TANK FOR STORING GAS
    1.
    发明申请

    公开(公告)号:US20250027607A1

    公开(公告)日:2025-01-23

    申请号:US18708442

    申请日:2022-11-08

    Abstract: A tank comprising a multi-layer structure, for storing compressed gas, including in succession from inside to outside at least the three following layers: at least one sealing layer of a composition including at least one semi-crystalline thermoplastic polyamide having a Tm of less than or equal to 280° C., at least one intermediate composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one semi-crystalline thermoplastic polyamide having a Tg of less than 100° C., at least one outer composite reinforcing layer of a fibrous material in the form of continuous fibres impregnated with a composition including at least one polyphthalamide having a Tg of greater than 80° C., the outermost sealing layer being welded to the innermost intermediate composite reinforcing layer and the outermost intermediate composite reinforcing layer being welded to the innermost outer composite reinforcing layer.

    METHOD FOR MANUFACTURING A FIBROUS MATERIAL PRE-IMPREGNATED WITH THERMOPLASTIC POLYMER IN A FLUIDISED BED

    公开(公告)号:US20220063137A1

    公开(公告)日:2022-03-03

    申请号:US17415073

    申请日:2019-12-16

    Applicant: ARKEMA FRANCE

    Abstract: Method for manufacturing a material including a fibrous material with continuous fibres and a thermoplastic polymer matrix, the material being produced as a unidirectional band, the method including a step of pre-impregnation of a strand of the fibrous material by the matrix in powdered form, the pre-impregnation step being carried out in a fluidised bed including a grooved roller component, the strand being in contact with the surface of the roller component and including up to 0.1% by weight of sizing, the matrix rate being controlled by controlling the dwell time in the powder and by constantly controlling the tension of the strand when it is introduced into the fluidised bed.

    Tube comprising a pultruded cylindrical element

    公开(公告)号:US20250003530A1

    公开(公告)日:2025-01-02

    申请号:US18292805

    申请日:2022-07-27

    Applicant: ARKEMA FRANCE

    Abstract: A tube including at least one cylindrical element made of a pultruded fibrous material impregnated with a thermoplastic matrix, at least one additional fibrous reinforcement, partially or completely surrounding the cylindrical element(s), the fibers contained in the additional fibrous reinforcement being positioned along an axis different from the longitudinal axis of the cylindrical element, the total content of fibers of the tube being of between 40% and 70% by volume, with respect to the volume of the matrix and of the fibers contained in the tube.

    METHOD FOR IMPREGNATING A FIBROUS MATERIAL IN AN INTERPENETRATED FLUIDIZED BED

    公开(公告)号:US20220016807A1

    公开(公告)日:2022-01-20

    申请号:US17296651

    申请日:2019-11-25

    Applicant: Arkema France

    Abstract: Manufacture of a pre-impregnated fibrous material which contains continuous fibers and a thermoplastic matrix, the material being made as a plurality of unidirectional parallel ribbons or sheets, and the method involving a step of pre-impregnating, in dry conditions, N parallel strands divided into X groups of Ni strands, by the thermoplastic matrix in powder form in a tank, ΣNi=N et X 3, one thereof from each series being immersed in the powder, each group of strands running on the same number Y of tensioning parts, and the parallel strands being separated by a spacing at least equal to the width of each strand.

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