DAINIPPON INK AND CHEMICALS, INC. Patent applications |
Patent application number | Title | Published |
20110275739 | EPOXY RESIN COMPOSITION, CURED ARTICLE THEREOF, SEMICONDUCTOR SEALING MATERIAL, NOVEL PHENOL RESIN, NOVEL EPOXY RESIN, METHOD FOR PRODUCING NOVEL PHENOL RESIN, AND METHOD FOR PRODUCING NOVEL EPOXY RESIN - An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X). | 11-10-2011 |
20100087590 | EPOXY RESIN COMPOSITION AND CURED ARTICLE THEREOF, SEMICONDUCTOR ENCAPSULATION MATERIAL, NOVEL PHENOL RESIN, AND NOVEL EPOXY RESIN - The object of the present invention is to provide an epoxy resin composition capable of realizing low dielectric constant and low dielectric dissipation factor, which is suited for use as a latest current high-frequency type electronic component-related material, without deteriorating heat resistance during the curing reaction. A phenol resin, which has the respective structural units of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P) derived from phenols, an alkoxy group-containing condensed polycyclic aromatic hydrocarbon group (B) derived from methoxynaphthalene and a divalent hydrocarbon group (X) such as methylene and also has a structure represented by -P-B-X- wherein P, B and X are structural sites of these groups in a molecular structure, is used as a curing agent for the epoxy resin, or a phenol resin as an epoxy resin material. | 04-08-2010 |
20100056747 | EPOXY RESIN COMPOSITION AND CURED ARTICLE THEREOF, NOVEL EPOXY RESIN AND PRODUCTION METHOD THEREOF, AND NOVEL PHENOL RESIN - The present invention relates to a composition containing as a main component, an epoxy resin which has a structure comprising a polyaryleneoxy structure such as polynaphthylene oxide as a main skeleton, (methyl)glycidyloxy group and aralkyl group being introduced on an aromatic ring of the polyaryleneoxy structure, and which has low viscosity, according to the present invention, there can be provided an epoxy resin composition which can impart remarkably excellent flame retardancy and dielectric characteristics to a cured article and a cured article thereof, an epoxy resin, a phenol resin as an intermediate of the epoxy resin, and a method for producing the epoxy resin. | 03-04-2010 |
20100018765 | ELECTROMAGNETIC WAVE SHIELDING MATERIAL AND PRODUCTION PROCESS OF THE SAME - The production process of an electromagnetic wave shielding material of the present invention comprises screen printing a conductive paste containing conductive particles, binder and solvent in a geometrical pattern on the surface of a transparent porous layer of a transparent resin substrate provided with the transparent porous layer, the porous layer containing as a main component thereof at least one type selected from the group consisting of an oxide ceramic, a non-oxide ceramic and a metal, followed by forming a conductive portion in a geometrical pattern on the surface of the transparent porous layer by heat treatment. An electromagnetic wave shielding material produced according to this production process has high electromagnetic wave shielding effects and superior transparency and visibility. | 01-28-2010 |
20100015497 | SEPARATOR FOR FUEL CELL, METHOD FOR PRODUCING THE SAME, AND FUEL CELL - The present invention provides a separator for a fuel cell comprising a resin and a conductive material as constituting components, and sulfonic acid groups imparted to at least one portion at the surface of gas channels by a treatment using a sulfuric acid-containing gas, wherein the resin and the sulfonic acid groups, which are on the surface of the gas channels, are bonded, and a ratio of sulfur atoms in the sulfonic acid groups at the surface of the gas channels as determined by energy-dispersive X-ray spectroscopy is in a range from 0.1 to 4.0 at %, and a method for producing the separator. The separator for a fuel cell of the present invention is excellent in the wettability to water, since sulfonic acid groups are imparted to the resin at the surface of gas channels in the sulfuric acid-containing gas. | 01-21-2010 |
20090246484 | INK FOR JET PRINTER - An ink for a jet printer that includes a pigment, a film-forming resin, and an organic solvent, wherein the film-forming resin includes, as the main component, an oil-modified alkyd resin or fatty acid-modified alkyd resin with an oil length of 20 to 70%, that has been modified with a modifier containing one or more oils or fatty acids selected from the group consisting of castor oil, castor oil fatty acids, hydrogenated castor oil, hydrogenated castor oil fatty acids, ricinoleic acid, and 12-hydroxystearic acid, as well as an exterior wall siding material with a picture formed by the ink and a method of producing such a material. | 10-01-2009 |
