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.

    TANK FOR STORING GAS
    4.
    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 OF MANUFACTURING A FIBROUS MATERIAL PREIMPREGNATED WITH THERMOPLASTIC POLYMER USING AN AQUEOUS DISPERSION OF POLYMER
    6.
    发明申请
    METHOD OF MANUFACTURING A FIBROUS MATERIAL PREIMPREGNATED WITH THERMOPLASTIC POLYMER USING AN AQUEOUS DISPERSION OF POLYMER 审中-公开
    使用聚合物的水分散体制备用热塑性聚合物预处理的纤维材料的方法

    公开(公告)号:US20160347009A1

    公开(公告)日:2016-12-01

    申请号:US15117312

    申请日:2015-02-11

    Applicant: ARKEMA FRANCE

    Abstract: A method of manufacturing a pre-impregnated fibrous material produced as a plurality of unidirectional parallel tapes, said method including the following steps: i) impregnation of the fibrous material while it is in the form of several parallel rovings, said impregnation step including: ia) immersion in a bath containing an aqueous dispersion of thermoplastic polymer, said immersion being followed by ib) drying, then ii) shaping by calendering, using at least one heated calender, into the form of a plurality of unidirectional parallel tapes using said calender including a plurality of calendering grooves according to the number of said tapes and with a pressure and/or separation between the rolls of said calender regulated by a control system.

    Abstract translation: 一种制造作为多个单向平行带的预浸渍纤维材料的方法,所述方法包括以下步骤:i)当纤维材料以几个平行粗纱的形式浸渍时,所述浸渍步骤包括: )浸入含有热塑性聚合物的水性分散体的浴中,所述浸渍之后是ib)干燥,然后ii)使用所述压延机使用至少一个加热的压延机通过压延成形为多个单向平行带的形式,包括 根据所述带的数量和由控制系统调节的所述压延机的辊之间的压力和/或分离的多个压延槽。

    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.

    FLAME RETARDANT POLYAMIDE COMPOSITIONS, USES OF SAME AND PROCESSES FOR THE PREPARATION THEREOF

    公开(公告)号:US20240376264A1

    公开(公告)日:2024-11-14

    申请号:US18286048

    申请日:2022-03-31

    Applicant: ARKEMA FRANCE

    Abstract: A composition for a thermoplastic composite material including: a) from 65% to 95% by weight of at least one reactive semicrystalline polyamide prepolymer with an average molar mass Mn of less than 5000 g/mol and having a volume-mean diameter D50 of the reactive semicrystalline polyamide prepolymer powder particles ranging from 10 to 300 μm, b) from 5% to 35% by weight of at least one flame retardant chosen from an at least partially meltable flame retardant in powder form and having a volume-mean diameter D50 of from 10 to 300 μm, and a non-meltable flame retardant in premilled powder form with a volume-mean diameter D50 of from 1 to 50 μm, and c) from 0 to 2% by weight of at least one additive, and said reactive polyamide prepolymer comprising or consisting of at least one Z/BACT/XT copolyamide.

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