A method for producing carbon quantum dots includes: preparing a mixture containing an organic compound and a boron compound, the organic compound having a reactive group and not containing a boron atom; and to preparing carbon quantum dots by heating the mixture with substantially no solvent in the presence of an alkali metal and/or an alkaline earth metal. An amount of nitrogen atoms contained in the organic compound is within a predetermined range, an amount of the boron compound is within a predetermined range, and a total amount of the alkali metal and the alkaline earth metal is within a specific range.
This method for producing a cyclic silane compound includes: a first step for obtaining a reaction liquid that contains a chain polysilane compound by polymerizing a silane compound in a mixture that contains sodium metal and an aromatic hydrocarbon solvent; and a second step for obtaining a cyclic silane compound by subjecting the reaction liquid to a decomposition reaction of the chain polysilane compound in a solution that is obtained by mixing a polycyclic aromatic hydrocarbon or a polyphenyl hydrocarbon with tetrahydrofuran.
C07F 7/21 - Cyclic compounds having at least one ring containing silicon but no carbon in the ring
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
This method for producing a cyclic silane compound comprises a step for obtaining a cyclic silane compound by subjecting a chain polysilane compound that has a repeating unit represented by formula (1) to a decomposition reaction in a solution that contains sodium metal and a lithium salt. In this method for producing a cyclic silane compound, the chain polysilane compound is not completely dissolved in 1-chloronaphthalene at a temperature of 240°C or less. (In the formula, R1and R2 each independently represent a hydrogen atom or a hydrocarbon group.)
C07F 7/21 - Cyclic compounds having at least one ring containing silicon but no carbon in the ring
C07F 7/08 - Compounds having one or more C—Si linkages
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
4.
ADHESIVE COMPOSITION, ELECTRODE MIXTURE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Provided is a binder composition in which viscosity increases of an electrode mixture slurry is prevented or reduced while a high peel strength between a current collector and an electrode mixture layer is maintained.
This cyclic silane compound production method comprises: a first step for obtaining a reaction liquid containing a linear polysilane compound by polymerizing a silane compound in a mixture containing metallic sodium and an aromatic hydrocarbon-based solvent; and a second step for obtaining a cyclic silane compound by causing the reaction liquid to degrade the linear polysilane compound in a solution having mixed therein tetrahydrofuran and a lithium salt.
C07F 7/21 - Cyclic compounds having at least one ring containing silicon but no carbon in the ring
C07F 7/08 - Compounds having one or more C—Si linkages
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
6.
TRANSPARENT CONDUCTIVE PIEZOELECTRIC FILM, TOUCH SCREEN, AND PRODUCTION METHOD FOR TRANSPARENT CONDUCTIVE PIEZOELECTRIC FILM
It is an object to provide a conductive piezoelectric film having excellent transparency. The transparent conductive piezoelectric film (11) according to the present invention has a transmittance at a wavelength of 450 nm of 75% or greater, a transmittance at a wavelength of 550 nm of 85% or greater, and a piezoelectric constant d33 of 5 pC/N to 40 pC/N, and includes a transparent electrode layer (4).
Provided is a transparent conductive piezoelectric film having transparency. The transparent conductive piezoelectric film according to the present invention includes a transparent electrode layer, and has a piezoelectric constant d31 of 10 pC/N to 40 pC/N and a total transmittance of 90% or greater.
H10N 30/045 - Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
H10N 30/06 - Forming electrodes or interconnections, e.g. leads or terminals
The present invention provides: a masterbatch from which a foam molded body excellent in shrinkage resistance can be obtained; and a foam molded body of the masterbatch. The present invention uses the masterbatch, which contains thermally-foamable microspheres (A), a base resin (B), and an antioxidant (C). The content of the antioxidant (C) is 0.2-4 parts by mass with respect to a total of 100 parts by mass of the thermally-foamable microspheres (A) and the base resin (B). The base resin (B) is preferably a polyethylene resin. The antioxidant (C) is preferably a phenolic compound containing a hindered phenol compound or a phosphite compound.
C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams
B24B 37/00 - Lapping machines or devicesAccessories
B24B 37/12 - Lapping plates for working plane surfaces
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
This method for polishing an object to be polished includes a step for polishing the object to be polished by sliding a polishing pad having a polishing layer containing a composition including a hydrolyzable resin and abrasive grains relative to the object to be polished. The step for polishing the object to be polished includes: a first step for polishing the object to be polished while supplying a first polishing liquid containing a hydrolysis promoter for promoting hydrolysis onto the surface of the polishing layer; and a second step, after the first step, for polishing the object to be polished while supplying a second polishing liquid having a lower concentration of the hydrolysis promoter than the first polishing liquid onto the surface of the polishing layer.
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
B24B 37/00 - Lapping machines or devicesAccessories
A polishing pad according to the present invention comprises a polishing layer. The polishing layer includes a composition that contains a glycolic acid polymer and abrasive grains.
B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
B24B 37/00 - Lapping machines or devicesAccessories
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
A polishing pad according to the present invention is provided with a polishing layer containing a composition that contains a hydrolyzable resin and abrasive grains having a median diameter of less than 2 μm.
B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
B24B 37/00 - Lapping machines or devicesAccessories
B24B 37/12 - Lapping plates for working plane surfaces
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
A polishing pad according to the present invention includes a polishing layer. The polishing layer includes a composition containing a hydrolyzable resin and abrasive grains. The thickness reduction rate when a molded body of the composition excluding the abrasive grains is immersed in water at 60°C is 12 μm/h or greater.
B24D 11/00 - Constructional features of flexible abrasive materialsSpecial features in the manufacture of such materials
B24B 37/00 - Lapping machines or devicesAccessories
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
A technique capable of suppressing reduction in thickness of a downhole tool or a component thereof in a well at a high temperature, and a resin composition including: 50 parts by mass or more and 97 parts by mass or less of polyglycolic acid; 3 parts by mass or more and 50 parts by mass or less of polybutylene terephthalate; and 2 parts by mass or more and 15 parts by mass or less of a cyclic carbodiimide compound with respect to 100 parts by mass of a total amount of the polyglycolic acid and the polybutylene terephthalate.
ORGANIC BINDER, COMPOSITION FOR PRODUCING INORGANIC MATERIAL MOLDED ARTICLE, GREEN BODY, DEGREASED BODY, INORGANIC MATERIAL MOLDED ARTICLE, AND METHOD OF PRODUCING INORGANIC MATERIAL MOLDED ARTICLE
Provided is a binder that gives a green body with reduced brittleness and less susceptibility to fracture. An organic binder according to one aspect of the present invention is an organic binder to be used for molding a sinterable inorganic powder. The organic binder contains poly(glycolic acid) as a binder component.
