Asahi Kasei Chemicals Corporation

Asahi Kasei Kabushiki Kaisha

Nippon Telegraph and Telephone Corporation

Asahi Kasei Kogyo Kabushiki Kaisha

Budianto Bijanto

Kazuhiro Onishi

Nobuhisa Miyake

Masaaki Shinohata

Yuji Kosugi

Koichi Nakaoka

Yusuke Sakurai

Atsushi Ohkubo

Takeharu Sasaki

Atsushi Okubo

Yusuke Ishii

Tamotsu Kodama

Kazuhiro Takagaki

Budianto Nishiyama

Setsuo Yamamatsu

Tomonari Watanabe

Haruyuki Minoura

Hironobu Okuyama

Kenji Moriyasu

Atsusi Kanai

Tsubasa Uematsu

Atsusi Terauchi

Akihiro Sato

Hajime Nagahara

Masakazu Yamauchi

Naoki Fujimoto

Tsutomu Katsumata

Hiroshi Inada

Kouji Takeuchi

Naoko Ishihara

Yusuke Ebe

Midori Nagamoto

Kazuo Tomoyasu

Hiroshi Miya

Shuji Kawabe

Maasaki Shinohata

A compound having an uretonimine group contains, as a structural unit, a carbodiimide compound derived from at least one of an aliphatic diisocyanate and an aromatic diisocyanate, and also contains an isocyanate compound as a structural unit, wherein the residue obtained by removing an isocyanate group from the isocyanate compound and the residue obtained by removing a carbodiimide group from the carbodiimide compound are different.

Compound, curing agent composition, resin composition, coating composition and resin cured product

A method is provided for collecting a compound of formula (III) (in which R31 is a monovalent to trivalent organic group and n31 is an integer of 1 to 3) from a liquid phase component that is formed as a by-product in a method for producing a compound of general formula (I) (in which R11 is a monovalent to trivalent organic group and n11 is an integer of 1 to 3), wherein the collection method contains steps (1) to (3) or steps (A) and (B), and step (4). Step (1): a step for reacting the liquid phase component with at least one active hydrogen-containing compound in a reactor. Step (2): a step for returning a condensed liquid obtained by cooling gas phase components in the reactor to the reactor. Step (3): a step for discharging gas phase components that are not condensed in the step (2) to the outside of the reactor. Step (A): a step for mixing the liquid phase component, water, and a compound of general formula (III). Step (B): a step for reacting the liquid phase component with water inside the reactor. Step (4): a step for discharging, as a liquid phase component inside the reactor, the reaction liquid containing the compound of general formula (III) to the outside of the reactor.

Organic amine collection method

The present invention provides a method for producing an amino acid aminoalkyl ester or an inorganic acid salt thereof by reacting a compound represented by general formula (I) shown below or a compound represented by general formula (III) shown below, or a salt thereof, and at least one compound selected from the group consisting of compounds represented by general formula (IV-I) shown below, compounds represented by general formula (IV-II) shown below, compounds represented by general formula (IV-III) shown below and compounds represented by general formula (IV-IV) shown below, or an inorganic acid salt thereof.

Method for producing amino acid aminoalkyl ester or inorganic acid salt thereof

A method is provided for collecting a compound of formula (III) (in which R31 is a monovalent to trivalent organic group and n31 is an integer of 1 to 3) from a liquid phase component that is formed as a by-product in a method for producing a compound of general formula (I) (in which R11 is a monovalent to trivalent organic group and n 11 is an integer of 1 to 3), wherein the collection method contains steps (1) to (3) or steps (A) and (B), and step (4). Step (1): a step for reacting the liquid phase component with at least one active hydrogen-containing compound in a reactor. Step (2): a step for returning a condensed liquid obtained by cooling gas phase components in the reactor to the reactor. Step (3): a step for discharging gas phase components that are not condensed in the step (2) to the outside of the reactor. Step (A): a step for mixing the liquid phase component, water, and a compound of general formula (III). Step (B): a step for reacting the liquid phase component with water inside the reactor. Step (4): a step for discharging, as a liquid phase component inside the reactor, the reaction liquid containing the compound of general formula (III) to the outside of the reactor.RNCO)&#x2003;&#x2003;(I)RNH)&#x2003;&#x2003;(III)

An isocyanate composition according to the present invention contains: a difunctional or more-functional isocyanate compound; and 1.0 ppm by mass to 1.0&#xd7;10ppm by mass, based on the isocyanate compound, of a compound having at least one unsaturated bond excluding unsaturated bonds constituting an aromatic ring, the compound being different from the isocyanate.

