Nippon Steel Chemical Co.

Kitakyūshū, Japan

Nippon Steel Chemical Co.

Kitakyūshū, Japan

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Patent
Kyushu Institute of Technology and Nippon Steel Chemical Co. | Date: 2013-12-23

Provided is a dye-sensitized solar cell, and a method for manufacturing the same, that in a technology in which a current collector electrode is used instead of a transparent conductive film, can be manufactured by a simple cell producing operation and is capable of achieving a desirably thin thickness for the current collector electrode. A dye-sensitized solar cell 10 includes a transparent substrate 12 provided on the side where solar light is incident, a conductive substrate 14 that serves as a cathode and is provided opposite the transparent substrate 12, a porous semiconductor layer 16, a porous conductive metal layer 18 that serves as a current collector electrode, and a porous insulating layer 20. The porous conductive metal layer 18 is a layer that has a thickness of 0.3 m to 100 m and is deposited on the porous insulating layer 20. The porous conductive metal layer 18 is arranged in contact with the porous semiconductor layer 16 on the side that is opposite to the transparent substrate 12, and serves as an anode. The porous insulating layer 20 is arranged on the side of the porous conductive metal layer 18 opposite to the porous semiconductor layer 16. The conductive substrate 14 is arranged facing the porous insulating layer 20.


Patent
Nippon Steel Chemical Co. | Date: 2013-02-06

Provided are a lubricating oil base oil having characteristics of low volatility and excellent low-temperature fluidity and capable of providing long-lasting lubrication property in a wide temperature range from low temperature to high temperature, and a lubricating oil compositionusing the same. The lubricating oil base oil includes a diester obtained through a reaction between a diol component formed of 1,12-dodecanediol and a carboxylic acid component formed of 2-methylpentanoic acid or 2-methylpentanoic acid and 2-ethylhexanoic acid. The diester is represented by R_(2)COOR_(1)OOCR_(3), where R_(1) represents an alkylene derived from the diol component and R_(2) and R_(3) each represent an alkyl derived from the carboxylic acid component, and includes 45 to 100 mol% of a diester in which both of R_(2) and R_(3) represent C5 alkyls.


Patent
Nippon Steel Chemical Co. | Date: 2013-01-02

Provided is a coating agent composition capable of forming a transparent coating which has weather resistance and resistance to abrasion, scratch, and the like and has a transparent and glossy finish. The coating agent composition is a coating agent composition, including: a polymerizable resin compound including as a main component a polyorganosilsesquioxane; and a curing catalyst for curing the polymerizable resin compound, in which the coating agent composition has a viscosity of 1 to 10,000 mPas. The coating agent composition is suitably a coating agent composition, in which the polymerizable resin compound includes a silicone resin including a polyorganosilsesquioxane having a cage-type structure.


Patent
Nippon Steel Chemical Co. | Date: 2013-02-27

The present invention provides a proton conducting polymer which provides proton conductivity without humidification and is suitable for electrochemical device materials such as solid electrolytes for fuel cells and electrolytes for batteries. The proton conducting compound is produced by polymerization of a salt of a melamine compound represented by the following equation (2) and a Bronsted acid:_(1), R_(2), R_(3), R_(4), and R_(5) each is independently an alkyl group, an aryl group, a heterocyclic group, or hydrogen and at least one of them is an alkyl group, an aryl group, or a heterocyclic group; R_(2) and R_(3) or R_(4) and R_(5) may join together to form a heterocyclic structure; and the alkyl group, the aryl group, and the heterocyclic group each may have a substituent selected from the group of alkyl groups of 1 to 6 carbon atoms, aryl groups of 6 to 12 carbon atoms, heterocyclic groups, an amino group, alkylamino groups of 1 to 6 carbon atoms, a nitro group, a carboxyl group, acryl groups of 1 to 6 carbon atoms, acyloxy groups of 1 two 6 carbon atoms, a cyano group, alkylsulfonyl groups of 1 to 6 carbon atoms, alkylsulfonyloxy groups of 1 to 6 carbon atoms, a sulfoxide group, a sulfonic acid group, alkoxycarbonyl groups of 1 to 6 carbon atoms, aryloxycarbonyl groups of 6 to 12 carbon atoms, aryloxy groups of 6 to 12 carbon atoms, and alkynyl groups of 2 to 6 carbon atoms; R_(6) is hydrogen or an alkyl group and n is an integer equal to or larger than 1,


Patent
Nippon Steel Chemical Co. | Date: 2013-01-23

A metal microparticle composite is provided, which includes a film-shaped matrix resin and metal microparticles immobilized in the matrix resin. The metal microparticles are obtained by reducing metal ions or metal salts, and the particle diameters of at least 90% of all the metal microparticles are in the range of 10 nm to 80 nm. The metal microparticles that are dispersed in a plane direction parallel to the matrix resin surface in a range of depth within 150 nm from the matrix resin surface to form a metal microparticle layer, and only one metal microparticle having the diameter described is present in the direction of depth in the metal microparticles layer. The spacing between adjacent metal microparticles is greater than and equal to the particle diameter of the larger one of the adjacent metal microparticles.


