Abstract: An amide derivative represented by the following Formula (1) is provided as an amide derivative showing a significantly excellent effect for a pest control action. In the following Formula (1), A represents a carbon atom, a nitrogen atom, or the like, and K represents a non-metal atomic group necessary for forming a cyclic linking group derived from benzene or a heterocyclie. X represents a halogen atom or the like; n represents an integer of from 0 to 4. R1 and R2 represent hydrogen atoms, alkyl groups, or the like. T represents —C(=G1)-Q1 or —C(=G1)-G2Q2, and G1 to G3 each represent oxygen atoms or the like. Q1 and Q2 each represent a hydrogen atom, an alkyl group, an aryl group, or the like. Y1 and Y5 each represent a halogen atom or the like, Y2 and Y4 each represent a hydrogen atom or the like, and Y3 represents a C2-C5 haloalkyl group.

Abstract: Disclosed are: a practical color changeable optical filter that can change hue or saturation by a relatively simple structure, the color changeable optical filter including two or more polarizers 20, 30 containing a dichroism pigment and a frame 10 that supports the polarizers 20, 30, wherein a polarization plane of light incident on at least one polarizer 30 or a polarization plane of light output from at least one polarizer 20 is rotated relatively, whereby the hue or saturation of light passing through the optical filter is changed; and eyeglasses provided with the color changeable optical filter.

Abstract: A process for producing an episulfide compound for an optical material of the present invention includes a step of chlorinating glycerin to obtain dichloropropanol; a step of epoxidizing the dichloropropanol to obtain epichlorohydrin; a step of reacting the epichlorohydrin with a sulfating agent to obtain a bis(chlorohydrin) (di)sulfide compound thought a thiol compound; a step of epoxidizing the bis(chlorohydrin) (di)sulfide compound under basic conditions to obtain an epoxy compound; and a step of reacting the epoxy compound with a sulfating agent to obtain an episulfide compound represented by following General Formula (1): wherein, in the formula, n represents 0 or 1.

Abstract: Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) including aliphatic polyisocyanate (a1) and a modified aliphatic polyisocyanate (a2); and polythiol (b) having a di- or higher functional thiol group, in which the modified aliphatic polyisocyanate (a2) is contained in the polyisocyanate (a) in the amount of less than or equal to 60 weight %.

Abstract: An amide derivative represented by Formula (3), which exhibits excellent efficacy in pest control effect, is produced by allowing a compound represented by the following Formula (1) and a compound represented by Formula (2) to react with each other. In Formula (1) to Formula (3), Y1 and Y2 each represent a halogen atom or a haloalkyl group; Rf represents a C3-C4 perfluoroalkyl group; and R1 and R2 each represent a hydrogen atom or an alkyl group; LG represents a leaving group; T represents a hydrogen atom or a fluorine atom; X1, X3, X4, and X5 each represent a hydrogen atom, a halogen atom, or the like; and A represents a nitrogen atom, a methine group, or the like.

Abstract: Disclosed are: a practical color changeable optical filter that can change hue or saturation by a relatively simple structure, the color changeable optical filter including two or more polarizers 20, 30 containing a dichroism pigment and a frame 10 that supports the polarizers 20, 30, wherein a polarization plane of light incident on at least one polarizer 30 or a polarization plane of light output from at least one polarizer 20 is rotated relatively, whereby the hue or saturation of light passing through the optical filter is changed; and eyeglasses provided with the color changeable optical filter.

Abstract: An amide derivative represented by the following Formula (1) is provided as an amide derivative showing a significantly excellent effect for a pest control action. In the following Formula (1), A represents a carbon atom, a nitrogen atom, or the like, and K represents a non-metal atomic group necessary for forming a cyclic linking group derived from benzene or a heterocyclie. X represents a halogen atom or the like; n represents an integer of from 0 to 4. R1 and R2 represent hydrogen atoms, alkyl groups, or the like. T represents —C(=G1)-Q1 or —C(=G1)-G2Q2, and G1 to G3 each represent oxygen atoms or the like. Q1 and Q2 each represent a hydrogen atom, an alkyl group, an aryl group, or the like. Y1 and Y5 each represent a halogen atom or the like, Y2 and Y4 each represent a hydrogen atom or the like, and Y3 represents a C2-C5 haloalkyl group.