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
Provided is a medical film having particles containing polyglycolic acid, the particles demonstrating good dispersibility and suppressed aggregation. This medical film comprises: a crosslinked polymer material; and a PGA dispersoid, which is particles, or an aggregate thereof, containing a polymer in which the proportion of a structural unit derived from glycolic acid is 40 mass% or more. The content of the PGA dispersoid is 2 parts by weight to 40 parts by weight with respect to 100 parts by weight of the crosslinked polymer material. The coefficient of variation CV of the number of particles included in a rectangular region is 0.6 or less, as calculated from the number of particles measured in each of rectangular regions which have a size of 5 mm × 4 mm and which are located at 16 positions set on the surface of the medical film so as not to overlap with each other.
A61L 27/48 - Composite materials, i.e. layered or containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with macromolecular fillers
A61L 27/58 - Materials at least partially resorbable by the body
Provided is a medical film capable of showing enhanced re-attachability even without forming a layer for controlling solubility. In the medical film of the present invention, the ratio q1 (V1/V0) of the volume V1 after immersion for 10 seconds in a phosphate buffer (PB) of pH 6.0 and concentration 0.2 M to the volume V0 before the immersion is not more than 1.5.
Disclosed is technology for detecting a touch position and a pressing force at substantially the same time with high sensitivity. An input device according to one aspect of the present invention includes a touch sensor and a control unit. The touch sensor includes a piezoelectric film, a first detection conductor that faces the piezoelectric film and is made up of divided electrodes having a plurality of electrode portions that are electrically insulated from each other, and a second detection conductor that faces the first detection conductor and is disposed on an opposite side from the first detection conductor with the piezoelectric film interposed therebetween. The control unit separates a signal detected at the first detection conductor with the second detection conductor as a reference potential into a first signal in a commercial power supply frequency band and a second signal in a frequency band other than the commercial power supply frequency band, detects a touch position using the first signal, and detects a pressing force using the second signal. Also, an input device according to one aspect of the present invention includes a touch sensor and a control unit. The touch sensor includes a piezoelectric film, a first detection conductor that faces the piezoelectric film and includes a plurality of first electrodes disposed linearly along a first straight line and a plurality of second electrodes disposed linearly along a second straight line, the plurality of first electrodes and the plurality of second electrodes being electrically insulated from each other, and a second detection conductor that faces the first detection conductor, and is disposed on an opposite side from the first detection conductor with the piezoelectric film interposed therebetween. The control unit separates a signal detected at the first detection conductor with the second detection conductor as a reference potential into a first signal of a commercial power supply frequency band and a second signal of a frequency band other than the commercial power supply frequency band, detects a touch position using the first signal, and detects a pressing force using the second signal.
The present invention discloses a touch sensor which is low in manufacturing cost and is driven with low power consumption. A touch sensor according to an aspect of the present invention is provided with: a first detection conductor that is composed of divided electrodes having a plurality of electrode portions that are electrically insulated from each other; a second detection conductor that is insulated from the first detection conductor or is connected to the first detection conductor in high impedance with a resistance of 10 kΩ or more; and a control unit that extracts a signal in a commercial power supply frequency band from a signal detected from the first detection conductor using the second detection conductor as a reference potential, and detects a touch position by using the signal in the commercial power supply frequency band.
This multilayer piezoelectric body has a total light transmittance of 80% or more and includes: a piezoelectric film containing a fluorine-based resin as a main component; a transparent conductive layer having a surface resistivity of 1.0×104 Ω/sq. or less; and one or more coating layers disposed between the piezoelectric film and the transparent conductive layer and having a thickness of 0.05 μm or more. Each of the one or more coating layers has a refractive index higher than the refractive index of the piezoelectric film and lower than the refractive index of the transparent conductive layer, and at least one of the one or more coating layers has a thickness variation coefficient of 0.05 or less.
3333 of 7 to 40 pC/N, a charge dispersion layer that is disposed on at least one surface of the piezoelectric film and has a surface resistivity of 1.0×104to 1.0×1012 Ω/sq, a transparent electrode, and a transparent adhesive layer disposed between the transparent electrode and the charge dispersion layer. The total light transmittance of the laminated piezoelectric body is 80% or greater.
Disclosed is a multilayer piezoelectric body which comprises: a piezoelectric film that contains a fluorine-based resin as a main component; an antistatic layer that is disposed on at least one surface of the piezoelectric film and has a thickness of 10 nm to 250 nm (inclusive); and a hard coating layer that is disposed on the antistatic layer and has a maximum height Rz of the surface of 40 nm to 150 nm (inclusive). The surface resistivity of the multilayer piezoelectric body as measured on the hard coating layer is 1.0 × 106Ω/sq. to 1.0 × 10123333 is 7 pC/N to 40 pC/N (inclusive).
G02B 1/14 - Protective coatings, e.g. hard coatings
G02B 1/16 - Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
H10N 30/045 - Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
H10N 30/077 - Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by depositing piezoelectric or electrostrictive layers, e.g. aerosol or screen printing by liquid phase deposition
H10N 30/097 - Forming inorganic materials by sintering
The present invention addresses the problem of providing a current collector in which cracking etc. of a mixture layer is unlikely to occur during production of an electrode. This current collector solves the aforementioned problem and has a metal-containing base material and a coat layer disposed on at least one surface of the base materia. The coat layer contains an electroconductive auxiliary agent, a vinylidene fluoride copolymer, and a dispersant. The vinylidene fluoride copolymer contains: a structural unit derived from vinylidene fluoride and a structural unit derived from a compound having a carboxy group. The amount of the electroconductive auxiliary agent is 45 mass% to 80 mass% with respect to the total mass of the coat layer.
Provided is a molded body which retains tensile strength and has an improved thickness reduction rate after a reduction of 5 mm or more from the initial thickness. This molded body comprises a glycolic acid polymer, a cyclic ester, a basic metal oxide, and a carboxylic acid anhydride, wherein the content of the cyclic ester is 21 parts by mass or less when the total mass of the glycolic acid polymer, the cyclic ester, the basic metal oxide, and the carboxylic acid anhydride is taken as 100 parts by mass, and the basic metal oxide has a shortest interparticle distance of 9.1 μm or less.
Provided is a probe case that decomposes readily and that has excellent mechanical strength. A case (10) for a probe that is dropped from the air toward a ground surface or a water surface is configured from a tip end portion (12) and a body portion (11), wherein at least one of the tip end portion (12) and the body portion (11) is formed from polyglycolic acid or a decomposable metal.
C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
B64U 101/35 - UAVs specially adapted for particular uses or applications for science, e.g. meteorology
26.
BINDER FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE MIXTURE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
An object of the present application is to provide a binder for a non-aqueous electrolyte secondary battery having high adhesiveness to an active material and/or a current collector and also having high flexibility capable of withstanding bending in an electrode having a highly densified mixture layer. A binder for a non-aqueous electrolyte secondary battery, which achieves the object, contains: a vinylidene fluoride polymer having a vinylidene fluoride-derived structural unit as a main constituent component; and an additive having a specific structure, and a mass ratio of the vinylidene fluoride polymer to the additive is from 99/1 to 60/40:
Provided is a downhole plug device that is less likely to hinder other operations after being removed, a fixing method of a tubular body, and an inspection method of a tubular body. In a downhole plug device, a plug that seals one end of a housing having a cylindrical shape is fixed to the housing by a bolt that penetrates through the plug. The downhole plug device is connected to a tip of a tubular body inserted into a casing in a well and is used for a method of inspecting presence or absence of leakage of fluid from the tubular body in the well.
