Abstract: An active energy ray-curable resin composition containing: a reaction product (X) of a component (A) and a component (B) below: (A) at least one selected from the group consisting of meta-xylylenediamine and para-xylylenediamine; (B) at least one selected from the group consisting of unsaturated carboxylic acids represented by the following general formula (1) and derivatives of the unsaturated carboxylic acids: wherein, in the formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having from 1 to 8 carbon atoms, an aryl group having from 6 to 12 carbon atoms, or an aralkyl group having from 7 to 13 carbon atoms; (C) a compound having at least one group selected from the group consisting of a glycidyl group and an isocyanate group, and an ethylenically unsaturated bond-containing group; and (D) a phosphoric acid derivative having an ethylenically unsaturated bond-containing group.
Abstract: A curable composition is provided that includes an alkenyl phenol A, an epoxy-modified silicone B, an epoxy compound C other than the epoxy-modified silicone B, and a thermosetting resin E, in which the thermosetting resin E contains one or more selected from the group consisting of a maleimide compound, a cyanate ester compound, a phenolic compound, an alkenyl-substituted nadimide compound, and an epoxy compound.
Abstract: A gas concentration regulator for use in culture of anaerobic bacteria, including: (a) dehydroascorbic acid; (c) a transition metal catalyst; (d) activated carbon; (e) at least one selected from the group consisting of an alkali metal carbonate, an alkali metal hydroxide, and an alkaline earth metal hydroxide; and (f) water.
Abstract: Provided are an aqueous composition with which the surface of stainless steel is adequately roughened in an efficient manner with few steps, a method for roughening stainless steel, etc. The problem mentioned above is solved by an aqueous composition for roughening the surface of stainless steel, the aqueous composition including 0.1-20 mass % of hydrogen peroxide with reference to the total amount of the aqueous composition, 0.25-40 mass % of copper ions with reference to the total amount of the aqueous composition, and 1-30 mass % of halide ions with reference to the total amount of the aqueous composition.
Abstract: A medical material comprising film obtained from a polyester wherein the polyester has a weight average molecular weight of 1,250,000 or greater determined by gel permeation chromatography calibrated with polystyrene standards. The polyester comprises a 3-hydroxybutyrate unit and a 4-hydroxybutyrate unit as polymerization units, and proportion of the 4-hydroxybutyrate unit relative to all monomer units is from 14 mol % to 40 mol %. The polyester film is useful for medical apparatus, packaging material for food, plastic sheet for agriculture, flowerpots for seedings, and sheets for construction and engineering.
Abstract: A sheet formed from carbon fiber reinforced thermoplastic resin with high heat resistance, and a production method of said sheet is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a constituent unit derived from a dihydric phenol represented by formula (1), and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R1-R4 independently represent a hydrogen, a halogen, a nitro, or a methyl group; X represents a divalent group represented by any of formulas (2) to (4).
Abstract: The resin composition of the present invention is a resin composition containing: a bismaleimide compound (A) containing a constituent unit represented by the following formula (1) and maleimide groups at both ends of the molecular chain; a compound (B) containing one or more carboxy groups; and a photo initiator (C). In the formula (1), R1 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. R2 represents a linear or branched alkylene group having 1 to 16 carbon atoms, or a linear or branched alkenylene group having 2 to 16 carbon atoms. Each R3 independently represents a hydrogen atom, a linear or branched alkyl group having 1 to 16 carbon atoms, or a linear or branched alkenyl group having 2 to 16 carbon atoms. Each n independently represents an integer of 1 to 10.
Abstract: Provided are: a method for manufacturing a molded article having high compressive strength and excellent appearance by compressing a shaped article obtained using a 3D printer, and a material containing another resin; and a manufacturing device for the same. The method for manufacturing a molded article includes: shaping a filament containing a resin and continuous reinforcing fibers using a 3D printer; and manufacturing a molded article by compressing a second material containing resin against a shaped article formed by the shaping, wherein the shaped article has a void ratio of from 5 to 30%.
Abstract: Provided is an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, wherein a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.10 to 3.0. Also provided are a gas barrier film and a laminate in which the epoxy resin composition is used.
Abstract: Provided is a polycarbonate resin having excellent solubility in low-boiling-point non-halogenated solvents and having a high glass transition temperature. The polycarbonate resin includes constituent units (A) represented by general formula (1) and constituent units (B) represented by general formula (2), the molar ratio of the constituent units (A) to the constituent units (B), A/B, being 45/55 to 95/5.
