24 results about "Compound (substance)" patented technology

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.

An object of the present invention is to provide a solid substance, a molded article, and a method for producing the solid substance, which can form a molded article that is less likely to generate blisters due to ozone and has excellent ozone resistance. 【Solution means】The solid substance of the present invention is a powdery or pelletized solid substance containing a copolymer containing a unit A based on tetrafluoroethylene and a unit B based on a monomer selected from the group consisting of a monomer represented by the formula (1) (CF2=CF-O-(CF2) n -CF3) and a monomer represented by the formula (2) (CF2=CF-CF2-O-(CF2) n -CF3), wherein the total number of functional groups of -CF=CF2, -CF2H, -COF, -COOH, -COOCH3, -CONH2, and -CH2OH is less than 150 per 10 main chain carbons of the copolymer, and substantially does not contain a compound represented by the formula (3) (CF3-(CF2) 6 -COOH). n-1 ​

Provided is a curing reactive organopolysiloxane composition that forms a pressure-sensitive adhesive layer having excellent curing properties, a wide range of designable viscoelastic properties such as storage elastic modulus (G′) and the like, and practically sufficient pressure-sensitive adhesive strength and tensile adhesive strength. The organopolysiloxane composition comprises: (A) an organopolysiloxane having an alkenyl group; (B) an organopolysiloxane resin with 9 mol % or less of hydroxyl groups or the like relative to all silicon atoms in a molecule or resin mixture thereof; (C) an organohydrogenpolysiloxane; (D) an organic silicon compound having an alkenyl group; and (E) a hydrosilylation reaction catalyst. A ratio (molar ratio) of the substance amount of SiH groups in component (C) relative to the sum of alkenyl groups in components (A), (B) and (D) is 1.0 or more.

A process for producing a polymorphic or pseudo-polymorphic crystalline phase from a plurality of compounds (C,D,S1,S2), comprising the steps of preparing (I) a supersaturated solution from said compounds, homogenizing (II) said supersaturated solution in an ultrasonic bath, transferring (III) the supersaturated solution into a plurality of heated tubes (54), aging (V) the solutions transferred into the tubes for a determined period, exposing said tubes (54) to a pulsed and polarized laser beam before and / or during exposure, monitoring in situ the nucleation and then the growth of co-crystals inside said tubes (54), and filtering the exposed solutions to recover co-crystals larger than a predetermined minimum size.This process is implemented to carry out co-crystallization from at least one active substance (D) and one co-former (C) in at least one first solvent (S1) and one second solvent (S2), and it further comprises two preliminary steps: establishing a phase diagram from the respective physicochemical characteristics of said active substance (D), said co-former (C), said first solvent (S1) and said second solvent (S2), and then determining, from said phase diagram thus established, concentration, temperature and exposure conditions providing a stable phase for the production of co-crystals. See Figure 4.

The present invention provides: a mixture (10) with which it is possible to improve the diffusibility of a substance at the interface between an inorganic particle (19) and an electrolyte solution (22); a sheet (12); an electrode (16); a separator (15); and a power storage device (11). The electrolyte solution contains a first compound that is represented by chemical formula (1), a second compound that is represented by chemical formula (2) or chemical formula (3), and an electrolyte salt that is dissolved in the first compound and the second compound. In chemical formula (1), chemical formula (2), and chemical formula (3), R2 and R3 are different from each other, and R1, R2, and R3 each independently comprise an alkyl group having 4 or fewer carbon atoms, an alkoxyl group, an alkenyl group, an alkynyl group or a halogenated alkyl group, or alternatively comprise an alkyl group, an alkoxyl group, an alkenyl group, an alkynyl group or a halogenated alkyl group that are bonded to each other to form a ring structure. The molar fraction of the second compound with respect to the total of the first compound and the second compound is more than 0.2 but less than 0.5.

