Abstract: A catalyst precursor represented by the following formula (1) having an average particle diameter (D50), which is a particle diameter at which a cumulative volume fraction is 50%, of 10 ?m or more and 40 ?m or less. Moa1Bib1Nic1Cod1Fee1Xf1Yg1Zh1Oi1??(1) where, Mo, Bi, Ni, Co and Fe represent molybdenum, bismuth, nickel, cobalt, and iron, respectively; X is tungsten or the like; Y is potassium or the like; and Z belongs to the 1st to 16th groups in the periodic table and represents at least one element selected from elements other than the above Mo, Bi, Ni, Co, Fe, X, and Y.

Abstract: A gas generator includes a housing, a gas generating agent, and a filter. The filter is in a hollow cylindrical shape that surrounds a combustion chamber where the gas generating agent is accommodated. The filter is made of a wound body or a braided body of metal wire rods, and held by the housing in an axially compressed state by being sandwiched between a top plate portion and a bottom plate portion of the housing. When sandwiching is removed to apply no load, the filter has an axial length expanded by at least 1 mm as compared with a state in which the filter is sandwiched between the top plate portion and the bottom plate portion.

Abstract: The present invention includes a fused polycyclic aromatic compound represented by general formula (1), where in formula (1), one among R1 and R2 is represented by general formula (2) and represents a substituent having three to five ring structures, and the other among R1 and R2 represents a hydrogen atom, where in formula (2), n represents an integer of 0-2, R3 represents a divalent linking group obtained by removing two hydrogen atoms from benzene or naphthalene, R4 represents a divalent linking group obtained by removing two hydrogen atoms from an aromatic ring of an aromatic hydrocarbon, and when n is 2, a plurality of R4's may be the same as or different from each other, R5 represents an aromatic hydrocarbon group.

Abstract: This resin composition comprises a bismaleimide compound (A) including a constituent unit represented by formula (1) and containing maleimide groups at both ends of the molecular chain, at least one resin or compound (B) selected from the group consisting of maleimide compounds other than the bismaleimide compound (A), cyanic acid ester compounds, benzoxazine compounds, epoxy resins, carbodiimide compounds, and compounds having an ethylenically unsaturated group, and a photocuring initiator (C). In formula (1), R1 represents a linear or branched C1-C16 alkylene group or a linear or branched C2-C16 alkenylene group, R2 represents a linear or branched C1-C16 alkylene group or a linear or branched C2-C16 alkenylene group, the R3 moieties each independently represent a hydrogen atom, a linear or branched C1-C16 alkyl group, or a linear or branched C2-C16 alkenyl group, n1 each independently indicates an integer of 1-4, and n2 each independently indicates an integer of 1-4.

Abstract: A curable resin composition containing: a maleimide resin (A) having a cyclic imide bond obtained by reacting a diamine (a-1) derived from a dimer acid, a tetracarboxylic dianhydride (a-2), and a maleic anhydride; a maleimide resin (B) represented by the following formula (1); and a curing accelerator (D), in which the components (A), (B), and (D) are compatible with one another: in the formula (1), plural R each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. m represents an integer of 0 to 3. n represents the number of repetitions, and an average value thereof is 1<n<5.

Abstract: A resin composition according to the present invention includes: (A) a bismaleimide compound containing a constituent unit represented by formula (1) and a maleimide group at both terminals of a molecular chain; (B) a compound containing at least one carboxylic group; and (C) a photocuring initiator. (In formula (1), R1 represents a C1-C16 linear or branched alkylene group, or a C2-C16 linear or branched alkenylene group. R2 represents a C1-C16 linear or branched alkylene group, or a C2-C16 linear or branched alkenylene group. R3 each independently represents a hydrogen atom, a C1-C16 linear or branched alkylene group, or a C2-C16 linear or branched alkenylene group. n1 each independently represents an integer of 1-4. n2 each independently represents an integer of 1-4.

Abstract: To provide an optical laminate that exhibits an achromatic silver color even when observed from any angle in the case of using an optical laminate including a cholesteric liquid crystal layer exhibiting a silver color, and a polarizing lens and eyewear using the same. An optical laminate for eyewear includes a light reflecting layer comprising at least one cholesteric liquid crystal layer; and a support sandwiching the light reflecting layer, in which a reflection hue of the light reflecting layer exhibits a silver color, the light reflecting layer has a reflection characteristic over a wavelength range of at least 380 nm to 900 nm, and an absolute value of a difference (?R1?R2) between an average reflectance (R1) at 500 nm to 700 nm and an average reflectance (R2) at 701 nm to 900 nm of the light reflecting layer is 10 points or less in the wavelength range.

Abstract: A pretreatment composition is used to form a wet precoat layer for forming an image on a fabric by an inkjet method, wherein [1] the water-based ink composition contains water, a pigment, a resin emulsion, a water-soluble organic solvent, and a surfactant, [2] the pretreatment composition is used to form the wet precoat layer in which an amount of the pretreatment composition applied per unit area is more than 0.035 g/cm2 and less than 0.070 g/cm2, [3] the pretreatment composition contains water, more than 1.4 mass % and less than 10.5 mass % of a cationic polymer, and 0.1 mass % or more and less than 2.7 mass % of a crosslinking agent with respect to the total mass of the pretreatment composition, and [4] the cationic polymer contains at least one selected from an allylamine structural unit, a diallylamine structural unit, a diallylammonium structural unit, and an epihalohydrin structural unit.

