LOTTE CHEMICAL CORPORATION Patent applications |
Patent application number | Title | Published |
20160122570 | THERMOPLASTIC RESIN COMPOSITION FOR 3D PRINTER - Disclosed are a composition for 3D printer filaments satisfying requirements as a 3D printing material and a filament for a 3D printer manufactured using the same. A composition for 3D printer filaments including a polymer base containing atactic polypropylene having a weight average molecular weight of 50,000 to 1,000,000, a density of 0.8 to 0.9 g/ml, and isotacticity (Pentad I.I, mmmm) of 5 to 20%. The melting index (210° C., 2.16 kg) of the polymer base is 0.5-30 g/10 minutes, and a filament for a 3D printer manufactured using the same are provided. | 05-05-2016 |
20160074848 | ETHANOL DEHYDRATION CATALYST FOR ENERGY SAVING AND METHOD OF MANUFACTURING ETHYLENE USING SAME - Provided are an ethanol dehydration catalyst having a high ethylene yield even at a low temperature region, as an ethanol dehydration catalyst for converting a feedstock including anhydrous ethanol or hydrous ethanol to ethylene, and a method of preparing ethylene by using the same. In the ethanol dehydration catalyst for converting a feedstock including anhydrous ethanol or hydrous ethanol to ethylene of the present invention, the catalyst includes 0.1 wt % to 0.5 wt % of lanthanum (La) or 0.05 wt % to 1 wt % of gallium (Ga) in ZSM-5. | 03-17-2016 |
20150353678 | HIGH-MOLECULAR WEIGHT ALIPHATIC POLYCARBONATE PREPARED USING BASE CATALYST - An aliphatic polycarbonate is disclosed in which a salt consisting of a metal or onium cation and an anion having a pKa not greater than 3 is dispersed. The aliphatic polycarbonate includes repeating units of Formula 1: [-A-OC(O)O-] (wherein A is a substituted or unsubstituted C | 12-10-2015 |
20140378595 | POLYLACTIC ACID STEREOCOMPLEX RESIN COMPOSITION HAVING IMPROVED CRYSTALLIZATION RATE AND METHOD FOR MOLDING THE SAME - A molding method for obtaining a polylactic acid stereocomplex resin composition solving a limitation according to application of a typical polylactic acid resin composition. The molding method includes an environmentally-friendly material, and having excellent heat resistance and impact resistance. The polylactic acid stereocomplex resin composition includes about 40 to about 91.9 wt % of a crystalline poly L-lactic acid, about 3 to about 50 wt % of a crystalline poly D-lactic acid, about 5 to about 30 wt % of an impact modifier, and about 0.1 to about 2 wt % of a nucleating agent, and a method for molding the same. | 12-25-2014 |
20140221537 | FLAME RETARDANT POLYAMIDE RESIN COMPOSITIONS - Disclosed is a flame retardant polyamide resin composition, and more particularly, a flame retardant polyamide resin composition having improved flame retardancy and further having improved strength, heat resistance, moisture absorption resistance, dimensional stability, and the like by including a polyamide nanocomposite in which an organized layered clay compound is contained by in-situ polymerization, a filler, and a phosphorus-based flame retardant. The composition has high economic efficiency because the composition is lighter and has a lower production cost than flame retardant materials in the related art. | 08-07-2014 |
20140179952 | CATALYST FOR REDUCTIVE AMINATION-REACTION AND USES THEREOF - The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show high amine conversion rate because it can maintain the catalytic activity even in the presence of moisture especially while maintaining the balance of dehydrogenation and hydrogenation reaction basically. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture. | 06-26-2014 |
20140162104 | Battery Electrode Material Formulation and Manufacturing Process - An improved chemical composition and manufacturing process for a battery electrode are disclosed. This battery electrode may be later arranged in flowing electrolyte battery cells. Battery electrode material formulation may include a mixture of polypropylene, carbon black, graphite, bonding additives and other substances in different concentrations. The inclusion of graphite may reduce the amount of carbon black in the mixture, thereby reducing the swelling of the battery electrode in the presence of bromine. Moreover, material formulation may reduce warpage caused by the swelling of electrode material, and may additionally improve the performance and properties of flowing electrolyte batteries. An extrusion molding process may be employed in order to fabricate the disclosed battery electrode. | 06-12-2014 |
