Abstract: A thermoplastic resin composition comprising a graft copolymer (A), a vinyl copolymer (B), and a metal component (C), wherein: an amount of the metal component (C) is 60 ppm or more relative to a total mass of the thermoplastic resin composition, the graft copolymer (A) is a graft polymer obtained by polymerizing 80% by mass to 20% by mass of a vinyl monomer mixture (m1) including at least one type of vinyl monomer in the presence of 20% by mass to 80% by mass of a rubbery polymer (a) including a polyorganosiloxane and an alkyl (meth)acrylate polymer, the vinyl copolymer (B) is a vinyl copolymer obtained by polymerizing a vinyl monomer mixture (m2) including an alkyl (meth)acrylate monomer. and the metal component (C) is an alkali metal.
Type:
Application
Filed:
March 25, 2022
Publication date:
February 8, 2024
Applicants:
Techno-UMG Co., Ltd., Mitsubishi Chemical Corporation
Abstract: A polymer composition containing 100 parts by mass of a polyolefin-based polymer (a), 0.1 to 20 parts by mass of a polar polymer (b), and 0.1 to 25 parts by mass of an acid-modified polyolefin (d), the polar polymer (b) being at least one selected an ethylene-vinyl alcohol-based copolymer (b1) and a polyamide-based polymer (b2), wherein the acid-modified polyolefin (d) is a modified ethylene copolymer, the modified ethylene copolymer being a copolymer of an ethylene monomer and one or more ?-olefin monomers having 4 to 8 carbon atoms, and the copolymer being modified with an unsaturated carboxylic acid and/or an anhydride thereof, wherein the modified ethylene copolymer has a melt flow rate (MFR: 190° C., 2.16 kg) of 15 to 39 g/10 minutes.
Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.
Type:
Grant
Filed:
March 29, 2023
Date of Patent:
February 6, 2024
Assignees:
Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.
Type:
Grant
Filed:
March 30, 2023
Date of Patent:
February 6, 2024
Assignees:
Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Abstract: A diverting agent is provided which has solubility in water that can be controlled excellently and which does not easily dissolve at an early stage of filling of fractures in a well in excavation method using a hydraulic fracturing method and dissolves in water and can be easily removed after filling is no longer needed. The diverting agent contains powdery polyvinyl alcohol-based resins having an average particle diameter of 800 to 2000 ?m.
Abstract: A laminate may include a resin layer (a) containing a polycarbonate resin (A) containing a structural unit (A1) derived from a dihydroxy compound having a moiety of formula (1): CH2—O??(1), in a part of the structure thereof, and a resin layer (b) containing a polycarbonate resin (B) other than the polycarbonate resin (A) contained in the resin layer (a), and a laser color developer.
Abstract: A powder containing a resin composition for powder additive manufacturing, wherein the resin composition includes an aromatic polyester-based resin; and a 50% impact brittleness temperature of the resin composition measured by the brittleness temperature test described in JIS K7216 at a holding time of 3 minutes, a temperature ticking interval of 5° C., and a temperature range of ?70° C. to 25° is in a range of ?45° C. or higher and 10° C. or lower.
Abstract: The present invention provides an improvement relating to a method for producing a fiber-reinforced resin article at least partially having a structure comprising a bent or curved wall surface, such as a hollow structure part or a U-shaped cross-sectional structure part. A method for manufacturing a fiber-reinforced resin article according to the present invention has a molding step of heating, in a press metal mold, a prepreg preform together with a core comprising a wax material to obtain a cured product and a core removal step of removing the core from the cured product, where the core has an expansion part comprising a first wax material and a stamper part comprising a second wax material that is incompatible with the first wax material, the stamper part is disposed on a surface of the core, and a portion mirroring a shape of a surface of the stamper part is formed on a surface of the cured product.
Abstract: An object of the present invention is to provide a structural body that has high vibration damping and high sound-insulating performance which exceeds mass law while being relatively light weight, that is highly flexible in design, excellent in versatility, and easy to manufacture so that productivity and economic efficiency can be improved. The object thereof is achieved with a sheet member of a sheet having a thickness of 1 mm or less and having rubber elasticity and a resonant portion, wherein the resonant portion is provided in contact with a surface of the sheet, the resonant portion including a base part and a weight part, and the weight part being supported by the base part and having a larger mass than the base part.
Abstract: There is provided an epoxy resin composition comprising a (meth)acrylic copolymer (A), an epoxy resin (B), and a curing agent (C), wherein the (meth)acrylic copolymer (A) has a constituent unit derived from a macromonomer (a) and a constituent unit derived from a vinyl monomer (b), and wherein a glass transition temperature (TgB) of a polymer obtained by polymerizing only the vinyl monomer (b) is 25° C. or less.
Type:
Grant
Filed:
March 2, 2020
Date of Patent:
January 30, 2024
Assignee:
Mitsubishi Chemical Corporation
Inventors:
Eri Masuda, Junichi Nakamura, Kazuyoshi Odaka, Sora Tomita, Go Otani
Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and when, in a powder X-ray diffraction spectrum of the phosphor, the intensity of a peak that appears in a region where 2?=38-39° is designated as Ix and the intensity of a peak that appears in a region where 2?=37-38° is designated as Iy, the relative intensity Ix/Iy of Ix to Iy is 0.140 or less, and a light-emitting device comprising the phosphor.