One aspect of the present invention provides a prepreg for a printed wiring board, the prepreg comprising: a thermosetting composition or a semi-cured product of the thermosetting composition, wherein the thermosetting composition contains 65 parts by mass or more of an inorganic filler relative to 100 parts by mass of a thermosetting compound, the inorganic filler containing, as a material, at least one substance that is selected from the group consisting of silica, quartz glass, and magnesium oxide, and the thermosetting compound containing at least one compound that is selected from the group consisting of a polyphenylene ether compound that has a carbon-carbon unsaturated double bond in each molecule, a hydrocarbon compound that has a carbon-carbon unsaturated double bond in each molecule, and a thermosetting compound that has a fluorine atom in each molecule; and a fibrous base material that contains liquid crystal polymer fibers which have a dielectric loss tangent of 0.0015 or less at 5 GHz and 25°C. The respective abundance ratios of groups in the surface of the fibrous base material as determined by X-ray photoelectron spectroscopy are in a specific relationship.

The present invention provides a curable resin composition which has good non-stickiness and is capable of obtaining a cured product having not only excellent heat resistance (high glass transition temperature) and dielectric properties (low dielectric properties) but also excellent strength, and also provides a cured product, a varnish, a prepreg, and a circuit board. The curable resin composition contains (A) a curable resin having an indane skeleton represented by general formula (1), (B) a styrene-based thermoplastic elastomer, and (C) an aromatic vinyl compound. In formula (1), X represents a (meth) acryloyl group. (In the formula, Ra and Rb are each independently an alkyl group, an aryl group, an aralkyl group or a cycloalkyl group having 1-12 carbon atoms, j represents an integer of 1-3, and k and l each independently represent an integer of 0-4. N represents the average number of repeating units and represents a numerical value of 0.5-20, and m represents an integer of 0-2. In this connection, a straight line from Ra, X and a carbon atom to an aromatic ring represents an arbitrary site that may be bonded to the aromatic ring. [chemical] # imgabs0 #

The present invention belongs to the technical field of materials, and provides an anti-fingerprint agent, and a preparation method therefor and the use thereof. The anti-fingerprint agent is prepared from compounds such as trichlorotriazine, fluorine-containing aromatic diamine, methyl acrylate, and chloroalkyl siloxane and by means of reactions including substitution, addition, and polymerization. The anti-fingerprint agent has a hyperbranched three-dimensional structure, along with a C-F bond and a silane terminal group, and has excellent hydrophobic properties, anti-fouling properties, anti-fingerprint properties, abrasion-resistant properties, etc. Moreover, the anti-fingerprint agent does not contain per- or poly-fluoroalkyl substances (PFASs), which are restricted by the European Union, making it environmentally friendly. After coating, the initial water droplet angle on the surface of a substrate is 111° or above, and the water droplet angle still remains about 105° after rubbing with rubber and steel wool is performed 5000 times, such that the film has excellent anti-fingerprint and abrasion-resistant properties.

The invention provides a thermosetting maleimide resin composition. The thermosetting maleimide resin composition has a low melt viscosity when heated, a cured film that is a cured product thereof has excellent flexibility, a low relative dielectric constant and dielectric loss tangent, a high glass transition temperature, a low coefficient of thermal expansion, and excellent heat resistance and moisture resistance even after long-term placement. The thermosetting maleimide resin composition includes (A) a bismaleimide compound represented by formula (1) [Chemical Formula 1] # imgabs0 # (in formula (1), A represents a tetravalent organic group having a cyclic structure, B represents a divalent hydrocarbon group derived from a dimer acid skeleton, Q represents a divalent group having a fluorene skeleton or an indene skeleton, W is B or Q, n is 1-100, and m is 1-100. (B) a thermosetting resin having one or more maleimide group reactive functional groups selected from the group consisting of an alkenyl group, a maleimide group, an epoxy group, a cyanate group, a hydroxyl group, an acid anhydride group, a (meth) acryloyl group, and a thiol group; and (C) a reaction accelerator.

Provided is a bubble-containing hydraulic composition comprising a hydraulic powder, water, a component (A), and a component (B), wherein the average carbon number of R1a of the component (A) is 8.0-11.0, and the mass ratio [(A) / [(A)+(B)]] of the content of the component (A) to the total content of the component (A) and the component (B) is 0.35-0.90. Component (A) is a compound represented by general formula (A1): R1aOSO3M [in the formula, R1a is a C8-18 alkyl group or alkenyl group, and M is a cation] Component (B) is at least one substance selected from α-olefin sulfonates and salts thereof.

