Abstract:
PROBLEM TO BE SOLVED: To provide a process for producing 3,3'-bis(trifluoromethyl)hydrazobenzene which is used as a raw material for 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl useful as a raw material for a polyimide, by using m-nitrobenzotrifluoride as a starting material. SOLUTION: In the process for preparing 3,3'-bis(trifluoromethyl)hydrazobenzene by subjecting m-nitrobenzotrifluoride to zinc reduction in the presence of an organic solvent, water is allowed to be present in the organic solvent. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a gelatin molded product comprising a base in a state with little deterioration and capable of sustainedly releasing the base over a long period of time and to provide a method for producing the molded product. SOLUTION: The gelatin molded product comprises gelatin and the base dispersed in the gelatin which is cross-linked only in a surface layer of the molded product. The method for producing the gelatin molded product comprises a mixture fluid preparing step of preparing the mixture fluid containing the base and the gelatin, a molding step of molding the mixture fluid, a gelation step of cooling the gelatin in the mixture fluid, making the gelatin gel and thereby preparing a mixture gel and a cross-linking step of adding a cross-linking agent to the mixture gel, advancing a cross-linking reaction of the mixture gel kept in a gelled state and thereby cross-linking the gelatin only in the surface layer of the mixture gel. As a result, the gelatin molded product in which the gelatin is cross-linked only in the surface layer is produced by the steps. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a surface treatment method for a TAC (triacetyl cellulose) film which can improve the adhesion of the TAC film and the durability of a polarizing plate, and to provide a polarizing plate using the TAC film surface-treatmented by using the method. SOLUTION: The surface treatment method of a TAC film comprises a first process which brings the surface of the TAC film into contact with the electric discharge plasma of a gas containing oxygen and a second process which brings the surface of the TAC film after the first process into contact with an aqueous alkaline solution. In addition, the polarizing plate using the TAC film in which the surface treatment is carried out by the method is provided. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive method for producing 5-methylnicotinic acid by using 3,5-dimethylpyridine as a raw material by simpler operation. SOLUTION: The method for producing the 5-methylnicotinic acid includes oxidizing the 3,5-dimethylpyridine in a solvent containing a lower aliphatic monocarboxylic acid in the presence of a catalyst containing cobalt, manganese and bromine in a liquid phase by molecular oxygen. By the production method, the load even in a waste material disposal field is reduced because the used oxidant is air, and the used catalyst can act by a little and can be used by recycling. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a plasma display panel wherein a time required for aging can be further shortened, and the plasma display panel obtained by the method. SOLUTION: In manufacturing of a front plate composing the plasma display panel, after providing a protective layer made of magnesium oxide in a protective film forming chamber 1, a fluorocarbon protective film is formed on the surface of the protective layer in a fluorocarbon protective film forming chamber 3 without bringing the protective layer into contact with moisture and carbon dioxide. This fluorocarbon protective film is removed in a later aging process, and magnesium oxide is disclosed. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering ammonia where high purity ammonia is recovered from an exhaust gas exhausted from nitride semiconductor fabrication equipment in such a manner that the concentration of impurities is reduced at most to ≤50 ppb, to provide a method for reutilizing ammonia, to provide an ammonia recovery system, and to provide an ammonia reutilization system. SOLUTION: The method for recovering ammonia is provided with: a stage where a reaction product of ammonia and organic metals, and organic metals are removed from an ammonia-containing exhaust gas exhausted from nitride semiconductor fabrication equipment 11, so as to obtain a gaseous mixture; a stage where crude gaseous ammonia is separated from the gaseous mixture; a stage where the crude gaseous ammonia is liquified, so as to obtain liquified crude ammonia; and a stage where the liquified crude ammonia is distilled, thus impurities are removed from the liquified crude ammonia, so as to obtain high purity ammonia. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an air component control method for a working atmosphere, not requiring a second protective film on the surface of a protective layer, and dispensing with an aging process, or remarkably reducing the time required for aging. SOLUTION: A vacuum chamber 6 for forming an MgO protective layer on a front plate and a sealing device 7 for sealing a back plate on the front plate are installed in a clean room 5. An artificial air manufacturing apparatus 3 is connected to the clean room 5, and a worker 1 wears a specific protector 2. The protector 2 includes a face body 21 covering at least the nose and mouth of the face and a hose 22 communicating the inside of the face body 21 with the outside of the clean room 5. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a green emission phosphor which can emit a greenish light superior in color purity and color rendering properties, a method of manufacturing the green emission phosphor, and a white light emitting device using the green emission phosphor. SOLUTION: The green emission phosphor emits a light having a wavelength of 525-575 nm by being irradiated with a light having a wavelength of 460-470 nm, and contains a chloride as a matrix and a rare earth element ion as an activation agent. The green emission phosphor is manufactured by mixing a matrix raw material, for example yttrium trichloride and an activation agent raw material containing a rare earth element, baking them and pulverizing them, furthermore baking them again; and is used for the white light emitting device. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a 9,9-bis(aminoalkyl)fluorene compound useful as a raw material for a polyamide and polyimide in a short time efficiently. SOLUTION: A 9,9-bis(cyanoalkyl)fluorene compound is hydrogenated in an alcohol containing ammonia in the presence of a sponge cobalt catalyst at 70-150°C reaction temperature under 0.5-30 MPa hydrogen pressure to produce a corresponding 9,9-bis(aminoalkyl)fluorene compound. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a light-emitting device that highly efficiently emits infrared region light having a wavelength of ≤10 μm with a simple constitution, and is usable as a laser light source capable of continuously oscillating at room temperature. SOLUTION: The light-emitting device is provided with a chloride phosphor which includes chloride as a matrix and praseodymium ions (Pr 3+ ), neodymium ions (Nd 3+ ), samarium ions (Sm 3+ ), europium ions (Eu 3+ , Eu 2+ ), terbium ions (Tb 3+ ), dysprosium ions (Dy 3+ ), holmium ions (Ho 3+ ), erbium ions (Er 3+ ) or thulium ions (Tm 3+ ) as an activator; and a light source for emitting light having a wavelength of ≥600 nm and ≤2 μm to the chloride phosphor. The light emitting device emits light having a wavelength of ≥1.5 μm and ≤8 μm. COPYRIGHT: (C)2007,JPO&INPIT