Abstract: Provided is a polyamide resin composition that has a high electrical resistance in a high temperature region (around 130° C.) while having a high heat resistance. This polyamide resin composition comprises polyamide resin that contains a component unit (a) deriving from an aromatic dicarboxylic acid or alicyclic dicarboxylic acid and a component unit (b2) deriving from 1,3-bis(aminomethyl)cyclohexane. The polyamide resin composition further comprises at least one flame retardant (X) selected from the group consisting of polybrominated styrenes, brominated polystyrenes, and brominated polyphenylenes, or a flame retardant (Y) comprising a prescribed phosphinate salt compound or bisphosphinate salt compound or a polymer thereof.
Abstract: Provided is a polyamide resin composition that, at high temperatures, suppresses reductions in tensile strength due to the addition of a copper-based heat-resistance stabilizer, and maintains a tensile strength over longer periods of time in a hot environment. The composition includes a polyamide resin and a copper-based heat-resistance stabilizer. The polyamide resin includes: a component unit (a) derived from dicarboxylic acid which is derived from an aromatic dicarboxylic acid or an alicyclic dicarboxylic acid; and greater than or equal to 10 mol % and less than 50 mol % of a component unit (b2), which is derived from 1,3-bis(aminomethyl)cyclohexane, with respect to the total number of moles of a component unit (b) derived from diamine. The content of copper included in the copper-based heat-resistance stabilizer is 0.001 parts by mass to 0.050 parts by mass, inclusive, with respect to 100 total parts by mass of the polyamide resin.
Abstract: An object of the present invention is to provide a laminate of an olefin-type rubber, which is non-polar or has a small polarity and which is difficult to bond with a different material, and a rubber comprising Group 15 elements, which is a different kind of rubber. The laminate according to the present invention includes a structure including, in order, an olefin-type rubber layer (A); an adhesive resin layer (B) containing at least one selected from the group consisting of an ethylene/vinyl acetate copolymer, a silane-modified ethylene/vinyl acetate copolymer, an ethylene/acrylic acid copolymer and an ionomer thereof, and an ethylene/methacrylic acid copolymer and an ionomer thereof; and a layer (C) containing a rubber containing Group 15 elements.
Abstract: Provided is a composition for forming a film for semiconductor devices, including: a compound (A) including a Si—O bond and a cationic functional group containing at least one of a primary nitrogen atom or a secondary nitrogen atom; a crosslinking agent (B) which includes three or more —C(?O)OX groups (X is a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms) in the molecule, in which from one to six of three or more —C(?O)OX groups are —C(?O)OH groups, and which has a weight average molecular weight of from 200 to 600; and a polar solvent (D).
Type:
Grant
Filed:
July 15, 2020
Date of Patent:
April 23, 2024
Assignee:
MITSUI CHEMICALS, INC.
Inventors:
Yasuhisa Kayaba, Hirofumi Tanaka, Koji Inoue
Abstract: A multilayer film includes a layer that includes a 4-methyl-1-pentene-based polymer, and a layer that includes a polyolefin. The layer that includes a 4-methyl-1-pentene-based polymer and the layer that includes a polyolefin contact each other at at least a portion thereof, the inter-layer adhesion strength between the layer that includes a 4-methyl-1-pentene-based polymer and the layer that includes a polyolefin is 0.5 N/15 mm or more, and a heat-seal strength of from 3 N/15 mm to 15 N/15 mm is exhibited in a case in which two of the layers that include a polyolefin are brought into contact with each other and heat-sealed at 120° C.
Abstract: This external stimulus application system is structured so as to comprise: an external stimulus unit that applies an external stimulus to a target area of a user's body; a detection unit that detects changes in a detected area of the user's body during an action of the user; a control unit that causes the external stimulus unit to produce a stimulus if a detected value detected by the detection unit satisfies a prescribed condition; and a storage unit that stores the detected value.
Abstract: Provided is a photocurable composition used for forming a resin layer of a concave-convex structure including a substrate and a resin layer provided on the substrate and having fine concavities and convexities formed on a surface thereof. A cured film of the photocurable composition has a surface free energy of 15 mJ/m2 to 40 mJ/m2 as measured based on the Kitazaki-Hata theory and a hardness of 0.05 GPa to 0.5 GPa as measured using a nanoindenter.
Abstract: An object of the present invention is to obtain a resin composition with favorable high-speed formability, low adhesiveness to chill rolls and guide rolls upon film forming, and excellent adhesiveness to a resin having a polar group (polar resin). The present invention relates to a resin composition including 75 to 100 parts by mass of a propylene-based polymer (A), and 0 to 25 parts by mass of a copolymer (B) of ethylene and at least one ?-olefin selected from ?-olefins having 3 to 20 carbon atoms, and satisfying prescribed requirements, provided that the sum of the (A) and the (B) is 100 parts by mass, wherein at least a part of the propylene-based polymer (A) is modified with a polar compound, and the resin composition satisfies prescribed requirements.
Abstract: A polymerizable composition comprising: an episulfide compound represented by the following Formula (1); a polyiso(thio)cyanate compound; a polythiol compound; and an epoxy compound (X) which contains one or more epoxy groups within one molecule, and which does not contain an episulfide group.