20140162096 | Battery Flow Frame Material Formulation - Disclosed herein are formulation components for the manufacturing of a flow frame structure that can be integrated in flowing electrolyte batteries. These formulation components for manufacturing flow frames may include, but are not limited to, polypropylene, glass fiber, a coupling agent and an elastomer. A mixing and extrusion process may be employed to formulate the material and produce pre-formulated pellets for the manufacturing of flow frames. As flow frames may be integrated with electrodes (or membranes), the disclosed flow frame formulation may achieve a desired Melt Flow Index (MFI) range and may allow an improved bonding between electrodes (or membranes) and flow frame, therefore, simplifying manufacturing process and achieving higher performance and longer lifetime of flowing electrolyte batteries. | 06-12-2014 |
20140084215 | CONDUCTIVE RESIN COMPOSITION - Disclosed herein is a conductive resin composition. The conductive resin composition includes a polyolefin resin, a specific compatibilizer, and polyaniline nanofibers. The conductive resin composition may provide a resin molded article having high conductivity and heat resistance together with excellent antistatic properties while securing high compatibility between respective components. | 03-27-2014 |
20140054907 | BUMPER BEAM ASSEMBLY SYSTEM - Provided is a bumper beam assembly system. The A bumper beam assembly system includes a bumper beam and a stay connecting the bumper beam to a vehicle, wherein the stay is replaceably coupled to both sides of the bumper beam to occupy a corner portion of the bumper beam. | 02-27-2014 |
20130211023 | SUPPORTED CATALYST FOR OLEFIN POLYMERIZATION AND PREPARATION METHOD FOR POLYOLEFIN USING THE SAME - The present invention relates to a supported catalyst for olefin polymerization to which a novel transition metal compound and a co-catalyst compound are bound, and a preparation method for polyolefin using the supported catalyst. The transition metal compound bound to the catalyst of the present invention provides high activity for olefin-based monomers in heterogeneous reaction as well as in homogeneous system. Particularly, a polyolefin with higher molecular weight can be prepared by using the supported catalyst containing the transition metal compound bound to a support, rather than using the novel transition metal compound in a non-supported status, or the conventional transition metal compound in a supported or non-supported status. | 08-15-2013 |
20130211021 | METHOD FOR PREPARING POLYPROPYLENE USING TRANSITION METAL COMPOUND CONTAINING THIOPHENE-FUSED CYCLOPENTADIENYL LIGAND - The present invention relates to a preparation method for polypropylene that comprises polymerizing a propylene monomer in the presence of a catalyst comprising a novel transition metal compound. Using the novel transition metal compound as a catalyst, the preparation method for polypropylene according to the present invention can not only acquire high catalytic activity for polymerization to achieve high efficiency of the process but allow it to easily control the fine-structure characteristics of the polymer, thereby providing polypropylene having desired properties with ease. | 08-15-2013 |
20130211020 | CATALYST COMPOSITION FOR OLEFIN POLYMERIZATION AND PREPARATION METHOD FOR POLYOLEFIN USING THE SAME - The present invention relates to a catalyst composition comprising a novel transition metal compound and a preparation method for polyolefin using the same. The catalyst composition of the present invention has high catalytic activity for polymerization of olefin-based monomers and enables it to control the fine-structure characteristics of the polyolefin, such as molecular weight distribution, in a wide range, thereby easily providing a polyolefin with desired properties. | 08-15-2013 |
20130154287 | CRASH BOX FOR A VEHICLE - Disclosed is the outer support member and the inner support member each have a vertical wall and upper and lower horizontal walls. The vertical walls of the outer support member and inner support member are formed on the outer surfaces of the respective support members. The inner edges of the upper and lower horizontal walls are inclined from the rear portions thereof toward front center portions thereof. Thus, the performance of the crash box of the present invention may satisfy the requirements for both an offset test and a barrier test, reduce the weight of the bumper beam assembly to thereby reduce costs, and improve the performance and fuel efficiency of the vehicle. | 06-20-2013 |