There are provided a polishing composition and a polishing method that enable high-speed polishing of simple-substance silicon under acidic conditions. A polishing composition for polishing simple-substance silicon contains: abrasives; and an adsorbing compound, in which, the pH is 1 or more and 6 or less, when a substrate having a surface containing simple-substance silicon is subjected to polishing of the surface using an aqueous solution containing the adsorbing compound and water, and then the adhesion force of the abrasives to the surface of the polished substrate and the coverage of the adsorbing compound are measured, a value obtained by multiplying the adhesion force and the coverage is more than 50 and less than 100, the adhesion force is attachment strength between the abrasives and the surface of the substrate calculated by the force curve measurement using a probe provided in an atomic force microscope, the probe contains the same material as that of the abrasives and has a tip portion having the same radius of curvature as that of the abrasives, and the coverage is the ratio of the area of a part covered with the adsorbing compound of the surface of the substrate to the area of the entire surface of the substrate.

The present invention discloses a control layer for the friction welding interface of dissimilar metals and a friction welding method for aluminum and steel, including micro-textures arranged on the metal surface, with a paste laid on the micro-textures, and the non-metallic substances in the paste are completely volatilized before the metallurgical bonding of dissimilar metals; the steps of the welding method include: preparing micro-textures in a specified area on the surface of a stainless steel plate, mixing Zn-20Al powder and ethanol to stir into a paste, then evenly laying the paste on the micro-texture area on the surface of the base material, and then performing friction stir welding. The welded joints obtained by the solution of the present invention have good toughness (plasticity), high strength, the joint interface achieves atomic-level close bonding, the mechanical properties of the joints are excellent, the joints have no porosity and crack defects, the adverse effects of brittle intermetallic compounds on the mechanical properties are weakened, the wetting and spreading properties and element diffusion ability at the interface are enhanced, and the obtained welded joints not only have good mechanical interlocking characteristics.

The invention relates to a curable adhesive substance comprising the following, in relation to the mass of the curable adhesive substance: a) one or more (meth)acrylate block copolymers X with an A-B-A structure in a combined mass fraction of 20% or more, wherein the A blocks independently represent a poly(meth)acrylate with a glass transition temperature Tg of 50° C. or more, which can be produced by polymerising an A monomer composition formed of A monomers, wherein the B block represents a poly(meth)acrylate with a glass transition temperature Tg of less than 50° C., which can be produced by polymerising a B monomer composition formed of B monomers; and b) one or more polymerisable compounds Y in a combined mass fraction of 20% or more, and wherein, for the polar fractions (weighted by substance amount) of the Hansen solubility parameters <δp>: i) of the monomer units in the A blocks <δp>(A) derived from A monomers, ii) of the monomer units in the B block <δp>(B) derived from B monomers, and iii) of the polymerisable compounds Y <δp>(Y), the following is true: −|<δp>(A)−<δp>(Y)|>3.5 MPa0.5, and −|<δp>(B)−<δp>(Y)|<3.5 MPa0.5.

This cubic boron nitride sintered compact comprises 40-80 vol% of cubic boron nitride particles and 20-60 vol% of a binder phase. The average particle diameter d of the cubic boron nitride particles is 0.1-3 µm. The binder phase contains: at least one selected from a second group consisting of elementary substances of one element selected from a first group consisting of aluminum, group-4 elements, group-5 elements, and group-6 elements in the periodic table, alloys formed of two or more elements selected from the first group, and intermetallic compounds formed of two or more elements selected from the first group; or at least one selected from a fourth group consisting of first compounds formed of at least one element selected from the first group and at least one element selected from a third group consisting of nitrogen, carbon, boron, and oxygen, and solid solutions derived from the first compounds. In a cross section of the cubic boron nitride sintered compact, the coefficient of variation Z of area ratios of the cubic boron nitride particles is 0.25 or less. The coefficient of variation Z is obtained by: providing, in a binarized image of a backscattered electron image obtained by imaging the cross section of the cubic boron nitride sintered compact by using a scanning electron microscope at a magnification of 5000, a total of 260 unit regions each in a shape of a square in which the length of one side is two-fold of the average particle diameter d of the cubic boron nitride particles; calculating, on the basis of the total of 260 unit regions, the average of the area ratios and the standard deviation of the area ratios of the cubic boron nitride particles in each of the unit regions; and dividing the standard deviation by the average.