20090221733 | AQUEOUS PIGMENT DISPERSION LIQUID AND INK-JET RECORDING INK - A production method of an aqueous pigment dispersion liquid of the present invention includes: a kneading step of kneading a mixture including (a) C. I. pigment violet 23, (b) a styrene-acrylic acid-based copolymer with an acid value of 50 to 300 mgKOH/g, (c) an alkali metal hydroxide, (d) water, and (e) a wetting agent, thereby producing a colored, kneaded material; and a dispersion step of dispersing the pigmented, kneaded material in an aqueous medium by using a dispersing machine with media, wherein the mass ratio of (b)/(a) in the kneading step is within a range of 0.15 to 0.45, the mass ratio of (d)/(a) in the first half of the kneading step is within a range of 0.04 to 0.42, and the change in viscosity of materials to be dispersed in the dispersion step is 10% or lower. | 09-03-2009 |
20090220755 | Ink and laminated sheet - An ink comprises metal thin film fragments having an average thickness of 0.01 to 0.1 μm and an average particle diameter of 5 to 25 μm, and a binder resin having at least one selected from the group consisting of a carboxyl group, a phosphoric acid group, a sulfonic acid group, metal salts thereof and an amino group. A laminated sheet comprises multilaminated at least two synthetic resin films for molding, and a decorative layer having mirror-like metallic luster formed at any laminate interface of the synthetic resin films, the decorative layer being an ink film made of the ink, the ink film having a thickness of 0.05 to 2.0 μm. | 09-03-2009 |
20090200514 | DIFLUOROBENZENE DERIVATIVE AND NEMATIC LIQUID CRYSTAL COMPOSITION USING THE SAME - A nematic liquid crystal composition of the present invention includes one or at least two compounds represented by general formula (I) as a first component; and one or at least two compounds represented by general formula (II) as a second component, wherein a dielectric anisotropy is negative. | 08-13-2009 |
20090176905 | Ultraviolet-Curable Resin Composition, Ultraviolet-Curable Coating and Coated Article - The present invention is to provides an ultraviolet-curable resin composition which contains a composite resin (A) having a polysiloxane segment (a1) having a silanol group and/or a hydrolytic silyl group as well as a polymerizable double bond and a polymer segment (a2) other than the polysiloxane segment (a1), and a photo initiator (B). The ultraviolet-curable resin composition is able to form a cured coating film excellent in weatherability such as scratch resistance, acid resistance, alkali resistance and solvent resistance, without heating. | 07-09-2009 |
20090168141 | ION CONDUCTOR AND ELECTROCHEMICAL DISPLAY DEVICE UTILIZING THE SAME - An ion conductor has fine particles of an organic polymer including 20 to 80% by mass of ultra-fine particles of an inorganic compound, and an electrolytic solution impregnated into the fine particles of the organic polymer, wherein the fine particles of the organic polymer have a specific surface area measured by the BET method of 30 m | 07-02-2009 |
20090148648 | ULTRAVIOLET-CURABLE RESIN COMPOSITION AND OPTICAL INFORMATION RECORDING MEDIUM - The present invention provides an ultraviolet-curable resin composition, comprising a silicone compound represented by the following formula (1): [Chemical Formula 1] | 06-11-2009 |
20090146117 | METHOD FOR PRODUCING SURFACE-TREATED SILVER-CONTAINING POWDER AND SILVER PASTE USING SURFACE-TREATED SILVER-CONTAINING POWDER - A method for producing a surface-treated silver-containing powder comprises vacuum freeze drying a dispersion liquid, which is obtained by dispersing silver or silver compound particles (a) in a solvent together with a surfactant (b) of an alkylamine type or an alkylamine salt type, or a phosphate type having a phosphorus content of 0.5 to 10% by mass so that the surfactant (b) is adsorbed in the surface of the silver or silver compound particles (a), thereby producing a silver-containing powder (c) whose surface is treated with the surfactant (b). Moreover, a silver paste is produced by dispersing the surface-treated silver-containing powder (c) in a solvent, or in a solvent with a resin. | 06-11-2009 |
