Abstract: There is provided a geomembrane consisting of a multilayer structure comprising a barrier layer (A), an adhesive layer (B) made of an acid-modified thermoplastic resin and a thermoplastic resin layer (C), wherein the thermoplastic resin layer (C) is laminated on at least one side of the barrier layer (A) via the adhesive layer (B), and the barrier layer (A) has an ethylene unit content of 18 mol % or more and 55 mol % or less and comprises a modified ethylene-vinyl alcohol copolymer comprising a modifying group having a primary hydroxyl group. The geomembrane exhibits excellent peer strength between the barrier layer and the adhesive layer, exhibits further improved peel strength after prolonged exposure to high temperature and high humidity conditions.

Abstract: A resin composition superior in stability and external appearance characteristics during/following melt molding; and an extrusion-molded article, an injection-molded article and a blow-molded article that are formed from the resin composition are provided. The resin composition contains an ethylene-vinyl alcohol copolymer as a principle component, and has a heterogeneous nucleation index (f) of less than 0.6 as determined by formula (1) based on a differential scanning calorimetry (DSC) curve obtained by DSC in which the resin composition is cooled at a rate of 150° C./sec from a molten state at 210° C. In the formula (1), Qtotal represents an area of a total region surrounded by the DSC curve and a base line, and Qhetero represents an area of a heterogeneous region that is a part of the total region, falling within a range from the temperature lower than the melting point by 38° C. to a temperature lower than the melting point by 75° C.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.

Abstract: A resin composition (E) includes from 0.1 to 20 parts by mass of an ethylene-vinyl alcohol copolymer (B), from 0.1 to 20 parts by mass of an acid-modified polyolefin (C), and from 0.1 to 10 parts by mass of an acid-modified polyolefin (D) based on 100 parts by mass of a polyolefin (A), wherein the polyolefin (A) has an MFR (190° C., under a load of 2.16 kg) from 0.01 to 10 g/10 min, the acid-modified polyolefin (C) has an acid value from 0.1 to 9 mg KOH/g, the acid-modified polyolefin (D) has an acid value of more than 10 mg KOH/g and 120 mg KOH/g or less, and a ratio (D/A) of an MFR (190° C., under a load of 2.16 kg) of the acid-modified polyolefin (D) to the MFR (190° C., under a load of 2.16 kg) of the polyolefin (A) is 50 or more. The resin composition (E) of the present invention causes reduction in the amount of deteriorated materials adhering to a screw and/or a die even when long-term continuous melt molding is conducted.

Abstract: A composite material component manufacturing method includes a molding step of applying, by a pressing device, heat and pressure to a prepreg to mold the prepreg, and a transfer step of transferring the prepreg. The transfer step includes moving the prepreg together with the pressing device in a state in which a pressing force is applied to the prepreg by the pressing device.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.

Abstract: This disclosure is related to a method for applying insulative coating to a carbon-fiber exposed end of a composite material part using a dispenser device. The dispenser device includes a nozzle discharging a first material or a mixed material obtained by mixing the first material and a second material. The method includes discharging the first material or the mixed material from the nozzle toward the carbon-fiber exposed end, and applying the first material or the mixed material to the carbon-fiber exposed end such that the carbon-fiber exposed end is covered with the insulative coating.

Abstract: A composite material component manufacturing method including a first thermoforming step for creating a first three-dimensional prepreg sheet by thermoforming a thermoplastic first prepreg sheet into a three dimensional shape, a laminate body creating step for creating a prepreg sheet laminate body by layering the first three-dimensional prepreg sheet and a second prepreg sheet; and a laminate body molding step for molding the prepreg sheet laminate body by applying heat and a pressing force to the prepreg sheet laminate body with a pressing device.

Abstract: This disclosure is related to a method for applying insulative coating to a carbon-fiber exposed end of a composite material part using a dispenser device. The dispenser device includes a nozzle discharging a first material or a mixed material obtained by mixing the first material and a second material. The method includes discharging the first material or the mixed material from the nozzle toward the carbon-fiber exposed end, and applying the first material or the mixed material to the carbon-fiber exposed end such that the carbon-fiber exposed end is covered with the insulative coating.