Abstract: An amide derivative represented by the following Formula (1) is provided as an amide derivative showing a significantly excellent effect for a pest control action. In the following Formula (1), A represents a carbon atom, a nitrogen atom, or the like, and K represents a non-metal atomic group necessary for forming a cyclic linking group derived from benzene or a heterocyclic. X represents a halogen atom or the like; n represents an integer of from 0 to 4. R1 and R2 represent hydrogen atoms, alkyl groups, or the like. T represents —C(=G1)-Q1 or —C(=G1)-G2Q2, and G1 to G3 each represent oxygen atoms or the like. Q1 and Q2 each represent a hydrogen atom, an alkyl group, an aryl group, or the like. Y1 and Y5 each represent a halogen atom or the like, Y2 and Y4 each represent a hydrogen atom or the like, and Y3 represents a C2-C5 haloalkyl group.

Abstract: The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan ? peak at both less than 0° C. and 0° C. or more and 70° C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5° C./min and a measurement frequency of 10 Hz.

Abstract: A method for producing meta-xylylenediamines includes a reaction step in which monohalogenated benzenes, formaldehydes, and an amide compound having a primary amide group or a secondary amide group are allowed to react in the presence of an acidic liquid, a dehalogenation step in which the halogen atom derived from the monohalogenated benzenes is replaced with a hydrogen atom, and a deprotection step in which the primary amide group or the secondary amide group derived from the amide compound is converted to an amino group. In the reaction step, the acidic liquid contains inorganic acid, the equivalent ratio of the hydrogen atom of the inorganic acid relative to the monohalogenated benzenes is more than 16; the acidic liquid has an inorganic acid concentration of more than 80 mass %; and the reaction temperature is more than 40° C.

Abstract: A method for producing meta-xylylenediisocyanates includes a reaction step in which monohalogenated benzenes, formaldehydes, and an amide compound represented by general formula (1) below are allowed to react in the presence of an acidic liquid to produce a bisamide compound; a dehalogenation step in which in the bisamide compound, the halogen atom derived from the monohalogenated benzenes is replaced with a hydrogen atom; and a thermal decomposition step in which the bisamide compound from which the halogen atom is eliminated is subjected to thermal decomposition. In the reaction step, the acidic liquid contains inorganic acid, the equivalent ratio of the hydrogen atom of the inorganic acid relative to the monohalogenated benzenes is more than 14, the acidic liquid has an inorganic acid concentration of more than 90 mass %, and the reaction temperature is more than 10° C. General formula (1): wherein R1 represents an alkoxy group or an amino group.

Abstract: A polymerizable composition for an optical material of the present invention includes polyisocyanate (a) including aliphatic polyisocyanate (a1) and a modified aliphatic polyisocyanate (a2), an episulfide (b), and a polythiol (c).

Abstract: A process for producing an episulfide compound for an optical material of the present invention includes a step of chlorinating glycerin to obtain dichloropropanol; a step of epoxidizing the dichloropropanol to obtain epichlorohydrin; a step of reacting the epichlorohydrin with a sulfating agent to obtain a bis(chlorohydrin) (di)sulfide compound thought a thiol compound; a step of epoxidizing the bis(chlorohydrin) (di)sulfide compound under basic conditions to obtain an epoxy compound; and a step of reacting the epoxy compound with a sulfating agent to obtain an episulfide compound represented by following General Formula (1): wherein, in the formula, n represents 0 or 1.

Abstract: Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) including aliphatic polyisocyanate (a1) and a modified aliphatic polyisocyanate (a2); and polythiol (b) having a di- or higher functional thiol group, in which the modified aliphatic polyisocyanate (a2) is contained in the polyisocyanate (a) in the amount of less than or equal to 60 weight %.

Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.

Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.

Abstract: An amide derivative represented by Formula (3), which exhibits excellent efficacy in pest control effect, is produced by allowing a compound represented by the following Formula (1) and a compound represented by Formula (2) to react with each other. In Formula (1) to Formula (3), Y1 and Y2 each represent a halogen atom or a haloalkyl group; Rf represents a C3-C4 perfluoroalkyl group; and R1 and R2 each represent a hydrogen atom or an alkyl group; LG represents a leaving group; T represents a hydrogen atom or a fluorine atom; X1, X3, X4, and X5 each represent a hydrogen atom, a halogen atom, or the like; and A represents a nitrogen atom, a methine group, or the like.

Abstract: Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) which is obtained from a plant-derived raw material and includes a modified product of aliphatic polyisocyanate, and polyol (d) which is a plant-derived compound.

Abstract: The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan ? peak at both less than 0° C. and 0° C. or more and 70° C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5° C./min and a measurement frequency of 10 Hz.

Abstract: Disclosed is a polymerizable composition for an optical material containing polyisocyanate (a) which is obtained from a plant-derived raw material and includes a modified product of aliphatic polyisocyanate, alicyclic polyisocyanate (b), and polyol (c) which has a hydroxyl value of 300 mgKOH/g to 650 mgKOH/g and the average number of functional groups of 2 or more and less than 7, and which is obtained from a plant-derived raw material.