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Provided are a thermoplastic epoxy resin composition comprising (A) an epoxy compound having two epoxy groups in one molecule, (B) a compound having two phenolic hydroxyl groups in one molecule, and at least one compound selected from the group consisting of dihexylamine, diheptylamine, di(2-ethylhexyl)amine, N-ethylhexylamine, trihexylamine, dioctylamine, tri n-octylamine, N,N-dimethyl-n-octylamine, and N,N-dimethyldecylamine as (C) a curing accelerator, and a thermoplastic cured epoxy resin with transparency to visible light produced by curing the thermoplastic epoxy resin composition.


Patent
Nagase ChemteX Corporation | Date: 2015-02-06

Provided is an ink composition having excellent printing properties and capable of forming a thick transparent conductive film with low surface resistivity even when it is used in gravure offset printing or pad printing. The ink composition contains (A) a conductive polymer, (B) a binder, and (C) a conductivity enhancer, wherein the composition has a viscosity at 25 C. of 5 to 500 dPas and a solids content of 10% to 80% by weight, and the composition exhibits a surface resistivity of 2000 /sq or lower and a total light transmittance of 70% or higher when applied at a wet film thickness of 15 m.


Patent
Nagase Chemtex Corporation | Date: 2014-03-04

Provided is a method for manufacturing nylon 6, said method being capable of producing a higher degree of crystallinity in a polymer at the end of a polymerization step performed on an anionically polymerizable caprolactam melt. The present invention is a method in which molten caprolactam in a reactor is anionically polymerized in the presence of a carbodiimide compound and both an anionic polymerization catalyst and an activator, neither of which is a carbodiimide compound, and a polymer is obtained from the reactor following the end of the polymerization step, yielding nylon 6 with a degree of crystallinity of at least 42% without raising the temperature of the interior of the reactor from the temperature thereof at the end of the polymerization step.


Patent
Nagase Chemtex Corporation | Date: 2014-03-19

The present invention aims to maximize the advantageous physical properties of sulfur and provide a cathode mixture that can be suitably used in a cathode mixture layer of an all-solid-state lithium sulfur battery exhibiting excellent charge/discharge capacity. The present invention also aims to provide an all-solid-state lithium sulfur battery including a cathode mixture layer containing the cathode mixture. The present invention provides a cathode mixture for use in a cathode mixture layer of an all-solid-state lithium sulfur battery, the cathode mixture containing: (A) an ion-conductive material containing phosphorus at a weight ratio of 0.2 to 0.55; (B) sulfur and/or its discharge product (B); and (C) a conductive material, the amount of the component (B) being 40% by weight or more of the total amount of the components (A), (B), and (C).


Patent
Nagase Chemtex Corporation | Date: 2013-04-11

An electrically conductive polymer obtained by oxidative polymerization of a heterocycle-containing aromatic compound as a monomer, wherein the heterocycle-containing aromatic compound is represented by the formula: A-B. In the above formula, A represents a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; B represents a substituted or unsubstituted hydrocarbon aromatic ring group, a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; the ring represented by A and the ring represented by B are directly linked; however, A and B represent structures that are different from each other. The compound can be produced by a coupling reaction using a hypervalent iodine reactant.

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