A vinylidene fluoride copolymer composition having stable dispersibility in a dispersion medium over a long period of time, the composition having a melting temperature of 140° C. or lower, a reversing heat flow of the composition has endothermic peaks having an amount of enthalpy of fusion of 2 J/g or more, and an absolute value of a difference between a temperature showing a largest endothermic peak among the endothermic peaks and the melting temperature of the composition is 10° C. or lower. When a dispersion containing butyl butyrate and the vinylidene fluoride copolymer composition (vinylidene fluoride content rate of 10 mass %) is left to stand for 20 hours, a content rate of the vinylidene fluoride copolymer composition in an upper 20 vol % of the dispersion after the dispersion is left to stand is 4.0 mass % or more and 10 mass % or less.
Provided is a method for manufacturing a vinylidene fluoride copolymer that can suppress the adhesion of polymers inside a reaction vessel during manufacture and that can manufacture the vinylidene fluoride copolymer with high productivity. This method for manufacturing a vinylidene fluoride copolymer contains structural units derived from vinylidene fluoride and structural units derived from a compound indicated by formula (1) and has a step for suspending polymerization of monomers containing vinylidene fluoride and the compound represented by formula (1) in the presence of a suspending agent, wherein the step for suspending polymerization includes: performing the polymerization reaction at a polymerization temperature that is at the critical temperature of the vinylidene fluoride or higher and below the gelation temperature of the suspending agent; and adding a portion of the total amounts to be added for each of the vinylidene fluoride and the compound represented by formula (1) to the reaction system before the start of polymerization, heating the reaction system to the polymerization temperature, and then adding the remainder of the total amounts to be added for each of these compounds to the reaction system either continuously or intermittently.
To provide a monofilament of PA4, which has a low density. The monofilament of polyamide 4 in an embodiment of the present invention has a density of 1.230 g/cm3 or less. A method for producing a monofilament of polyamide 4 according to an embodiment of the present invention includes: melt-extruding polyamide 4; and cooling a melted and extruded matter of the polyamide 4 obtained by the melt-extruding process, at −10° ° C. or lower by using a nonpolar solvent.
To provide a monofilament of polyamide 4 (PA4) having high tensile characteristics even when the monofilament is knotted. A monofilament of PA4, in a scattering vector in a range of 0.02 nm−1 or greater and 0.04 nm−1 or less measured by small-angle X-ray scattering, the monofilament having an average value of a ratio I2/I1 of a normalized scattering intensity I2 in an equatorial direction to a normalized scattering intensity I1 in a meridian direction of 5 or less. A birefringence of the monofilament is 50×10−3 or greater.
Provided are: a binder that contains a novel vinylidene fluoride copolymer that achieves superior adhesiveness with respect to a metal foil when an electrode is formed; an electrode mixture that contains said binder; an electrode that employs said electrode mixture; a battery that includes said electrode; and a manufacturing method for said binder. A binder containing a vinylidene fluoride copolymer (A) that contains, in the principal chain, a structural unit (a1) derived from a vinylidene fluoride and a structural unit (a2) having a cyclic acid anhydride structure is employed. In the binder, it is preferable that the structural unit (a2) having a cyclic acid anhydride structure be a structural unit represented by formula (1) or formula (2). (In formulas (1) and (2), each of R1 and R2 independently represents a hydrogen atom, a halogen atom, or an alkyl group that has 1-5 carbon atoms. X represents an alkylene group that may have a substituent and that has 1-5 carbon atoms.)
Provided are: a novel vinylidene fluoride copolymer which, when used for forming an electrode, exhibits excellent adhesiveness to a metal foil; a binder including the copolymer; an electrode mix including the binder; an electrode obtained using the electrode mix; and a battery equipped with the electrode. The copolymer contains a structural unit (a1) derived from vinylidene fluoride. A powder of the copolymer, when examined, gives an FT-IR spectrum having absorption peaks in the ranges of 1,780-1,800 cm-1and 1,850-1,870 cm-1, respectively. A powder of the copolymer, when examined, gives a 19F-NMR spectrum having at least two peaks in the range of -91.0 to -89.0 ppm.
A vinylidene fluoride copolymer composition having stable dispersibility in a dispersion medium over a long period of time, the composition having a melting temperature of 140° C. or lower, a reversing heat flow of the composition has endothermic peaks having an amount of enthalpy of fusion of 2 J/g or more, and an absolute value of a difference between a temperature showing a largest endothermic peak among the endothermic peaks and the melting temperature of the composition is 10° C. or lower. When a dispersion containing butyl butyrate and the vinylidene fluoride copolymer composition (vinylidene fluoride content rate of 10 mass %) is left to stand for 20 hours, a content rate of the vinylidene fluoride copolymer composition in an upper 20 vol % of the dispersion after the dispersion is left to stand is 4.0 mass % or more and 10 mass % or less.
Provided is a piezoelectric laminated film which does not discolor even under a high-temperature and high-humidity environment. The piezoelectric laminated film includes a piezoelectric film and a transparent adhesive sheet satisfying the following Condition 1. Condition 1: when volatile components obtained from a test piece per 1 cm2 that has been held at 85° C. for 90 minutes are subjected to solid-phase microextraction, adsorbed onto a fiber coated with polydimethylsiloxane, and analyzed by a gas chromatography mass spectrometer, a total amount of organic substances detected after a retention time of 3 minutes is 50 μg or less in terms of weight of 2,2′-azobis(isobutyronitrile).
H10N 30/073 - Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies by fusion of metals or by adhesives
A direction from a front plate (21) to a rear plate (22) of a wound body accommodation box is a width direction (DW). A direction from an opening to a bottom plate (25) is a height direction (DH). A direction from one side plate to the other side plate is a length direction (DL). The center in both the width direction (DW) and the height direction (DH) of a right side plate (23) is a right reference position (23B). In the wound body accommodation box, a rear part (20B) is on the rear plate (22) side of the right reference position (23B) in the width direction (DW). In the rear part (20B), the minimum value of an inside dimension (LA) in the length direction (DL) between the side plates in a portion on the bottom plate (25) side in the height direction (DH) of the right reference position (23B) is smaller than an inside dimension (LA) in the length direction (DL) between the side plates in a portion on the opening side in the height direction (DH) of the right reference position (23B).
Provided is a transparent conductive piezoelectric laminate film that achieves high transparency and low resistance. The present invention relates to a transparent conductive piezoelectric laminate film, wherein a piezoelectric film, a first conductor layer, a metal layer, and a second conductor layer are layered in this order, and the metal layer contains silver or a silver alloy.
