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    MIXTURE OF NON-REACTIVE THERMOPLASTIC POLYMER AND REACTIVE THERMOPLASTIC POLYMER AND USE THEREOF FOR PREPARING COMPOSITES
    32.
    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
    33.
    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
    34.
    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.

    METHOD FOR IMPREGNATING NATURAL FIBRES WITH A POLYMER IN AQUEOUS DIPERSION AND USE OF SAID FIBRES IN COMPOSITE MATERIALS
    36.
    发明申请
    METHOD FOR IMPREGNATING NATURAL FIBRES WITH A POLYMER IN AQUEOUS DIPERSION AND USE OF SAID FIBRES IN COMPOSITE MATERIALS 审中-公开
    用水性聚合物浸渍天然纤维的方法和在复合材料中使用固体纤维

    公开(公告)号：US20170073484A1

    公开(公告)日：2017-03-16

    申请号：US15310463

    申请日：2015-05-07

    Applicant: ARKEMA FRANCE ,  DEHONDT TECHNOLOGIES

    Inventor： Quentin PINEAU ,  Gilles HOCHSTETTER ,  Marc AUDENAERT ,  Guy DEHONDT ,  Edouard PHILIPPE

    IPC: C08J5/24 ,  B29B15/12 ,  B29B13/06 ,  C08J5/04

    CPC classification number: C08J5/24 ,  B29B13/06 ,  B29B15/12 ,  B29B15/125 ,  B29B15/127 ,  B29K2077/00 ,  C08J5/045 ,  C08J2301/02 ,  C08J2377/06 ,  D06M15/227 ,  D06M15/263 ,  D06M15/277 ,  D06M15/507 ,  D06M15/564 ,  D06M15/59

    Abstract: A method for impregnating strands or strips of natural fibres, using the following successive steps: i) the impregnation of the strands or strips by immersion in a bath containing a fine aqueous polymer dispersion; followed by ii) the drying of the strands or strips using a heating system, with the progressive elimination of the water and the gradual melting of the polymer, and the coating of the strands or strips and the molten polymer incorporated into the core of the strands or strips as a binder between the fibres; iii) optionally, the forming of the treated strands or strips into their final shape; and iv) the cooling of the treated strands or strips. The aqueous polymer dispersion comprises at least one semi-crystalline or amorphous polymer and, in the case of an amorphous polymer, has a Tg varying between 50° C. and 175° C.

    Abstract translation: 使用以下连续步骤浸渍天然纤维的股线或条纹的方法：i）通过浸入含有精细聚合物水分散体的浴中浸渍所述股线或条带; 随后ii）使用加热系统干燥线或条，随着水的逐渐消除和聚合物的逐渐熔化，并且将线或条和熔合的聚合物涂覆到线的芯中 或作为纤维之间的粘合剂条带; iii）任选地，将经处理的股线或条带形成其最终形状; 和iv）处理过的股线或条的冷却。 含水聚合物分散体包含至少一种半结晶或无定形聚合物，在无定形聚合物的情况下，Tg在50℃和175℃之间变化。

    USE OF A FINE AQUEOUS POLYMER DIPERSION FOR THE IMPREGNATION OF NATURAL FIBRES
    37.
    发明申请
    USE OF A FINE AQUEOUS POLYMER DIPERSION FOR THE IMPREGNATION OF NATURAL FIBRES 有权
    使用精细水性聚合物浸渍自然纤维的方法

    公开(公告)号：US20170073480A1

    公开(公告)日：2017-03-16

    申请号：US15310626

    申请日：2015-05-07

    Applicant: ARKEMA FRANCE

    Inventor： Quentin PINEAU ,  Gilles HOCHSTETTER ,  Marc AUDENAERT

    IPC: C08J5/04 ,  B29B13/06 ,  B29B15/12

    CPC classification number: C08J5/045 ,  B29B13/06 ,  B29B15/12 ,  B29B15/122 ,  B29K2077/00 ,  C08J2375/04 ,  C08J2377/06

