermal Stability - Provided is a microporous polyolefin multilayer film which may be used as a separator for a battery, and a method for preparing the same. At least one layer of the microporous polyolefin multilayer film contains 90˜100 wt % of polyethylene having a melting temperature of 130˜140° C. and at least the other layer has 20 wt % or more of a heat resistant resin and 80 wt % or less of a filler selected from the group consisting of an organic filler, an inorganic filler and a mixture thereof. The heat resistant resin is preferably a semi crystalline polymer or an amorphous polymer. Preferably, the semi crystalline polymer has a degree of crystallinity of 10-45% or a heat of fusion for melting of 20˜90 J/g and has a melting temperature of 145˜250° C. and a glass transition temperature of −100˜90° C. Also, preferably, the amorphous polymer has no crystal and has a glass transition temperature of 90˜120° C. | 03-22-2012 |
| 20120070596 | ETHYLENE COPOLYMER WITH IMPROVED HYGIENIC PROPERTY AND PROCESS FOR PREPARING THE SAME - Provided is an ethylene copolymer having improved hygienic property. More particularly, the ethylene copolymer satisfies a correlation between a density thereof and an extract content. The ethylene copolymer having improved hygienic property can be applied in injection molding, rotation molding, or blow molding. | 03-22-2012 |
| 20120065360 | PREPARATION OF POLY(ALKYLENE CARBONATE) CONTAINING CROSS-LINKED HIGH MOLECULAR WEIGHT CHAINS - Provided is preparation of poly(alkylene carbonate) through alternating copolymerization of carbon dioxide and epoxide. According to the disclosure, by introducing a diepoxide compound to alternating copolymerization of carbon dioxide and epoxide compound using a metal(III) prepared with salen-type ligands containing quaternary ammonium salt as a catalyst, some of the polymer chains may be cross-linked to thus increase an average molecular weight of the copolymer and extend a distribution of molecular weight. A resin prepared according to this method may have high mechanical strength and rheological advantages. | 03-15-2012 |
| 20120059078 | RESIN COMPOSITION FOR SHEET PRODUCTS - Provided is a resin composition for a sheet to an eco-friendly poly(alkylene carbonate) resin composition containing a poly(alkylene carbonate) resin developed by efficiently utilizing carbon dioxide, which is a major contributor to global warming, as a main material, and including an strength controller, a flexibilizer and a filler. The present invention can solve problems related to environment harmfulness of the existing polyvinyl chloride resin products and have excellent flameproofing property and stretching property. In addition, the present invention can employ a calender processing method, which allows mass production and overcome a small production type extrusion processing method, which is regarded as the biggest disadvantage of thermoplastics emerging as alternatives for the existing polyvinyl chloride products. | 03-08-2012 |
| 20120058346 | Multilayer Film - The present invention relates to a multilayer film coextruded from an aliphatic polycarbonate and polylactic acid-based polymer and a method for producing the same. According to the present invention, a multilayer film having excellent adhesive property can be manufactured even without a separate adhesive layer. | 03-08-2012 |
| 20120041149 | ETHYLENE COPOLYMER AND A METHOD OF PREPARING THE SAME - Provided are ethylene copolymers and a process for preparing the same. More specifically, provided are ethylene copolymers exhibiting excellent processibility and physical properties due to its multimodal molecular weight distribution index, through a multi-stage process by using reactors connected in series or in parallel in the presence of catalyst composition containing transition metal catalyst, and a process for preparing the same. | 02-16-2012 |
| 20120036082 | SYSTEM FOR COLLECTING AND DISSEMINATING INFORMATION ON LOADED/EMPTY VEHICLES - The present disclosure relates to a system for collecting and providing information on loaded/empty status of vehicles, which gathers loaded and empty vehicle information via the Internet and then provides shipping arrangement agencies in various regions information on freight for which a vehicle has not been dispatched and information on empty vehicles, from information collected on loaded and empty vehicles. Accordingly, multilevel procurement for freight is avoided, and freight can be delivered to a destination in a timely manner as requested by a merchant, which reduces freight transport charges and procurement fees. | 02-09-2012 |
| 20120025144 | OUTER CASING MEMBER FOR PREVENTING ELECTRICITY LEAKAGE, AND BATTERY PACK FOR A VEHICLE COMPRISING SAME - Provided are an exterior member for preventing electric leakage and a vehicle battery pack having the same. In detail, the present invention relates to an exterior member made of a polymer material having a moisture content of 7 wt % or less and electric conductivity of 30 S/cm or less when being left for 30 days under a relative humidity of 80% or more and including input and output terminal units, and a vehicle battery pack having the same. | 02-02-2012 |
