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    Multilayer core molding method
    2.
    发明授权
    Multilayer core molding method 有权

    公开(公告)号：US12179394B2

    公开(公告)日：2024-12-31

    申请号：US18164614

    申请日：2023-02-06

    Applicant: BRIDGESTONE SPORTS CO., LTD.

    Inventor： Kazunori Nakajima ,  Satoru Judai

    IPC: B29C43/18 ,  B29C43/20 ,  B29C43/58 ,  B29C43/36 ,  B29L31/54

    Abstract: A multilayer core molding method includes: an upstream process of obtaining an intermediate molded body 33; and a downstream process of performing molding using a downstream process molding apparatus 2, and wherein the downstream process includes: an intermediate molded body arrangement step of arranging the intermediate molded body on the intermediate plate cavity surface or the first downstream process mold cavity surface; and a first vulcanization step, performed after the intermediate molded body arrangement step, of vulcanization-molding the intermediate molded body until it is substantially or completely vulcanized, in a state in which at least the first downstream process mold and the intermediate plate are closed against each other.

    Method for producing a cellulose product
    3.
    发明授权
    Method for producing a cellulose product 有权

    公开(公告)号：US12138830B2

    公开(公告)日：2024-11-12

    申请号：US18210533

    申请日：2023-06-15

    Applicant: PulPac AB

    Inventor： Linus Larsson ,  Ove Larsson

    IPC: B29C43/20 ,  B29C43/18 ,  B29C51/00 ,  B29K1/00 ,  B29K23/00 ,  B29K67/00 ,  B29K77/00 ,  B29K101/12 ,  B29K309/00

    Abstract: A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100° C. to 300° C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.

    Process for moulding and relative machine for moulding
    6.
    发明授权
    Process for moulding and relative machine for moulding 有权

    公开(公告)号：US12103208B2

    公开(公告)日：2024-10-01

    申请号：US17788753

    申请日：2020-12-28

    Applicant: PERSICO S.P.A.

    Inventor： Sergio Battista Gastaldi

    IPC: B29C44/08 ,  B29C43/14 ,  B29C43/18 ,  B29C43/36 ,  B29C43/52 ,  B29K101/12

    CPC classification number: B29C43/52 ,  B29C43/18 ,  B29C43/36 ,  B29K2101/12 ,  B29K2713/00

    Abstract: Process and relative machine for moulding a thermoplastic material for producing a finished article having a shape, wherein the process comprises:



    providing a mould (99) comprising a first (1) and a second half-mould (2) each having a respective conformation surface (3, 4) which define, with closed mould, a cavity (5) having, in a conformation configuration, the shape;
    making a semi-finished product (70) made of the thermoplastic material;
    closing the mould (99) with the semi-finished product (70) interposed between the conformation surfaces (3, 4);
    admitting a heating fluid into the cavity (5) for heating the semi-finished product (70) permeable to the heating fluid;
    arranging the cavity (5) in a compacting configuration in which the cavity (5) coincides with a sub-portion of the cavity (5) in the conformation configuration;
    with the cavity (5) in the compacting configuration and the heating fluid into the cavity (5), compressing the semi-finished product (70) between the conformation surfaces (3, 4);
    subsequently to compressing the semi-finished product (70), arranging the cavity (5) in the conformation configuration while keeping the heating fluid into the cavity (5), wherein the semi-finished product (70) elastically expands for completely occupying the cavity and assuming the shape;
    subsequently, evacuating the heating fluid from the cavity (5) for cooling the semi-finished product (70) for obtaining the finished article with the shape;
    opening the mould (99) and extracting the finished article from the mould (99).

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