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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
Matsutani Chemical Industry Co., Nagase & Co and Nagase Chemtex Corporation | Date: 2013-10-30

Provided herein is an enzyme protein produced by a highly safe microorganism and having the activity to isomerize D-psicose to D-allose. The protein is any of the following proteins (a) to (c) with the activity to isomerize D-psicose to D-allose. (a) A protein comprising the amino acid sequence represented by SEQ ID NO: 1 originating in strain 710 of a microorganism of genus


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
Menicon Co., Nagase & Co and Nagase Chemtex Corporation | Date: 2013-07-12

An object of the present invention is to provide a process capable of producing a self-assembling peptide derivative that is useful in the fields of regenerative medicine and surgery in large quantities and in an economical and efficient manner. In particular, provided is a production process employing a combination of (i) a step of convergently constructing a sequence with use of a common repeating unit consisting of a specific amino acid sequence and (ii) a step of first isolating the peptide derivative as a disulfuric acid salt, a tetramethanesulfonic acid salt or a tetra(trifluoroacetic acid (TFA) salt), and then subjecting the peptide salt to a salt exchange reaction to yield a tetrahydrochloric acid salt.


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.

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