| 20120016613 | Insulation Resistance Measuring Circuit Free from Influence of Battery Voltage - Provided is an insulation resistance measuring circuit including: a source resistor unit including a first source resistor connected between a positive terminal of a battery and a second source resistor and the second source resistor connected between a negative terminal of the battery and the first source resistor; a voltage sensing unit sensing a voltage of the first source resistor as a first voltage and sensing a voltage of the second source resistor as a second voltage; and an insulation resistance measuring unit measuring an insulation resistance of the battery through a value obtained by dividing a difference between the first and second voltages by a sum between the first and second voltages. | 01-19-2012 |
| 20120015123 | Ethylene Copolymer with Improved Elasticity and Processibility - Provided is an ethylene copolymer with improved elasticity and processibility. More specifically, provided is an ethylene copolymer which exhibits a high zero shear viscosity and a large degree of shear thinning degree, and shows rheological characteristics behaviors differentiated from products manufactured by using the existing metallocene and Ziegler-Natta catalysts. In addition, provided is an ethylene copolymer which has a low processing load, shows differentiated behavior in Van-Gurp Palmen analysis, and exhibits excellent Neck-in characteristics. | 01-19-2012 |
| 20120012363 | UNCROSSLINKED POLYETHYLENE COMPOSITION FOR POWER CABLE - Disclosed is uncrosslinked linear medium-density polyethylene resin composition for a power cable, which is applicable to an insulating layer, a semi-conducting layer or a sheath layer. Specifically, the uncrosslinked polyethylene composition includes: 100 parts by weight of a polymer comprising a linear medium-density polyethylene resin comprising an α-olefin having 4 or more carbon atoms as a comonomer and having a melt index of 0.6-2.2 g/10 min (at 190° C. under a load of 5 kg), a differential scanning calorimetry (DSC) enthalpy of 130-190 joule/g and a molecular weight distribution of 2-30; and 0.1 to 10 parts by weight of one or more additive(s) selected from a flame retardant, an oxidation stabilizer, a UV stabilizer, a heat stabilizer and a process aid. | 01-19-2012 |
| 20120003520 | Lithium Secondary Battery Unit Set with Bus Bar, and Lithium Secondary Battery Set with Bus Bar - The present invention relates to a lithium secondary battery unit set where a plurality of lithium secondary batteries are stacked, and a lithium secondary battery set including a plurality of lithium secondary battery unit sets. The present invention relates to a lithium secondary battery unit set with a bus bar and a lithium secondary battery set with a bus bar. The lithium secondary battery unit set with a bus bar: accommodates and protects a plurality of lithium secondary batteries comprising a pouch and an electrode tab; facilitates the changes of voltage and capacity as the stacked structure of the lithium secondary batteries becomes free; prevents the flow of overcurrent during charging and discharging; and enables uniform temperature distribution of the stacked batteries. | 01-05-2012 |
| 20110317101 | OPTICAL COMPENSATION FILM WITH HYBRID ARRANGEMENT OF NEMATIC LIQUID CRYSTALS CONSISTING OF CONNECTED MESOGENS WITH AN ANGLE AND THE METHOD OF MANUFACTURING THE SAME - Provided are an optical compensation film and a method for producing the same. The optical compensation film includes a nematic liquid crystal compound including a compound having at least two mesogens linked to each other with a constant angle, and has hybrid alignment in which the alignment of the liquid crystal compound varies gradually along the thickness direction. | 12-29-2011 |
| 20110300596 | PREPARATION METHOD FOR ALCOHOL FROM CARBOXYLIC ACID BY ONE-STEP PROCESS - The present invention relates to a preparation method for alcohol by reacting carboxylic acid, alcohol, and hydrogen using hydrogenation catalysts. More specifically, the invention relates to a method for preparing alcohol by performing esterification and hydrocracking in a one-step process using hydrogenation catalysts instead of a two-step process. According to the invention, alcohol is prepared from carboxylic acid through esterification and hydrogenation in a one-step process using hydrogenation catalysts. Therefore, production costs and by-product treatment costs can be reduced in comparison to a two-step process. In addition, the invention is effective and economical since it can produce alcohol at relatively high yield by a simple process. Further, the invention allows high yield at relatively lower pressure when compared to alcohol production from carboxylic acid through hydrogenation without esterification and solves the problems of leaching by catalysts. | 12-08-2011 |
