Abstract: One embodiment of the present invention is an ethylenic polymer particle, having a specific surface area of larger than 2.00 m2/g and 30.0 m2/g or smaller, as determined by a BET method from the adsorption/desorption isotherms measured by a nitrogen gas adsorption method, and a median diameter (D50) of 20 ?m or larger and 700 ?m or smaller as determined by laser diffraction/scattering.

Abstract: An object of the present disclosure is to provide a thermoplastic elastomer composition with good oil permeability resistance (oil impermeability). The present disclosure pertains to a thermoplastic elastomer composition containing an ethylene copolymer (A) having a weight-average molecular weight of 350,000 or more, a crystalline olefin polymer (B), a crosslinking agent (C), and a plasticizer (D), wherein the content of the plasticizer (D) is less than 130 parts by mass based on 100 parts by mass of the copolymer (A).

Abstract: Provided are a curable composition containing a compound having two or more thio(meth)acrylate groups and a compound represented by Formula (1), a cured product obtained by curing the curable composition, a molded body including the cured product, and an optical material including the molded body.

Abstract: A resin includes a cured product of a polymerizable composition including a compound represented by the following general formula (1) and a thiol compound having one or more mercapto groups, and a biomass degree of the resin is 15% or more. In the general formula (1), each of R1 and R2 independently represent a hydrogen atom or a methyl group, and n represents an integer of 0 or 1.

Abstract: A pellicle film for photolithography including a carbon nanotube film, in which the carbon nanotube film contains carbon nanotubes; the carbon nanotube film transmits 80% or more of EUV light at a wavelength of 13.5 nm; the carbon nanotube film has a thickness from 1 nm to 50 nm; the carbon nanotube film is deposited on a silicon substrate, in which the 3? of the reflectance is 15% or less when the reflectance of the deposited carbon nanotube film is measured using a reflectance spectrophotometer-based film thickness meter under the following conditions: the diameter of measurement spots, 20 ?m; the reference measurement wavelength, 285 nm; the number of measurement spots, 121 spots; the distance between the centers of adjacent measurement spots, 40 ?m.

Abstract: A method for producing a (meth)acrylamide compound, comprising synthesizing a (meth)acrylamide compound (X) by reacting a (meth)acrylic acid with a primary amine compound in the presence of a condensing agent.

Abstract: A method of producing an optical member includes: bonding a film to outer peripheral faces of a mold substrate and a resin substrate that are arranged to face each other with a predetermined spacing therebetween, thereby forming a space enclosed by the mold substrate, the resin substrate, and the film; injecting a polymerizable composition into the space; and curing the polymerizable composition injected into the space, thereby obtaining a cured material. The film satisfies at least one of the following conditions (i) and (ii): in a case in which the film is bonded to the resin substrate and subjected to a heat-resistance index test at 50° C. for 3 minutes, (i) the film does not detach from the resin substrate, and (ii) the film exhibits a stretch ratio of more than 0%.

Abstract: A cyclic olefin-based copolymer including: (A) structural units (A) derived from one or more olefins represented by General Formula (I), (B) structural units (B) derived from one or more cyclic non-conjugated dienes represented by General Formula (II), and (C) structural units (C) derived from one or more cyclic olefins represented by General Formula (III).

Abstract: A monomer composition for a dental material containing a (meth)acrylamide compound (A) including a cyclic structure and a (meth)acrylamide group.

Abstract: It is an object of the present invention to provide a monomer which can provide a cured product having both high toughness and rigidity. The present invention is a (meth)acrylate (D) which is a reaction product of a thiol compound (A) having two or more mercapto groups; an iso(thio)cyanate compound (B) having two or more iso(thio)cyanato groups; and a hydroxy (meth)acrylate compound (C) having one or more polymerizable groups.

Abstract: The present invention relates to an olefin resin including a copolymer of an olefin macromonomer with a non-conjugated diene.

Abstract: A (meth)acrylate includes a compound (X) having a structure formed by a reaction of an epoxy compound (A) containing an epoxy group and a tertiary carbon atom or a quaternary carbon atom, a (meth)acrylic acid (B), and an iso(thio)cyanate compound (C) having two or more iso(thio)cyanate groups.

Abstract: The polymerizable composition for optical materials of the present invention includes a polyester polyol (a), a compound (b) of which light absorption characteristics vary by sensing changes in environment; and a polymerization reactive compound (c).

Abstract: A laminated film includes a first polyolefin-based resin layer including a first polyolefin-based resin having a melting point of from 95° C. to 200° C., a second polyolefin-based resin layer including a second polyolefin-based resin having a melting point of less than 95° C., and a third polyolefin-based resin layer including a third polyolefin-based resin having a melting point of from 95° C. to 200° C., which are disposed in this order. The laminated film has an oxygen permeability of from 7,500 mL/m2·day·atm to 85,000 mL/m2·day·atm.

Abstract: Provided are a polyfunctional (meth)acrylate thioester composition containing a polyfunctional (meth)acrylate thioester compound represented by Formula (1), a curable composition containing the polyfunctional (meth)acrylate thioester composition, a cured product obtained by curing the curable composition, a molded body including the cured product, and an optical material including the molded body.

Abstract: There is provided a resin composition for a lens, which contains a photocationic polymerization initiator (X) including a salt formed from an anion represented by General Formula (1) and a cation and contains an epoxy compound (Y) containing two or more epoxy groups in a molecule. (In General Formula (1), R1 to R4 each independently represent an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 14 carbon atoms.

Abstract: The present invention relates to a non-oriented film, a laminated body, and a package, the non-oriented film has a sealant layer composed of a resin composition including a propylene-based polymer (A), a 1-butene/?-olefin copolymer (B), and a propylene/?-olefin copolymer (C) in predetermined fractions and a substrate layer: the propylene-based polymer (A) has a melting point (Tm) measured by differential scanning calorimetry (DSC) of 120° C. or higher and 170° C. or lower; the copolymer (B) has a melting point measured by DSC of lower than 120° C. and contains 51 to 99 mol % of a 1-butene-derived constitutional unit and 1 to 49 mol % of an ?-olefin-derived constitutional unit; the copolymer (C) has a melting point measured by DSC of lower than 120° C. and contains 51 to 95 mol % of a propylene-derived constitutional unit and 5 to 49 mol % of an ?-olefin-derived constitutional unit.

Abstract: A polymerizable composition for optical materials of the present invention contains (A) a polyisocyanate compound, (B) a polythiol compound, (C) a photochromic compound, (D) a polyether compound having a number-average molecular weight of 50 to 10,000, and (E) a polyether-modified siloxane compound having a viscosity of 1 mPa·s or more and less than 1,600 mPa·s.

Abstract: The present disclosure provides a lithium borate compound represented by the following Formula (I), an additive for a lithium secondary battery, which contains the lithium borate compound, a non-aqueous electrolyte solution for a lithium secondary battery, a lithium secondary battery precursor, and a lithium secondary battery and method of producing the same. In Formula (I), R represents a single bond or an alkylene group having from 1 to 4 carbon atoms.

Abstract: The disclosure addresses provision of a pellicle demounting method having excellent property with respect to reduction of contamination of a photomask. A method of demounting a pellicle, the method is provided which includes: providing a stack including a photomask, a pellicle frame, and a pellicle film that are arranged in this order; providing an electrode; and a demounting step including disposing the stack and the electrode such that the pellicle film in the stack and the electrode face each other, and applying a voltage to the electrode to generate an electrostatic attractive force, which attracts the pellicle film in a direction toward the electrode, thereby demounting the pellicle film from the photomask in the stack.