Provided is a transparent conductive piezoelectric laminate film that achieves high transparency and low resistance. The present invention relates to a transparent conductive piezoelectric laminate film including a piezoelectric film, and a conductor layer layered on at least one surface of the piezoelectric film. The transparent conductive piezoelectric laminate film has a diffraction peak in each of a range of 21°±2° and a range of 31°±2° in X-ray diffraction measurement, and a haze value of 2.0% or less.
To realize a method for producing glycolide that suppresses generation of by-products while productivity of glycolide is improved. A method for producing glycolide, the method including: a first step of preparing a depolymerization reaction solution containing a glycolic acid oligomer and a titanium catalyst selected from the group consisting of organic titanium catalysts and inorganic titanium catalysts, and a second step of producing glycolide by depolymerization of the glycolic acid oligomer, a content of titanium element derived from the titanium catalyst in the depolymerization reaction solution being 1.2 mmol/L or less.
To provide a method for producing carbon quantum dots having high emission quantum yield through simple processes. A method for producing carbon quantum dots that solves the difficulty described above includes: preparing a mixture by mixing a crystalline compound containing boron, sulfur, or phosphorus, being solid at 1 atm and 25° C., and having crystallinity, and an organic compound having a reactive group; and preparing carbon quantum dots by heating the mixture at 100° C. or higher and 300° C. or lower substantially in the absence of a solvent. An amount of the crystalline compound in the mixture is 45 parts by mass or greater and 1000 parts by mass or less with respect to 100 parts by mass of the organic compound.
(1) Bridge plugs, frac plugs, packers and ball sealers used in an oil and gas wellbore; rock drilling machines for downhole, and their parts and fittings; machines for mining and excavating raw materials and their parts and fittings.
Oil field equipment, namely, drilling rig mechanization devices in the nature of bridge plugs, frac plugs, packers and ball sealers used in an oil and gas wellbore; rock drilling machines for downhole, and their parts and fittings, namely, bridge plugs, frac plugs, packers and ball sealers that are used in an oil and gas wellbore; mining machines and apparatus and their parts and fittings, namely, bridge plugs, frac plugs, packers and ball sealers that are used in an oil and gas wellbore
43.
MOLDED BODY, DOWNHOLE TOOL MEMBER, AND DOWNHOLE TOOL
The molded body according to an embodiment of the present invention includes a composition containing a glycolic acid polymer, a plasticizer, and a degradation accelerator. An absolute value of a difference between a Fedors solubility parameter of the plasticizer and a Fedors solubility parameter of the glycolic acid polymer is 6 (J/cm3)1/2 or less. A content of the plasticizer in the composition is 10 mass % or greater and 50 mass % or less.
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY (Japan)
Inventor
Koshiyama, Tatsuyuki
Higashiyama, Yukihiro
Sato, Shun
Morita, Tomotake
Saika, Azusa
Wada, Keisuke
Ushimaru, Kazunori
Abstract
The microorganism of the present disclosure is a microorganism belonging to Dirkmeia churashimaensis (accession number: NITE BP-03707, accession number: NITE BP-03708, accession number: NITE BP-03709, accession number: NITE BP-03711, or accession number: NITE BP-03712), Aureobasidium melanogenum (assignment number: NITE BP-03706), or a microorganism belonging to a species (Ustilago sp.) closely related to Ustilago sporoboli-indici (accession number: NITE BP-03710).
Provided is a method for producing solid-state carbon quantum dots having high emission quantum yield through simple processes. To solve the above issue, a method for producing carbon quantum dots is a method for producing the carbon quantum dots which are solid at 25° C.under 1 atm, the method including: preparing a mixture by mixing an organic compound and a boron compound, the organic compound having a reactive group and not containing a boron atom; and preparing carbon quantum dots by heating the mixture with substantially no solvent at 100° C.or higher and 300° C.or lower. An amount of a nitrogen atom in the organic compound is 20 mass % or greater, and an amount of the boron compound with respect to a total amount of the organic compound and the boron compound is 20 mass % or greater.
To provide a glycolic acid copolymer composition that can be solidification- and extrusion-molded and that improves rate of decrease in thickness of the molded article during degradation. The glycolic acid copolymer composition according to an embodiment of the present invention includes a glycolic acid copolymer and a carboxylic anhydride, the glycolic acid copolymer including two or more straight macromolecular chains A, each containing a repeating unit derived from glycolic acid and being chemically bonded to a particular macromolecular chain B that is different from the macromolecular chain A, and a weight average molecular weight of the composition is 150000 or greater.
C08G 63/664 - Polyesters containing oxygen in the form of ether groups derived from hydroxycarboxylic acids
C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
A conductive piezoelectric multi-layer film having high transparency is achieved. A conductive piezoelectric multi-layer film is configured such that a first coating layer having a refractive index of 1.45 or greater and less than 1.60, a second coating layer having a refractive index of 1.60 or greater and less than 1.80, and a conductive layer having a refractive index of 1.80 or greater and 2.20 or less are stacked in this order on at least one surface of a piezoelectric film having a refractive index of 1.30 or greater and 1.50 or less.
H10N 30/50 - Piezoelectric or electrostrictive devices having a stacked or multilayer structure
H10N 30/057 - Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes by stacking bulk piezoelectric or electrostrictive bodies and electrodes
H10N 30/067 - Forming single-layered electrodes of multilayered piezoelectric or electrostrictive parts
H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals
48.
METHOD FOR PRODUCING POLYCARBOSILANE FOR SILICON CARBIDE FIBERS, AND METHOD FOR PRODUCING SILICON CARBIDE FIBERS
Provided is a method for producing polycarbosilane (PCS) for silicon carbide fibers that produces PCS in a few steps to improve the yield of PCS. The present invention is a method that produces PCS for silicon carbide fibers without including a step that adjusts the molecular weight of the PCS, wherein the method includes (a) a step that heats and gasifies a composition containing a cyclic silane compound in a liquid-phase reactor 1, (b) a step that heats the gaseous composition obtained by step (a) to generate PCS, and (c) a step that returns the PCS generated by step (b) to the liquid-phase reactor 1 and cools and returns the gaseous components to the liquid-phase reactor 1, and each of these steps is repeated to produce PCS in which the number average molecular weight (Mn) is from 1250 to less than 6000 and the ratio (Mw/Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) is from 4.5 to 20.0.
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
D01F 9/10 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material by decomposition of organic substances
49.
POLYCARBOSILANE FOR SILICON CARBIDE FIBERS, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING SILICON CARBIDE FIBERS
To provide a fiber material suited to a method for producing silicon carbide fibers endowed with excellent mechanical properties. The polycarbosilane for silicon carbide fibers according to the present invention is a reaction product of a composition that contains a cyclic silane compound and has a weight average molecular weight (Mw) of from 10,000 to 16,000, a number average molecular weight (Mn) of from 1500 to less than 6000, and a ratio (Mw/Mn) of the weight average molecular weight (Mw) and number average molecular weight (Mn) of from 2.0 to less than 4.5. The method for producing a polycarbosilane for silicon carbide fibers according to the present invention synthesizes a polycarbosilane using a composition that contains a cyclic silane compound and subjects the reaction product to molecular weight adjustment treatment.
