Abstract: A golf club shaft which satisfies strength and is lightweight is provided by the present invention. This golf club shaft comprises one or more fiber-reinforced resin layers, and is characterized by satisfying the following relationship (1), wherein x [mm] is the displacement in a cantilever bending test, M [g] is the mass of the golf club shaft, and L [mm] is the length thereof, and by satisfying the following strength standard values [1]-[4]: M×(L/1168)<49.66 e?0.0015x (relationship 1); [1] the three-point bending strength at T-90 (the position 90 mm apart from the smaller-diameter end) is 800 N or higher; [2] the three-point bending strength at T-175 (the position 175 mm apart from the smaller-diameter end) is 400 N or higher; [3] the three-point bending strength at T-525 (the position 525 mm apart from the smaller-diameter end) is 400 N or higher; and [4] the three-point bending strength at B-175 (the position 175 mm apart from the larger-diameter end) is 400 N or higher.

Abstract: Provided is a multi-core optical fiber which is capable of achieving the same level of light receiving capacity as that of a single-core plastic optical fiber, while being reduced in bending loss. A multi-core optical fiber according to the present invention has a plurality of cores and sea portions that are formed around each core. This multi-core optical fiber satisfies at least condition (1) or condition (2) below: (Condition 1): The occupancy rate of the total cross-sectional area of cores is 80˜95% of the outer region in the cross section of a multicore optical fiber. (Condition 2): The occupancy rate of the total cross-sectional area of cores is 82˜93% of the cross section of a multicore optical fiber.

Abstract: The purpose of the present invention is to provide a rod lens array, which has a deep depth of focus and a small depth of focus spot. The present invention provides a rod lens array that is equipped with at least one line of rod lenses between two substrates, said line of rod lenses having a plurality of columnar rod lenses wherein the refractive index decreases toward the outer periphery from the center, said rod lenses being arranged in such a manner that the center axes of the rod lenses are substantially parallel to each other. The rod lens array is characterized in that the average value (DOFave) of the depth of focus (DOF) is at least 0.9 mm, and the depth of focus spot (DOFcv) in the scanning direction of the line of rod lenses is not more than 12%.

Abstract: Disclosed is a membrane module unit in which a plurality of membrane modules is coupled together in parallel by coupling means, the membrane module including a sheet-like filter membrane and holding frame members that hold the filter membrane at two opposed sides of a peripheral edge of the filter membrane, wherein the coupling means clamps the holding frame members at the same sides of the filter membranes together by two opposed clamping members. According to the invention, provided is a membrane module unit in which structure is simple, assembly, disassembly, and maintenance can be easily performed, and a plurality of membrane modules can be reliably coupled together. Provided are also an assembly method, disassembly method, and maintenance method of the same, and a water-treatment apparatus.

Abstract: The present invention provides a (meth)acrylic acid-producing method capable of suppressing formation of carbides so that the production yield of (meth)acrylic acid is enhanced. In such a method, (meth)acrylic acid is produced through gas-phase catalytic oxidation reactions of (meth)acrolein by using molecular oxygen in a fixed-bed reactor configured to have a packed layer containing a packing material and a catalyst layer formed with a catalyst containing at least molybdenum and vanadium. The packed layer contains a packing material that has been used at least once for above gas-phase catalytic oxidation reactions, and the catalyst is present in the packed layer at 0.001˜0.15 mass % of the total amount of the packing material.

Abstract: This resin composition for secondary battery electrodes contains (A) a polymer that contains a vinyl cyanide unit but does not contain an acidic group, (B) a polymer that contains an acidic group and (C) a compound that contains a hydroxyl group.

Abstract: The invention relates to a polyester resin for toner, the polyester resin containing a monomer unit derived from isosorbide and a monomer unit derived from 1,2-propanediol, in which the proportion of the monomer unit derived from isosorbide is from 2 to 11% by mass with respect to the total mass of the polyester resin, and a glass transition temperature (Tg) of the polyester resin for toner is from 56 to 70° C. According to the invention, it is possible to provide a polyester resin for toner from which toner excellent in storage stability, fixing property, hot offset resistance and image stability in the case of using isosorbide is obtained, and a method for producing the polyester resin for toner. In addition, the toner obtained from the polyester resin for toner of the invention is excellent in storage stability, fixing property, hot offset resistance and image stability in the case of using isosorbide.

Abstract: A hollow porous membrane including a porous membrane layer having a hole on an outer surface, wherein a membrane thickness of the porous membrane layer is 70 ?m or more, and the porous membrane layer has a region A, the correlation between a depth X (?m) and an average pore size Y (?m) of holes on a cutting plane at the depth X (?m) satisfies a regression line Y=aX+b in the case of cutting an outer surface of the porous membrane layer by the depth X (?m) in the region A, a slope a of the regression line is 0<a?0.08 and a coefficient of determination R2 of the regression line is 0.90 or more, and a, b, and R2 are determined by the following Equations (2?), Equation (3?), and Equation (4?), respectively.

Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acyrlate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.