Patent
Nippon Steel Chemical Co. | Date: 2013-01-02

Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material. In formula (1), X is C-Y or a nitrogen atom; Y is a hydrogen atom, an alkyl group, a cycloalkyl group, or an aromatic group; n is an integer of 2 to 4: A is an n-valent aromatic group; L is a direct bond or a divalent aromatic group; and R is a hydrogen atom, an alkyl group, or a cycloalkyl group.


Provided are a polymer for an organic electroluminescent element, which improves light emission efficiency of the element and is applicable to a wet process, and an organic electroluminescent element, which is obtained using the polymer. The polymer for an organic electroluminescent element includes a repeating unit represented by the following general formula (1) in a repeating unit constituting a main chain. Further, the organic electroluminescent element includes organic layers between an anode and a cathode laminated on a substrate, in which at least one of the organic layers includes the polymer for an organic electroluminescent element, including an indolocarbazole skeleton in the repeating unit constituting a main chain. In the general formula (1), Z represents anN-indolocarbazolyl group, W represents a charge transporting group, m and n represent molar ratios, m represents 0 to 95 mol%, and n represents 5 to 100 mol%.


Patent
Nippon Steel Chemical Co. | Date: 2013-02-06

Provided are a lubricating oil base oil excellent in durability and low-torque property, and a lubricating oil composition suitable for a fluid dynamic pressure bearing, an oil-impregnated porous bearing, or a dynamic pressure-type oil-impregnated porous bearing to be used in a bearing for a small spindle motor related to information equipment. Specifically, provided are a lubricating oil base oil including, as a major component, a diester represented by the following formula (1), and a lubricating oil composition including the lubricating oil base oil. In the formula, R_(1) and R_(2) each independently represent a 1-ethylpentyl group, an n-heptyl group, or a n-hexyl group, and when the diester in which both of R_(1) and R_(2) each represent an n-heptyl group or an n-hexyl group is defined as A, the diester in which one of R_(1) and R_(2) represents a 1-ethylpentyl group is B, and the diester in which both of R_(1) and R_(2) each represent a 1-ethylpentyl group is defined as C, the molar ratio of the diesters falls within a range of A:B:C=25 to 65:30 to 50:3 to 25.


Patent
Nippon Steel Chemical Co. | Date: 2013-01-02

Provided is a curable resin composition which has excellent optical properties, heat resistance, transparency, low water absorbability, and mold release property in molding, and reduces the occurrence of a burr from a mold. Also provided are a cured product thereof and an optical material. The curable resin composition includes: a component (A): a soluble polyfunctional (meth)acrylic acid ester copolymer which is obtained by copolymerizing components including a monofunctional (meth) acrylic acid ester (a) having an alicyclic structure, a bifunctional (meth) acrylic acid ester (b), and 2,4-diphenyl-4-methyl-1-pentene (c), has a reactive (meth) acrylate group derived from (b) in a side chain and a structural unit derived from (c) at an end, has a Mw of 2,000 to 20, 000, and is soluble in an organic solvent; a component (B): a polyfunctional (meth)acrylate; and a component (C): an initiator, in which the blending amounts (weight ratio) of the respective components are as follows: (B)/(A)=5 to 250/100, and (C)/[(B)+(A)]=0.1 to 10/100.


Patent
Nippon Steel Chemical Co. | Date: 2013-01-09

A metal nanoparticle composite is provided, in which a matrix resin layer and metal nanoparticles are immobilized on the matrix resin layer. The metal nanoparticle composite has the following characteristics: a) the metal nanoparticles are obtained by heat-reducing metal ions or metal salts contained in the matrix resin layer or a precursor resin layer thereof; b) the metal nanoparticles exist within a region from the surface of the matrix resin layer to a depth of at least 50 nm; c) particle diameters of the metal nanoparticles are in the range of 1 nm to 100 nm with the mean particle diameter of greater than and equal to 3 nm; and d) a spacing between adjacent metal nanoparticles is greater than and equal to the particle diameter of a larger one of the adjacent metal nanoparticles.

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