| 20110288354 | PROCESS FOR THE PREPARATION OF CLEAN FUEL AND AROMATICS FROM HYDROCARBON MIXTURES CATALYTIC CRACKED ON FLUID BED - This invention relates to a petroleum refining method for producing high value-added clean petroleum products and aromatics (Benzene/Toluene/Xylene) together, by which low pollution petroleum products including liquefied petroleum gas or low-sulfur gas oil and aromatics can be efficiently produced together from a fluid catalytic cracked oil fraction. | 11-24-2011 |
| 20110285352 | Charge Equalization Apparatus for Series-Connected Battery String Using Regulated Voltage Source - An automatic charge equalization apparatus using a regulated voltage source according to the present invention comprises a battery module having a plurality of batteries connected in series; a battery string having M (natural number of M≧2) battery modules connected in series: a regulated voltage source which is provided for each battery module and outputs and maintains an average voltage of the battery string; a bidirectional switch block which is provided for each battery module between the battery module and the regulated voltage source to connect each battery to an output of the regulated voltage source by forming a parallel current moving path to each battery composing the battery module; and a microprocessor controlling the bidirectional switch block, wherein each battery composing the battery module shares the regulated voltage source by the bidirectional switch block and the microprocessor controls the bidirectional switch block to successively connect the batteries composing the battery module with the regulated voltage source. | 11-24-2011 |
| 20110251355 | Block and Graft Copolymers of Poly(Alkylene Carbonate) and Various Polymers - Provided is preparation of poly(alkylene carbonate) by alternating copolymerization of carbon dioxide and epoxide. To be specific, provided are a method for preparing block or graft copolymers of the polymer compound and poly(alkylene carbonate) by alternating-copolymerization of an epoxide compound and carbon dioxide by using a metal (III) compound prepared from salen-type ligand with a quaternary ammonium salt as a catalyst in the presence of a polymer compound having a functional group of hydroxyl or carboxylic acid, and block or graft copolymers prepared by the method. | 10-13-2011 |
| 20110207979 | METHOD FOR PRODUCING HIGH VALUE AROMATICS AND OLEFIN FROM LIGHT CYCLE OIL PRODUCED BY A FLUIDIZED CATALYTIC CRACKING PROCESS - The present invention relates to a method of producing aromatic products (benzene/toluene/xylene) and olefin products from petroleum fractions obtained by fluid catalytic cracking, and, more particularly, to a method of producing products comprising high-concentration aromatic products and high value-added light olefin products from light cycle oil obtained by fluid catalytic cracking. | 08-25-2011 |
| 20110207909 | Catalytic System of Nitrate Anions for CO2/ Epoxide Copolymerization - This invention relates to a Salen type ligand including three or more quaternary ammonium salts of nitrate anions, to a trivalent metal complex compound prepared from this ligand and a method of preparing the same, to a method of preparing polycarbonate by copolymerizing an epoxide compound and carbon dioxide using the complex compound as a catalyst, and to a method of separating and collecting the catalyst from the copolymer after copolymerization. This catalyst used to copolymerize an epoxide compound and carbon dioxide can be more simply prepared, and has lower catalyst preparation and recovery costs, and higher activity, compared to conventional catalysts. | 08-25-2011 |
| 20110178186 | Preparation Methods for Liquid Hydrocarbons by Fischer-Tropsch Synthesis Through Slurry Reaction - The present invention relates to a method for preparing liquid hydrocarbons via a slurry phase Fischer-Tropsch (F-T) synthesis. In particular, the present invention relates to a method for preparing liquid hydrocarbons from syngas via slurry phase F-T synthesis using a catalyst, which can prevent the decrease in catalyst activity and filter clogging due to catalyst aggrega-tion, simultaneously with improving selectivity for C | 07-21-2011 |
| 20110170271 | Fixing Structure of Multi-Layer Printed Circuit Board - The present invention relates to a fixing structure of a raulti-layer printed circuit board, and more particularly, to a fixing structure of a multi-layer printed circuit board, which has a simple structure and a high fixing force using a printed circuit board fixing portion having slots. | 07-14-2011 |
| 20110163010 | METHOD AND APPARATUS FOR RECOVERING HYDROGEN IN A PETROLEUM-BASED HYDROCARBON DESULFURIZATION PROCESS - Disclosed herein is a method and apparatus for recovering hydrogen in the process of desulfurizing petroleum hydrocarbon, in which hydrogen is recovered from the fuel fraction obtained by hydrodesulfurization, and the recovered hydrogen is reused, so that the existing hydrodesulfurization equipment for producing ultralow-sulfur diesel fuel can be utilized to the utmost and simultaneously the effluence of hydrogen from fuel fraction can be minimized, thereby reducing production costs. | 07-07-2011 |