Abstract: A resin composition comprises: a modified EVOH (A) that is represented by a following formula (I), has contents (mol %) of a, b, and c based on the total monomer units satisfying following formulae (1) through (3), and has a degree of saponification (DS) defined by a following formula (4) of 90 mol % or more; and inorganic oxide particles (B), wherein a content of the inorganic oxide particles (B) is from 5 to 5000 ppm. Such a resin composition is improved in adhesion to a resin other than EVOH, secondary processability, and flexibility without decreasing the performances originally possessed by EVOH, such as gas barrier properties, transparency, flavor retention, solvent resistance, and oil resistance. Accordingly, the resin is preferably used as a molded article, a film, a sheet, a heat shrinkable film, a thermoformed article, a multilayer structure, a coinjection stretch blow molded container, a fuel container, and the like. 18?a?55??(1) 0.01?c?20??(2) [100?(a+c)]×0.

Abstract: A hot-water sterilized package includes a container having a barrier layer filled with contents, wherein the barrier layer contains 96 mass % or more of a modified ethylene-vinyl alcohol copolymer based on the resin total, the modified ethylene-vinyl alcohol copolymer is represented by a following formula (I), contents (mol %) of a, b, and c based on the total monomer units satisfy following formulae (1) through (3), a degree of saponification (DS) defined by a following formula (4) is 90 mol % or more, and in measurement using a differential scanning calorimeter (DSC), crystalline melting enthalpy (?HA: J/g) during temperature rise in a hydrated state and crystalline melting enthalpy (?HB: J/g) during temperature rise after drying and melting followed by rapid cooling satisfy following formulae (5) and (6). A container constituting such a package has excellent in oxygen barrier properties even after hot-water sterilization, and thus degradation of content quality is inhibited for a long period.

Abstract: A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.

Abstract: A resin composition superior in stability and external appearance characteristics during/following melt molding; and an extrusion-molded article, an injection-molded article and a blow-molded article that are formed from the resin composition are provided. The resin composition contains an ethylene-vinyl alcohol copolymer as a principle component, and has a heterogeneous nucleation index (f) of less than 0.6 as determined by formula (1) based on a differential scanning calorimetry (DSC) curve obtained by DSC in which the resin composition is cooled at a rate of 150° C./sec from a molten state at 210° C. In the formula (1), Qtotal represents an area of a total region surrounded by the DSC curve and a base line, and Qhetero represents an area of a heterogeneous region that is a part of the total region, falling within a range from the temperature lower than the melting point by 38° C. to a temperature lower than the melting point by 75° C.

Abstract: An electronic module is provided with a circuit board including a central-axis insertion hole and composed by laminating a multitude of wiring layers; and a core formed of a magnetic material and inserted through the central-axis insertion hole, wherein the circuit board includes a plurality of coil wiring patterns formed in positions of the respective wiring layers surrounding the core insertion hole; and edge-face through-holes formed on inner wall surfaces of the central-axis core insertion hole to electrically connect the plurality of coil wiring patterns to form a coil, the central-axis insertion hole has a octagon shape in plan view, concave portions are disposed on the inner wall surfaces corresponding to sides of the octagon shape, and the edge-face through-holes are formed in the concave portions.

Abstract: The present invention relates to a polyether compound having a halogen atom content of 0.1000% by mass or less in terms of a polymer molecule thereof as measured by combustion ion chromatography and a weight average molecular weight (Mw) of 140,000 or more and 1,000,000 or less.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.

Abstract: A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.

Abstract: A resin composition comprising a modified ethylene-vinyl alcohol copolymer (A) and an unmodified ethylene-vinyl alcohol copolymer (B), wherein the modified ethylene-vinyl alcohol copolymer (A) is represented by a following formula (I), contents (mol %) of a, b, and c based on the total monomer units satisfy following formulae (1) to (3), and a degree of saponification is not less than 80 mol %, thereby providing a resin composition that is excellent in a barrier property, impact resistance, and secondary processability and moreover excellent in productivity. 18?a?55??(1) 0.01?c?20??(2) [100?(a+c)]×0.9?b?[100?(a+c)]??(3).