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
D01F 9/10 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material by decomposition of organic substances
Provided is a method for producing an azole derivative with less amount of a by-product. A method for producing an azole derivative represented by general formula (I) includes reacting an oxirane derivative with 4-amino-1,2,4-triazole under an acidic condition and deaminating the obtained compound to form the azole derivative represented by general formula (I), where R1 is a C1-C6-alkyl group or the like; X1 and X2 are each independently a halogen group or the like; and n is 1, 2, or 3.
Provided is a method for producing an azole derivative with less amount of a by-product. A method for producing an azole derivative represented by general formula (I) includes reacting an oxirane derivative with 4-amino-1,2,4-triazole under an acidic condition and deaminating the obtained compound to form the azole derivative represented by general formula (I), where R1 is a C1-C6-alkyl group or the like; X1 and X2 are each independently a halogen group or the like; and n is 1, 2, or 3.
Provided are a binder solution, an electrode mixture, an electrode, and an all-solid-state battery, which use an organic solvent having low reactivity with a solid electrolyte and in which a binder easily dissolves. The binder solution for an all-solid-state battery contains: a binder made of a vinylidene fluoride polymer; and an organic solvent. The organic solvent is at least one selected from the group consisting of a cyclic ether, a ketone, and an ester. The organic solvent has a boiling point of 60° C. or higher and 160° C. or lower. A residual moisture content of the organic solvent is 300 ppm or less.
Provided is a nylon filament for a fishery material. The filament for a fishery material is biodegradable, has sufficient knot strength in water, and does not readily produce filaments of broken-down monomers when melted. The filament for a fishery material has a filament that includes a nylon resin that has structural units represented by formula (1) and other nylon structural units. The structural units represented by formula (1) are at least 1 mol% but less than 40 mol% of all the structural units of the nylon resin. (In formula (1), x is an integer from 1 to 3.)
The present invention provides a polyamide resin which is a copolymer of a biodegradable polyamide such as polyamide 2 to polyamide 4, and another polyamide, and which has further enhanced biodegradability. This polyamide resin comprises a structural unit represented by formula (1) and another polyamide structural unit; and the difference between the degree of randomness in the case where it is assumed that the structural units are in an ideal random arrangement as determined by the proportions of the structural units obtained by 1H-NMR analysis and the degree of randomness obtained from the ratio of carbonyl carbon atoms of amide groups that connect different structural unit to each other to the integral value of all peaks of the carbonyl carbon atoms as obtained by 13C-NMR analysis is 0.10 or less. (In formula (1), x is an integer of 1 to 3.)
The purpose of the prevent invention is to provide a protective net for scouring prevention, the protective net having a low environmental burden, being biodegradable, and having strength that can be maintained over a long period. A protective net for scouring prevention that solves said problem has a net material composed of monofilaments or multifilaments. The net material includes at least 60 mass% of a biodegradable resin (A) that has a melting point of at least 180°C and has biodegradation of at least 60% when subjected to a biodegradation test in compliance with ISO 19679:2016 for at least 30 days and at most 180 days or has biodegradation of at least 60% when subjected to a specific marine biodegradation acceleration test for at least 30 days and at most 180 days, wherein the knot-pull strength after the net material has been immersed in seawater at 25°C for 90 days is at least 200 MPa, and the tensile load capacity of the net material is at least 3,000 N.
The purpose of the present invention is to provide a current collector in which cracking etc. of a mixture layer is unlikely to occur during production of an electrode. A current collector which solves the above problem comprises a substrate that includes a metal and a coat layer that is disposed on at least one surface of the substrate, wherein the coat layer includes a conductivity aid and a vinylidene fluoride polymer A which includes a vinylidene-fluoride-derived structural unit and a structural unit derived from a compound having a specific structure.
A plant environmental stress tolerance improvement agent including, as an active substance, a compound that is represented by the following formula (I), a tautomer thereof, or an agriculturally acceptable salt of either of these. (In formula (I), R1and R2each independently represent a hydrogen atom or a C1-4 alkyl group, and R3-R5 each independently represent a C1-4 alkyl group.)
Provided are nylon fibers which can be spun without wet-spinning and are biodegradable fibers which are to be used in a woven fabric, a knit fabric, a braided article or a non-woven fabric and suppress a decline in strength caused by laundering while being biodegradable. Biodegradable fibers which are to be used in a woven fabric, a knit fabric, a braided article or a non-woven fabric and contain a nylon resin which has a structural unit represented by formula (1) and another nylon structural unit, wherein the proportion of the structural unit represented by formula (1) relative to all structural units of the nylon resin is at least 1 mol% and less than 40 mol%. (In formula (1), x is an integer of 1-3, inclusive.)
Provided are biodegradable fine particles that are for cosmetics, that are biodegradable, and that have excellent smoothness and softness required for cosmetics. The biodegradable fine particles are for cosmetics and contain a polyamide resin having a structural unit represented by formula (1) and a structural unit of another polyamide. In the polyamide resin, the proportion of the structural unit represented by formula (1) with respect to all structural units is not less than 1 mol% but less than 40 mol%. (In formula (1), x represents an integer of 1-3.)
Provided are: a vinylidene-chloride-based resin reduced in environmental burden; a wrap, a casing, a latex, and a binder each including the resin; and a method for producing the resin. The present invention relates to a vinylidene-chloride-based resin having the allocated property of being derived from renewable organic resources.
This invention addresses the problem of providing rubber-bonded cellulose fibers and the like with which viscosity and melt viscosity do not easily increase when said fibers are added to various types of resins. Rubber-bonded cellulose fibers which solve said problem include cellulose fibers, a plurality of rubber particles having an average particle size of 300 nm or less disposed on the surfaces of the cellulose fibers, and a silane compound that bonds the cellulose fibers and the rubber particles.
To provide a method that produces hydrophobically modified cellulose fibers efficiently using little hydrophobic modifier. The method for producing cellulose fibers that solves this problem comprises: a step that mixes cellulose fibers, a base, and water and prepares an aqueous solution having a concentration of cellulose fibers of from 0.5 mass% to 50 mass% and a concentration of base of from 1 mass% to 10 mass%; a step that adds from 0.2 equivalent to 10 equivalents of a cyclic amide compound relative to the anhydrous glucose units contained in the cellulose fibers to the aqueous solution and reacts the cellulose fibers with the cyclic amide compound; and a step that further adds an acid to the aqueous solution and neutralizes the base.
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
A method for producing an electrode member that configures an electrode body of an all-solid-state battery, including: a slurry preparation step for preparing a mixed material slurry that contains at least a binder, solid electrolyte particles, and a nonaqueous solvent with low polarity; a molding step for molding the mixed material slurry into a desired shape; and a drying step for obtaining a molded body by removing the nonaqueous solvent with low polarity from the mixed material slurry after the molding. Then, the temperature of the mixed material slurry is controlled so as not to cause re-crystallization of the binder, which has been dissolved in the nonaqueous solvent with low polarity, at least until the initiation of the molding step. Consequently, it is possible to stably provide an all-solid-state battery that has low battery resistance, while improving electrode member production efficiency by preventing gelation of a mixed material slurry.
