SKC CO., LTD Patent applications |
Patent application number | Title | Published |
20150017395 | CUT-OUT LAMINATED SHEET AND PREPARATION METHOD THEREOF - A cut-out laminated sheet can be prepared by laminating a protection sheet on a base sheet, followed by a simple two-step shearing process. The cut-out laminated sheet thus prepared features a protruding section that helps improving productivity by making the removal of the protection sheet easy; and thus, can be effectively used in a wide range of industrial applications such as a brittle sheet and a flexible sheet. | 01-15-2015 |
20140316022 | Optical Film and Preparation Method Thereof - Disclosed are an optical film and a preparation method thereof. The optical film comprises a base layer, a plurality of polymer particles disposed in the base layer, and voids formed in the base layer and enclosing the respective polymer particles, wherein the polymer particles comprise a crosslinked polymer. The optical film has uniform voids, enhanced processing and dimensional stabilities, as well as improved optical properties such as whiteness, hiding power, reflectance and the like. Thus, the optical film can be useful for a reflector sheet for a BLU of an LCD device, and the like. | 10-23-2014 |
20130310490 | ENVIRONMENTALLY FRIENDLY HEAT-SHRINKABLE FILM - A heat-shrinkable film comprising an aliphatic polycarbonate, wherein the film is uniaxially or biaxially oriented, and exhibits a heat-shrinkage of at least 30% in at least one direction when treated with hot air at 70° C. for 10 min, has an improved transparency and good heat-shrinkability which can be used for various purposes such as a label or wrapping material. | 11-21-2013 |
20130295355 | MULTILAYERED BIODEGRADABLE FILM - A multilayered biodegradable film comprising at least one first resin layer and at least one second resin layer, wherein the first and second resin layers are alternately layered; the first resin layer comprises a polylactic acid-based polymer; the second resin layer comprises an aliphatic polyester-based resin or an aliphatic-aromatic copolymerized polyester-based resin; and the film has a coloring peak value of 0.3 or less, a haze of 10% or less, and an elastic modulus of 300 kgf/mm | 11-07-2013 |
20130274434 | HEAT-SHRINKABLE POLYESTER FILM - Disclosed is a heat-shrinkable polyester film having a heat shrinkage initiation temperature of 60° C. or lower, a glass transition temperature (Tg) of 77° C. or lower and a heat shrinkage rate of 2% or more at 60° C. which has relatively low glass transition temperature and heat shrinkage initiation temperature, and thus can be useful as a label for a high-density polyethylene (HDPE) container and the like. | 10-17-2013 |
20130220179 | SOLVENT FOR HEAT-SHRINKABLE POLYESTER-BASED LABELS - A solvent comprising 40 to 100 wt % of 1,3-dioxolane and 0 to 60 wt % of tetrahydrofuran, wherein the solvent further comprises 30 ppm to 800 ppm of an antioxidant, based on the total weight of the solvent, provides a long shelf life with good adhesive strength even after exposure to air. The solvent can be effectively used for labeling of heat-shrinkable polyester-based labels. | 08-29-2013 |
20130160924 | HOT AIR TUNNEL SYSTEM APPARATUS AND LABELING METHOD USING SAME - A hot air tunnel system apparatus comprising a preheating zone, a labeling zone, and a cooling zone with a transporting member provided through the lower parts of said zones to convey a product to be labeled from the preheating zone to the cooling zone, wherein each zone is equipped with fan heaters on both sides and on the bottom thereof, and also equipped with an air circulation system on the top thereof, which can minimize such labeling defects as loose labels, film curl, and irregular shrinkage when polyethylene-based products are labeled with heat-shrinkable labels. | 06-27-2013 |
20130122370 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING PHOSPHATE FLUORIDE AND PREPARATION METHOD THEREOF - Provided is a cathode active material for lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatment process, which has improved lifecycle and stability so that it can be used to improve efficiency of lithium secondary battery: | 05-16-2013 |
20130112926 | Composition of Polythiophene-Based Conductive Polymers Having High Conductivity, Transparency, Waterproof Property and a Membrane Prepared Using the Same - The present invention relates to a polythiophene-based conductive polymer composition having high conductivity, transparency, waterproof property and durability, and a polymer membrane prepared by using the same. In particular, the present invention relates to a polythiophene-based conductive polymer composition comprising an aqueous solution of a polythiophene-based conductive polymer, an alcohol-based organic solvent, an amide-based organic solvent or an aprotic highly-dipolar solvent, a melamine resin and a binder selected among a polyester, a polyurethane resin and an alkoxy silane in a predetermined mixed ratio. The membrane prepared using the same has a high conductivity of less than 1 kΩ/m | 05-09-2013 |
