COMPOSITE MATERIAL AND MOLDED COMPOSITE MATERIAL

    公开(公告)号:US20210221934A1

    公开(公告)日:2021-07-22

    申请号:US15734328

    申请日:2019-06-05

    Inventor: Masaki Takeuchi

    Abstract: A composite material obtained by impregnating a fibrous filler to which a hydrocarbon-based resin is attached with a polymerizable composition containing a cycloolefin monomer and a metathesis polymerization catalyst is provided. According to the present invention, it is possible to provide a composite material which has no impregnation unevenness and can give a composite material molded article having excellent strength.

    METHOD FOR MANUFACTURING COMPOSITE MATERIAL MOLDING

    公开(公告)号:US20190210305A1

    公开(公告)日:2019-07-11

    申请号:US16099275

    申请日:2017-05-17

    Inventor: Masaki Takeuchi

    Abstract: A method for producing a composite material molded article, including laminating a fibrous filler on a mold; pressure-reducing inside an airproof space, the airproof space being formed with the mold laminated with the fibrous filler and an airproof film covering thereon; and impregnating a resin material in the fibrous filler, the formation of the airproof space including bonding the mold and the airproof film with a seal material containing a (meth)acrylic polymer as an adhesive. The composite resin molded article obtained by the method of the present invention can be suitably used in fields in which composite materials of fibrous fillers such as glass fibers and carbon fibers are generally used, for example, housings, structural members, and the like for moving objects or movable objects.

    POLYMERIZABLE COMPOSITION AND COMPOSITE MATERIAL

    公开(公告)号:US20190031846A1

    公开(公告)日:2019-01-31

    申请号:US16069288

    申请日:2017-01-16

    Inventor: Masaki Takeuchi

    Abstract: The present invention relates to polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, a diisocyanate compound, and a polyfunctional (meth)acrylate compound. The composite material produced by using a polymerizable composition of the present invention has excellent mechanical strength and does not cause odor.

    Method for producing composite molded article

    公开(公告)号:US10351682B2

    公开(公告)日:2019-07-16

    申请号:US15106731

    申请日:2014-12-17

    Inventor: Masaki Takeuchi

    Abstract: The present invention relates to a method for producing a composite molded article having a flexural modulus at 150° C. of 25% or more of a flexural modulus at 23° C., including the steps of (1) placing glass fibers in a mold; (2) impregnating glass fibers with a polymerizable composition containing a cycloolefin monomer, a metathesis polymerization catalyst, a radical generator, and a compound represented by the general formula (I); (3) subjecting the above polymerizable composition with which the glass fibers are impregnated to a bulk polymerization to provide a composite molded article; and (4) demolding the composite molded article; and a composite molded article obtained by the above method. According to the method of the present invention, a composite molded article containing glass fibers, the composite molded article having excellent mechanical strength can be produced.

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