The plant growth regulator according to an embodiment of the present invention contains an extract of an ergothioneine-producing microorganism as an active ingredient. The extract contains ergothioneine.
Provided is a molded product having small anisotropy of strength in a MD direction and a TD direction and a processed article thereof. A molded product (10) includes a glycolic acid polymer and a plurality of fibers (11). The fibers (11) include the fibers oriented in the MD direction and the fibers oriented in a direction along a tangent line to concentric circles in a cross-section orthogonal to the MD direction at a specific ratio.
Provided are: a positive electrode active material layer capable of forming a positive electrode exhibiting excellent adhesive property between the positive electrode active material layer and a current collector; an electrode provided with said positive electrode active material layer; and a semi-solid-state battery or an all-solid-state battery provided with said electrode. The present invention uses a positive electrode active material layer which contains a positive electrode active material (A), a solid electrolyte (B), and a binder (C). The binder (C) is a vinylidene fluoride copolymer including a constituent unit (C-a) derived from vinylidene fluoride and a constituent unit (C-b) derived from a monomer other than vinylidene fluoride. The constituent unit (C-b) derived from a monomer other than vinylidene fluoride includes a constituent unit derived from at least one selected from unsaturated dibasic acids, unsaturated dibasic acid monoesters, and compounds represented by formula (C-1). The constituent unit (C-a) derived from vinylidene fluoride is contained in an amount of 90.0 mass% or more with respect to 100.0 mass% of the total constituent units included in the vinylidene fluoride copolymer. [Chem. 1] (In formula (C-1), R1, R2, and R3each independently represent a hydrogen atom, a chlorine atom, or an alkyl group having 1-5 carbon atoms, and X1 represents an atomic group having a molecular weight of 472 or less and having a main chain composed of 1-19 atoms, and includes at least one heteroatom selected from an oxygen atom and a nitrogen atom.)
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Provided are: a degradable rubber composition which has sealing performance required of rubber members of sealing members and which after having been exposed to a fluid, e.g., water, over a given time period, can break into pieces even without receiving external stress and is thereby made easily removable; a rubber member; a sealing member; and a method for producing the degradable rubber composition. The degradable rubber composition comprises a degradable rubber component including a millable rubber material composed of hydrolyzable rubber molecules and an acidic hydrolysis accelerator which is a powder that becomes acidic upon contact with water and which accelerates the hydrolysis of the rubber molecules upon contact with water. The acidic hydrolysis accelerator is contained in an amount of 40 parts by mass or more per 100 parts by mass of the degradable rubber component.
The present invention provides: a degradable rubber composition with which it is possible to control the time until degradation starts after the composition is immersed in a fluid such as water; a rubber member; a sealing member; and a method for producing the degradable rubber composition. This degradable rubber composition contains: a degradable rubber component that includes a hydrolyzable rubber molecule; a hydrolysis accelerator that accelerates hydrolysis of the rubber molecule upon contact with water; and a hydrolysis inhibitor that inhibits hydrolysis of the rubber molecule. The hydrolysis accelerator contains an acidic hydrolysis accelerator that is a powder that exhibits acidity upon contact with water. The acidic hydrolysis accelerator is contained at a quantity of 40 parts by mass or more relative to 100 parts by mass of the degradable rubber component.
Provided are: a positive electrode active material layer capable of forming an all-solid-state battery having excellent cycle characteristics; an electrode comprising said positive electrode active material layer; and a semi-solid-state or all-solid-state battery comprising said electrode. The positive electrode active material layer contains a positive electrode active material (A), a solid electrolyte (B), and a binder (C), wherein the binder (C) contains a vinylidene fluoride copolymer which is a copolymer of vinylidene fluoride and hexafluoropropylene, or a copolymer of vinylidene fluoride and chlorotrifluoroethylene, and the vinylidene fluoride copolymer contains 83.0-97.0 mass% of a constituent unit derived from vinylidene fluoride on the basis of 100 mass% of the total constituent units.
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Provided are: a positive electrode active material layer capable of forming a positive electrode in which interface resistance between a current collector and an electrode active material is suppressed; an electrode provided with said positive electrode active material layer; and a semi-solid-state battery or an all-solid-state battery provided with said electrode. The present invention uses a positive electrode active material layer which contains a positive electrode active material (A), a solid electrolyte (B), and a binder (C). The binder (C) is a polymer (C-a) or a polymer (C-b). Polymer (C-a): A homopolymer of vinylidene fluoride, and having an intrinsic viscosity of 3.5 dL/g or less. Polymer (C-b): A vinylidene fluoride copolymer that includes a constituent unit derived from vinylidene fluoride and a constituent unit derived from hexafluoropropylene, that has an intrinsic viscosity of 1.3-4.0 dl/g, and in which the constituent unit derived from hexafluoropropylene is contained in an amount of 8.0 mass% or less with respect to 100.0 mass% of the total constituent units of the vinylidene fluoride copolymer.
H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Provided is a method for producing a triazole derivative enantiomer (R). The method includes: a step for adding, in a solvent, a chiral molecule represented by general formula (IIa) or general formula (IIb) to a triazole derivative represented by general formula (I), and carrying out crystallization; and a step for separating a precipitated crystal and a residual liquid.
A plant growth regulator according to the present disclosure contains: a compound represented by formula (I) or a tautomer thereof, or an agrochemically allowable salt thereof; and one or more components selected from the group consisting of an amino acid, a peptide having an amino acid length of 2-10, inclusive, betaine, an organic acid or a salt thereof, a nucleic acid base, a vitamin, and a sugar or sugar alcohol.
A01G 7/06 - Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
A01N 25/00 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests
A01N 37/02 - Saturated carboxylic acids or thio-analogues thereofDerivatives thereof
A01N 37/36 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio-analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio-analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
A01N 37/44 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio-analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio-analogue of a carboxylic group, e.g. amino-carboxylic acids
A01N 43/36 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
A01N 43/38 - Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
VINYLIDENE FLUORIDE POLYMER COMPOSITION AND METHOD OF PRODUCING SAME, RESIN COMPOSITION, ELECTRODE MIXTURE, AND ELECTRODE CONTAINING THESE, AND METHOD OF PRODUCING SAME
An objective is to provide a vinylidene fluoride polymer composition that is difficult to swell and dissolve in N-methyl-2-pyrrolidone and can form an electrode with a smooth surface. The vinylidene fluoride polymer composition contains a vinylidene fluoride polymer with a melting point of 130° C. or higher. When the vinylidene fluoride polymer composition and N-methyl-2-pyrrolidone are mixed to prepare a vinylidene fluoride polymer dispersion with a content of the vinylidene fluoride polymer of 6 mass %, a ratio of a viscosity of the vinylidene fluoride polymer dispersion at 30° C. to a viscosity of N-methyl-2-pyrrolidone at 30° C. is 20 or less, and when the vinylidene fluoride polymer dispersion is stirred and then allowed to stand for 15 minutes, a rate of change in content of the vinylidene fluoride polymer in an upper 40 volume % area of the vinylidene fluoride polymer dispersion before and after the standing is 2 mass % or less.