    Abstract: The use of an aqueous polymer dispersion including at least one amorphous polymer having a Tg varying between 55° C. and 175° C. or a semi-crystalline polymer having a melting point varying between 70° C. and less than 220° C., the weight concentration of the polymer in the dispersion varying between 5 and 50%, with the polymer particles having an average size of less than 10000 nm, as a binder for impregnating strands or strips of natural fibres, in particular flax fibres, with said polymer being incorporated in the core of the fibre bundle forming the strand or strip and thereby binding the fibres together.

    Abstract translation: 使用包含至少一种具有Tg在55℃和175℃之间的Tg的至少一种无定形聚合物的水性聚合物分散体或熔点在70℃和小于220℃之间变化的半结晶聚合物。 ，分散体中聚合物的重量浓度在5至50％之间变化，聚合物颗粒的平均尺寸小于10000nm，作为用于浸渍天然纤维，特别是亚麻纤维的股线或条带的粘合剂，所述粘合剂 聚合物结合在纤维束的芯中，形成线或条，从而将纤维结合在一起。

    THERMOPLASTIC COMPOSITION MADE FROM A POLYAMIDE POLYMER OBTAINED FROM A PREPOLYMER AND A CHAIN EXTENDER AND MANUFACTURING METHOD
    40.
    发明申请
    THERMOPLASTIC COMPOSITION MADE FROM A POLYAMIDE POLYMER OBTAINED FROM A PREPOLYMER AND A CHAIN EXTENDER AND MANUFACTURING METHOD 审中-公开
    来自预聚物和链延伸剂获得的聚酰胺聚合物的热塑性组合物和制造方法

    公开(公告)号：US20170037185A1

    公开(公告)日：2017-02-09

    申请号：US15304589

    申请日：2015-04-14

    Applicant: ARKEMA FRANCE

    Inventor： Thierry BRIFFAUD ,  Gilles HOCHSTETTER ,  Mathieu CAPELOT

    IPC: C08G69/26 ,  B29C45/00

    CPC classification number: C08G69/265 ,  B29C45/0005 ,  B29C70/06 ,  B29K2077/00 ,  B29L2007/002 ,  C08J5/04 ,  C08J2377/06 ,  C08J2377/12 ,  C08L77/06 ,  C08L77/12

    Abstract: A composition including at least one polyamide polymer obtained from at least one reactive polyamide prepolymer including at least one chain extender (PA1-All1-PA1), the polyamide polymer being prepared at a temperature T1 no lower than the temperature melting temperature or glass transition temperature of the polymer and having a mean molecular weight Mn1. The composition has a melt viscosity which can be modulated according to the temperature to which the composition is exposed, wherein the temperature is between T2 and T3, T2 and T3 being higher than T1, and the melt viscosity η2 or η′3 observed at the temperature T2 or T3, respectively, being lower than the melt viscosity η2 or η3 of the polyamide polymer, which does not include a chain extender and has the same mean molecular weight Mn1(PA1) observed at the same temperature T2 or T3. The composition includes one or more polyamides.

    Abstract translation: 一种组合物，其包含至少一种聚酰胺聚合物，其由至少一种包含至少一种扩链剂（PA1-All1-PA1）的反应性聚酰胺预聚物获得，所述聚酰胺聚合物在不低于温度熔融温度或玻璃化转变温度 的聚合物并且具有平均分子量Mn1。 该组合物具有根据组合物暴露温度调节的熔体粘度，其中温度在T2和T3之间，T2和T3高于T1，熔体粘度η2或η'3 温度T2或T3分别低于聚酰胺聚合物的熔体粘度η2或η3，聚酰胺聚合物不包含扩链剂，并且在相同温度T2或T3下观察到相同的平均分子量Mn1（PA1）。 该组合物包括一种或多种聚酰胺。

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