Toray Industries, Inc.

Ayumi Mori

Noriyuki Hirano

Masayuki Miyoshi

Toshiya Kamae

Kentaro Sano

Atsushi Kobayashi

Kentaro Kobayashi

Taiki Kuroda

The present invention relates to a filtration device including: a flow rate control unit; a separation membrane module; a liquid flow rate detection unit detecting a liquid flow rate at a freely-selected part; and an external control unit controlling a state of the flow rate control unit, in which the external control unit includes: a target range setting step of setting a target flow rate range A; a control state recording step of recording a state S of the flow rate control unit when the liquid flow rate at the freely-selected part first enters within the target flow rate range A; a state setting step of setting the flow rate control unit to the state S; and a flow rate controlling step of controlling the liquid flow rate to be within the target flow rate range A.

Filtration apparatus and operation method therefor

One purpose of the present invention is to provide an epoxy resin composition which is for obtaining a fiber-reinforced composite material that combines heat resistance with tensile strength on a high level. Another purpose is to provide: a fiber-reinforced composite material obtained using this epoxy resin composition; and a molded article and a pressure vessel both containing the fiber-reinforced composite material. The present invention has the following configuration in order to achieve the above purposes. Namely, the epoxy resin composition includes the constituent element [A]: An epoxy resin including an aromatic ring and having a functionality of 2 or higher and the following constituent element [B]: An amine-based hardener, and is characterized in that a cured object obtained by curing the epoxy resin composition has a rubber-state modulus of 10 MPa or less when evaluated for dynamic viscoelasticity and the cured object has a glass transition temperature of 95&#xb0; C. or higher.

Epoxy resin composition, fiber reinforced composite material, molded article and pressure vessel

One purpose of the present invention is to provide an epoxy resin composition which is for obtaining a fiber-reinforced composite material that combines heat resistance with tensile strength on a high level. The other purpose is to provide: a fiber-reinforced composite material obtained using this epoxy resin composition; and a molded article and a pressure vessel both containing the fiber-reinforced composite material. The present invention has the following configuration in order to achieve the above purposes. Namely, the epoxy resin composition includes the constituent element [A]: An epoxy resin including an aromatic ring and having a functionality of 2 or higher and the following constituent element [B]: An acid anhydride-based hardener, and is characterized in that a cured object obtained by curing the epoxy resin composition has a rubber-state modulus of 10 MPa or less when evaluated for dynamic viscoelasticity and the cured object has a glass transition temperature of 95&#xb0; C. or higher.

Provided is a fiber-reinforced composite material exhibiting high heat resistance and excellent appearance quality. is the composite material is based on an epoxy resin composition which contains constituents [A], [B], and [C] and satisfies conditions (i) and (ii):

Epoxy resin composition, prepreg, fiber-reinforced composite material, and method for producing same

One purpose of the present invention is to provide an epoxy resin composition which is for obtaining a fiber-reinforced composite material that combines heat resistance with tensile strength on a high level. The other purpose is to provide: a fiber-reinforced composite material obtained using this epoxy resin composition; and a molded article and a pressure vessel both containing the fiber-reinforced composite material. The present invention has the following configuration in order to achieve the above purposes. Namely, the epoxy resin composition includes the constituent element [A]: An epoxy resin including an aromatic ring and having a functionality of 2 or higher and the following constituent element [B]: An amine-based hardener or an acid anhydride-based hardener, and is characterized in that a cured object obtained by curing the epoxy resin composition has a rubber-state modulus of 10 MPa or less when evaluated for dynamic viscoelasticity and the cured object has a glass transition temperature of 95&#xb0; C. or higher.

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Ehime, Japan

Ayumi Mori