Patent application number | Description | Published |
20090002613 | Retardation Compensators of Negative C-Type For Liquid Crystal Display - Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarylate having a thio group or a sulfur oxide group in a polymer main chain thereof. Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction than a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays. | 01-01-2009 |
20090036634 | Process for Preparing Polyarylate - The present invention relates to a process for preparing polyarylate, and more specifically, to a process for preparing polyarylate by interfacial polymerization of a bivalent phenol compound and an aromatic dicarboxylic acid or a halide thereof, which comprises mixing a cationic catalyst for the phase transition and a nonionic surfactant in a predetermined ratio, to further increase the yield of polyarylate, as compared with the case of using each of the nonionic surfactant and the cationic catalyst for the phase transition alone. | 02-05-2009 |
20100028566 | OPTICAL FILMS RESIN COMPOSITION COMPRISING POLYARYLATE RESIN AND AMINO RESIN HAVING TRIAZINE STRUCTURE, AND OPTICAL FILMS PREPARED BY USING THE SAME - The present invention relates to a resin composition for an optical film, comprising a polyarylate resin and an amino resin having a triazine structure, and to an optical film prepared by using the same. By using the resin composition for an optical film, a thickness direction retardation can be controlled, while having a negative value, during a step of fabricating the optical film, an in-plane retardation can be controlled, and the optical film can be used as a substrate of a display instead of a glass substrate without an additional retardation compensation film. | 02-04-2010 |
20100136308 | MULTIPLE-LAYER, MULTIPLE FILM HAVING THE SAME AND ELECTRONIC DEVICE HAVING THE SAME - The present invention provides a multiple layer that comprises two or more first inorganic material layers; and one or more second inorganic material layers that are positioned between the two first inorganic material layers and have the thickness of more than 0 nm and less than 5 nm, in which the first inorganic material layer is formed of one or more materials that are selected from silicon oxides, silicon carbide, silicon nitride, aluminum nitride and ITO, and the second inorganic material layer is formed of one or more materials that are selected from magnesium, calcium, aluminum, gallium, indium, zinc, tin, barium, and oxides and fluorides thereof, a multiple film that comprises the multiple layer, and an electronic device that comprises the multiple film. | 06-03-2010 |
20100286302 | CURING COMPOSITION AND CURED PRODUCT PREPARED BY USING THE SAME - The present invention relates to a curing composition comprising a polyarylate having epoxy group and a cyanate ester resin, and a cured product prepared by using the same. The curing composition according to the present invention is used to provide a cured product which is excellent in terms of heat resistance and toughness. | 11-11-2010 |
20110052890 | COMPOSITE MATERIALS, COMPOSITE FILM MANUFACTURED BY USING THE SAME AND METHOD FOR MANUFACTURING COMPOSITE FILM - The present invention provides a composite material comprising a glass cloth; and an organic- inorganic hybrid composition comprising diphenylsilanediol and alkoxy si lane, a composite film manufactured by using the same, and a method for manufacturing the composite film. | 03-03-2011 |
20110287221 | MULTILAYER FILM AND A PRODUCTION METHOD FOR SAME - Disclosed is a multi-layer film including a polymer substrate and buffer layers formed on the top surface and the bottom surface of the polymer substrate using a UV-cured and thermally cured product of a UV-curable and thermally curable buffer composition. A method for producing the multi-layer film is also disclosed. | 11-24-2011 |
20110287233 | LAMINATED PLASTIC SUBSTRATE, AND A PRODUCTION METHOD FOR THE SAME - The present invention provides a multilayered plastic substrate that simultaneously satisfies improvement in high temperature thermal deformation according to low linear expansion coefficient and excellent dimensional stability and excellent gas barrier property, and is capable of being used instead of a glass substrate that has brittleness and heavy disadvantages without a problem caused by a difference in linear expansion coefficient between layers, and a method for manufacturing the same. | 11-24-2011 |
20120193768 | MULTIPLE-LAYER, MULTIPLE FILM HAVING THE SAME AND ELECTRONIC DEVICE HAVING THE SAME - The present invention provides a multiple layer that comprises two or more first inorganic material layers; and one or more second inorganic material layers that are positioned between the two first inorganic material layers and have the thickness of less than 5 nm, in which the first inorganic material layer is formed of one or more materials that are selected from silicon oxides, silicon carbide, silicon nitride, aluminum nitride and ITO, and the second inorganic material layer is formed of one or more materials that are selected from magnesium, calcium, aluminum, gallium, indium, zinc, tin, barium, and oxides and fluorides thereof, a multiple film that comprises the multiple layer, and an electronic device that comprises the multiple film. | 08-02-2012 |
20120252969 | NOVEL POLYARYLATE AND METHOD FOR PREPARING THEREOF - The present invention relates to a polyarylate prepared by a method comprising a step of copolymerizing divalent phenol, divalent aromatic carboxylic acid halide and the allyl bisphenol derivative. The polyarylate according to the invention is a novel polyarylate in which various functional groups can be introduced to the main chain of the polymer as well as the terminal of a polymer, and the concentration thereof can be adjusted. These functional groups allow improvement in the adhesion force by chemically bonding with the substrate or protective layer when coated, thus the polyarylate is suitably used for a film or a coating composition. | 10-04-2012 |