| DAISO CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20120091007 | ANODE FOR OXYGEN GENERATION - In an insoluble anode for use in an electrolysis step accompanied by oxygen generation, by making the anode exert sufficient durability even in electrolysis accompanied by cathodic polarization besides anodic polarization, a service life of an electrode is prolonged and works of electrode repair, replacement, and the like are reduced. In order to realize this, an active material supporting member made of a porous metal sheet such as an expanded metal, a punching metal, or a bamboo blind-like or net-shaped metal is bonded to a conductive metal as an electrode structure, to configure an electrode substrate. The electrode substrate is coated, on the side to which the supporting member is bonded, with an electrode active material consisting mainly of iridium oxide. Thus, the anode for oxygen generation, which is highly resistant to a cathodization phenomenon, is obtained. | 04-19-2012 |
| 20120016120 | PROCESS FOR PRODUCING 2-HYDROXYMETHYLMORPHOLINE SALT - The invention relates to a production method of a 2-hydroxymethylmorpholine salt, which includes crystallization from a solution containing 2-hydroxymethylmorpholine of formula (1) | 01-19-2012 |
| 20110288315 | PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE COMPOUND - A 2-aryl-2-halomethyl-4-chloromethyl-1,3-dioxolane (A) can be produced conveniently without decreasing its optical purity by reacting an optically active monochlorohydrin and an aryl (halomethyl) ketone (starting materials) with each other in the presence of an acid catalyst. From the optically active compound (A) thus produced, an optically active carboxylic acid (2-aryl-2-halomethyl-1,3-dioxolan-4-yl)methyl ester and an optically active sulfonic acid (2-aryl-2-halomethyl-1,3-dioxolan-4-yl)methyl ester (both of which are useful intermediates for the production of ketoconazole) can be produced with good efficiency. An optically active trans-carboxylic acid (2-aryl-2-halomethyl-1,3-dioxolan-4-yl)methyl ester can be isomerized into its cis-form in the presence of an acid catalyst. | 11-24-2011 |
| 20110210296 | SEMI-CONDUCTIVE RUBBER COMPOSITION AND VULCANIZATE THEREOF - The present invention provides a rubber composition, which realizes low hardness and low compression set while maintaining semi-conductivity, and a vulcanizate thereof. Also the rubber composition can be obtained by blending an epichlorohydrin-based rubber having satisfactory semi-conductivity and an acrylonitrile-butadiene-based rubber as a reactive plasticizer, and also blending zinc oxide, a thiuram-based compound and a quinoxaline-based compound. | 09-01-2011 |
| 20110160342 | VULCANIZABLE RUBBER COMPOSITION FOR USE IN AN AIR SPRING AND RUBBER FORMED PRODUCT FOR USE IN AN AIR SPRING - Disclosed is a vulcanizable rubber composition for use in an air spring, which has excellent low-temperature behavior, and a vulcanized rubber formed product for air springs, which is obtained by vulcanization of the rubber composition. Also disclosed is a vulcanizable rubber composition for use in an air spring, comprising: an epihalohydrin-based copolymer comprising 50 to 70 mol % of a constituent unit derived from ethylene oxide and/or propylene oxide, 20 to 50 mol % of a constituent unit derived from epihalohydrin, and 0 to 15 mol % of a constituent unit derived from allyl glycidyl ether; a vulcanizing agent; a plasticizer; and an acid acceptor, and a rubber formed product for air springs, which is obtained by vulcanization of the composition. | 06-30-2011 |
| 20100297452 | VULCANIZED RUBBER LAMINATE - Disclosed is a vulcanized rubber laminate in which both an unvulcanized epichlorohydrin-based rubber composition layer containing a specific polyfunctional (meth)acrylate compound and a specific vulcanizing agent and an unvulcanized fluororubber composition layer containing a specific vulcanizing agent are heated and bonded, whereby, both rubber layers are firmly bonded. A vulcanized rubber laminate in which (A) an unvulcanized epichlorohydrin-based rubber composition layer and (B) an unvulcanized fluororubber composition layer are heated and bonded, wherein the unvulcanized epichlorohydrin-based rubber composition (A) contains: (1) a polyfunctional (meth)acrylate compound having two or more (meth) acryloyl groups in the molecule, and (2) at least one kind selected from the group consisting of a triazine-based vulcanizing agent, a thiourea-based vulcanizing agent, a quinoxaline-based vulcanizing agent and a bisphenol-based vulcanizing agent, and the unvulcanized fluororubber composition (B) contains an organic peroxide-based vulcanizing agent. | 11-25-2010 |
| 20100276280 | HOLLOW ELECTRODE WITH FILM FOR ELECTRODEPOSITION COATING - In order to solve various problems such as a reduction in a paint resin with the progress of electrodeposition coating treatment and remelting of a coating film or the occurrence of pinholes caused by an increased concentration of an electrolyte as a result of the reduction, upsizing of a hollow electrode with a membrane for electrodeposition coating combined with a barrier membrane (e.g., an ion exchange membrane) and an increase in the number of components should be avoided. In order to realize this, a barrier membrane | 11-04-2010 |
| 20100025254 | INSOLUBLE ANODE FOR METAL WIRE ELECTROPLATING AND METHOD OF ELECTROPLATING METAL WIRE USING THE SAME - To provide an insoluble anode for metal wire electroplating capable of simultaneously electroplating a plurality of metal wires and uniformalizing the electroplating amounts of the metal wires stably for a long time. For realizing these, a plurality of insoluble electrode plates | 02-04-2010 |
| 20090272646 | Insoluble Electrode - Provided is an economical long-life insoluble anode capable of maintaining an anode function stably for a long time even if it is used in a part where severe consumption occurs to generate a cathodizing phenomenon, and also capable of reducing the amount of an electrocatalyst used as much as possible. To realize this, on the surface of a metal substrate | 11-05-2009 |
| 20080271847 | Gas diffusion electrode assembly, bonding method for gas diffusion electrodes, and electrolyzer comprising gas diffusion electrodes - In a gas diffusion electrode assembly, and in an electrolyzer using the same, a bonding piece having on at least one surface a perfluorosulfonic acid layer, a perfluorosulfonyl fluoride layer or an alkyl ester of perfluorocarboxylic acid layer is positioned at its perfluoro compound layer surface with respect to the gas diffusion electrode assembly. Adjacent gas diffusion electrodes are heat fusion bonded together, or heat fusion bonding is carried out using the bonding piece in a frame form. Adjacent gas diffusion electrodes are sealed up by heat fusion bonding, using a material that is similar to the material that forms the gas diffusion electrodes. | 11-06-2008 |
| 20080249326 | High-Endurance Packing Material for Liquid Chromatography - The present invention provides a highly durable packing material for liquid chromatography that is excellent in acidic resistance and alkalic resistance. Such a packing material for liquid chromatography can be obtained by chemically modifying silica gel with a bifunctional silane compound represented by the general formula [I], and carrying out an endcapping reaction of the resulting chemically modified silica gel using bifunctional cyclic silazane represented by the general formula [II]. In the formula [I], X | 10-09-2008 |