Type:
Grant
Filed:
March 30, 2023
Date of Patent:
January 30, 2024
Assignees:
Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Abstract: A resin composition contains an ethylene-vinyl alcohol copolymer, wherein the ratio (Y/Z) of a lactone ring content (Y) to the sum (Z) of a carboxylic acid content (X) and the lactone ring content (Y) in terminal structures of the ethylene-vinyl alcohol copolymer is not less than 55 mol %, and at least one of a cinnamic acid component, a lubricant, a boron compound, and a conjugated polyene compound is present as a thermally stabilizing substance in a predetermined proportion based on the weight of the resin composition. Therefore, the resin composition is excellent in high-temperature thermal decomposition suppressing effect and thermal stability, and is free from odor emanation and coloration even if being processed at a higher temperature.
Type:
Grant
Filed:
June 5, 2019
Date of Patent:
January 30, 2024
Assignee:
MITSUBISHI CHEMICAL CORPORATION
Inventors:
Kota Inoue, Honoka Hashimoto, Nobuaki Sato
Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and when, in a powder X-ray diffraction spectrum of the phosphor, the intensity of a peak that appears in a region where 2?=38-39° is designated as Ix and the intensity of a peak that appears in a region where 2?=37-38° is designated as Iy, the relative intensity Ix/Iy of Ix to Iy is 0.140 or less, and a light-emitting device comprising the phosphor.
Type:
Grant
Filed:
March 30, 2023
Date of Patent:
January 30, 2024
Assignees:
Mitsubishi Chemical Corporation, National Institute for Materials Science
Abstract: An electrophotographic photoreceptor includes: a conductive support; a photosensitive layer on the conductive support; and a protective layer, for example, an outermost layer on a side opposite to the conductive support, wherein the protective layer contains a polymer having a structure represented by the following formula (a): A1-L1-X-L2-A2??(a).
Abstract: To provide a sound-insulating sheet member capable of being installed in a location with a limited installation space and allowing for insulation of low-frequency sound, and a sound-insulating structure body including the sound-insulating sheet member. A sound-insulating sheet member including a sheet portion having rubber elasticity, and a plurality of protrusion portions that is provided on at least one face of the sheet portion and that has rubber elasticity, in which at least one of the protrusion portions and a region of the sheet portion, where the protrusion portions are provided, contains a space portion.
Abstract: To provide a resin composition and a molded article. The resin composition contains a thermoplastic resin and an electrically conductive substance, wherein the resin composition formed into a molded article with a size of 100 mm×100 mm×t mm thick, provided that t is a value in a case where Concentration C (mass %) of an electrically conductive substance in the resin composition×Thickness t (mm) gives a value of 1.2 or more, has a ? absorptance of 20.0% or less, which is a difference between a maximum value and a minimum value of the absorptance in the frequency range of 28.0 GHz to 40.0 GHz; and has the absorptance of 35.0% or more at a frequency of 28.
Abstract: The present invention provides a resin additive capable of imparting low temperature impact properties to a resin material, a resin composition comprising the resin additive, and a molded article formed from the resin composition. The resin additive of the present invention is a polymer having a structural unit (a1) derived from the following monomer (1); the resin composition of the present invention comprises the resin additive and a resin material; and the molded article of the present invention is formed from the resin composition.
Abstract: Provided is a fluorine-containing synthetic silica glass powder which contains a sufficient amount of fluorine, and in which a reduction in the fluorine concentration caused by dissociation of fluorine from silica can be inhibited. Problems are solved by a fluorine-containing silica glass powder which contains particles having a particle size of more than 150 ?m but 300 ?m or less in an amount of 25% by weight or more as a whole. Also provided as a method of producing the glass powder is, for example, a method of producing a fluorine-containing silica glass powder, which method includes: prefiring a silicon oxide at a temperature of lower than 1,000° C. in the presence of SiF4 to prepare a fluorine-containing silica; and subsequently firing the fluorine-containing silica at a temperature of 1,000° C. or higher but lower than 1,400° C. to produce a silica glass powder.
Abstract: A pretreatment agent for inkjet textile printing and an inkjet textile printing method that can realize improvement in productivity, cost reduction, energy saving, and space saving while ensuring ink permeation and resistance to color bleeding are provided. The pretreatment agent for inkjet textile printing of the present invention contains an N-vinylformamide-based cationic polymer and an antifoaming agent.
Abstract: The object of the present invention is to provide a needle coke for a graphite electrode, which suppresses puffing of the needle coke and improves the production yield and performances of graphite electrodes without incurring a large cost in the production of a needle coke, and also provide a production method and an inhibitor therefor. An inhibitor for graphite electrode production, including at least one of a metal consisting of an element (M?) and an oxide comprising the element (M?), wherein the element (M?) is at least one element selected from the group consisting of group 4 elements, group 8 elements, group 9 elements, group 10 elements, group 13 elements, group 14 elements and group 15 elements of the long-form periodic table, or including at least one of the metal consisting of an element (M?) and a compound including the element (M?), wherein the inhibitor volatilizes at a temperature of 2100 to 6000° C.