FIBER SIZING AGENT, FIBER MATERIAL, MOLDING MATERIAL, AND MOLDED ARTICLE

    公开(公告)号:US20210372040A1

    公开(公告)日:2021-12-02

    申请号:US17291418

    申请日:2019-11-07

    申请人: DIC Corporation

    摘要: Provided is a fiber sizing agent including a vinyl ester resin (A), an epoxy compound (B), and an aqueous medium. The vinyl ester resin (A) has an alkoxy polyoxyalkylene structure and a urethane linkage. The fiber sizing agent exhibits excellent binding ability for various fibers, such as glass fibers and carbon fibers. Molded articles produced from a molding material including the fiber sizing agent have various excellent physical properties, and examples of the physical properties include flexural strength, compressive strength, and interlaminar shear strength. Accordingly, the molded articles can be used, for example, in automotive parts, aircraft parts, windmill parts, industrial parts, and the like.

    REINFORCING FIBER BUNDLE
    96.
    发明申请

    公开(公告)号:US20200347522A1

    公开(公告)日:2020-11-05

    申请号:US16963089

    申请日:2019-01-17

    IPC分类号: D02G3/24 D06M15/55 D06M15/59

    摘要: A reinforcing fiber bundle is a continuous reinforcing fiber bundle having a length of at least 1 m and is characterized by the number of monofilaments per unit width being at most 1,600/mm and the average number of fibers in the bundle being at most 1,000 in a region (I), and the drape level found in a region (II) being 120-240 mm. The continuous reinforcing fiber bundle has a length of at least 1 m and is characterized by the adhesion amount of a sizing agent (I) in the region (I) being 0.5-10% by weight and the drape level found in the region (II) being 120-240 mm. The continuous reinforcing fiber bundle has superior mechanical properties, formability into complex shapes, and continuous producibility.