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    METHOD FOR IMPREGNATING A FIBROUS MATERIAL IN AN INTERPENETRATED FLUIDIZED BED
    11.
    发明申请
    METHOD FOR IMPREGNATING A FIBROUS MATERIAL IN AN INTERPENETRATED FLUIDIZED BED 有权

    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

    Inventor： Gilles HOCHSTETTER ,  Arthur Pierre BABEAU ,  Axel SALINIER ,  Thibaut SAVART

    IPC: B29B15/12 ,  B29B15/14

    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.

    MIXTURE OF NON-REACTIVE THERMOPLASTIC POLYMER AND REACTIVE THERMOPLASTIC POLYMER AND USE THEREOF FOR PREPARING COMPOSITES
    14.
    发明申请
    MIXTURE OF NON-REACTIVE THERMOPLASTIC POLYMER AND REACTIVE THERMOPLASTIC POLYMER AND USE THEREOF FOR PREPARING COMPOSITES 有权

    公开(公告)号：US20230080953A1

    公开(公告)日：2023-03-16

    申请号：US17798675

    申请日：2021-02-23

    Applicant: ARKEMA FRANCE

    Inventor： Thibaut SAVART ,  Lise DEVES ,  Gilles HOCHSTETTER

    IPC: C08J5/24 ,  B29B15/12 ,  C08L77/06

    Abstract: The use of a composition including a mixture of at least one non-reactive thermoplastic polymer of Tg >40° C., especially >100° C., in particular >120° C., and at least one reactive thermoplastic prepolymer, with a fibrous material, for the preparation of a fibrous material impregnated with the composition, the composition having an initial melt viscosity during the impregnation, as measured in plate-plate rheology under 1 Hz and 2% strain, at a temperature of 300° C., of less than the viscosity of the same composition devoid of reactive prepolymer, measured under the same conditions, and/or a ductility, after in situ polymerization of the reactive thermoplastic prepolymer in the composition during the impregnation and after the impregnation, that is at least equivalent to the ductility of the same composition devoid of non-reactive thermoplastic polymer, and of which said reactive thermoplastic prepolymer is polymerized to the same number-average molecular mass (Mn).

    MULTILAYER STRUCTURE FOR TRANSPORTING OR STORING HYDROGEN
    15.
    发明申请
    MULTILAYER STRUCTURE FOR TRANSPORTING OR STORING HYDROGEN 有权

    公开(公告)号：US20220258446A1

    公开(公告)日：2022-08-18

    申请号：US17628973

    申请日：2020-07-28

    Applicant: Arkema France

    Inventor： Gilles HOCHSTETTER ,  Patrick DANG ,  Thibaut SAVART

    IPC: B32B1/08 ,  F17C1/16 ,  B32B1/02 ,  B32B27/12 ,  B32B5/02 ,  B32B27/20 ,  B32B27/34 ,  B32B15/02 ,  B32B15/088 ,  C08L77/06

    Abstract: A multilayer structure selected from a reservoir, a pipe or a tube, for transporting, distributing or storing hydrogen, including, from the inside to the outside, at least one sealing layer and at least one composite reinforcing layer, the innermost composite reinforcing layer being welded to the outermost adjacent sealing layer, the sealing layers including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein the at least one thermoplastic polymer of each sealing layer may be the same or different, and at least one of the composite reinforcing layers being of a fibrous material in the form of continuous fibers impregnated with a composition of at least one thermoplastic polymer P2j, the thermoplastic polymer P2j having a Tg greater than the maximum temperature of use of said structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C.

    METHOD FOR MANUFACTURING A FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER
    16.
    发明申请
    METHOD FOR MANUFACTURING A FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER 审中-公开

    公开(公告)号：US20200223102A1

    公开(公告)日：2020-07-16

    申请号：US16623946

    申请日：2018-06-21

    Applicant: Arkema France

    Inventor： Gilles HOCHSTETTER ,  Mathieu CAPELOT ,  Thibaut SAVART ,  Arthur Pierre BABEAU ,  Denis HUZE ,  François TANGUY ,  Patrice GAILLARD

    IPC: B29B15/12 ,  B29C35/08

    Abstract: A method of manufacturing an impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer matrix, the method including pre-impregnating the fibrous material while it is in the form of a roving or several parallel rovings with the thermoplastic material and heating the thermoplastic matrix for melting, or maintaining in the molten state, the thermoplastic polymer after pre-impregnation, the at least one heating step being carried out by means of at least one heat-conducting spreading part (E) and at least one heating system, with the exception of a heated calendar, the roving or the rovings being in contact with part or all of the surface of the at least one spreading part (E) and partially or wholly passing over the surface of the at least one spreading part (E) at the level of the heating system.

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