Abstract: A wire covering material and a covered wire using the wire covering material is provided, wherein the wire covering material is formed by molding a vinyl chloride based resin composition which includes 0.1 parts by mass to 20 parts by mass of (B) and 10 parts by mass to 150 parts by mass of (C) based on 100 parts by mass of (A), and which is excellent in surface smoothness even when manufactured under high linear speed production condition. (A) A vinyl chloride based resin; (B) A powdery processing aid including an alkyl methacrylate based copolymer which is obtained by polymerizing a 10 mass % to 100 mass % of an alkyl methacrylate for which the alkyl group of the alkyl ester part includes a straight chain or branched alkyl group having 3 to 5 carbons, 0 mass % to 90 mass % of a methyl methacrylate, and 0 to 20 mass % of other copolymerizable monomer. (C) A plasticizer.

Abstract: The present application pertains to a production method for a polymer, including a step for polymerizing a starting material composition (I) that includes: a monomer mixture (I-1) containing a macromonomer (a) represented by the following formula (1), and (b) a vinyl monomer; and 0.01 to 5 parts by mass of a non-metallic chain transfer agent with respect to 100 parts by mass of the monomer mixture (I-1); a polymer obtained by the production method; and a molded article. According to the present invention, there can be provided a polymer having exceptional resistance to dwell-induced degradation, and a molded article having exceptional yellowing resistance, a low haze value, and exceptional pliability.

Abstract: The invention provides a flexible vinyl chloride resin composition, a molded product obtained from the resin composition, an electric wire coating material, and an electric wire coated by the electric wire coating material. In the flexible vinyl chloride resin composition, based on 100 parts by mass of (A), the content of (B) is 0.1 parts by mass to 20 parts by mass and the content of (C) is 10 parts by mass to 150 parts by mass. A molded product having excellent surface smoothness and excellent flexibility can be obtained via the flexible vinyl chloride resin composition even under the condition of high production speed.

Abstract: Provided is a water-insoluble N-vinylcarboxylic acid amide (co)polymer having crosslinked bonds, in which a vinylamine (co)polymer obtained by hydrolyzing the polymer is soluble in water.

Abstract: A binder resin for an electrode of a nonaqueous electrolyte secondary battery is provided, which is used as the binder resin in a slurry composition for an electrode of a nonaqueous electrolyte secondary battery, containing a binder resin, an active material and an organic solvent.

Abstract: A structure with a substrate, and a fine-unevenness-structure layer provided to at least one surface of the substrate, wherein the fine-unevenness-structure layer is disposed at a surface of the structure, the indentation elastic modulus of the structure is 1-1300 MPa, and the ratio (??) of the rate of change of the coefficient of kinetic friction of the surface of the structure is 0.15-1.05, wherein ??=??f/??s: ??s represents the rate of change of the coefficient of kinetic friction of the surface of the structure at an initial-abrasion stage of a reciprocating abrasion test; and ??f represents the rate of change of the coefficient of kinetic friction of the surface of the structure immediately prior to the end of the reciprocating abrasion test. This structure exhibits excellent scratch resistance without compromising on the optical performance thereof, such as the antireflection performance.

Abstract: This laminate film used in a touch panel device is provided with a substrate, a refractive index adjusting layer which is provided on the first side of the substrate, a transparent conductive layer provided on the side of the refractive index adjustment layer opposite the substrate, and a fine uneven structure layer provided on the second side of the substrate, wherein the fine uneven structure layer has a fine uneven structure in which the average interval between protrusions and recesses on the surface is 400 nm or less, and is provided on the second surface of the substrate such that the surface opposite of the surface having the fine uneven structure faces towards the substrate.

Abstract: Provided is an electrically conductive composition that includes: an electrically conductive substance (A); and a water-soluble polymer (b) having a hydrophilic group, and a C13 or greater terminating hydrophobic group.

Abstract: A hollow fiber membrane module in which a housing body forming the hollow fiber membrane module includes an insertion opening into which end parts of the plurality of hollow fiber membranes are inserted so as to be fixed and held, and an opening portion which exposes open end surfaces of a plurality of hollow fiber membranes inserted from the insertion opening to outside, and a cover that blocks the opening portion of the housing body. According to the present invention, it is possible to provide a housing enabling open end surfaces of hollow fiber membranes to be sealed by easily exposing the open end surfaces of the hollow fiber membranes when the hollow fiber membranes are damaged.

Abstract: The purpose of this invention is to provide a biochip holder and holding kit that make it possible to efficiently process large numbers of biochips that have detection samples exposed on both sides. This invention provides a biochip holder characterized by having the following: a concavity (24) that accommodates a biochip (10); and support parts (26) that are provided at the edges of said concavity and support the biochip accommodated inside the concavity such that said biochip is substantially horizontal and the underside thereof is above the bottom surface (24a) of the concavity with a gap therebetween.

Abstract: Provided is a precursor for producing polyvinylamine aqueous solution having high storage stability without any decrease in the viscosity of the precursor aqueous solution even with long-term storage when producing polyvinylamine aqueous solution. A powdered N-vinylcarboxamide polymer composition containing N-vinylcarboxamide polymer, the viscosity of an aqueous solution of polyvinylamine obtained by hydrolyzing the polymer being 1.0×106 mPa·s (25° C.) or lower and the content of azo initiator in the aqueous solution being from more than 0 parts by mass to 0.05 parts by mass per 100 parts by mass of polyvinylamine.