20090131622 | Method For Producing Branched-Polyether Resin Composition And Method For Producing Acid Pendant Branched-Polyether Resin Composition - A method for producing a branched-polyether resin composition of the present invention includes
| 05-21-2009 |
20090131550 | PHOTOCURABLE COMPOSITION FOR SEALANT, LIQUID CRYSTAL SEALANT, AND LIQUID CRYSTAL PANEL - The photocurable composition for a sealant of the present invention includes a compound represented by general formula (1): | 05-21-2009 |
20090130405 | INK COMPOSITION FOR JET PRINTER - Disclosed is an ink composition for jet printer, comprising a pigment, a film forming resin and an organic solvent, the film forming resin being an acrylic copolymer containing, as a monomer unit, at least one of compounds represented by the general formulas (1) and (2): | 05-21-2009 |
20090121186 | TRIFLUORONAPHTHALENE DERIVATIVE AND LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME - The present invention was realized in order to provide a liquid crystal composition which is negative in dielectric constant anisotropy and having a large absolute value and a display element, and also to provide a compound which is negative in dielectric constant anisotropy and having a large absolute value. | 05-14-2009 |
20090118405 | POLYPHENYLENE SULFIDE RESIN COATED ARTICLE - A polyphenylene sulfide resin coated article comprising: a molded article (A) of a polyphenylene sulfide resin material (a) which comprises a polyphenylene sulfide resin (a1), and a coated film layer (B) which is formed by applying a croating which comprises as a solid component a chlorinated polyolefin resin (b1) having a chlorine atom Content of 20 to 45% by mass on the surface of the molded article (A). | 05-07-2009 |
20090104441 | LAMINATED SHEET FOR THERMOFORMING, FORMED PRODUCT, INJECTION-MOLDED PRODUCT, AND METHOD OF PRODUCING THE SAME - The object of the present invention is to provide a laminated sheet for thermoforming, including a thermoplastic resin film layer; a decoration layer; and a support base resin layer, wherein the thermoplastic resin film layer, the decoration layer, and the support base resin layer are sequentially laminated, and the support base resin layer contains one or more linear low density polyethylene layers. Also, the object of the resent invention is to provide a formed product obtained by thermoforming the laminated sheet, and a method of producing the same. Furthermore, the object of the present invention is to provide an injection-molded product obtained by loading an injection resin onto the backside of the molded product, and a method of producing the same. | 04-23-2009 |
20090069490 | EPOXY RESIN COMPOSITION AND CURED ARTICLE THEREOF, NOVEL EPOXY RESIN AND PRODUCTION METHOD THEREOF, AND NOVEL PHENOL RESIN - The present invention relates to a composition containing as a main component, an epoxy resin which has a structure comprising a polyaryleneoxy structure such as polynaphthylene oxide as a main skeleton, (methyl)glycidyloxy group and aralkyl group being introduced on an aromatic ring of the polyaryleneoxy structure, and which has low viscosity, according to the present invention, there can be provided an epoxy resin composition which can impart remarkably excellent flame retardancy and dielectric characteristics to a cured article and a cured article thereof, an epoxy resin, a phenol resin as an intermediate of the epoxy resin, and a method for producing the epoxy resin. | 03-12-2009 |
20090054585 | EPOXY RESIN COMPOSITION AND CURED ARTICLE THEREOF, SEMICONDUCTOR ENCAPSULATION MATERIAL, NOVEL PHENOL RESIN, AND NOVEL EPOXY RESIN - The object of the present invention is to provide an epoxy resin composition capable of realizing low dielectric constant and low dielectric dissipation factor, which is suited for use as a latest current high-frequency type electronic component-related material, without deteriorating heat resistance during the curing reaction. A phenol resin, which has the respective structural units of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P) derived from phenols, an alkoxy group-containing condensed polycyclic aromatic hydrocarbon group (B) derived from methoxynaphthalene and a divalent hydrocarbon group (X) such as methylene and also has a structure represented by —P—B—X— wherein P, B and X are structural sites of these groups in a molecular structure, is used as a curing agent for the epoxy resin, or a phenol resin as an epoxy resin material. | 02-26-2009 |
