Abstract: Provided is a method for producing an isocyanate compound, including a step (1) of reacting a primary amine compound with a carbonic acid derivative to obtain an N-substituted carbamate compound while extracting a by-product compound having a boiling point lower than a boiling point of the N-substituted carbamate compound, a step (2) of performing thermal decomposition of the N-substituted carbamate compound on a reaction solution obtained in the step (1) in the presence of an aprotic solvent to obtain an isocyanate compound while extracting a by-product hydroxy compound, a step (3) of separating the isocyanate compound and the aprotic solvent from a reaction solution obtained in the step (2), and a step (4) of removing a component having a boiling point higher than a boiling point of the isocyanate compound from a fraction obtained in the step (3) to purify the isocyanate compound.

Abstract: 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.

Abstract: This isocyanate production method, for continuously producing an isocyanate while suppressing side reactions, is a method for producing an isocyanate through the thermal decomposition of carbamate, and comprises: a thermal decomposition step in which a mixed solution containing carbamate and a compound (A) having a specific structure is continuously put into a pyrolysis reactor and carry out a pyrolysis reaction of carbamate; a low-boiling-point decomposition product recovery step in which a low-boiling-point decomposition product having a lower standard boiling point than the compound (A) is continuously extracted in a gaseous form from the pyrolysis reactor, and a high-boiling-point component recovery step in which a liquid phase component, which is not recovered in a gaseous form in the low-boiling-point decomposition product recovery step, is continuously extracted as a high-boiling-point component from the pyrolysis reactor.

Abstract: The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and (2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

Abstract: 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.

Abstract: The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and (2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

Abstract: 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.

Abstract: 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.

Abstract: An object of the present invention is to provide a method for production of a high purity conjugated diolefin. The method for production of a conjugated diolefin of the present invention comprises steps of supplying a source gas containing a C4 or higher monoolefin and an oxygen-containing gas into a reactor, bringing a catalyst into contact with the gas mixture, compressing a gas containing a conjugated diolefin produced by an oxidative dehydrogenation reaction to obtain a liquefied gas and rinsing the liquefied gas with water.

Abstract: An object of the present invention is to provide a method for production of a high purity conjugated diolefin. The method for production of a conjugated diolefin of the present invention comprises steps of supplying a source gas containing a C4 or higher monoolefin and an oxygen-containing gas into a reactor, bringing a catalyst into contact with the gas mixture, compressing a gas containing a conjugated diolefin produced by an oxidative dehydrogenation reaction to obtain a liquefied gas and rinsing the liquefied gas with water.

Abstract: A door glass guiding structure is provided which can be constituted by using a glass guide member made from a low-priced material such as rolled sheet, and is capable of satisfactorily maintaining required functions. The door glass guiding structure 3 comprises the glass guide member 10 which is disposed between two door glasses supported side by side on a door for example, the side door 2) of the vehicle so as to guide the vertical movement of at least one of the door glasses, the core bracket 21 which is constituted of a member different from the glass guide member 10 and is mounted on top end of the glass guide member 10 so as to extend the length thereof upward, and the guide upper end seal member 13 attached to cover the external surface of the core bracket 21 so as to provide water-tight sealing on the top ends of the two door glasses.

Abstract: A door glass guiding structure is provided which can be constituted by using a glass guide member made from a low-priced material such as rolled sheet, and is capable of satisfactorily maintaining required functions. The door glass guiding structure 3 comprises the glass guide member 10 which is disposed between two door glasses supported side by side on a door for example, the side door 2) of the vehicle so as to guide the vertical movement of at least one of the door glasses, the core bracket 21 which is constituted of a member different from the glass guide member 10 and is mounted on top end of the glass guide member 10 so as to extend the length thereof upward, and the guide upper end seal member 13 attached to cover the external surface of the core bracket 21 so as to provide water-tight sealing on the top ends of the two door glasses.