The present invention provides a method for producing a polycarbosilane by means of a liquid phase-vapor phase thermal decomposition/condensation process; and this method produces a polycarbosilane for the production of silicon carbide fibers with a smaller number of steps than conventional production methods. A method for producing a polycarbosilane for the production of silicon carbide fibers according to one embodiment of the present invention comprises a polycarbosilane synthesis step for synthesizing a polycarbosilane that has a weight average molecular weight of 9,000 or more, the polycarbosilane synthesis step comprising: a process for producing a vapor phase by heating a starting material that contains a cyclic silane compound at a first temperature; a process for producing a polycarbosilane by heating the vapor phase at a second temperature that is higher than the first temperature; and a process for increasing the molecular weight of the polycarbosilane by cooling the polycarbosilane and returning the cooled polycarbosilane to the starting material so as to have the polycarbosilane heated at the first temperature.
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
D01F 9/10 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material by decomposition of organic substances
76.
POLYCARBOSILANE, METHOD FOR PRODUCING POLYCARBOSILANE, AND METHOD FOR PRODUCING SILICON CARBIDE FIBERS
The polycarbosilane according to this embodiment has a bond index represented by formula (1), which is an indicator of the degree of branching, of 2.63 or more and an oxygen content of 1.15 wt% or less.
C08G 77/60 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which all the silicon atoms are connected by linkages other than oxygen atoms
C01B 32/977 - Preparation from organic compounds containing silicon
D01F 9/10 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments of inorganic material by decomposition of organic substances
77.
TRANSPARENT CONDUCTIVE PIEZOELECTRIC FILM AND TOUCH PANEL
To suppress change in a surface resistance value under a high-temperature or high-humidity environment in a transparent conductive piezoelectric film including a transparent piezoelectric film made of a fluororesin. A transparent conductive piezoelectric film includes a transparent piezoelectric film made of a fluororesin, a transparent coating layer, and a transparent electrode stacked in this order. The total thickness of the coating layer is 0.6 to 4.5 μm. When the transparent conductive piezoelectric film is left to stand in a specific high-temperature environment, the ratio of a resistance value after being left in the environment to a ratio of a resistance value before being left in the environment is 1.30 or less.
To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.
Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
a transparent coating layer having a thickness of 0.20 to 2.5 μm, wherein the transparent coating layer forms an interface with the transparent piezoelectric base film over an entire region overlapping the transparent piezoelectric base film.
Provided is a molded body with an enhanced thinning rate after a reduction of 5 mm or more from an initial thickness, while maintaining tensile strength. The molded body of the present invention is made out of a composition including a glycolic acid polymer, a cyclic ester, and an inorganic filler. The cyclic ester content of the composition is 10-22 mass%, and the inorganic filler content is 0.1-15 mass%. The inorganic filler is selected from the group consisting of aluminum nitride and silicon nitride.
A plug that can maintain isolation also in a high-temperature and low salt concentration fluid or water only for a predetermined period of time is provided. A plug for temporarily preventing circulation of a fluid in a well includes or composed of a resin molded article, the resin molded article being formed from a polyglycolic acid resin composition containing a polyglycolic acid and a cyclic carbodiimide compound and having a carbodiimide group concentration of 15 eq/t or greater.
The present invention provides a conductive piezoelectric film in which variation in transparency is suppressed. The present invention relates to a conductive piezoelectric film comprising a piezoelectric film and a conductive layer that is laminated on one surface of the piezoelectric film, wherein total light transmittance is not less than 80%, the standard deviation of total light transmittance is not more than 1.4%, and the conductive layer includes at least one material selected from the group consisting of metal nanowires, conductive polymers, carbon nanotubes, and graphene.
H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G06F 3/047 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
H01B 5/14 - Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
H10N 30/045 - Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
H10N 30/06 - Forming electrodes or interconnections, e.g. leads or terminals
H10N 30/20 - Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
Provided is a layered piezoelectric film that has high rigidity and excellent thermal stability and smoothness. The layered piezoelectric film comprises a piezoelectric film and a protection film layered on one surface of the piezoelectric film. The rigidity of the protection film is 1.0-20 times the rigidity of the piezoelectric film, and the thickness of the protection film is 50-200 μm.
The present invention provides a multilayer piezoelectric film which has excellent thermal stability, adhesion and transparency. The present invention relates to a multilayer piezoelectric film which comprises a piezoelectric film that contains a fluorine-based resin as a main component and a thermosetting hard coat layer that is superposed on at least one surface of the piezoelectric film, wherein: if this multilayer piezoelectric film is subjected to a heat treatment at 100°C for 30 minutes, the absolute value of the thermal shrinkage ratio is 1.0% or less in both the machine direction (MD) and the transverse direction (TD); the adhesion between the piezoelectric film and the thermosetting hard coat layer is 4B or more as evaluated in accordance with ASTM D3359; and b*in the L*a*b* color system is -0.7 to 0.7.
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
RESIN COMPOSITION, COATING COMPOSITION COMPRISING SAME, ELECTRODE FOR STACKING, SEPARATOR FOR STACKING, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY AND PRODUCTING METHOD THEREFOR
An object is to provide a resin composition excellent in dry adhesion to both a positive electrode and a negative electrode. Provided is a resin composition to solve the above issue, which contains a vinylidene fluoride copolymer containing: 73.7 mass% or more and 96.9 mass% or less of a constituent unit derived from vinylidene fluoride; 0.1 mass% or more and 1.3 mass% or less of a constituent unit containing a carboxy group; and 3 mass% or more and 25 mass% or less of an other constituent unit which does not contain a carboxy group and is derived from a compound copolymerizable with vinylidene fluoride, with the proviso that a total amount of the constituent units constituting the vinylidene fluoride is taken as 100 mass%. A solution obtained by dissolving 4 g of the vinylidene fluoride copolymer in 1 L of N,N-dimethylformamide has an intrinsic viscosity at 30° C. of 0.5 dL/g or more and 3 dL/g or less.
The present invention provides a multilayer film configured from 80 mass% or more of a polyolefin resin, the multilayer film having exceptional mechanical characteristics and thermal shrinkage properties. A thermally shrinkable multilayer film according to the present invention comprising at least three layers, including an outer surface layer (a) containing a polyolefin resin, an intermediate layer (b) containing a gas-barrier resin, and an inner surface layer (c) containing a polyolefin resin, wherein: at least one layer in the multilayer film contains a cyclic olefin copolymer; and the mass ratio of the polyolefin resin to the multilayer film is 80 mass% or greater, and the mass ratio of the cyclic olefin copolymer to the multilayer film is 15 mass% or greater, where 100 mass% represents the total mass of the multilayer film.
