Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing, economically in a high yield, 3,4-dihydroxy-3-methylbutyronitrile, especially its optically active substance, which is useful as an intermediate of medicines, agrochemicals, etc. SOLUTION: The production method is characterized by that a racemic or optically active 3-halogeno-2-methyl-1,2-propanediol is reacted with a so-called prussiate, such as a prussiate of an alkali metal or a prussiate of an alkaline earth metal, if necessary in the presence of a solvent, such as N,N-dimethylformamide, dimethylsulfoxide, methanol, or water. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system for producing sodium chloride in which high-purity sodium chloride is purified by a simple treatment method. SOLUTION: The system for producing sodium chloride, in which sodium bicarbonate is added to exhaust gas, the obtained product is dissolved in water and a product-dissolved solution is purified to produce sodium chloride, is provided with: a decarbonation tank 4 for decomposing/removing a carbonate radical in the product-dissolved solution; a precipitating/removing means for precipitating/removing a sulfate radical, heavy metals and fluorine compounds from the product-dissolved solution from which the carbonate radical is removed in the decarbonation tank 4; a crystallization tank 10 for heating/concentrating a supernatant liquid, which is obtained by precipitating/removing the sulfate radical, heavy metals and fluorine compounds by the precipitating/removing means, to crystallize sodium chloride; and a liquid sending means 14 for returning/circulating a mother liquid, which is obtained by separating the sodium chloride crystallized in the crystallization tank 10, again into this system. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a low hardness vulcanized rubber molded article which can be used as a roller, a belt, or the like for the charging, development, transfer or the like of an electrographic process used in a copying machine, a printer, or the like, has a good volume resistivity in a semi-conductive region and good migration resistance. SOLUTION: This rubber composition comprises an epichlorohydrin-based polymer rubber in an amount of ≥20 wt.% per 100 wt.% of a rubber component, and an oxidized mineral oil and a vulcanizing agent in amounts of 0.1 to 20 pts.wt. and 0.1 to 10 pts.wt., respectively, per 100 pts.wt. of the rubber component. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a composition for a volume hologram recording material excellent in refractive index modulation, wavelength selectivity and durability; and also to provide a method for producing a hologram recording medium and a volume hologram. SOLUTION: The photopolymer composition for a volume phase type hologram recording material contains a binder polymer (A) of formula (I) having a glass transition temperature of 40-200°C and a number average molecular weight of 10,000-1,000,000, a radically polymerizable substance (B) and a radical polymerization initiator (C), wherein R k and R l are each H or a saturated or unsaturated aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon or heteroaromatic hydrocarbon. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a novel spiro structural compound useful in the asymmetric catalyst reaction and its manufacturing method. SOLUTION: The spiro isooxazoline-isooxazole derivative and its optically active isomer have a spiro ring skeleton represented by formula (1) (wherein m and n are each an integer of 0-3, and R 1 , R 2 , and R 3 are the same or different and selected from hydrogen, a 1-4C alkyl group, a 2-4C alkenyl group, a substituted or nonsubstituted aralkyl group, and a substituted or nonsubstituted aryl group), and their manufacturing methods are disclosed. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a polymer gel electrolyte and a method of manufacturing the same. SOLUTION: This polymer gel electrolyte comprises: a porous membrane base material; a polymer in which a principal chain has polyacrylate, polymethacrylate, polyethylene oxide, polypropylene oxide, poly (ethylene oxide/propyrene oxide), polyphosphazene, polyvinylether or a polysiloxane structure, and a side chain has an oligoalkylene oxide structure, and which is supported on the porous membrane base material and swollen with an organic solvent; and an electrolytic salt. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photopolymer composition for a wavelength selection filter, the composition that can achieve improvement in yield and production efficiency. SOLUTION: The photopolymer composition for a wavelength selection filter is to be used for recording the intensity distribution of interference fringes as changes in the refractive index, which is obtained by interfering light having excellent coherence, wherein the composition comprises: (A) a specified radical polymerizable compound having a 9,9-diarylfluorene skeleton; (B) a cationic polymerizable compound; (C) a binder polymer; (D) a specified photo-radical polymerization initiator; (E) a photo-sensitization dye to sensitize the photo-radical polymerization initiator; and (F) a specified photo-cation polymerization initiator. The refractive index of the (A) radical polymerizable compound is higher than the weighted average of the refractive indices of the (B) cationic polymerizable compound and the (C) binder polymer. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a new method for oxidizing a primary or secondary alcohol. SOLUTION: The new method for oxidizing the primary or secondary alcohol to produce the corresponding aldehyde or ketone is provided, involving using a nitroxy radical compound of the formula(1)(wherein, R 0 to R 4 are each a straight-chain or branched 1-10C alkyl, wherein two R 0 groups may be bound to each other to form a 5 to 7-membered heterocyclic ring together with the intramolecular nitrogen atom) and a co-oxidizing agent. In this process, the co-oxidizing agent to be used is an organic N-bromoamide compound or a combination of N-chlorosuccinimide with a bromide ion. COPYRIGHT: (C)2006,JPO&NCIPI