Isocyanate composition and method for producing isocyanate polymer

The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below:

Method for producing carbamate and method for producing isocyanate

An isocyanate production method is characterized by having: a carbamation step in which a carbonic acid ester, an inorganic acid salt of an amino acid derivative, and a basic compound are reacted to obtain a reaction mixture containing a carbamic acid ester derived from the carbonic acid ester, a hydroxy compound derived from the carbonic acid ester, and the carbonic acid ester; and a thermal decomposition step in which the carbamic acid ester is subjected to a thermal decomposition reaction to obtain an isocyanate.

Isocyanate production method

Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).

Separation method and method for producing isocyanate

The present invention provides an isocyanate composition including an isocyanate compound having an ethylenically unsaturated bond, a compound represented by formula (1) (in the formula, Rrepresents an a-valent organic group, Rrepresents a monovalent organic group, a represents an integer of 1 or 2), and/or a compound having a UV absorption in a spectral region of a decamer or higher isocyanate measured by gel permeation chromatography; and an isocyanate composition including an isocyanate compound having an ethylenically unsaturated bond, or a compound having at least one unsaturated bond other than an unsaturated bond constituting an aromatic ring or an inert compound such as a hydrocarbon compound or the like and having a carbon-carbon unsaturated bond other than an unsaturated bond constituting an aromatic ring; or the likeR&#x2014;(COO&#x2014;R)&#x2003;&#x2003;().

Isocyanate composition, method for producing isocyanate polymer and isocyanate polymer

An isocyanate composition according to the present invention contains an isocyanate compound of formula (1) and/or (2) (wherein Rrepresents a hydrogen or a monovalent organic group, and Rrepresents a monovalent organic group), and, relative to the total mass of the isocyanate compound in the composition, 1.0 ppm by mass to 10% by mass of a compound of formula (3): R&#x2014;(COO&#x2014;R)a (wherein Rrepresents an organic group with a valence of a, Rrepresents a monovalent organic group, and a represents an integer of 1 or 2), which is different from the isocyanate compound, and/or, 1.0 ppm by mass to 10% by mass of a compound having an UV absorption in an area of decamer or higher isocyanates in a measurement spectrum of gel permeation chromatography. 

Isocyanate composition, method for producing isocyanate composition, and method for producing isocyanate polymer

The present invention relates to an isothiocyanate production method using an organic primary amine and thiourea as starting materials; to a composition for transporting and storing an N-substituted O-substituted thiocarbamate that includes an N-substituted O-substituted thiocarbamate and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the carbamate groups of the N-substituted O-substituted thiocarbamate being in the range of 1 to 100; to a composition for transporting and storing a compound with a thioureido group that includes a compound with a thioureido group and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the thioureido groups of the compound with a thioureido group being in the range of 1 to 100; and to an isothiocyanate composition containing an isothiocyanate and a compound with a specific functional group.

Isothiocyanate production method, composition for transporting and storing N-substituted O-substituted thiocarbamate, and isothiocyanate composition

An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.

The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 mass % or more of a polyisocyanate; and 2.0 mass ppm to 1.0&#xd7;10mass ppm of a compound represented by the formula (1): 

Polyisocyanate composition and isocyanate polymer composition

The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 weight % or more of a polyisocyanate, and 2.0 mass ppm or more and 1.0&#xd7;10mass ppm or less of a compound having at least one unsaturated bond in which the compound is a different compound from the polyisocyanate, or 5.0 mass ppm or more and 2.0&#xd7;10mass ppm or less of at least one inactive compound selected from the group consisting of a hydrocarbon compound, an ether compound, a sulfide compound, a halogenated hydrocarbon compound, a Si-containing hydrocarbon compound, a Si-containing ether compound, and a Si-containing sulfide compound.

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Tokyo, Japan

Nobuhisa Miyake