Abstract: A resin composition and a multilayer body that includes the resin composition layer, the resin composition being characterized by containing a propylene-based polymer (A) in the range of 5 to 70% by weight; a soft propylene-based polymer (B) in the range of 30 to 95% by weight; a propylene-based polymer (C) graft-modified with an ethylenically unsaturated monomer, in the range of 0.1 to 20% by weight; a polyethylene (D) in the range of 0 to 20% by weight; and an ethylene/?-olefin random copolymer (E) in the range of 1 to 30% by weight, provided that a total amount of (A), (B), (C), (D), and (E) is 100% by weight.
Abstract: The eyewear according to the present invention comprise: a lens having an electrical element; a hollow temple for holding the lens; a control unit for controlling the electrical element; an electronic component electrically connected to the control unit through a wire; and a hollow member arranged inside the temple while storing the wire inside, the hollow member deforming after the deformation of an ear hook when the ear hook is deformed to make a fit.
Abstract: Disclosed are: a fiber-reinforced resin article which includes, on at least one face of a unidirectional fiber-reinforced resin sheet (UDS), a plurality of chopped sheets (CS) of a unidirectional fiber-reinforced resin sheet which is the same as or different from the abovementioned unidirectional fiber-reinforced resin sheet (UDS), wherein the ratio of the chopped sheets (CS), with respect to 100 parts by mass of the unidirectional fiber-reinforced resin sheet (UDS), is at least 40 parts by mass and no more than 100 parts by mass; a method for manufacturing a fiber-reinforced resin article, said method having a step for positioning a plurality of the chopped sheets (CS), and a step for heating and pressurizing; and a laminate including the fiber-reinforced resin article and a foam layer.
Abstract: Provided are a polymerizable composition for a dental material that can yield cured molded bodies having superior mechanical strength, a molded body obtained by curing the composition, and a dental material including the molded body. A polymerizable composition for a dental material, the polymerizable composition containing: one selected from the group consisting of allyl compound (A) and an oligomer of allyl compound (A); and (meth)acrylate compound (B).
Abstract: A monomer composition for a dental material including a compound represented by Formula (1). In Formula (1), X represents an n-valent organic group having from 1 to 200 carbon atoms and containing at least one selected from the group consisting of an oxygen atom and a nitrogen atom, in which the at least one selected from the group consisting of an oxygen atom and a nitrogen atom is bound to Y; and each Y represents a (meth)acryloyl group-containing group (Y1) represented by the following Formula (A), a (meth)acryloyl group (Y2), a hydrogen atom, or a hydrocarbon group having from 1 to 20 carbon atoms, with the proviso that at least one or more Y, among all Ys included in the compound represented by Formula (1), is the (meth)acryloyl group-containing group (Y1).
Abstract: The purpose of the present invention is to provide: a film having high thermal stability, high bending strength (tensile elongation), small retardation in the thickness direction, a low coefficient of thermal expansion, and high transparency; and a polyamic acid or varnish for obtaining the film. The film satisfies all of requirements (i)-(vi) below. (i) The average value of the coefficient of thermal expansion in the range of 100-200° C. is 35 ppm/K or less. (ii) The absolute value of the retardation in the thickness direction is 200 nm or less per 10 ?m of thickness. (iii) The glass transition temperature is 340° C. or higher. (iv) The total light transmittance is at least 85%. (v) The b* value in the L*a*b* color system is 5 or less. (vi) The tensile elongation is at least 10%.
Abstract: A water dispersion composition containing an ethylene·?-olefin copolymer acid-modified product (B) in a range of 0.01 to 50% by mass, wherein the ethylene·?-olefin copolymer acid-modified product (B) is an acid-modified product of an ethylene·?-olefin copolymer (A) satisfying requirements (A1) to (A6) as specified herein and also satisfies the requirements (B1) to (B5) as specified herein.
Abstract: Provided is a pellicle film, which includes plural carbon nanotubes, in which an average value of linearity parameters represented by the following Formula (1) of the plurality of carbon nanotubes is 0.10 or less: linearity parameter=standard deviation Sa of a width of single tube/average value Aa of the width??Formula (1): wherein, in Formula (1), the single tube indicates one carbon nanotube included in the plural carbon nanotubes, each of the standard deviation Sa and the average value Aa is calculated based on 11 measurement values obtained by measuring a width of the single tube at intervals of 2 nm along a longitudinal direction of the single tube.
Abstract: A polythiol composition including a polythiol compound (A) and a compound represented by formula (1), wherein, in formula (1), m and n each independently represent 0 or 1, and m+n=1.
Abstract: A method for manufacturing a photochromic lens includes: a step of injecting a polymerizable composition through an injection part in an injection molding apparatus and filling a gap with the polymerizable composition through a space; a step of heating the filled polymerizable composition to be polymerized and cured and forming a photochromic layer on a resin substrate; and a step of taking out a resulting laminate composed of the resin substrate and the photochromic layer, in which the polymerizable composition includes an isocyanate compound, a thiol compound, a polyol compound, and a photochromic compound.
Abstract: [Problem] To provide a laminate having a polar resin layer, which is excellent in transparency and mechanical strength (in particular impact resistance), and a polar resin composition for forming the polar resin layer of the laminate having such properties. [Solution] A polar resin composition including 5 to 30% by mass of an ethylenic polymer (A), 40 to 85% by mass of a polar resin component (B), and 10 to 40% by mass of a modified ethylene/?-olefin copolymer (C) obtained by modifying an ethylene/?-olefin copolymer (CO) with an unsaturated carboxylic acid or a derivative thereof and having a melt flow rate (190° C., 2.16 kg load) of 0.1 to 50 g/10 minutes, provided that the sum of proportions of the (A), (B), and (C) is 100% by mass.