Thermoplastic prepreg based foam product

    公开(公告)号:US11938691B2

    公开(公告)日:2024-03-26

    申请号:US17979104

    申请日:2022-11-02

    申请人: JOHNS MANVILLE

    摘要: A system for manufacturing a thermoplastic prepreg product includes a belt or conveyor, a prepreg applicator that positions a thermoplastic prepreg atop the belt or conveyor, a foam applicator that applies a foam mixture atop the thermoplastic prepreg, a heating mechanism that heats the thermoplastic prepreg and the foam mixture to cause the foam mixture to react atop the thermoplastic prepreg, and a laminator that is configured to press the thermoplastic prepreg and foam mixture to control a thickness of the resulting thermoplastic prepreg product. The thermoplastic prepreg includes a fabric, mat, or web of fibers and a thermoplastic material that is impregnated within the fabric, mat, or web of fibers. The thermoplastic material is formed from in situ polymerization of monomers and oligomers. The foam mixture includes an isocyanate, a polyol blend, and a blowing agent.

    COMPOSITE CONNECTORS AND METHODS OF MANUFACTURING THE SAME

    公开(公告)号:US20240060582A1

    公开(公告)日:2024-02-22

    申请号:US18498475

    申请日:2023-10-31

    摘要: A method of manufacturing a composite (e.g. fibre-reinforced polymer) connector for a fluid transfer conduit comprises: manufacturing a tubular pre-form which extends substantially parallel to a central axis C, the tubular pre-form comprising continuous circumferentially-oriented fibre reinforcement; manufacturing a continuous fibre pre-form net, the pre-form net comprising a support layer and continuous fibre reinforcement, the continuous fibre reinforcement being secured by being stitched to the support layer; placing the tubular pre-form and the pre-form net together into a mould to form a tubular hub portion from the tubular pre-form and a flange portion from the pre-form net, the flange portion extending from the hub portion at an angle to the central axis C; and introducing polymer into the mould so as to form a composite connector comprising the flange portion and the hub portion.

    PICKLEBALL RACKET AND ITS PREPARATION METHOD

    公开(公告)号:US20240024745A1

    公开(公告)日:2024-01-25

    申请号:US17897247

    申请日:2022-08-29

    申请人: Liuzhou ZHOU

    发明人: Liuzhou ZHOU

    摘要: Disclosed are a pickleball racket and its preparation method. The pickleball racket includes a racket body and a handle. The handle is connected to one side of the racket body. The racket body sequentially includes, from top to bottom, an upper panel, a lower panel and an inner composite panel sandwiched between the upper panel and the lower panel. The inner composite panel is formed by bonding an upper honeycomb panel, a shock absorption layer and a lower honeycomb panel sequentially from top to bottom. The upper and lower honeycomb panels are each provided with a honeycomb structure. The upper and lower panels are integrally formed by high-temperature molding and evenly wrap the outer side of the inner composite panel. An edge wrapping strip is evenly arranged between a side edge of the inner composite panel and the upper panel and between the side edge and the lower panel.