Abstract: Provided are a polyamide having a structural unit represented by General Formula [1], and the like. In General Formula [1], R1 is a divalent organic group represented by General Formula [2], and R2 is a divalent organic group. In General Formula [2], n1 and n2 are each independently an integer of 0 to 4, and in a case where a plurality of R3's are present, the plurality of R3's each independently represent a monovalent substituent.

Abstract: Provided is a polybenzoxazole having a structural unit represented by General Formula [1]. In General Formula [1], R1 is a tetravalent organic group represented by General Formula [2], and R2 is a divalent organic group. In General Formula [2], two n’s are each independently an integer of 0 to 3, in a case where a plurality of R3?s are present, the plurality of R3?s each independently represent a monovalent substituent, and *1, *2, *3, and *4 each independently represent a bonding site, in which one of *1 and *2 is bonded to an oxygen atom in General Formula [1] and the other is bonded to a nitrogen atom in General Formula [1], and one of *3 and *4 is bonded to an oxygen atom in General Formula [1] and the other is bonded to a nitrogen atom in General Formula [1].

Abstract: Provided are a fluorinated diamine represented by General Formula [1A] or a salt of the fluorinated diamine; a polyamide including a structural unit derived from the diamine or the salt thereof; a cyclized polyamide; and the like. In General Formula [1A], in a case where a plurality of R1's are present, the plurality of R1's are each independently at least one selected from the group consisting of an alkyl group, an alkoxy group, a halogen atom, a haloalkyl group, and a haloalkoxy group, and two n's are each independently an integer of 0 to 3.

Abstract: A novolak resin including a partial structure represented by —C(CF3)H—. In addition, there are provided a photosensitive resin composition containing the above-described novolak resin and a photosensitizing agent. In addition, there is provided an epoxy resin having a partial structure represented by —C(CF3)H—. In addition, there is provided a curable resin composition containing the novolak resin or the epoxy resin. In addition, there is provided a cured substance obtained by curing the composition. In addition, there is provided a production method for a novolak resin, including reacting an aromatic compound with fluoral in a presence of an acid catalyst to produce a novolak resin having a partial structure represented by —C(CF3)H—. Further, there is provided a production method for an epoxy resin, including an epoxidation step of reacting a novolak resin having a partial structure represented by —C(CF3)H— with epihalohydrin in a presence of a base.

Abstract: A curable resin represented by General Formula (1). In General Formula (1), R1 each independently represent a monovalent substituent (an alkyl group, an alkoxy group, a fluorine atom, and the like), m is 0 to 4, n is 0 to 40, and R2's are each independently a monovalent group including a polymerizable functional group.

Abstract: The invention is to provide a method for producing a metal-supported zeolite for alcoholic beverages capable of efficiently removing unwanted components contained in alcoholic beverages to thereby reduce silver release, and the metal-supported zeolite for alcoholic beverages, and to provide a method for producing alcoholic beverages using the metal-supported zeolite for alcoholic beverages.

Abstract: A polyimide which is obtained by a reaction of an aromatic diamine having a 1,1,1-trifluoro-2,2-ethanediyl group (—C(CF3)H—), as a linkage skeleton, with a tetracarboxylic dianhydride is easily dissolved in an organic solvent and exhibits excellent film forming properties. In addition, the thus-obtained polyimide can be used for an optical film and a display device.

Abstract: The present invention has the effect of making it possible to produce 1,1,1-trifluoro-2,2-bisarylethane efficiently by a simple procedure by condensing a mixture of fluoral and hydrogen fluoride with an aryl compound under anhydrous conditions. The purity of the 1,1, 1-trifluoro-2, 2-bisarylethane obtained can be raised by a simple purification method such as crystallization or distillation. The obtained 1,1,1-trifluoro-2,2-bisarylethane can be increased in purity by a simple purification method such as crystallization operation or distillation.

Abstract: A method and device for efficiently removing an unwanted component included in a beverage, which includes bringing the beverage into contact with a metal-supported zeolite.

Abstract: A halogenated ?-fluoroether of the formula (2) (where HaloR represents haloalkyl; R1 represents hydrogen, halogen, alkyl or substituted alkyl; and R2 represents alkyl or substituted alkyl) is produced efficiently on an industrial scale by reacting a halogenated aldehyde of the formula (1) (where HaloR represents haloalkyl) or an equivalent thereof with hydrogen fluoride.

Abstract: Fluoral is obtained by gas-phase fluorination of chloral in the presence of a catalyst and then reacted with trimethyl orthoformate, thereby readily forming 1,2,2,2-tetrafluoroethyl methyl ether as an intermediate for production of desflurane. 1,2,2,2-Tetrafluoroethyl difluoromethyl ether (desflurane) is produced with high yield from the thus-formed 1,2,2,2-tetrafluoroethyl methyl ether by chlorination and fluorination. This method enables efficient industrial-scale production of desflurane useful as an inhalation anesthetic.

Abstract: The metal-supported zeolite for alcoholic beverages of the present invention is a zeolite that carries a metal component, wherein the metal component is silver, and the zeolite is at least one selected from a beta-type one and a Y-type one. The metal-supported zeolite is for removing unwanted components contained in alcoholic beverages.

Abstract: A halogenated ca-fluoroether of the formula (2) (where HaloR represents haloalkyl; R1 represents hydrogen, halogen, alkyl or substituted alkyl; and R2 represents alkyl or substituted alkyl) is produced efficiently on an industrial scale by reacting a halogenated aldehyde of the formula (1) (where HaloR represents haloalkyl) or an equivalent thereof with hydrogen fluoride.

Abstract: Fluoral is obtained by gas-phase fluorination of chloral in the presence of a catalyst and then reacted with trimethyl orthoformate, thereby readily forming 1,2,2,2-tetrafluoroethyl methyl ether as an intermediate for production of desflurane. 1,2,2,2-Tetrafluoroethyl difluoromethyl ether (desflurane) is produced with high yield from the thus-formed 1,2,2,2-tetrafluoroethyl methyl ether by chlorination and fluorination.

Abstract: The metal-supported zeolite for alcoholic beverages of the present invention is a zeolite that carries a metal component, wherein the metal component is silver, and the zeolite is at least one selected from a beta-type one and a Y-type one. The metal-supported zeolite is for removing unwanted components contained in alcoholic beverages.

Abstract: The metal-supported zeolite for alcoholic beverages of the present invention is a zeolite that carries a metal component, wherein the metal component is silver, and the zeolite is at least one selected from a beta-type one and a Y-type one. The metal-supported zeolite is for removing unwanted components contained in alcoholic beverages.

Abstract: The invention is to provide a method for producing a metal-supported zeolite for alcoholic beverages capable of efficiently removing unwanted components contained in alcoholic beverages to thereby reduce silver release, and the metal-supported zeolite for alcoholic beverages, and to provide a method for producing alcoholic beverages using the metal-supported zeolite for alcoholic beverages.

Abstract: A method and device for efficiently removing an unwanted component included in a beverage, which includes bringing the beverage into contact with a metal-supported zeolite.

Abstract: The metal-supported zeolite for alcoholic beverages of the present invention is a zeolite that carries a metal component, wherein the metal component is silver, and the zeolite is at least one selected from a beta-type one and a Y-type one. The metal-supported zeolite is for removing unwanted components contained in alcoholic beverages.

Abstract: There are disclosed sulfonic acid precursor compositions, as are methods of using these compositions in, for example, photolithography.