20130017382 | DOUBLE WAVELENGTH-REFLECTIVE MULTI-LAYER FILMAANM Woo; Se YoonAACI SeoulAACO KRAAGP Woo; Se Yoon Seoul KRAANM Lee; Gwan-HyungAACI Suwon-siAACO KRAAGP Lee; Gwan-Hyung Suwon-si KRAANM Joo; Cheon YongAACI SeoulAACO KRAAGP Joo; Cheon Yong Seoul KRAANM Pak; Hyung SukAACI Hwaseong-siAACO KRAAGP Pak; Hyung Suk Hwaseong-si KRAANM Son; Byoung KukAACI SeoulAACO KRAAGP Son; Byoung Kuk Seoul KRAANM Shin; Dae YongAACI IncheonAACO KRAAGP Shin; Dae Yong Incheon KR - A double wavelength-reflective multi-layer film comprising a reflective layer part composed of at least one resin layer A and at least one resin layer B which are alternatively stacked, the resin layers A and B having refractive indexes different from each other and having a standard deviation in the thickness ranging from 6 to 30 nm, wherein the multi-layer film has an f-ratio of 0.01 to 0.99, is capable of reflecting two visible light wavelength regions in the form of one stack. | 01-17-2013 |
20120267076 | SYSTEM FOR RECOVERING WASTE HEAT - Provided is a system for recovering waste heat discharged from distillation columns, incinerators, blast columns, smelting columns, and the like at relatively low temperatures to produce hot water in high efficiency, which can be used in various industrial fields. The investment and operating costs of the waste heat recovery system are relatively low as compared with the conventional systems. | 10-25-2012 |
20120207993 | MULTILAYERED OPTICAL FILM, AND PREPARATION METHOD THEREOF - A multilayered optical film has a structure in which a first resin layer comprising PEN and a second resin layer comprising PET copolymerized with heterocyclic polyvalent alcohol are alternatively laminated. The multilayered optical film has excellent optical characteristics because of having excellent heat resistance, showing excellent elongation in case of preparation, having low haze, and having a large difference in a refractive index between resin layers. | 08-16-2012 |
20120082785 | BIAXIALLY ORIENTED POLYESTER FILM AND PREPARATION METHOD THEREOF - A back sheet for a solar cell, consisting of a polyester comprising at least one repeating unit of trimethylene naphthalate and trimethylene terephthalate in an amount of 85% by weight or more, has improved hydrolysis-resistance and is useful in the field requiring weatherability. | 04-05-2012 |
20120034453 | LAYER AND STRUCTURE USING COMPOSITION OF CONDUCTIVE POLYMERS - Provided are a polymer layer using a conductive polymer solution composition and a film or sheet structure using the polymer layer. On a film or sheet substrate, an organic polymer layer of polyurethane, acryl, polyester or melamine with superior flexibility and durability is formed, and then a polythiophene-based conductive polymer layer including an aqueous solution of a polythiophene-based conductive polymer, an alcohol organic solvent, an amide organic solvent or an aprotic highly dipolar solvent and a binder selected from melamine resin, polyester, polyurethane, polyacryl resin and alkoxysilane is formed thereon. The resulting layer has high conductivity and high transparency as well as strong moisture resistance and durability. Since surface transparency and conductivity are sustained even under hot and humid environment, it is usefully applicable as upper and lower electrode film of a touch panel, electrode film of an inorganic electroluminescent (EL) device of a mobile phone, transparent electrode film of a display device or electromagnetic interference (EMI) shielding layer of a TV or a PC monitor | 02-09-2012 |
20110237759 | HEAT-SHRINKABLE POLYESTER FILM AND PREPARATION METHOD THEREOF - A heat-shrinkable polyester film having a thermal shrinkage ratio of 15% or more in the longitudinal direction when treated at 100° C. for 10 seconds, a tensile strength at rupture in the longitudinal direction of 7 kgf/mm | 09-29-2011 |
20110224369 | HEAT-SHRINKABLE POLYESTER FILM - A heat-shrinkable polyester film having a heat-shrinkage change per degree Celsius (%/° C.) along the main shrinkage direction of 1.5 to 3.0 in the range of 60° C. to 70° C., 2.5 to 3.5 in the range of 70° C. to 80° C., 1.0 to 2.0 in the range of 80° C. to 90° C., and 0.1 to 1.0 in the range of 90° C. to 100° C., has a good appearance quality after shrinkage and thus suitable for a wrapping material, particularly a label for a bottle. | 09-15-2011 |
20110203642 | ENVELOPE MATERIAL SHEET FOR SOLAR CELL MODULE AND SOLAR CELL MODULE INCLUDING SAME - An encapsulant sheet for solar cell modules comprising a transparent soft resin film having a plurality of hemispherical concave parts of varying sizes formed on one or both surfaces of the transparent soft resin film, can disperse pressure generated in the process of combining the encapsulant sheet and a solar battery cell to prevent damage to the solar battery cell and suppress bubble generation by allowing air to escape easily. | 08-25-2011 |
20110195255 | POLYTHIOPHENE-BASED CONDUCTIVE POLYMER MEMBRANE - The present invention relates to a polythiophene-based conductive polymer membrane, which has a conductivity of 1 KΩ/m | 08-11-2011 |