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B65D 65/40 - Applications of laminates for particular packaging purposes
87.
BINDER, ELECTRODE MIXTURE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
A binder according to an embodiment of the present invention contains: a vinylidene fluoride polymer containing 50 mol % or greater of vinylidene fluoride units; and an oxime.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
88.
POLY (PHENYLENE SULFIDE) RESIN COMPOSITION AND VIBRATION DAMPING MATERIAL INCLUDING SAME
A poly(phenylene sulfide) resin composition having high loss factors at 50° C. or higher and 100° C. or lower is provided. The poly(phenylene sulfide) resin composition contains poly(p-phenylene sulfide) and poly(m-phenylene sulfide).
An object of the present invention is to provide a method of producing an alkene using a solvent that has little decrease in production rate over time and is easy to recover and recycle.
An object of the present invention is to provide a method of producing an alkene using a solvent that has little decrease in production rate over time and is easy to recover and recycle.
The method of producing an alkene, which solves the problem, includes: a step of contacting a solution containing an alcohol having three or more carbon atoms and a hydroxide of an alkali metal and/or an alkaline earth metal with a halogenated alkane.
The present invention realizes a technique for synthesizing, in a more simple manner, a carbon nanotube (CNT) from a solid carbon starting material. A CNT precursor is produced by bringing metal ions into contact with an oxygen-containing carbonaceous material in which an area ratio O/C of an O-peak to a C-peak in an XPS spectrum is 0.1 to 1.0, and then heating the CNT precursor in a non-oxidizing atmosphere to produce a CNT.
The present invention addresses the problem of providing: a polyvinylidene fluoride resin composition which is not susceptible to a hydrogen fluoride elimination reaction from a vinylidene fluoride polymer during molding, while exhibiting high transparency; and a molded body of this polyvinylidene fluoride resin composition. A resin composition according to the present invention, which solves the above-described problem, contains a vinylidene fluoride polymer as a main component, while containing ammonium phosphate and/or imidazolium sulfate.
The present invention addresses the problem of providing a binder that has sufficient adhesiveness in small quantities and that is not prone to gelling even when mixed with a positive electrode active material including nickel. A binder that solves the above problem contains a vinylidene fluoride polymer, and the vinylidene fluoride polymer includes vinylidene fluoride-derived structural units and two or more structural units represented by a specific structural formula.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
93.
BINDER, ELECTRODE MIXTURE, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY
The present invention addresses the problem of providing a binder that has sufficient adhesiveness in small quantities and that is not prone to gelling even when mixed with a positive electrode active material including nickel. A binder that solves the above problem contains a vinylidene fluoride polymer, and the vinylidene fluoride polymer includes vinylidene fluoride-derived structural units and two or more structural units having a carboxy group, and the slurry viscosity ratio used in a specific method is not more than 100%.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
A molded body according to the present invention is a surface-modified molded body containing a fluorine-based resin, a bonding strength is 10 MPa or higher when the atomic ratio (N/F) of nitrogen atoms to fluorine atoms determined by XPS of the molded body is 0.04 or less, the atomic ratio (Si/F) of silicon atoms to fluorine atoms is 0.10 or less, and the molded body and an aluminum plate are bonded to each other through pressure bonding at 5°C above the melting point of the fluorinated resin for 5 minutes at a pressure of 3 MPa.
The purpose of the present invention is to provide a simple production method for carbon quantum dots that mainly emit light having a wavelength of 520-580 nm when irradiated with blue light. The production method for carbon quantum dots that solves said problem has: a step for preparing a mixture including an organic compound that has a reactive group and that does not include boron atoms, and a boron compound; and a step for heating the mixture, substantially without the use of a solvent, in the presence of an alkali metal and/or an alkaline earth metal, and preparing carbon quantum dots. The quantity of nitrogen atoms included by the organic compound is in a specified range, the quantity of the boron compound is in a specified range, and the total quantity of the alkali metal and the alkaline earth metal is in a specified range.
The purpose of the present invention is to provide a method of obtaining halogenated alkenes at a high conversion rate with a high degree of selectivity using a catalyst produced by a simple method. A halogenated alkene production method according to the present invention includes a step in which a first catalyst containing fluorine and a specific metal, a second catalyst containing silicon and aluminum, and a halogenated alkane that has four or fewer carbon atoms and contains a fluorine atom are brought into contact with each other to induce the dehydrofluorination of the halogenated alkane.
The purpose of the present invention is to provide a method of obtaining halogenated alkenes with a high degree of selectivity from immediately after reaction initiation using an inexpensive catalyst. A halogenated alkene production method according to the present invention includes a step in which a halogenated alkane that has four or fewer carbon atoms and contains a fluorine atom is brought into contact with coal ash to induce the dehydrohalogenation of the halogenated alkane.
The purpose of the present invention is to provide a method of obtaining halogenated alkenes with a high degree of selectivity at a high conversion rate using an inexpensive naturally occurring catalyst. A halogenated alkene production method according to the present invention includes a step in which a halogenated alkane that has four or fewer carbon atoms and contains a fluorine atom is brought into contact with acid clay to induce the dehydrohalogenation of the halogenated alkane.
Provided is a method for producing an alkene, in which the conversion rate of a raw material which is halogenated alkane is high, a decrease in production speed over time is low, and a solvent that is easy to recover and recycle is used. This method for producing an alkene includes a step for bringing a single phase solution, which contains a non-polar solvent, an alkali-based metal hydroxide comprising at least one of an alkali metal hydroxide and an alkaline earth metal hydroxide, an onium salt and a cation scavenger, into contact with a halogenated alkane represented by formula (1), which is soluble in the non-polar solvent. In formula (1), R1 and R2 are different from each other and each denote a halogen atom or a hydrogen atom, R3 denotes a hydrogen atom, a halogen atom that is the same type as R1 or R2, or a halogen atom whose bond dissociation energy from a carbon atom is greater than that of the halogen atom denoted by R1 or R2, and R4 is the same as R3 or denotes an alkyl group which has 1-3 carbon atoms and which may be substituted with an arbitrary halogen atom.
The present invention provides a method for producing an alkene, the method achieving high conversion rate and high selectivity even in a short period of time at low temperatures. A method for producing an alkene according to the present invention comprises a step in which a solution that contains t-butyl alcohol and at least one alkali-based metal hydroxide selected from the group consisting of alkali metal hydroxides and alkaline earth metal hydroxides, and a halogenated alkane that is represented by general formula (1) and is soluble in t-butyl alcohol are brought into contact with each other in the presence of a cation scavenger that does not have a hydroxyl group. In general formula (1), R1 and R2 are different from each other and each represent a halogen atom or a hydrogen atom; R3 represents a hydrogen atom, the same halogen atom as R1 or R2 represents, or a halogen atom that has a higher bond dissociation energy between itself and a carbon atom than the halogen atom represented by R1 or R2; and R4 represents the same atom as R3 represents, or an alkyl group that may be substituted by an arbitrary halogen atom and has 1 to 3 carbon atoms.
