COMPOSITION BASED ON POLY (ARYLENE ETHER KETONE) HAVING IMPROVED PROPERTIES

    公开(公告)号:US20190203044A1

    公开(公告)日:2019-07-04

    申请号:US16204290

    申请日:2018-11-29

    Applicant: ARKEMA FRANCE

    CPC classification number: C08L71/00 C08G2650/40 C08L2205/02 C08L2205/025

    Abstract: A composition based on poly(ether ether ketone) (PEEK) including poly(ether ketone ketone) (PEKK), wherein the poly(ether ketone ketone) (PEKK) includes a mixture of terephthalic and isophthalic units, the percentage by weight of terephthalic units, with respect to the sum of the terephthalic and isophthalic units, being between 55 and 85%, limits included, and preferably between 55 and 70%, the composition including between 1 and 40%, limits included, preferably between 5 and 40% and more preferably still between 10 and 30% by weight of PEKK, with respect to the total weight of the composition.

    MOLDING COMPOSITIONS REINFORCED WITH GLASS FIBERS HAVING IMPROVED IMPACT PROPERTIES

    公开(公告)号:US20230127646A1

    公开(公告)日:2023-04-27

    申请号:US17905959

    申请日:2021-03-23

    Applicant: ARKEMA FRANCE

    Abstract: A composition including: (A) from 29 to 74% by weight of at least one semi-crystalline aliphatic polyamide, the semi-crystalline aliphatic polyamide obtained from the polycondensation: of at least one C6 to C18 amino acid; or at least one C6 to C18 lactam; or at least one C4 to C36 diamine Ca with at least one C4 to C3 diacid Cb; (B) from 25 to 70% by weight of glass fibers mainly of silica dioxide (SiO2), aluminum oxide (Al2O3) and magnesium oxide (MgO); the glass fibers (B) having from 62 to 66% by weight of SiO2; (C) from 1 to 20% by weight of at least one impact modifier; and (D) from 0 to 2% by weight of at least one additive, excluding copper chromite, zinc sulfide, titanium dioxide, calcium carbonate and a polyolefin-based colored masterbatch; the sum of the various constituents (A) to (D) being 100% by weight.

    METHOD FOR IMPREGNATING REINFORCING FIBRES WITH POLYARYLETHERKETONES AND SEMI-PRODUCTS OBTAINED THEREFROM

    公开(公告)号:US20210130557A1

    公开(公告)日:2021-05-06

    申请号:US16500160

    申请日:2018-04-05

    Applicant: Arkema France

    Abstract: The invention is targeted mainly at a process for the preparation of a semifinished product comprising a PAEK-based resin and reinforcing fibers, comprising the stages of: a. preparation of a dispersion comprising a PAEK-based resin in the pulverulent form dispersed in an aqueous phase comprising a surfactant; b. bringing the reinforcing fibers into contact with said aqueous dispersion; c. drying the fibers impregnated with dispersion; and d. heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product, characterized in that the surfactant is a thermally stable surfactant. It is furthermore targeted at the dispersion of use in said process. Finally, it is targeted at the semifinished products capable of being obtained and also at their use in the manufacture of composite materials.

    USE OF PEKK FOR PRODUCING PARTS WITH LOW GAS PERMEABILITY

    公开(公告)号:US20200377654A1

    公开(公告)日:2020-12-03

    申请号:US16766360

    申请日:2018-11-27

    Applicant: Arkema France

    Abstract: The use of PEKK for lowering the CO2 and H2S permeability of a part intended to enter into contact with a petroleum effluent. Also, a pipe for transporting a petroleum effluent, including a layer intended to be in contact with the petroleum effluent, wherein the layer intended to be in contact with the petroleum effluent comprises PEKK and has a CO2 permeability at 130° C. of less than 10−8 cm3, for a thickness of 1 cm and a surface area of 1 cm2 and per second and bar of CO2 pressure and/or an H2S permeability at 130° C. of less than 10−8 cm3 for a thickness of 1 cm and a surface area of 1 cm2 and per second and bar of H2S pressure, the amount of CO2 and H2S being measured by GC, respectively. Lastly, a number of methods for manufacturing such a pipe.

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