Mitsubishi Chemical Corporation

Mitsubishi Electric Corporation

Mistubishi Chemical Corporation

Keigo Yoshida

Atsushi Takahashi

Takahiro Hayashi

Takeshi Ishikawa

Takayuki Kobayashi

Takuya Teranishi

Masao Tomioka

Saki Fujita

Kenichi Watanabe

Akinobu Sasaki

Hiroshi Tategaki

Morio Katagiri

Masahiro Oosuka

Naoki Sugiura

Shinichiro Tsudaka

Masahiro Hata

Mitsunobu Yoshinaga

Kouki Wakabayashi

Tadahiro Nishimoto

Shuuichi Nakamura

Kazuyuki Terada

Shigekazu Takeda

A pressure vessel including: a cylindrical straight body section and dome sections provided at both ends of the body section, where: the body section and the dome sections are composed of a resin main body, and an outer shell made of a fiber reinforced resin material, the outer shell being on the outside of the main body; each of dome sections has pinch-off regions extending from a tip of the dome section toward the body section; and when an end of each of the pinch-off regions opposite to the tip of the dome section is located in a region where a distance from the tip of the dome section to the end of each of the pinch-off regions opposite to the tip of the dome section in the axial direction of the straight body section is less than a distance from the tip of each of the dome sections to a boundary between the straight body section of the main body and each of the dome sections in the axial direction of the straight body section.

Pressure vessel

The present invention can ensure a large capacity while curbing enlargement of occupancy space or quality degradation due to unstable winding of a fiber-reinforced resin material. A pressure container () is provided with: a container body (); and a cylindrical straight body part () and a hemispherical dome part () which are formed of an outer shell () made of a fiber-reinforced resin material, wherein, in a cross-section of the dome part () taken along the central axis of the straight body part (), the shape of the outer surface () of the dome part () of the container body () is a curved shape that falls within the range of ellipse A and ellipse B when the outside diameter of the straight body part () of the container body () is defined as 2a. The ellipse A is an ellipse that satisfies b/a=0.55, where the major axis thereof is defined as a straight line k connecting boundary points p between the straight body part () and the outer surface () of the dome part () of the container body (), the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b. The ellipse B is an ellipse that satisfies b/a=0.70, where the major axis thereof is defined as the straight line k, the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b.

Pressure container and container body

Provided are a carbon fiber thermoplastic resin prepreg which is a carbon fiber prepreg obtained by impregnating a PAN-based carbon fiber in which the average fiber fineness of a single fiber is 1.0 dtex to 2.4 dtex with a thermoplastic resin, wherein the thermoplastic resin satisfies 20&#x2264;(FM/FS)&#x2264;40 (where FM: flexural modulus (MPa) of a resin sheet comprising only the thermoplastic resin, and FS: flexural strength (MPa) of the resin sheet), a method for manufacturing the same, and a carbon fiber composite material employing the carbon fiber prepreg.

Carbon fiber thermoplastic resin prepreg, carbon fiber composite material and producing method

This test device for a monitoring control device includes an input/output controller, a logic controller, a logic connector, a logic executing simulator, a test target indication unit, an apparatus characteristic receiver, a logic managing simulator, and a logic connection information generator. Using an apparatus characteristic obtained by the apparatus characteristic receiver, the logic managing simulator specifies a simulation logic appropriate for a control logic on the basis of a simulation logic management rule. The logic connector connects the control logic and the simulation logic, by using logic connection information generated on the basis of a logic connection rule.

Test device for monitoring control device

The present invention provides: a carbon fiber sizing agent that can obtain a carbon fiber bundle having a superior effect of improving mechanical properties when composited using a resin; an aqueous dispersion thereof; a carbon fiber bundle; a sheet-shaped article having a carbon fiber bundle; and a composite material. The carbon fiber sizing agent contains: a compound (A) that is an ester of an unsaturated monobasic acid and an epoxy compound having a plurality of epoxy groups in the molecule, and that has at least one epoxy group in the molecule; a urethane acrylate oligomer (B) that is bifunctional and that has a tensile elongation rate of the cured product of at least 40%; and a polyurethane resin (C) having a tensile elongation rate of a dried coating film of 350-900% inclusive. The amounts of A-C contained satisfy the conditions described in the description. The aqueous dispersion disperses the sizing agent. The carbon fiber bundle contains 0.6-3.0 mass % inclusive of the sizing agent. The sheet-shaped article and a pultruded composite material contain the carbon fiber bundle. The composite material contains the sheet-shaped article.

Carbon fiber sizing agent, aqueous dispersion thereof, carbon fiber bundle applied with sizing agent, sheet-like article comprising carbon fiber bundle, and carbon fiber reinforced composite material

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Tokyo, Japan

Keigo Yoshida