20110192459 | MULTILAYERED WEATHERABLE FILM FOR SOLAR CELL - Disclosed is a multilayered weatherable film for a solar cell, which has superior elongation change rate, strength change rate and haze and thus is suitable for use in a solar cell, and includes a hard layer having a polyester or copolyester polymer resin and a soft layer having polybutylene terephthalate containing polytetramethylene ether glycol, which are regularly or irregularly laminated in a multilayer form. | 08-11-2011 |
20110077419 | DOUBLE METAL CYANIDE CATALYST HAVING A CONTROLLED REACTIVITY FOR PREPARING A POLYOL AND PREPARATION THEREOF - A double metal cyanide catalyst of the present invention having a controlled reactivity for preparing a polyol, which contains an ether ligand having a molecular weight of less than 200 and a glycol ligand having a molecular weight of less than 200 can be used in the preparation of a polyol having a unsaturation degree suitable for direct use for producing a polyurethane having suitable properties. | 03-31-2011 |
20110065893 | HEAT-SHRINKABLE POLYESTER FILM - The present invention relates to a heat-shrinkable polyester film, which has a heat-shrinkage of 20% or more in both the longitudinal and transverse directions when treated with 80° C. water for 30 seconds and a bidirectional balance parameter in the range of 0.25 to 2.5 and exhibits an excellent properties in die-cutting and removing from a container such as a glass bottle for recycling by washing with hot water. | 03-17-2011 |
20110046254 | WHITE POROUS POLYESTER FILM AND PREPARATION METHOD THEREOF - A white porous polyester film of the present invention comprising a polyester-based monopolymer/copolymer blend, a crystalline polymer resin which is not miscible with a polyester and has a heat deformation temperature of 90° C. or higher, inorganic particles, a whitening agent, and a stabilizing agent has improved optical properties, and thus is useful as a film for use in printing, labeling, electronics, and display applications. | 02-24-2011 |
20100304127 | Multi-layer Polymer Film For Printing and Copying - A multi-layer polymer film for printing and copying of the present invention comprising a two-layer polymer base film composed of layer A and layer B laminated on one side of the layer A, the layer B containing a filler in an amount of 50 to 3000 ppm and the layer A containing no filler or a filler in an amount of at least 1000 ppm and less than the B layer; an image receiving layer coated on the exposed surface of the layer A; and an antistatic layer coated on the exposed surface of the layer B, wherein the layer A having the image receiving coating layer and the layer B having the antistatic coating layer have average degrees of surface roughness (Ra) ranging from 10 to 60 nm and 50 to 150 nm, respectively, exhibits improved properties in terms of runnability, printing, optical (haze), antistatic, friction coefficient and anti-blocking properties, which can be advantageously used as an OHP film. | 12-02-2010 |
20100233498 | Multilayered Aliphatic Polyester Film - A multilayered aliphatic polyester film including a first resin layer and a second resin layer laminated on one or both sides of the first resin layer, each of the resin layers including a polylactic acid-based polymer in an amount of 50% by weight or more, exhibits improved mechanical property, dimensional stability, transparency, flexibility, and heat adhesiveness, which is useful for environmentally friendly packaging. | 09-16-2010 |
20100055428 | MULTILAYERED ALIPHATIC POLYESTER FILM - A multilayered aliphatic polyester film of the present invention comprising a first resin layer and a second resin layer laminated on one or both sides of the first resin layer, the first resin layer containing a polylactic-based polymer comprising L-lactic acid in an amount ranging from 50 to 100% by weight, and the second resin layer containing a polylactic-based polymer comprising D-lactic acid in an amount ranging from 5 to 20% by weight, can be easily peeled off by pulling with hands, and has improved heat adhesiveness, heat resistance, transparency, impact resistance, perforation resistance and dimensional stability. Accordingly, it is useful for packaging materials, especially as a disposable film lid for plastic containers. | 03-04-2010 |
20090240024 | BIAXIALLY ORIENTED POLYESTER FILM AND PREPARATION THEREOF - A biaxially oriented polyester film of the present invention which comprises a polyester resin prepared by polymerizing a glycol component mainly comprising 1,3-propanediol and an acid component mainly comprising terephthalic acid or dimethyl terephthalate, said polyester film having an unit impact absorption energy of 1.0 or more, can be advantageously used for packaging. | 09-24-2009 |
20090042015 | WHITE, POROUS, SINGLE-LAYER POLYESTER FILM AND METHOD FOR PREPARING SAME - The present invention relates to a white, porous, single-layer polyester film comprising a polyester resin, particles of a noncrystalline polymer which has a heat deformation temperature higher than the temperature of the drawing process of said film by at least 10° C. and is not miscible with the polyester resin, inorganic particles and a whitening agent. The inventive single layer film has sufficient process stability as well as good optical properties, and thus is useful as a film for use in printing, labeling, electronics and display applications. | 02-12-2009 |