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    SEMI-CRYSTALLINE POLYAMIDE COMPOSITION WITH HIGH GLASS TRANSITION TEMPERATURE FOR COMPOSITE MATERIAL, PROCESS FOR MANUFACTURING SAME AND USES THEREOF
    11.
    发明申请
    SEMI-CRYSTALLINE POLYAMIDE COMPOSITION WITH HIGH GLASS TRANSITION TEMPERATURE FOR COMPOSITE MATERIAL, PROCESS FOR MANUFACTURING SAME AND USES THEREOF 审中-公开

    公开(公告)号：US20190338074A1

    公开(公告)日：2019-11-07

    申请号：US16512438

    申请日：2019-07-16

    Applicant: Arkema France

    Inventor： Mathieu CAPELOT ,  Gilles HOCHSTETTER

    IPC: C08G69/36 ,  C08G69/26 ,  C08L77/06 ,  C08G69/28 ,  C08K7/02 ,  C08J5/24

    Abstract: The invention relates to a composition for thermoplastic composite material comprising: 30% to 60% by volume, preferentially 35% to 50% by volume, of a thermoplastic matrix comprising from 50% to 100% by weight of a semi-crystalline polyamide polymer and from 0% to 50% by weight of at least one additive and/or of at least one other polymer, 40% to 70% by volume, preferentially 50% to 65% by volume, of long reinforcing fibers (or of long fibrous reinforcement), said thermoplastic matrix impregnating said long reinforcing fibers (or said long fibrous reinforcement), said semi-crystalline polyamide polymer being a nonreactive composition of at least one polyamide polymer, said composition being that of said thermoplastic matrix defined above, and said reactive polyamide prepolymer of the composition a) and said polyamide polymer of the composition b) comprising or consisting of at least one BACT/XT copolyamide.

    METHOD FOR THE OPEN-MOLD PRODUCTION OF A FIBER-REINFORCED SEMI-CRYSTALLINE POLYAMIDE MATRIX COMPOSITE MATERIAL FROM A PREPOLYMER REACTIVE PRECURSOR COMPOSITION
    12.
    发明申请
    METHOD FOR THE OPEN-MOLD PRODUCTION OF A FIBER-REINFORCED SEMI-CRYSTALLINE POLYAMIDE MATRIX COMPOSITE MATERIAL FROM A PREPOLYMER REACTIVE PRECURSOR COMPOSITION 审中-公开

    公开(公告)号：US20180223057A1

    公开(公告)日：2018-08-09

    申请号：US15579968

    申请日：2016-06-23

    Applicant: ARKEMA FRANCE

    Inventor： Mathieu CAPELOT ,  Gilles HOCHSTETTER

    IPC: C08J5/06 ,  C08G69/26 ,  C08G69/36 ,  C08L77/06

    Abstract: Method for open-mold production of a semi-crystalline thermoplastic polyamide matrix fiber-reinforced composite. The matrix has Tg>80° C. and Tf between 280° C. and 200° C. The matrix is prepared in-situ by molten state bulk polycondensation of a reactive precursor composition including A: a first polyamide prepolymer A1 each carrying two identical functions and a second polyamide prepolymer A2 each carrying two identical functions different from and coreactive with those of A1. The reactive precursors may alternatively include B: a prepolymer carrying (on the same chain) two different functions coreactive with each other. The reactive precursors may alternatively include a precursor composition that is a mixture of (A+B). The method involves successive steps of i) preparing the reactive mixture, ii) continuously coating the fibers by deposition-impregnation with the reactive mixture, iii) in-situ bulk polycondensation in an open heated die, and iv) cooling the composite.

    Tube comprising a pultruded cylindrical element
    14.
    发明申请
    Tube comprising a pultruded cylindrical element 有权

    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

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

    IPC: F16L9/12 ,  B29D23/00 ,  B29K77/00 ,  B29K105/08 ,  B29K309/08

    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.

    MULTILAYER STRUCTURE FOR TRANSPORTING OR STORING GAS OR FOR EXPLOITING OFFSHORE OIL DEPOSITS UNDER THE SEA
    17.
    发明申请
    MULTILAYER STRUCTURE FOR TRANSPORTING OR STORING GAS OR FOR EXPLOITING OFFSHORE OIL DEPOSITS UNDER THE SEA 有权

    公开(公告)号：US20220243843A1

    公开(公告)日：2022-08-04

    申请号：US17629130

    申请日：2020-07-28

    Applicant: Arkema France

    Inventor： Gilles HOCHSTETTER

    IPC: F16L9/16 ,  F16L9/147 ,  B29C63/00 ,  B29C63/34 ,  B29C48/152

    Abstract: A multilayer structure for transporting or storing gas or for exploiting oil or gas deposits under the sea, 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 of a composition including at least one semi-crystalline thermoplastic polymer, the Tm of which is less than 280° C., wherein at least one of the composite reinforcing layers of a fibrous material in the form of continuous fibers impregnated with a composition including at least one thermoplastic polymer, the thermoplastic polymer having a Tg greater than the maximum temperature of use of the structure (Tu), with Tg≥Tu+20° C., Tu being greater than 50° C., and a multilayer structure selected from a reservoir, a pipe or a tube for transporting or storing hydrogen being excluded.

    METHOD FOR IMPREGNATING A FIBROUS MATERIAL IN AN INTERPENETRATED FLUIDIZED BED
    18.
    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.

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