The application discloses a two-component furan resin binder for molding and a preparation method of foundry molding sand, wherein the binder comprises furan resin and hydrocarbon alkyl alkoxysilane; the hydrocarbon alkyl alkoxysilane comprises a compound with a structure shown in the following formula (I) and / or formula (II), the formula (I) is (OR 1 ) m1 (R 2 ) 4‑m1 Si, the formula (II) is (OR 3 ) n1 (R 4 ) 3‑ n1 Si-R 5 ‑Si(R 6 ) 3‑n2 (OR 7 ) n2 ; wherein R 1 , R 3 and R 7 are each independently selected from alkyl with 1-20 carbon atoms, R 2 , R 4 and R 6 are each independently selected from alkyl with 1-20 carbon atoms and alkenyl with 2-20 carbon atoms, R 5 is selected from alkylene with 1-20 carbon atoms and alkenylene with 2-20 carbon atoms, m1 is 1, 2, 3 or 4, and n1 and n2 are each independently 1, 2 or 3. The binder has excellent curing performance, excellent deep curing performance, and can accelerate the curing speed and reduce the emission of harmful substances. The molding sand prepared by using the binder has high tensile strength and excellent heat resistance and moisture resistance.

The present invention provides a practical technology that makes it possible to perform etching of titanium and copper by means of: an etching solution for titanium and copper; and a manufacturing method and an etching method for a wiring board using the same. The etching solution for titanium and copper is characterized by containing hydrogen peroxide, a strong alkali substance, and one or more compounds selected from the group consisting of a compound represented by general formula (I) (in formula (I), n indicates an integer of 1-4; when n is 1, A indicates –CH3, –CH2COOH, –C2H5, –C2H4–NH2, or –C2H4SO3H; and when n is 2-4, A indicates –H, –CH3, –CH2COOH, –C2H5, –C2H4OH, –C2H4–NH2, or –C2H4SO3H) and a compound represented by general formula (II) (in formula (II), m indicates an integer of 1-4; when m is 1, B indicates –CH2–CH2–NH2; when m is 2, B indicates –H, –CH2–CH2–NH2, or –CH2–, and when B is –CH2–, said B forms a cyclic structure with the other B; when m is 3, B indicates –H; and when m is 4, B indicates –H). Alternatively, the etching solution for titanium and copper is characterized by: containing diethanolamine and / or triethanolamine, hydrogen peroxide, and a strong alkali substance; having a pH of 12 or more; and containing no fluoride and ammonia and / or ammonium ions.

A method for breaking down a mixture, which is present in the form of solid particles, consisting of: (A) 0 to 99% by weight of metallic ruthenium, (B) 0 to 50% by weight of at least one element other than ruthenium, which is present in elementary form, selected from the group of elements of the atomic numbers 13, 21-30, 39-42, 45-52, and 72-83, (C) 0 to 99% by weight of ruthenium oxide, (D) 0 to 70% by weight of at least one solid element oxide other than ruthenium, (E) 0 to 30% by weight of at least one inorganic substance other than (A) to (D), and (F) 0 to 3% by weight of at least one organic substance, wherein the sum of the % by weight of the compounds (A) to (F) is 100% by weight and the ruthenium content of the mixture is 2 to 99% by weight, and wherein the method comprises the steps of: (1) optionally mixing said mixture with alkali carbonate by forming a blend, (2) alkaline oxidizing breakdown of the mixture or of the blend, respectively, formed in optional step (1) into molten potassium hydroxide using a gaseous oxidizing agent selected from the group consisting of air, oxygen, and air / oxygen mixtures, and without use of nitrate, and (3) cooling down the breakdown material formed in step (2) to a temperature below its solidification temperature, wherein the gaseous oxidizing agent is introduced into the melt in step (2).