Abstract: A gas generator includes a housing main body made of metal, a holder assembly, and an igniter. The holder assembly includes a holder portion made of metal and a connector portion made of resin. The holder portion includes a first barrel portion and an annular projection. The connector portion includes a second barrel portion and a cylindrical portion. The cylindrical portion is inserted in the housing main body and externally attached to the first barrel portion. As a portion of the housing main body corresponding to the cylindrical portion is decreased in diameter, the cylindrical portion is compressed by being sandwiched between the portion of the housing main body decreased in diameter and the first barrel portion so as to seal a gap between the housing main body and the first barrel portion.

Abstract: To provide a pretreatment liquid for inkjet textile printing, having excellent color development in the inkjet textile printing process, excellent color fastness to washing on printed fabrics, and little pretreatment trace residue. The solution therefor is a pretreatment liquid for inkjet textile printing containing 100 parts by mass of a cationic polymer (A), 5 parts by mass or more and less than 100 parts by mass of a (meth)acrylate-based vinyl copolymer (B), and 2 parts by mass or more and less than 30 parts by mass of a crosslinking agent (C), each being in solid content, and water, the liquid having a solid content by weight of 2 mass % or more and 30 mass % or less.

Abstract: Provided is a maleimide resin with superior solution stability. Also provided is a cured product with a superior dielectric characteristic that is obtained by curing a curable resin composition in which said maleimide resin is used. The maleimide resin expressed in formula (1), wherein the N,N?-(phenylene-di-(2,2,-propylidene)-di-p-phenylene) bismaleimide content is 90 area % or less. (In formula (1), n is the number of repetitions, and 1<n<5.

Abstract: A hollow package (103) includes a substrate (109), an element (111), a partition wall (113), and a top plate (115) and has one or more closed hollow parts (117) that are covered by the substrate (109), the partition wall (113), and the top plate (115), and the substrate (109), the partition wall (113), and the top plate (115) are sealed with a cured product of a sealing resin composition. The top plate (115) and the partition wall (113) are composed of an organic material, and the thickness of the top plate (115), the thickness of the partition wall (113), the width of the partition wall, and the maximum width of the hollow part (117) are each within respective predetermined ranges. The sealing resin composition comprises (A) an epoxy resin that includes one or more selected from the group consisting of an epoxy resin containing two epoxy groups in the molecule and an epoxy resin containing three or more epoxy resins in the molecule and (B) an inorganic filler.

Abstract: A cleaning solution containing a compound represented by formula (1), a compound represented by formula (2), and water; and an inkjet printer cleaning method using the same. R1—O(EO)m(PO)nH??(1) R2—O(EO)LH??(2) In formula (1), R1 represents a linear or branched C1-C30 alkyl group. EO represents an ethyleneoxy group, and PO represents a propyleneoxy group. m and n each independently represent an integer of 1-5. m:n, which is the ratio between m and n, is at least 1:2 and smaller than 3:2. In formula (2), R2 represents a linear or branched C1-C30 alkyl group, or an aryl group. EO represents an ethyleneoxy group. L represents an integer of at least 10. Formula (1): R1—O(EO)m(PO)nH. Formula (2): R2—O(EO)LH.

Abstract: The present invention relates to an anthraquinone compound represented by formula (1) (in formula (1), R1 represents a C1-9 alkyl group and R2 represents a C1-8 alkyl group): a yellow dichroic pigment that includes this compound; a liquid crystal composition for light control that contains this yellow dichroic pigment and a liquid crystal material; and a light control element that uses this composition.

Abstract: An object of the present invention is to provide a novel photosensitive resin precursor that can be developed with an alkali and ring-closed even at low temperatures, and preferably has excellent thermal properties and excellent electric properties after curing, and also to provide a use application thereof. As means for achieving the object, disclosed are a bismaleimide compound comprising, in one molecule, two partial structures in each of which a carbon atom having a substituent represented by the following formula (A) (wherein Y represents a direct bond or a divalent linking group), and a carbon atom having a hydroxy group are directly bonded to each other, a polymer which is a self-polymer of the bismaleimide compound, and a benzoxazole which is an intramolecular dehydrated ring-closed product of the polymer.

Abstract: This base proliferating agent is represented by formula (1) or (2), where, in formula (1) and (2), R1, R2, and R3 independently represent a hydrogen atom or a substituent and n independently represents an integer from 1 to 4. A base-reactive resin composition can include this base proliferating agent and a base-reactive compound.

Abstract: Provided is a thermally curable resin composition which can give cured objects having low-dielectric characteristics, high heat resistance, a low modulus, and a low water absorption and which has satisfactory adhesiveness to substrates. The thermally curable resin composition comprises: a bismaleimide compound (A) including a constituent unit represented by formula (1) and containing maleimide groups at both ends of the molecular chain; a thermally curable resin or compound (B); and a polymerization initiator (C) and/or a curing accelerator (D).

Abstract: Alleviation of vascular disorder such as vasculitis or angialgia is required in the use of a water-soluble drug causing vascular disorder. According to the present invention, a composition containing a water-soluble drug causing vascular disorder; a solution for use in preparation of an administration solution containing a water-soluble drug causing vascular disorder; and a kit including a water-soluble drug preparation causing vascular disorder and the aforementioned solution, each of which contains a nonionic surfactant in an amount necessary for alleviation of vascular disorder, are provided.

Abstract: The present disclosure relates to an optical film includes (A) an optical functional layer and (B) a block layer, and (B) the block layer has a cured product of a resin composition containing (B-1) a thermoplastic resin and (B-2) an ultraviolet curable resin.