Nissan Chemical Industries Limited

Nissan Chemical Corporation

National Institute of Advanced Industrial Science and Technology

Nobuyuki Kakiuchi

Motohiko Hidaka

Takashi Oda

Hiroki Yamaguchi

Hitoshi Furusho

Naoki Otani

Yuki Endo

Mikio Kasai

Kazuki Hirasada

Tatsuo Okauchi

Naoki Nakaie

Keigo Matsumoto

Takeaki Shoji

Takaomi Fushimi

Tohru Minami

Hajime Kawanami

Yutaro Tsuda

Takayuki Ishizaka

Hitomi Fujiyama

Norihito Shiga

Tomohisa Utsunomiya

Mituyosi Ohata

Hirasada Kazuki

There is provided an epoxy composition which has difficulty in precipitating a crystal during storage, is homogeneous and can be stored for a long period; and a cured product of the composition having excellent transparency, heat resistance, and light resistance can be obtained on curing. An α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including β-type tris-(2,3-epoxypropyl)-isocyanurate in the crystal in a ratio of 2% by mass to 15% by mass. A method for producing the α-type tris-(2,3-epoxypropyl)-isocyanurate crystal including step (i) separating β-type tris-(2,3-epoxypropyl)-isocyanurate contained in a tris-(2,3-epoxypropyl)-isocyanurate solution from the solution as a solid to obtain a crystal with an increased content ratio of α-type tris-(2,3-epoxypropyl)-isocyanurate.

Highly soluble tris-(2, 3-epoxypropyl)-isocyanurate and method for producing same

Highly soluble tris-(2,3-epoxypropyl)-isocyanurate and method for producing same

A novel production method enables selective production of an isocyanuric acid N-substituted product of interest in one pot, requiring neither multiple steps nor cumbersome treatment, the method producing an N-(hydrocarbon)isocyanuric acid which includes a step N for reacting, in a solvent, a dihalogenated isocyanuric acid derivative with at least one hydrocarbonization agent selected from the group consisting of a halogenated hydrocarbon compound, a pseudo-halogenated hydrocarbon compound, and a dialkyl sulfate compound.

Method for producing N-(hydrocarbon)isocyanuric acid

An epoxy resin composition in a liquid or solid state having excellent solubility and having high preservation stability. A modified epoxy resin composition including: Compound A containing tris-(2,3-epoxypropyl)-isocyanurate having 1 to 3 glycidyl group(s) in a molecule substituted with a functional group(s) of Formula (1): in which Rand Rare each independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group; or a halogenated derivative, an aminated derivative, or a nitrated derivative of these groups; and Compound B containing tris-(2,3-epoxypropyl)-isocyanurate, wherein tris-(2,3-epoxypropyl)-isocyanurate of Compound A before the substitution and tris-(2,3-epoxypropyl)-isocyanurate of Compound B comprise 2% by mass to 15% by mass of &#x3b2;-type tris-(2,3-epoxypropyl)-isocyanurate and a remaining percentage of &#x3b1;-type tris-(2,3-epoxypropyl)-isocyanurate based on a total mass of Compound A before the substitution and Compound B.

Highly soluble modified epoxy resin composition

A method for preparing a branched alcohol by dimerizing an aliphatic monoalcohol having three or more carbon atoms in the presence of a base and a catalyst. The dimerization reaction is performed under atmospheric pressure while injecting a hydrogen gas. With this method, it is possible to obtain a dimerized alcohol with excellent yield even when using a branched aliphatic monoalcohol as the starting material.

Method for preparing branched alcohol

A method for producing a multibranched aliphatic ester including reacting a multibranched aliphatic alcohol with a multibranched aliphatic carboxylic acid in the absence of a solvent without a catalyst to obtain a multibranched aliphatic ester, and distilling the multibranched aliphatic ester to obtain a purified multibranched aliphatic ester, wherein at least one of the alcohol and the carboxylic acid is a Ccompound, and the obtained ester has a Hazen color number (APHA) of 1 to 30. Each of the multibranched aliphatic alcohol and the multibranched carboxylic acid has a tertiary carbon atom and/or a quaternary carbon atom in the molecule and in which the total number of the tertiary carbon atom and/or the quaternary carbon atom in the molecule is 2 or more. The method wherein the reaction is caused at 180 to 300&#xb0; C. The method wherein a monohydric alcohol and a monovalent carboxylic acid are used.

Method for producing multibranched aliphatic ester

There is provided a method for producing an epoxy compound having an epoxy ring bonded to a triazinetrione ring via a long chain alkylene group, an olefin compound having a specific structure is used to efficiently obtain an epoxy compound of which an olefin moiety is epoxidized in high yield. A method for producing an epoxy compound of Formula (2): including reacting a triolefin compound of the following Formula (1): (In the above-mentioned Formulae, Rto Rare each independently a hydrogen atom or a methyl group; and n1 to n3 are each independently an integer of 1 to 4) with hydrogen peroxide, a nitrile compound, and an alkaline substance in a solvent. The nitrile compound is an aliphatic nitrile compound or an aromatic nitrile compound. The alkaline substance is phosphate, carbonate, or an alkaline metal hydroxide.

Method for producing epoxy compound

There is provided a practical method for preparing lipopeptide compounds, which method is capable of inexpensive mass production without requiring complicated operations. The lipopeptide compound of formula (3): is produced by reacting an ester compound of formula (1): with an &#x3b1;-amino acid compound of formula (2): in the presence of a base and within a solvent containing a nonpolar organic solvent.

Method for preparing lipopeptide compound

A thiophene compound having a phosphate group, for example, one represented by the formula [1]. The compound has high resistance to heat and oxidation and can be improved in solubility or dispersibility in various solvents. (In the formula, Rand Reach independently represents, e.g., hydrogen, halogeno, cyano, or phenyl optionally substituted by W; and Rto Reach independently represents &#x2014;OR, SR, or &#x2014;NR, provided that Rto Reach independently represents hydrogen, Calkyl, or phenyl optionally substituted by W and W represents halogeno, cyano, nitro, hydroxyl, mercapto, amino, formyl, carboxy, Calkyl, etc.)

Thiophene compound having phosphoric ester and process for producing the same

A thiophene compound having sulfonyl groups which is represented by the formula [1]. It has high heat resistance and high unsusceptibility to oxidation and can improve solubility and dispersibility in various solvents. [In the formula, Rand Reach independently represents hydrogen, halogeno, cyano, etc.; and Rand Reach independently represents Calkyl, Chaloalkyl, phenyl optionally substituted by W, thienyl optionally substituted by W, etc. (W represents chlorine, etc.).]

Thiophene compound having sulfonyl group and process for producing the same

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Funabashi, Japan

Nobuyuki Kakiuchi