The invention discloses a novel thermoelectric material based on N-type Bi2SbSe3 polycrystal and a preparation method thereof, and belongs to the technical field of thermoelectric material preparation, and the preparation method comprises the following steps: (1) weighing raw materials Bi elementary substance, Sb elementary substance and Se elementary substance, ensuring that the molar ratio of Bi to Sb to Se is 1: 1: 3, and mixing the raw materials after weighing; (2) carrying out high-temperature melting synthesis reaction on the raw materials mixed in the step (1); (3) grinding the BiSbSe3 compound obtained after the reaction in the step (2) is completed, then weighing the BiSbSe3 compound and the Bi elementary substance again to ensure that the molar ratio of BiSbSe3 to Bi is 1: 1, and mixing after weighing to obtain a mixed material; (4) carrying out solid-phase reaction on the mixed material in the step (3) to obtain Bi2SbSe3 polycrystals; and (5) sintering the obtained Bi2SbSe3 polycrystal for multiple times by using a discharge plasma sintering furnace to obtain a Bi2SbSe3 polycrystal block. According to the invention, the problems of large carrier effective mass and low mobility caused by disordered atoms of the Bi2SbSe3 thermoelectric material synthesized by melting are solved.

Provided is a capsule-containing curable resin composition capable of maintaining the sealing properties of a screwing part of a screwing member even in a durability test such as a thermal cycle test. A curable resin composition containing the following components (A)-(D): component (A): a capsule containing a polyfunctional epoxy resin and a monofunctional epoxy resin as an inclusion; component (B): a capsule in which a polythiol is encapsulated as an inclusion; component (C): a compound that promotes the curing of the inclusion of component (A) and the inclusion of component (B); and component (D): an inorganic filler.

A composition for forming a thermally conductive material contains a compound represented by General Formula (1), a phenolic compound, and an inorganic substance, in which a content of the compound represented by General Formula (1) is 30.0% by mass or greater with respect to a total organic solid content,(X—Z1—)m-A-(—Z2—Y)n  (1).

The invention relates to the field of graphene-based materials, and discloses a graphene-based composite material as well as a preparation method and application thereof, the composite material comprises a structural unit A from a polymaleimide compound as shown in a formula I, a structural unit B from a graphene-based substance and a structural unit D from furan resin, the structural unit B and the structural unit D are respectively connected with the structural unit A through the structural unit C shown in the formula II; in the formula (I), R is selected from alkylene of C1-C4, alkenylene of C2-C4, alkynylene of C2-C4, substituted or unsubstituted aryl of C6-C18, substituted or unsubstituted aromatic ether of C6-C18, or-(CH2CH2O) x-; in the formula (I), R is selected from alkyl of C1-C4, alkenylene of C2-C4, alkynylene of C2-C4, substituted or unsubstituted aryl of C6-C18, or-(CH2CH2O) x-; wherein R1 is an alkylene group with 1 to 4 carbon atoms; ar is a residue after a polyethyleneimine reaction; x is an integer of 1-8. According to the graphene-based composite material, the polymaleimide compound, the graphene-based substance and the furan resin are combined, and the obtained composite material is high in graphene-based substance content and high in conductivity.

A measurement system for determining a presence of a chemical substance in a sample. The chemical substance may refer to a simple chemical material or a chemical composition of several compounds. A method for determining a presence of a chemical substance in a sample wherein use is made of the measurement system.

A computer-implemented method includes determining a chemical mixture for a drilling fluid and maintaining or updating the chemical mixture. Determining the chemical mixture is based on a first interdependency of a first target property of a set of properties associated with the drilling fluid and a first substance to be added for the chemical mixture. Determining the chemical mixture is based on a second interdependency of the first target property and a second substance to be added for the chemical mixture. Maintaining or updating the chemical mixture is based on a first measurement of the first target property, a second measurement of a second target property of the set of properties, or combinations including one of the foregoing.

The hot-dip Zn-based coated steel sheet has a steel sheet and a coating layer, the coating layer being formed on at least a part of the surface of the steel sheet. The coating layer has a chemical composition consisting of the following substances by mass%: Al: 6.00 to 35.00%, Mg: 2.00 to 12.00%, Ca: 0.005 to 2.00%, Si: 0 to 2.00%, Fe: 0 to 2.00%, Sb: 0 to 0.50%, Sr: 0 to 0.50%, Pb: 0 to 0.50%, Sn: 0 to 1.00%, Cu: 0 to 1.00%, Ti: 0 to 1.00%, Ni: 0 to 1.00%, Mn: 0 to 1.00%, Cr: 0 to 1.00%, and the balance: Zn and impurities. In the cross-section in the thickness direction of the coating layer, the area ratio of the MgZn2 phase is 15 to 60%, and the MgZn2 phase contains a Ca-based intermetallic compound having an equivalent circle diameter of 0.10 μm or less.