Abstract: The present application addresses the problem of providing a new method for producing a polycarbonate resin having excellent properties. This problem has been solved by providing a method for producing a polycarbonate resin containing a constituent unit derived from an aromatic dihydroxy compound represented by formula (1). The method includes polymerizing the aromatic dihydroxy compound represented by formula (1). During the polymerization, a raw material substance is used in which the concentration of compounds represented by formula (2), which are impurities, is 80 ppm or less relative to the total weight of the aromatic dihydroxy compound represented by formula (1) and the compounds represented by formula (2). (In formula (1) and formula (2), R1 to R3, X, a, b, m and n are as described in the description of the present application.
Abstract: The resin composition of the present invention contains a maleimide compound (A) represented by the following formula (1); and a photo initiator (B) having an absorbance of 0.1 or more at a wavelength of 405 nm (h-line). In the formula (1), R1, R2, and R3 each independently represent an alkyl group or an alkoxy group which may have a hydrogen atom, a halogen atom, a hydroxyl group, or a substituent, R4 represents an alkylene group, an alkenylene group, an alkoxylene group, or an arylene group which may have a substituent, and R5 and R6 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms, or a linear or branched alkenyl group having 1 to 6 carbon atoms.
Abstract: Provided is a transparent film having advantages such as excellent heat resistance, a birefringence that is not easily affected by the film forming conditions, and being uniform. According to one embodiment, there is provided a transparent film including a resin composition that includes a polycarbonate resin (A) having a structural unit represented by formula (1) and having a photoelastic coefficient of 80×10?12 m2/N or less.
Abstract: An easily tearable film includes polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an ?,?-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the molar concentration of phosphorus atoms, the total molar concentration of alkali metal atoms and the total molar concentration of alkaline earth metal atoms, and Mn of the semi-aromatic polyamide resin satisfy predetermined relationships.
Abstract: The present application provides a polycarbonate-based coating resin composition which exhibits high adhesiveness. The above are achieved by a polycarbonate resin composition which contains (A) a polycarbonate resin that contains a constituent unit represented by general formula (1) and a terminal structure represented by general formula (2) and (B) a polyisocyanate compound, wherein 0.1% by mass or more of the polyisocyanate compound (B) is contained on the basis of the total mass of the polycarbonate resin (A) and the polyisocyanate compound (B). (In formula (1) and formula (2), R1 to R3, X, m and n are as defined in the description.
Abstract: The objective of the present invention is to provide a method for producing a halogenated carbonyl safely and efficiently. The method for producing a halogenated carbonyl according to the present invention is characterized in comprising the step of applying ultrasound to a composition containing a C1-4 halogenated hydrocarbon having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo in the presence of oxygen to decompose the C1-4 halogenated hydrocarbon.
Type:
Application
Filed:
September 2, 2020
Publication date:
September 15, 2022
Applicants:
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, MITSUBISHI GAS CHEMICAL COMPANY, INC.
Abstract: The present application provides a polycarbonate-based coating resin composition having high adhesiveness, more specifically provides a polycarbonate resin composition that contains not less than 0.1 parts by mass of a polyisocyanate compound and 100 parts by mass of a terminal-modified polycarbonate resin (A) having a structural unit (2) and a terminal structure represented by structural formula (1). [In formula (1) and formula (2), R1-R7, X, Y, Z, and a are as described in the description.
Abstract: A polyimide resin composition containing a polyimide resin (A) and a fluororesin (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the fluororesin (B) has a weight loss percentage measured using a differential scanning calorimeter after heating from 100° C. to 450° C. at a heating rate of 10° C.
Abstract: A fragrance composition comprising a compound represented by Formula (1): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 2 to 6 carbon atoms.
Abstract: The present invention can provide a cleaning solution containing 0.2-20 mass % of an amine compound (A), 40-70 mass % of a water-soluble organic solvent (B), and water, wherein the amine compound (A) contains at least one selected from the group consisting of n-butylamine, hexylamine, octylamine, 1,4-butanediamine, dibutylamine, 3-amino-1-propanol, N,N-diethyl-1,3-diaminopropane, and bis(hexamethylene)triamine, and the water-soluble organic solvent (B) has a viscosity of 10 mPa·s or less at 20° C. and a pH of 9.0-14.