METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIAL

    公开(公告)号:US20200079917A1

    公开(公告)日:2020-03-12

    申请号:US16611344

    申请日:2018-04-05

    IPC分类号: C08J5/04 B29C70/44

    摘要: Provided is a method for producing a fiber-reinforced composite material exhibiting high heat resistance and excellent appearance quality. It is a method for producing a fiber-reinforced composite material, which includes disposing a prepreg containing a reinforced fiber being impregnated with an epoxy resin composition in a mold, pressurizing and heating the prepreg at 0.2 to 2.5 MPa and 130° C. to 200° C. as primary curing, and then further heating the prepreg at 210° C. to 270° C. for 10 minutes or more as secondary curing.

    FILTRATION APPARATUS AND OPERATION METHOD THEREFOR

    公开(公告)号:US20220111335A1

    公开(公告)日:2022-04-14

    申请号:US17417517

    申请日:2019-12-25

    IPC分类号: B01D61/22 B01D65/02

    摘要: 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.

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

    公开(公告)号:US10696805B2

    公开(公告)日:2020-06-30

    申请号:US15580375

    申请日:2016-06-22

    摘要: 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° C. or higher.

    EPOXY RESIN COMPOSITION, FIBER REINFORCED COMPOSITE MATERIAL, MOLDED ARTICLE, AND PRESSURE VESSEL

    公开(公告)号:US20180186946A1

    公开(公告)日:2018-07-05

    申请号:US15580375

    申请日:2016-06-22

    摘要: 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° C. or higher.

    EPOXY RESIN COMPOSITION, FIBER REINFORCED COMPOSITE MATERIAL, MOLDED ARTICLE AND PRESSURE VESSEL

    公开(公告)号:US20200239649A1

    公开(公告)日:2020-07-30

    申请号:US16848507

    申请日:2020-04-14

    摘要: 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° C. or higher.

    EPOXY RESIN COMPOSITION, FIBER REINFORCED COMPOSITE MATERIAL, MOLDED ARTICLE AND PRESSURE VESSEL

    公开(公告)号:US20200239648A1

    公开(公告)日:2020-07-30

    申请号:US16848501

    申请日:2020-04-14

    摘要: 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° C. or higher.