20090050843 | DIFLUOROBENZENE DERIVATIVE AND NEMATIC LIQUID CRYSTAL COMPOSITION USING THE SAME - A nematic liquid crystal composition of the present invention includes 10 to 80% by mass of either one or at least two compounds represented by general formula (I) as a first component; and 20 to 70% by mass of either one or at least two compounds represented by general formula (II) as a second component, wherein a dielectric constant anisotropy is negative. | 02-26-2009 |
20090039556 | THERMOFORMING METHOD FOR THERMOFORMING SHEET AND THERMOFORMING APPARATUS - The thermoforming method of the present invention is a method that includes thermoplasticizing a portion, including a part | 02-12-2009 |
20090018328 | PHTHALOCYANINE COMPOUND AND METHOD FOR PRODUCING THE SAME, AND COLORING COMPOSITION CONTAINING THE PHTHALOCYANINE COMPOUND - To provide a phthalocyanine compound represented by the following general formula (1), which is halogen-free and has green hue, and also has resistance to an organic solvent and an acid: | 01-15-2009 |
20090018245 | AQUEOUS PIGMENT DISPERSION AND INK COMPOSITION FOR INKJET RECORDING - The present invention is to provide an orange ink composition for inkjet recording high in color saturation and gloss, while having long storage stability and jet stability, and also to provide an aqueous pigment dispersion mainly composing the ink composition. The aqueous pigment dispersion which contains a styrene-acrylic acid copolymer containing 60% by mass or more of styrene-based monomer units with respect to total monomer components and having an acid value of 130 to 200 and a weight-average molecular weight of 6,000 to 40,000, an alkali metal hydroxide, a wetting agent and C. I. Pigment Red 168 is excellent in storage stability and high in gloss. Further, an ink composition for inkjet recording mainly composing the aqueous pigment dispersion reflects an excellent dispersibility of the aqueous pigment dispersion, thereby having a favorable jettability and excellent light fastness. | 01-15-2009 |
20080305365 | Magnetic Recording Medium and Manufacturing Method Therefor - A card-like magnetic recording medium comprising a non-magnetic substrate and a laminate containing a magnetic recording layer wherein the laminate is placed in at least a portion of the non-magnetic substrate; wherein the laminate comprises a light reflection quantity controlling layer, which includes a binder resin and at least one of a scale-like metal powder and fine flakes obtained from a metallic thin film and is formed on the magnetic recording layer, and further comprises a glistening coating layer which includes glistening particles and is formed on the light reflection quantity controlling layer; and the maximum reflectance of diffuse reflection light with respect to incident lights having a wavelength from 400 to 700 nm is 20 to 70% on a portion where the glistening coating layer is provided. | 12-11-2008 |
20080269345 | Quarternary Ammonium Compound, Process for Producing the Same, Therapeutic Agent for Cerebrovascular Disorder, and Therapeutic Agent for Heart Disease - A quaternary ammonium compound of the present invention is a quaternary ammonium compound represented by general formula (I) or (I′) | 10-30-2008 |
20080255315 | Epoxy Resin Composition,Cured Article Thereof, Semiconductor Sealing Material, Novel Phenol Resin, Novel Epoxy Resin,Method for Producing Novel Phenol Resin, And Method For Producing Novel Epoxy Resin - An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X). | 10-16-2008 |
20080253255 | Magnetic Recording Medium and Production Method Thereof - The magnetic recording medium of the present invention has a pattern formed using a pattern-forming agent in a laminate of multiple layers including a base material and a magnetic recoding layer, wherein the pattern is recognized on the surface of the laminate opposite to the base material, and the pattern-forming agent is distributed through the thickness of the laminate, wherein a region between the center of the magnetic recording layer and a magnetic recording-reading side of the laminate has an area having a density gradient of the pattern-forming agent which gradually declines in the direction from the center of the magnetic recording layer to the magnetic recording-reading side. | 10-16-2008 |