FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER OF OPTIMUM MOLECULAR MASS AND VISCOSITY AND METHOD FOR THE PRODUCTION THEREOF

    公开(公告)号:US20220081520A1

    公开(公告)日:2022-03-17

    申请号:US17416098

    申请日:2019-12-17

    申请人: Arkema France

    IPC分类号: C08J5/04

    摘要: The present invention concerns an impregnated fibrous material comprising at least one continuous-fiber fibrous material in the form of a roving or a plurality of parallel rovings and at least one thermoplastic polymer matrix, characterized in that said at least one thermoplastic polymer is an amorphous or semi-crystalline polymer having a glass transition temperature such that Tg≥40° C., especially Tg≥100° C., in particular ≥120° C., the fiber content of said impregnated fibrous material being from 45 to 65% by volume, preferably from 50 to 60% by volume, especially from 54 to 60% by volume, the number-average molecular mass Mn of said thermoplastic polymer being from 11,000 to 25,000 g/mol, the melt viscosity of said thermoplastic polymer being from 80 to 1500 Pa·s, as measured by plane-plane rheology at 1 Hz and 2% deformation, at a temperature of Tg+220° C.

    COMPOSITION MADE FROM POLYAMIDE MXD.10
    2.
    发明申请
    COMPOSITION MADE FROM POLYAMIDE MXD.10 有权
    来自聚酰胺MXD.10的组合物

    公开(公告)号:US20160122540A1

    公开(公告)日:2016-05-05

    申请号:US14897556

    申请日:2014-06-02

    申请人: ARKEMA FRANCE

    IPC分类号: C08L77/06 B29C45/00 C08J3/22

    摘要: The invention concerns a composition comprising a first polyamide, a second polyamide, different from the first polyamide, and 0.1 to 5% by weight of carbonaceous nanofillers, in which: a) the first polyamide comprises a unit derived from the condensation of meta-xylylene diamine or from a mixture of meta-xylylene diamine and para-xylylene diamine with sebacic acid, said first polyamide having a melting temperature Tf1; and b) the second polyamide has a melting temperature Tf2 higher than or equal to Tf1−40° C. The invention also relates to a method for producing said composition and the use thereof for producing various items.

    摘要翻译: 本发明涉及包含第一聚酰胺,不同于第一聚酰胺的第二聚酰胺和0.1至5重量%的碳质纳米填料的组合物,其中:a)第一聚酰胺包含衍生自间二甲苯的缩合的单元 二胺或间二甲苯二胺和对二甲苯二胺与癸二酸的混合物,所述第一聚酰胺具有熔融温度Tf1; 和b)第二聚酰胺的熔融温度Tf2高于或等于Tf1-40℃。本发明还涉及制备所述组合物的方法及其用于生产各种物品的用途。

    COMPOSITIONS OF POLYAMIDE AND PEBA FOR THE INJECTION OF FATIGUE-RESISTANT RIGID PARTS

    公开(公告)号:US20180171140A1

    公开(公告)日:2018-06-21

    申请号:US15127607

    申请日:2015-03-23

    申请人: ARKEMA FRANCE

    IPC分类号: C08L77/02 A43B5/04

    摘要: Composition including: (A) 50% to 95% of at least one semicrystalline polyamide of formula A/Z in which: A is an aliphatic repeating unit chosen from a unit obtained from the polycondensation of at least one amino acid and a unit obtained from the polycondensation of at least one lactam or a unit X.Y obtained from the polycondensation of at least one diamine, and of at least one dicarboxylic acid, and Z represents another polyamide and is included from 0 to 20%; (B) 5% to 50% of at least one semicrystalline copolyamide comprising amide units (Ba1) and including polyether units (Ba2), having a glass transition temperature (Tg) below 75° C.; (C) 0% to 20% by weight of fibres and/or fillers, (D) 0% to 20% of at least one impact modifier, (E) 0% to 5% of at least one additive, for the manufacture of a sports article.

    Method for manufacturing a product made from polyaryletherketone and corresponding product

    公开(公告)号:US20230089774A1

    公开(公告)日:2023-03-23

    申请号:US17790197

    申请日:2020-12-18

    申请人: ARKEMA FRANCE

    IPC分类号: B29C43/00 C08G65/40 B29C43/52

    摘要: A process including: the provision of a semicrystalline or crystallizable composition, having a glass transition temperature Tg, including at least one polyaryletherketone; the provision of a compression forming means including: a mold, the mold having at least one cavity; the preparation of the composition in the molten state in said at least one cavity, the mold having a temperature T0 at the end of the preparation stage; the compression and the cooling of the composition in the molten state, the mold being cooled from the temperature T0 down to a final temperature Tfof less than or equal to (Tg+30)° C., to form a compression-formed article; and the removal of the compression-formed article from the mold; in which the composition has a melting point strictly of less than 340° C.

    METHOD FOR PREPARING AN IMPREGNATED FIBROUS MATERIAL BY REACTIVE PULTRUSION

    公开(公告)号:US20220275157A1

    公开(公告)日:2022-09-01

    申请号:US17624653

    申请日:2020-07-07

    申请人: Arkema France

    IPC分类号: C08J5/24 B29C70/52

    摘要: A method for manufacturing at least one impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer, the method including a step of impregnating the at least one fibrous material in a pultrusion head by injecting a reactive composition in the melt state including at least one precursor of the thermoplastic polymer in the presence of the fibrous material, the at least one fibrous material on entry into the pultrusion head being divided in its thickness into layers, with each layer circulating in its own channel within the pultrusion head, the reactive composition being injected into each channel and/or between the layers when they are recombined at the exit from each channel, the channel being heated, in which the precursors of the thermoplastic polymer are at least partly polymerized.

    METHOD FOR PRODUCING A COPOLYMER FOAM WITH POLYAMIDE BLOCKS AND POLYETHER BLOCKS

    公开(公告)号:US20210261745A1

    公开(公告)日:2021-08-26

    申请号:US17256721

    申请日:2019-07-02

    申请人: Arkema France

    摘要: The invention relates to a process for manufacturing a copolymer foam containing polyamide blocks and polyether blocks, comprising the following steps: mixing the copolymer melt with a blowing agent, said copolymer having a coefficient of thermal diffusivity a and a crystallization temperature Tc; providing a mold of thickness h at a temperature Tm; injecting the mixture of the copolymer and of the blowing agent at a temperature Tp, into the closed mold; foaming the mixture by opening the mold; in which the maintenance time between the injection of the mixture of the copolymer and of the blowing agent into the closed mold and the opening of the mold is within the range extending from (topt−25%) to (topt+25%), topt being expressed in seconds and obtained by equation (I): t opt = - 1 π 2 ⁢ h 2 a ⁢ ln ⁡ ( π 4 ⁢ T m - T c T m - T p ) , ( I ) in which a is expressed in m2/s, h is expressed in m and Tm, Tc and Tp are expressed in ° C.

    NON-CROSSLINKED COPOLYMER FOAM COMPOSITION WITH POLYAMIDE BLOCKS AND POLYETHER BLOCKS

    公开(公告)号:US20190382546A1

    公开(公告)日:2019-12-19

    申请号:US16468197

    申请日:2018-02-08

    申请人: Arkema France

    摘要: The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising: from 90 to 99.9% by weight of said block copolymer; and from 0.01 to 10% by weight of metal carbonate, for the total weight of the foam composition. The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.